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Ecological restoration method for lakeside wetland
ActiveCN101955261APromote growthSmall processing pressureSustainable biological treatmentBiological water/sewage treatmentConstructed wetlandShoot
The invention discloses an ecological restoration method for a lakeside wetland. In the method, hygrophilous woody plants are planted in a lakeside zone to construct wetland plant communities. The hygrophilous woody plants comprise hygrophilous arbor and hygrophilous shrub, wherein the hygrophilous arbor comprises willows, metasequoia, ascendens mucronatum, taxodium ascendens brongn and bamboo; the hygrophilous shrub comprises iteaceae and S.integra thrnb; and the plants are planted in the way of shoot cottage or soil ball transplant. The hygrophilous woody plants are perennial plants, have a low growth rate, low biomass, low growth amount and low plant disposal pressure and do not need felling and refloating every year, so that the defects of frequently harvesting and refloating herbal emergent aquatic plant communities every year are overcome, the maintenance and management cost of lake wetland plant communities are reduced, the lakeside depositing rate is lowered, and the secondary pollution hidden danger to lake water bodies is relieved. Compared with the prior art, the method has the characteristics of convenient operation, maintenance and management, low maintenance cost, high ecological benefit, easy popularization and application and the like and can be used for ecological restoration engineering of lake and lakeside bottomlands, swamp marshes and shallow water zones.
Owner:云南省环境科学研究院(中国昆明高原湖泊国际研究中心)
Conversation inceptive protocol gateway master-slave conversion system and method
ActiveCN101115033AReduce message volumeImprove efficiencyError preventionNetwork connectionsSession Initiation ProtocolIp address
The invention discloses a main and a standby switching system of a session initiation protocol gateway and a corresponding method, which relates to the session initiation protocol gateway equipment in the network communication field, in particular to the main and the standby switching system and the accessible realization methods. The system comprises a mainboard (10) and a standby board (20) which respectively comprise a main network module and a standby network module (11,21), a main SIP protocol module and a standby SIP protocol module (12, 22), a main control module and a standby control module (13,23), and a main HA module and a standby HA module (14,24). Between the main board and the standby board (10,20), a card interface is used for achieving the physical link connectivity in the system, the main board and the standby board (10,20) has an independent IP address and an physical address and achieves the logic link connectivity through socket communication. The invention is applicable to the software synchronization of the gateway main and standby switching systems based on the SIP and also applicable to the software synchronization of the gateway main and standby switching systems based on the other non-SIP.
Owner:武汉市中光通信公司
Biological response system for multistage sewage treatment as well as manufacturing method and sewage treatment method
InactiveCN102120677AEasy to handleIncrease the permeability coefficientMultistage water/sewage treatmentDecompositionEngineering
The invention discloses a biological response system for multistage sewage treatment as well as a manufacturing method and a sewage treatment method. The biological response system is formed by connecting a multistage precipitation pretreatment unit, a multistage hydrolysis and acidizing treatment unit, an aeration oxygenation treatment unit and a multistage undercurrent wetland treatment unit through pipelines; the multistage undercurrent wetland treatment unit comprises a water inlet wetland pool, two groups of decomposition and percolation wetland pools and a water outlet wetland pool which are sequentially arrayed; and the multistage precipitation pretreatment unit, the multistage hydrolysis and acidizing treatment unit and the aeration oxygenation treatment unit are sequentially arranged on one side of the multistage undercurrent wetland treatment unit in parallel and are connected with one another through pipelines. The biological response system provided by the invention has the advantages of scientific design, reasonable structure, fewer electromechanical devices due to the adoption of an automatic flow mode, low operation cost, low sewage treatment expense, small floor area, obvious sewage treatment effect, convenience for operation and maintenance management, low cost on project capital construction and operation, and capability of carrying out purification treatment all the year round, ; the treated sewage can be directly discharged into reservoirs, rivers and lakes and is in accordance with discharge standards in China; and a bioecological technology has stronger self-regulation capability and repair capability.
Owner:TIANJIN WATER RESOURCES RES INST
Undercurrent-surface current composite artificial marshland
ActiveCN101113050APlay the role of purifying sewageImprove water purification efficiencySustainable biological treatmentBiological water/sewage treatmentConstructed wetlandWater quality
The invention provides a subsurface flow and surface flow complex manmade wetland. The complex manmade wetland comprises a land, a subsurface reservoir and a surface reservoir, a surface collecting pool and a subsurface collecting pool. One side of the land is provided with the subsurface reservoir and the surface collecting pool, and the other side of the land is provided with the subsurface collecting pool and the surface collecting pool. The subsoil of the land is filled with a gravel layer, and the upper soil is covered with a pastoral earth; the filling depth ratio between the gravel layer and the pastoral earth is 3: 2. Emersed plant, floating plant and submerged plant are planted on the pastoral earth of the upper soil of the land; the subsurface collecting pool is communicated with the surface reservoir through a water pipe equipped with a valve. The invention combines the advantages of subsurface wetland and surface wetland such as high water purification efficiency, high water quality, high hydraulic load, low investment and operational charge, and good treatment effect; according to actual need, a plurality of measures can be used such as alternatively adopting subsurface flow and surface flow, subsurface flow and surface flow.
