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656 results about "Urban water" patented technology
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Urban water refers to all water that occurs in the urban environment and includes consideration of natural surface water and groundwater, water provided for potable use, sewage and other 'waste' waters, stormwater, flood services, recycling of water (third pipe, stormwater harvesting, sewer mining, managed aquifer recharge, etc.), techniques to ...
Stereo in-situ ecological urban water system repairing process
InactiveCN101021062AControl survivalPurify waterEnergy based wastewater treatmentHydraulic engineering apparatusMicrobial inoculationConstructed wetland
The stereo in-situ ecological urban water system repairing process tackles polluted water via the quantitative analysis on the water. The technological scheme includes physical simulation and mathematic model analysis, microbe inoculation and culture, constituting refluxing ecological filter bed, purification with biocarrier, artificial aeration, purifying upper water, pre-treatment in the blow down port, establishing water ecological system balance, perfecting water environment data, etc. The present invention realizes the comprehensive tackling of urban water system.
Owner:上海中渠生态环保科技有限公司
System and system for real-time monitoring and managing urban water resources
InactiveCN102184490AAchieve sustainable developmentImprove scalabilityData processing applicationsTime scheduleEnvironmental resource management
The invention provides a method and a system for real-time monitoring and managing urban water resources, and system equipment capable of finishing the method. The method comprises the steps of: real-time monitoring the urban water resources, real-time evaluating the urban water resources, real-time forecasting the urban water resources, real-time managing the urban water resources, real-time scheduling the urban water resources, and real-time early warning the urban water resources safety. By application of the system and method of the invention, an urban water resources system is scientifically classified and comprehensively analyzed so as to obtain the correct construction and correlations of the urban water resources system; the urban water resources are subjected to centralized management; a unified water resources monitoring-center system platform is established; and a novel water resources monitoring terminal is compatible so as to implement a unified and sustainable-development water resources managing system.
Owner:北京奥特美克科技股份有限公司
Method and apparatus for separating oil and debris from water run-off
ActiveUS20050072738A1Highly efficient debrisHighly efficient particulate filtrationFatty/oily/floating substances removal devicesSewerage structuresUrban waterStorm drain
A method and apparatus for separating oil and debris from urban water run-off, the apparatus being made up of a chamber which is mounted in a storm drain system and has an inner basin with a tilted wire wedge wire screen filter in the path of flow of the run-off, an organic absorber floats on the water as it is collected in the basin, and a discharge plate has a series of slots which are sized to regulate the flow rate of discharge of the water from the basin for removal through an outlet at the lower end of the chamber. The method and apparatus are conformable for use with existing storm drain systems along curbs or gutters as well as parking lots, runways and the like.
Owner:ESMOND STEVE E +1
Weather resistance permeable material and application thereof
ActiveCN101665340ANo pollution in the processGood weather resistanceIn situ pavingsSolid waste managementEpoxyWater cycling
The invention relates to a weather resistance permeable material, comprising aggregate and binding agent, wherein, the aggregate is one of natural quartz sand, coal ash, smelting waste residue, artificial quartz sand or the arbitrary combination thereof; the grain diameter of the aggregate is 0.07 mm-1.6 mm; the binding agent is epoxy resin, polyurethane resin and acrylic acid resin with good weather resistance or the arbitrary combination thereof; the weather resistance is effectively improved by selecting the binding agent with good weather resistance and adding light stabilizer and antioxidant; and the water permeability of materials is effectively improved by selecting hydrophilic reactive resin with good water permeability and adding hydrophilic inorganic material in the aggregate. The application of the weather resistance permeable material is as follows: the above raw materials can be mixed to manufacture permeable prefabricated pieces used for road surfacing or rain water collecting and water filtering, and can also be directly paced on the road surface to form a permeable road surface, thus promoting full utilization of rain water resources and improving urban water circulation.