Owner:SHANDONG UNIV
Rise and fall artificial floating floor of plants for biological treating sewage, preparation method and method of application
InactiveCN101003408AInhibit algae growthPrevent eutrophicationSustainable biological treatmentBiological water/sewage treatmentSurvival periodRoot system
This invention discloses a method for producing rise-fall artificial plant floating bed for wastewater biological treatment. The main body of the floating bed is hollow and sealed, and a planting groove is set on the main body. Filler and plants are placed in the planting groove. A support is set in the planting groove, which is connected with water body. Bed connectors are placed surrounding the main body of the floating bed. At least two main bodies are combined to form the floating bed, which is placed on the water surface. The roots of the plants on the floating bed can realize filtration, absorption and adsorption of pollutive substances in wastewater. The floating bed is sinked into the non-frozen layer below water surface in winter, and taken out of water surface inspring. The plants are left for further filtration, absorption and adsorption of pollutive substances in wastewater. This invention has such advantages as short project period, and rapid acting. Plants of the floating bed have a survival period of more than 8 months / year. The planting can match city landscape, thus are good for city afforestation, and can reduce secondary assembly cost. The floating bed just needs replanting in spring.
Owner:TIANJIN WATER CONSERVANCY INST
Method for controlling reactive-load compensation capacitor and capable of on-line detecting and reactive-load compensation controller thereof
InactiveCN101232188ACompensation effectTo achieve the purpose of loss reduction and energy savingReactive power adjustment/elimination/compensationElectric variable regulationCapacitanceMultiway switching
The invention discloses a method for online detecting and controlling reactive compensation capacitor and a reactive compensation controller. The method can execute online detection and control of a reactive compensation capacitor through an external electrical parameter extraction circuit, an AC conversion circuit, a sampling hold circuit, a multi-way switch, an A / D conversion circuit, a CPU and a memory, which are sequentially connected with each other, and a display alarm circuit and a switch circuit connected with the CPU. The invention can detect the work condition online and the performance parameter of the capacitor, and determine the disabled capacitor group when the running capacitors can not operate normally due to the increase of the three phase capacitances and difference thereof or the dielectric loss, thus obviating long-term operation of disabled capacitor and enhancing the compensation effect.
Owner:陈劲游
Production process for removing carbon dioxide from smoke and preparing ammonium compound fertilizer and light calcium carbonate
InactiveCN101890283AReduce volumeSmall footprintCalcium/strontium/barium carbonatesProductsCycloneAmmonium compounds
The invention relates to a production process for removing carbon dioxide from smoke and preparing ammonium compound fertilizer and light calcium carbonate. The process comprises the following steps of: performing gas-liquid two-phase high strength mass transfer absorption reaction on the primary smoke through a super-gravity field absorption tower by using dilute aqueous ammonia as an absorbent to remove carbon, discharging the treated smoke through a chimney, and performing further reaction treatment on byproducts of the carbon removal reaction to obtain the ammonium compound fertilizer and the light calcium carbonate with good economic values. The whole set of reaction and separation device for supporting the process comprises the super-gravity field absorption tower, a static mixer 19, a deep reaction tank 20, a cyclone 24, an ammonium compound fertilizer reclaiming system 26, a light calcium carbonate reclaiming system 28, various pumps and the like, wherein the super-gravity field absorption tower is used at a chemical reaction absorption section for removing the carbon dioxide. The brand-new process has the advantages of high efficiency, low investment and low running expense.
Owner:刘海清
Constant-effluent variable-load SVBR sewage processing technology
ActiveCN103936148AImprove capacity utilizationAvoid secondary promotionTreatment with aerobic and anaerobic processesSewageSewage treatment
The invention relates to a constant-effluent variable-load SVBR sewage processing technology. The technology comprises the following steps: introducing sewage into an inflow and sludge reflux well, primarily processing the sewage by a grating, then mixing the sewage with reflux sludge, transporting the sewage to an anaerobic and primary sedimentation zone by a lifting pump, then processing the sewage in an AO biological processing area, further purifying the sewage and carrying out primary sludge-water separation in an anoxic and pre-sedimentation zone, finally carrying out final sludge-water separation in a secondary sedimentation and effluent zone, disinfecting the effluent by a tube-type ultraviolet disinfector, and discharging the disinfected effluent out of the system. Through the optimized combination of various functional zones and the circulating reflux design, the sewage processing technology allows the inflow rate and the water level and load in the reactor to change within a designed range, the effluent rate of the system always remains relatively constant and continuous, and the processing process is a continuous non-stable process. The sewage processing technology integrates the functions of lifting, modulating, primary settlement, biological degradation, secondary settlement, and sludge reflux in one tank, has the characteristics of little occupied area and equipment, and simpleness in operation and management, and is especially applicable to the sewage treatment in small towns.
Owner:SDIC XINKAI WATER ENVIRONMENT INVESTMENT CO LTD
Sewage treatment integrated device enabling gravitational self-refluxing of activated sludge
ActiveCN105236552AImprove precipitation effectImprove the water effectSustainable biological treatmentBiological water/sewage treatmentActivated sludgeBiochemical engineering
The invention relates to the field of sewage treatment, and discloses a sewage treatment integrated device enabling gravitational self-refluxing of activated sludge. The device comprises an integrated treatment tank which is internally provided with a circularly arranged partitioning guide plate and is divided into a biochemical region and a settling region; the biochemical region is positioned in a region surrounded by the partitioning guide plate, and the settling region is positioned in a region surrounded by the partitioning guide plate and the wall of the integrated treatment tank; the lower end of the partitioning guide plate inclines toward the wall of the integrated treatment tank and is connected with the wall; a plurality of sludge gravitational refluxing pipes communicating with the bottom of the settling region are arranged in the periphery of the partitioning guide plate; a water inlet chute which is peripherally arranged is formed in the upper part on the outside of the partitioning guide plate; an effluent weir slot which is lower than the opening of the water inlet chute is arranged at the periphery of the water inlet chute; a drain pump is arranged in the bottom of the biochemical region; the drain pump is connected to the water inlet chute through a pipeline. The device disclosed by the invention is convenient in structural configuration and operation management, so that the effluent effect is improved while the occupied area and the investment cost are reduced.
Owner:THUNIP CORP LTD +1
Energy-saving type treatment device for MBR (membrane biological reactor) oxidation ditch sewage
ActiveCN103951063AEliminates adverse transverse shearExtended service lifeTreatment with aerobic and anaerobic processesButt jointSmall footprint
The invention relates to the technical field of treating sewage by utilizing a biological technology and discloses an energy-saving type treatment device for MBR (membrane biological reactor) oxidation ditch sewage. The energy-saving type treatment device comprises an oxidization ditch biochemical reaction region and a membrane region, wherein a straight gallery of the membrane region and an S-shaped gallery of the oxidization ditch biological reaction region are in butt joint from the beginning to the end to form a circulating gallery; a penetrating tracery wall flat plate is overhead arranged on the bottom of the membrane region and used for dividing the membrane region into a membrane tank and a water distribution region from top to bottom; water distribution holes are uniformly distributed in the penetrating tracery wall flat plate; a membrane region water inlet is formed in the front end of the water distribution region; a membrane assembly and a water outlet tube are arranged in the membrane tank; the oxidization ditch biological reaction region is equipped with a water inlet device, a residual sludge outlet, a pushing device and an aeration device. According to the energy-saving type treatment device disclosed by the invention, the oxidization ditch process is organically combined with the membrane biological reactor; by utilizing hydraulic operation characteristics of large-flow circulating plug-flow state of the oxidization ditch process, mixed liquor in a groove is circulated and quickly flows through an MBR membrane set to realize solid-liquid separation, and therefore, the energy-saving type treatment device has the advantages of simple and compact structure, low operation energy consumption, small floor area, less investment, high pollutant removing efficiency and the like.
Owner:GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD
Three-dike two-passage reinforced surface flow artificial wetland and operation method of three-dike two-passage reinforced surface flow artificial wetland
ActiveCN105174482AFully purifiedKeep aliveTreatment using aerobic processesSustainable biological treatmentConstructed wetlandSewage
The invention provides three-dike two-passage reinforced surface flow artificial wetland and an operation method of the three-dike two-passage reinforced surface flow artificial wetland. The artificial wetland comprises a bed body and a substrate, wherein the inside of the bed body is filled with the substrate; the cross section of the bed body is in a rectangular shape; the bed body is inclined from the water inlet end to the water outlet end in the length direction; two ditches are arranged in the substrate to form three dikes including a left side dike, a middle dike and a right side dike. According to the operation method, (1), when the height of the middle dike is lower than that of the left side dike and the right side dike, the submerging operation is adopted; (2) when the height of the middle dike is greater than the height of the left side and the height of the left side dike, the non-immersing operation is adopted; (3) when the height of the middle dike is identical to the height of the left side dike and the height of the right side dike, dry and wet alternate operation is adopted. The structure of the artificial wetland is changed; the sewage treatment area and the biodiversity are increased; the defects of great occupied area and low efficiency of the artificial wetland are overcome; meanwhile, after one passage is changed into two passages, the dry and wet alternate operation of the treatment process can be realized; the biodiversity is realized; the sewage processing efficiency is obviously improved.