Owner:RENCHSAND ECO ENVIRONMENT PROTECTION SCI & TECH CO LTD
Wind and light coupled oxygen-enriched nanometer matrix composite ecological floating bed
InactiveCN103359834AHigh efficiency in removing pollutantsImprove efficiencyTreatment with aerobic and anaerobic processesEnergy based wastewater treatmentEmergent plantFlywheel
Owner:HOHAI UNIV
GIS (Geographic Information System) platform-based urban water system construction planning method
ActiveCN103955565AResolve Conversion AccuracySolve the problem of control accuracyClimate change adaptationSpecial data processing applicationsSpatial analysisPlanning method
The invention discloses a GIS (Geographic Information System) platform-based urban water system construction planning method, which is integrated with a spatial analysis tool under the ArcGIS platform to form a complete set of analysis method suitable for water system planning. The GIS platform-based urban water system construction planning method mainly comprises the following three parts: (1) screening and analysis tool for existing water systems: according to the distribution and runoff of existing water systems, the water systems which reach certain area and accumulated runoff are screened out; (2) flood inundation analysis tool: extraction and analysis are carried out, and possible flooded areas are calculated; iteration is carried out with the screened existing water systems, and flooded areas outside the scopes of the existing water systems are calculated; (3) water system connectivity analysis tool: according to cost data, optimal route analysis is carried out on the connectivity of a plurality of pairs of areal water systems in a map layer. The integration of the three parts effectively solves the problem on how to sort existing water systems in urban planning work, construct new water areas and connect water systems, and finally, a complete set of analysis tool which is highly efficient and suitable for water system planning is formed.
Owner:TIANJIN UNIV CITY PLANNING & DESIGN INST
Method for calibrating performance curve of single water pump in urban water plant pump station
ActiveCN103062076AEnsure safetySave on-site testing effortPump controlNon-positive displacement fluid enginesEngineeringStreamflow
The invention provides a method for calibrating the performance curve of a single water pump in an urban water plant pump station. The urban water plant pump station comprises multiple pumps in parallel connection, and the method includes: (1), monitoring data collecting: obtaining historical data of operating state of the pump station through monitoring instruments mounted at an inlet and an outlet of the pump station; (2), monitoring data processing: utilizing the historical data of the operating state of the pump station measured in the step (1) to obtain total flow, total pumping head and electricity consumption of the pump station and operating state of the single water pump so as to generating processing data; (3), monitoring data analyzing: adopting the regional sensitivity analysis method to the data generated in the step (2), and calculating performance curve parameters of the single water pump in the pump station according to a given pump station performance curve equation; and (4), applying parameters: subjecting the performance curve parameters of the single water pump obtained in the step (3) to simulating application to obtain the performance curve, energy consumption evaluation and improvement scheme of the single water pump and optimized scheduling of the pump station.
Owner:北京清控人居环境研究院有限公司
Method for processing urban sewage deeply
ActiveCN1796314AChange sizeChange structureTreatment using aerobic processesWater/sewage treatment bu osmosis/dialysisFiltrationReverse osmosis
This invention is related to a process of disposing urban sewage, which comprise the steps of coagulate filtration, ozone oxidation, biological oxidation to dispose urban sewage, so that the residual undegradable organic substances, bacteria and virus in the second-class urban sewage can be removed and the water can be recycled. According to different usages of the recycled water, the process also comprises reverse osmosis or nanoscale filtration treatment to further remove the residual organic and inorganic substances in the water. The process is a combination of coagulate filtration, ozone oxidation, biological oxidation and reverse osmosis, designed to resolve such problems as urban sewage disposal and water recovery. The process can obtain high-quality recycled water with a low cost, showing high cost performance, which is important to resolving urban water depletion, raising the utilization rate of water resources, reducing environmental pollution and promoting sustainable development of the society.