Owner:SHANDONG UNIV
Differential double-impeller underwater fine-bubble aeration device and method thereof
PendingCN108503052AMaintain aerationAeration is not cloggedWater aerationSustainable biological treatmentImpellerContact time
The invention relates to the field of water pollution control, and particularly provides differential double-impeller underwater fine-bubble aeration device and method thereof. The device comprises amotor arranged on a platform and an underwater base, wherein a drive shaft is arranged between the motor and the bearing of the base to be taken as power source of an aeration impeller; a high speed impeller directly connected with the drive shaft and a low speed impeller connected with the drive shaft by a speed reducer are arranged at the bottom of the drive shaft; a spoiler is arranged at the lower part of each of the two impellers, a guide cylinder is arranged at the upper part of each impeller, the impellers rotate to sputter water and gas to the horizontal direction, to form a vacuum state, so that gas and water are sucked into the guide cylinder; and an annular buoy for regulating water-gas ratio is arranged above the guide cylinder. The invention also provides a method for debugging specific parameters of the device. Aiming at the technical problems of large bubbles, short gas-liquid contact time and poor oxygen dissolving efficiency of existing impeller aeration technology, the invention provides a simple and reliable solution.
Owner:ANHUI UNIVERSITY OF ARCHITECTURE
Safety and stability control method and system of power system based on strategy flexible configuration
PendingCN112821360AGuaranteed uptimeImprove safety and reliabilityEmergency protective circuit arrangementsStabilization controlElectric power system
The invention discloses a safety and stability control method and system for a power system based on strategy flexible configuration, and the method comprises the steps: carrying out the normalization processing of an existing safety control strategy and a system configuration scheme, obtaining different types of normalized fixed value tables, carrying out the logic configuration of the safety control strategy of each element based on the normalized fixed value tables, and carrying out the logic configuration of the safety control strategy of each element; generating a software program executable by the device; judging whether a target element is in an operation state or not based on an element operation criterion by utilizing the software program; when it is determined that the target element is in the operation state, judging whether the safety control device enters a starting state based on element protection starting criteria, and meanwhile judging whether the target source element is in an overload state or not based on element overload criteria; when it is determined that the safety control device corresponding to the target element enters the starting state, determining whether the target element is in a tripping state or not based on an element tripping criterion; and when it is determined that the target element is in the tripping state or the overload state, performing protection action.
Owner:CHINA ELECTRIC POWER RES INST +2
Cooling tower used for iron and steel industry
The invention discloses a cooling tower used for the iron and steel industry. The cooling tower comprises an air guide cylinder, a tower body, a water collector, a planar screen, a water collecting disc, a spray pushing device and a water inlet pipe. The air guide cylinder is of an open structure and is arranged at the top end of the tower body. The water collector is arranged on the upper portion of the tower body transversely. The planar screen is arranged in the middle of the tower body. The water collecting disc is arranged on the lower portion of the tower body. The spray pushing device is arranged above the center of the planar screen. One end of the water inlet pipe is arranged below the spray pushing device, and the other end of the water inlet pipe is arranged at the bottom of the tower body. A water outlet pipe is further arranged below the water collecting disc. The cooling tower used for the iron and steel industry is simple in structure, no motor or speed reducer or electric-control equipment or filler is used, the cooling effect is stable, the operation weight is low, energy is saved, and operation and maintenance management is convenient.
Owner:XINXIELI PRESS PLATE
Lateral water distribution MBR (Membrane Biological Reactor)
ActiveCN103570122AEasy operation, maintenance and managementConducive to integrated layoutBiological water/sewage treatmentRefluxBiological reactor
The invention discloses a lateral water distribution MBR (Membrane Biological Reactor). The lateral water distribution MBR comprises a sewage treatment room and an equipment room which are adjacently arranged side by side, wherein the sewage treatment room comprises a first membrane tank section, a first feed water distribution channel, a middle internal reflux channel, a second membrane tank section and a second feed water distribution channel, the sewage treatment room is of a middle symmetrical structure and is divided into the two membrane tank sections by the middle internal reflux channel, the two outer sides of the two membrane tank sections are respectively provided with the feed water distribution channels, multiple groups of MBR membrane tanks are respectively arranged in the two membrane tank sections, and the feed water distribution channels can be used for simultaneously carrying out concentrated and uniform water distribution for each MBR membrane tank, so that the side channel water distribution is realized; the middle internal reflux channel can be used for simultaneously carrying out concentrated reflux and water yielding for the MBR membrane tanks. The lateral water distribution MBR is compact in structure, occupies a small area, can realize the concentrated water distribution, concentrated reflux and concentrated air purging for the MBR membrane tanks and has the advantages of small water head loss and low energy consumption.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
Energy-saving type treatment device for MBR (membrane biological reactor) oxidation ditch sewage
ActiveCN103951063BFast pushEliminate adverse effects of separationTreatment with aerobic and anaerobic processesEngineeringSmall footprint
The invention relates to the technical field of treating sewage by utilizing a biological technology and discloses an energy-saving type treatment device for MBR (membrane biological reactor) oxidation ditch sewage. The energy-saving type treatment device comprises an oxidization ditch biochemical reaction region and a membrane region, wherein a straight gallery of the membrane region and an S-shaped gallery of the oxidization ditch biological reaction region are in butt joint from the beginning to the end to form a circulating gallery; a penetrating tracery wall flat plate is overhead arranged on the bottom of the membrane region and used for dividing the membrane region into a membrane tank and a water distribution region from top to bottom; water distribution holes are uniformly distributed in the penetrating tracery wall flat plate; a membrane region water inlet is formed in the front end of the water distribution region; a membrane assembly and a water outlet tube are arranged in the membrane tank; the oxidization ditch biological reaction region is equipped with a water inlet device, a residual sludge outlet, a pushing device and an aeration device. According to the energy-saving type treatment device disclosed by the invention, the oxidization ditch process is organically combined with the membrane biological reactor; by utilizing hydraulic operation characteristics of large-flow circulating plug-flow state of the oxidization ditch process, mixed liquor in a groove is circulated and quickly flows through an MBR membrane set to realize solid-liquid separation, and therefore, the energy-saving type treatment device has the advantages of simple and compact structure, low operation energy consumption, small floor area, less investment, high pollutant removing efficiency and the like.
Owner:GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD
Aquatic animal enhanced surface flow artificial wetland
ActiveCN104817187AImprove stabilityIncrease contactSustainable biological treatmentBiological water/sewage treatmentConstructed wetlandAquatic animal
The invention provides an aquatic animal enhanced surface flow artificial wetland consisting of a water inlet pipe, a perforated water-distributing plate, a bed body, aquatic plants, fish ditches, fish pits, a fish screen and a water outlet pipe. The bed body of the wetland is filled with light and medium loams, the aquatic plants are planted on the bed body, water ditches are dug out on two side surfaces of the bed body to serve as the fish ditches, water pits are dug out in the middle of the surface flow artificial wetland or at two ends of the bed body to serve as the fish pits, and the total area of the fish ditches and the fish pits occupies 20-30% of the area of the bed body. Aquatic animals namely loaches and field snails are added into the wetland to improve the stability of microbial populations in a bed material of the wetland, increase the contact between bed mud and a water body, reduce the accumulation of organic matters of the bed mud, and significantly reduce the turbidity of the water body; and by using the fish ditches and the fish pits, the contact area between the bed body of the wetland and the water body can be increased, and the adsorbing and degrading capacities of the bed material of the wetland to pollutants in the water are increased.
Owner:SHANDONG UNIV
Phosphorus removal adsorption microsphere, adsorption column and application in water treatment
ActiveCN111346614AImprove removal efficiencyIncrease switching capacityOther chemical processesWaste water treatment from animal processingMicrosphereWater treatment
The invention discloses a phosphorus removal adsorption microsphere, which is prepared by the following method: step 1, crushing: crushing raw materials including desulfurized gypsum, steel slag, bentonite, knar clay and glutinous rice flour to 80-120 meshes; step 2, weighing and mixing: uniformly mixing the crushed raw materials to form a mixture, and mixing the mixture according to certain partsby weight; 3, granulating: adding water into the mixture, and granulating to obtain granules with the size of 1-2 mm; and step 4, drying: drying the particles, and firing the dried particles to finally obtain the phosphorus removal adsorption microspheres. The phosphorus removal adsorption microsphere has the advantages of low cost, simple preparation process and realization of resource utilization of solid wastes. The invention further provides an adsorption column filled with the phosphorus removal adsorption microspheres and application of the adsorption column in wastewater treatment. Theinvention also discloses an application of the phosphorus removal adsorption microspheres in slaughter wastewater treatment.