Owner:北京国中科创环境科技有限责任公司
Urban water-logging analysis method and urban water-logging analysis system
InactiveCN105550803ASolve the generalization problemImprove forecast accuracyClimate change adaptationResourcesMathematical modelWater model
The invention discloses an urban water-logging analysis method and an urban water-logging analysis system in order to solve the problem in the existing water-logging analysis method that inaccurate results are caused as there is no accurate data of underground drainage facilities and a lot of variables in the model are simulated data. The method comprises the following steps: generating an urban space model containing all depressions according to urban space information; getting the water depth of each depression according to the acquired predicted total rainfall within a period of time T, the area of the depression and the underground pipeline information; judging whether the water depth is greater than a set threshold; and generating alarm information characterizing depression water-logging if the water depth is greater than the set threshold. According to the technical scheme, a rainfall model, a confluence model and an improved drainage model form a water model, the generalization problem of urban drainage system facilities in the traditional rainstorm water-logging mathematical model is solved, and the accuracy of water depth prediction is improved.
Owner:哈尔滨航天恒星数据系统科技有限公司
Urban river and lake water quantity and quality monitoring and managing system based on internet of things
InactiveCN104251730AReduce power consumptionReal-time monitoring of water volumeTesting waterMachines/enginesResource utilizationThe Internet
The invention discloses an urban river and lake water quantity and quality monitoring and managing system based on the internet of things. The urban river and lake water quantity and quality monitoring and managing system based on the internet of things comprises a management center server, a wireless communication network and water quantity and quality monitoring terminals arranged in rivers and lakes. A plurality of adjacent water quantity and quality monitoring terminals compose a ZigBee subnet; a plurality of ZigBee subnets transmit real-time water quantity and quality information to the management center server through the wireless communication network; the wireless communication network displays, analyzes and manages the water quantity and quality information of the urban rivers and lakes uniformly. By the aid of the ZigBee technology with low power consumption and low cost, water quantity and quality of urban rivers and lakes are monitored and managed, relative information of water quantity and quality of the urban rivers and lakes can be monitored in real time, data can be sent, analyzed and calculated in time, integral monitoring and information integration to water quantity and quality of urban rivers and lakes are carried out by the waterworks department through the urban river and lake water quantity and quality monitoring and managing system, and accordingly, the urban river and lake water quantity and quality monitoring and managing system has great significance in guaranteeing safety of urban water resource utilization.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Urban rainwater purification method and hydraulic jump type filter used therein
ActiveCN107010780AEasy to collectEasy to handleTreatment using aerobic processesGeneral water supply conservationPurification methodsWater storage tank
The invention mainly discloses an urban rainwater purification method and a hydraulic jump type filter used therein. According to the technical scheme of the invention, the urban rainwater purification method comprises the following steps: collecting rainwater, detecting the rainwater, carrying out sedimentation treatment, carrying out pH value treatment, carrying out aeration treatment, carrying out biological purification, carrying out fine filtration, and storing. The used hydraulic pump type filter comprises a first filter cartridge and a second filter cartridge, a detection cavity is arranged at a water outlet, only after water body is detected to be in line with urban water consumption requirements by virtue of a detection head, the water body is conveyed into a water storage tank, otherwise the water body is conveyed into the first filter cartridge and the second filter cartridge to be filtered again. The urban rainwater purification method disclosed by the invention has the advantages that the rainwater is collected and purified, collection, permeation, purification and utilization of the rainwater in an urban range are realized to the utmost extent under the premise of guaranteeing waterlogging prevention and safety of a city, urban waterlogging stress can be effectively alleviated and reduced, purification efficiency is high, water quality of the treated rainwater is effectively improved, utilization of a rainwater resource is promoted, and sponge urban construction requirements are met.