Owner:CHINA MEAT RES CENT
Oxidation ditch and MBBR integrated sewage treatment equipment
PendingCN110902941AHigh strengthIncrease productivityTreatment using aerobic processesTreatment with anaerobic digestion processesMoving bed biofilm reactorOxidation ditch
The invention discloses oxidation ditch and MBBR(Moving Bed Biofilm Reactor)integrated sewage treatment equipment. The oxidation ditch and MBBR integrated sewage treatment equipment comprises a horizontal shell, a water inlet and a water outlet, the water inlet and the water outlet are formed in the horizontal shell respectively, the horizontal shell is provided with a main partition plate and divided into at least three cabins in the length direction, and an A / O area is communicated with a settling area through a pipeline; an overflow opening / water passing opening is arranged on the main partition plate between the settling area and a water outlet area. The oxidation ditch and MBBR integrated sewage treatment equipment is characterized in that the oxidation ditch and MBBR integrated sewage treatment equipment is from left to right sequentially provided with at least one cabin as the A / O area, at least one cabin as the settling area, and at least one cabin as the water outlet area, a partition plate is arranged in the A / O area and divides the A / O area into an anoxic tank and an aerobic tank in the length direction of the horizontal shell, an overflow opening / water passing opening is formed in the partition plate, an aeration device is arranged in the aerobic tank, and a branch partition plate is arranged in the anoxic tank in the length direction of the horizontal shell and divides the anoxic tank into two cavities communicating end to end, the two cavities are respectively an anaerobic section and an anoxic section, an oxidation ditch circulation channel is formed, and thewater inlet is positioned at the anaerobic section of the anoxic tank.
Owner:LINGZHI ENVIRONMENTAL PROTECTION CO LTD +3
Multi-stage dust remover adopting bionic vanes for improving dust removing efficiency
The invention provides a multi-stage dust remover by adopting bionic vanes for improving dust removing efficiency. The multi-stage dust remover comprises an inertial dust removing device, a bionic vane device and a spraying wet-type dust removing device, wherein the inertial dust removing device is in through connection with the bionic vane device; the bionic vane device is in through connection with the spraying wet-type dust removing device. By skillfully integrating an ordinary inertial dust remover with bionic vanes, a dry-type dust removing device and the spraying wet-type dust removing device, the formed multi-stage dust remover can be used for processing life and industrial dust with the over-standard concentration, and has the advantages of being light in weight, simple in structure, low in price, easy to maintain, convenient to operate and manage and the like.
Owner:FUJIAN UNIV OF TECH
Constructed Wetland with Three Dikes and Two Channels Enhanced Surface Flow and Its Operation Method
ActiveCN105174482BImprove processing efficiencyLarge processing areaTreatment using aerobic processesSustainable biological treatmentConstructed wetlandEngineering
The invention provides three-dike two-passage reinforced surface flow artificial wetland and an operation method of the three-dike two-passage reinforced surface flow artificial wetland. The artificial wetland comprises a bed body and a substrate, wherein the inside of the bed body is filled with the substrate; the cross section of the bed body is in a rectangular shape; the bed body is inclined from the water inlet end to the water outlet end in the length direction; two ditches are arranged in the substrate to form three dikes including a left side dike, a middle dike and a right side dike. According to the operation method, (1), when the height of the middle dike is lower than that of the left side dike and the right side dike, the submerging operation is adopted; (2) when the height of the middle dike is greater than the height of the left side and the height of the left side dike, the non-immersing operation is adopted; (3) when the height of the middle dike is identical to the height of the left side dike and the height of the right side dike, dry and wet alternate operation is adopted. The structure of the artificial wetland is changed; the sewage treatment area and the biodiversity are increased; the defects of great occupied area and low efficiency of the artificial wetland are overcome; meanwhile, after one passage is changed into two passages, the dry and wet alternate operation of the treatment process can be realized; the biodiversity is realized; the sewage processing efficiency is obviously improved.
Owner:SHANDONG UNIV
An Aquatic Animal Enhanced Surface Flow Constructed Wetland
ActiveCN104817187BImprove stabilityIncrease contactSustainable biological treatmentBiological water/sewage treatmentConstructed wetlandAquatic animal
The invention provides an aquatic animal enhanced surface flow artificial wetland consisting of a water inlet pipe, a perforated water-distributing plate, a bed body, aquatic plants, fish ditches, fish pits, a fish screen and a water outlet pipe. The bed body of the wetland is filled with light and medium loams, the aquatic plants are planted on the bed body, water ditches are dug out on two side surfaces of the bed body to serve as the fish ditches, water pits are dug out in the middle of the surface flow artificial wetland or at two ends of the bed body to serve as the fish pits, and the total area of the fish ditches and the fish pits occupies 20-30% of the area of the bed body. Aquatic animals namely loaches and field snails are added into the wetland to improve the stability of microbial populations in a bed material of the wetland, increase the contact between bed mud and a water body, reduce the accumulation of organic matters of the bed mud, and significantly reduce the turbidity of the water body; and by using the fish ditches and the fish pits, the contact area between the bed body of the wetland and the water body can be increased, and the adsorbing and degrading capacities of the bed material of the wetland to pollutants in the water are increased.
Owner:SHANDONG UNIV
An integrated device for activated sludge gravity self-return sewage treatment
ActiveCN105236552BImprove precipitation effectImprove the water effectSustainable biological treatmentBiological water/sewage treatmentActivated sludgeReflux
The invention relates to the field of sewage treatment, and discloses a sewage treatment integrated device enabling gravitational self-refluxing of activated sludge. The device comprises an integrated treatment tank which is internally provided with a circularly arranged partitioning guide plate and is divided into a biochemical region and a settling region; the biochemical region is positioned in a region surrounded by the partitioning guide plate, and the settling region is positioned in a region surrounded by the partitioning guide plate and the wall of the integrated treatment tank; the lower end of the partitioning guide plate inclines toward the wall of the integrated treatment tank and is connected with the wall; a plurality of sludge gravitational refluxing pipes communicating with the bottom of the settling region are arranged in the periphery of the partitioning guide plate; a water inlet chute which is peripherally arranged is formed in the upper part on the outside of the partitioning guide plate; an effluent weir slot which is lower than the opening of the water inlet chute is arranged at the periphery of the water inlet chute; a drain pump is arranged in the bottom of the biochemical region; the drain pump is connected to the water inlet chute through a pipeline. The device disclosed by the invention is convenient in structural configuration and operation management, so that the effluent effect is improved while the occupied area and the investment cost are reduced.
Owner:THUNIP CORP LTD +1
Arrangement method of outgoing line of hydropower station behind dam
ActiveCN108683082BOutlet layout is clearSave construction investmentBus-bar/wiring layoutsWater-power plantsPower stationTransformer
The invention discloses a method for arranging outgoing lines of a hydropower station at dam toe. A three-dimensional space between the main workshop and the auxiliary workshop of a hydropower stationbuilding and a dam body is utilizes, a main transformer is arranged on the ground space of the above-mentioned three-dimensional space and overhead wires are arranged in the upper space; the roof ofthe auxiliary workshop is provided with an outgoing line disconnecting switch and an outgoing line arrester; a door-type outlet frame is arranged on the roof of a common structural column at the junction of the main workshop and the auxiliary workshop. The outgoing line arrangement of the hydropower station is completed according to the requirements of the electrical equipment connection sequenceselected in a designed electrical wiring diagram. The method has the advantages of ensuring clear layout of outgoing lines of the hydropower station, little investment in power station construction, small floor space, and convenient operation and maintenance management under the premise of ensuring reliable electrical operation.
Owner:YELLOW RIVER ENG CONSULTING
An efficient and energy-saving mine cooling and water supply system
ActiveCN112983528BReduce in quantityReduce energy consumptionMining devicesGeothermal energy generationTap waterEngineering
Owner:CHINA UNIV OF MINING & TECH
A high-furrow enhanced surface flow constructed wetland system and its operation method
ActiveCN104628147BIncrease diversityImprove purification effectSustainable biological treatmentBiological water/sewage treatmentConstructed wetlandOperation mode
Owner:SHANDONG UNIV
A low-row enhanced surface flow constructed wetland system and its operating method
ActiveCN104671422BIncrease contact areaImprove adsorption and filtration efficiencySustainable biological treatmentBiological water/sewage treatmentConstructed wetlandFood chain
The invention provides a low bed reinforced surface flow constructed wetland system and operation methods thereof. The constructed wetland system comprises a water inlet pipe, water distribution weirs, a bed body, water outlet weirs and a water outlet pipe, wherein the bed body is filled with a matrix, the water inlet pipe and the water outlet pipe are arranged on the bed body, the water distribution weirs and the water outlet weirs are arranged on one side of the water inlet pipe and one the side of the water outlet pipe in the bed body respectively, the bottom surface of the bed body is inclined from a water inlet end to a water outlet end, the inclination is 3.5%-5%, and low beds are formed through ridging on the matrix surface. The low bed reinforced surface flow constructed wetland system has two operation methods including a submerged type and a non-submerged type. The low bed reinforced surface flow constructed wetland system has small occupied area and low investment and operation cost, the operation and maintenance management are convenient, the contact area of the matrix is increased, the absorption and filtering efficiency of the matrix is higher, emerged plants, submerged plants and floating plants are matched and planted, the plant diversity is improved, the sewage purification effect is improved, more appropriate living environment is provided for aquatic organisms, and the food chain of the constructed wetland system is more complete.
Owner:SHANDONG UNIV
A constant rheological load svbr sewage treatment process
ActiveCN103936148BAvoid secondary promotionImprove capacity utilizationTreatment with aerobic and anaerobic processesGratingUltraviolet
The invention relates to a constant-effluent variable-load SVBR sewage processing technology. The technology comprises the following steps: introducing sewage into an inflow and sludge reflux well, primarily processing the sewage by a grating, then mixing the sewage with reflux sludge, transporting the sewage to an anaerobic and primary sedimentation zone by a lifting pump, then processing the sewage in an AO biological processing area, further purifying the sewage and carrying out primary sludge-water separation in an anoxic and pre-sedimentation zone, finally carrying out final sludge-water separation in a secondary sedimentation and effluent zone, disinfecting the effluent by a tube-type ultraviolet disinfector, and discharging the disinfected effluent out of the system. Through the optimized combination of various functional zones and the circulating reflux design, the sewage processing technology allows the inflow rate and the water level and load in the reactor to change within a designed range, the effluent rate of the system always remains relatively constant and continuous, and the processing process is a continuous non-stable process. The sewage processing technology integrates the functions of lifting, modulating, primary settlement, biological degradation, secondary settlement, and sludge reflux in one tank, has the characteristics of little occupied area and equipment, and simpleness in operation and management, and is especially applicable to the sewage treatment in small towns.
Owner:SDIC XINKAI WATER ENVIRONMENT INVESTMENT CO LTD
A method of constructing wetland type river course
ActiveCN104032706BIncrease diversityReduce erosionSustainable biological treatmentMarine site engineeringConstructed wetlandPlant community
The invention relates to a method for constructing a wetland type river channel. A natural gentle slope type retaining wall is constructed in a land directional area from the position above a normal water line to the top of a protection slope by using soil engineering materials, tree and shrub vegetation is planted, emergent aquatic plants are respectively planted in a bottomland area and a shallow water area of the river channel, floating-leaved plants and submerged plants are planted adjacent to the emergent aquatic plant area, and the transverse width of the planting area on each side is equal to or smaller than one fourth the width of the water area of the river channel. According to the method for constructing the wetland type river channel, the foundation with the novel soil engineering materials, the biological protection slope provided with the novel soil engineering materials as the foundation and covered by the tree and shrub vegetation, a bottomland wetland with emergent aquatic plant community as the main body and a bank zone with the floating-leaved plant and submerged plant communities as the main body are constructed respectively on the wetland type river channel, and a river channel biological system with the complete structure and function is formed. The method for constructing the wetland type river channel is capable of obviously improving river water quality, good river channel landscape can be created, and the living quality of city residents can be improved.
Owner:TONGJI UNIV
Ecological restoration method for lakeside wetland
ActiveCN101955261BPromote growthSmall processing pressureSustainable biological treatmentBiological water/sewage treatmentConstructed wetlandPlant community
The invention discloses an ecological restoration method for a lakeside wetland. In the method, hygrophilous woody plants are planted in a lakeside zone to construct wetland plant communities. The hygrophilous woody plants comprise hygrophilous arbor and hygrophilous shrub, wherein the hygrophilous arbor comprises willows, metasequoia, ascendens mucronatum, taxodium ascendens brongn and bamboo; the hygrophilous shrub comprises iteaceae and S.integra thrnb; and the plants are planted in the way of shoot cottage or soil ball transplant. The hygrophilous woody plants are perennial plants, have alow growth rate, low biomass, low growth amount and low plant disposal pressure and do not need felling and refloating every year, so that the defects of frequently harvesting and refloating herbal emergent aquatic plant communities every year are overcome, the maintenance and management cost of lake wetland plant communities are reduced, the lakeside depositing rate is lowered, and the secondarypollution hidden danger to lake water bodies is relieved. Compared with the prior art, the method has the characteristics of convenient operation, maintenance and management, low maintenance cost, high ecological benefit, easy popularization and application and the like and can be used for ecological restoration engineering of lake and lakeside bottomlands, swamp marshes and shallow water zones.
Owner:云南省环境科学研究院(中国昆明高原湖泊国际研究中心)
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