Owner:ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER
Urban water disaster risk prediction method based on RBF (radial basis function) neural network-cloud model
ActiveCN103279671ARealize high-precision simulation predictionImprove accuracyBiological neural network modelsSpecial data processing applicationsRisk levelUrban water
The invention discloses an urban water disaster risk prediction method based on an RBF (radial basis function) neural network-cloud model. The method includes (1) determining evaluation factors, levels and the indicator range under corresponding levels; (2) determining an expectation Ex and an entropy En of the cloud model; (3) determining the weight of each evaluation factor according to measured values of the evaluation factors and the indicator range of each level; (4) training the RBF neural network, finishing model establishment for the RBF neural network, inputting the measured values of the evaluation factors of the cloud model to the trained RBF neural network to perform simulated prediction, and obtaining a prediction value of each evaluation factor; and (5) substituting the prediction value of each evaluation factor to the integrated cloud model to allow the integrated cloud model to calculate corresponding certainty degree of the prediction value of each evaluation factor belonging to each risk level and multiply the corresponding weight to obtain integrated risk level distribution. The urban water disaster risk prediction method is visualized and reliable and strong in operability, and accuracy of prediction is improved.
Owner:NANJING UNIV
Full road condition ponding water level monitoring alarm and drainage device
ActiveCN105651359AMonitor waterloggingReal-time monitoring of water accumulationMachines/enginesLubrication indication devicesDisplay deviceEngineering
The invention provides a full road condition ponding water level monitoring alarm and drainage device and belongs to the field of ponding monitoring alarm and drainage devices for traffics. The device is characterized by comprising a road ponding monitoring device, an overpass tunnel ponding monitoring device, a water level monitoring display device, a water level monitoring alarm device and an automatic drainage device. The road ponding monitoring device and the overpass tunnel ponding monitoring device are connected with the water level monitoring display device. The device can monitor the ponding water level of various road conditions in real time, and transmit data to a monitoring center in real time, and the data can also be directly displayed to serve as action reference for municipal administration and passers-by. In addition, the device can drain water intelligently and actively according to the monitored water level data, and urban water logging is avoided.
Owner:SHANDONG XINGZHI INTELLIGENT TRANSPORTATION TECH CO LTD
Sludge coal water slurry and process for making same
The invention discloses a sludge coal water slurry and process for making same which comprises, charging urban water treatment sludge, end product coal water slurry and dispersing agent into tubular grinding machine for grinding and mixing, filtering with a filter, loading sludge slurries with grain size smaller than 0.5mm to special-purpose slurry boiler for combustion.
Owner:青岛海众元亨热能有限公司
Urban road water-logging early warning and automatic treatment system based on technology of internet of things
InactiveCN104612236AAvoid threats to life and propertySave human effortFatty/oily/floating substances removal devicesSewerage structuresWater dischargeEngineering
The embodiment of the invention provides an urban road water-logging early warning and automatic treatment system based on the technology of internet of things. The urban road water-logging early warning and automatic treatment system comprises a water discharging device, a water level monitoring device, a monitoring center and a power source, wherein the water discharging device is used for achieving real-time collection of the water level of road water-logging and uploading the water level and position information to the monitoring center, when the water level reaches a preset value, the water level monitoring device controls the water discharging device to discharge accumulated water into a sewer, and the monitoring center is used for receiving the water level and the position information which are uploaded by the water level monitoring device and sending the water level and the position information to a client side. By the adoption of the urban road water-logging early warning and automatic treatment system, the water level can be monitored in real time, water can be discharged through the water discharging device, and therefore the problem that too much water is accumulated on a road and cannot be discharged is avoided; the data which are collected in real time are uploaded to the monitoring center and sent to the client side through the monitoring center, and therefore the urban road water-logging early warning and automatic treatment system is convenient and rapid to use and saves labor, a user can be informed of the road water-logging condition in time, the user can avoid the dangerous road, and the personal loss and the property loss are reduced.
Owner:CHONGQING DUOBANG TECH DEV
Advanced treatment method for urban water of electric power plant
InactiveCN101318747AScale removal and water softeningMultistage water/sewage treatmentIron sulfateWater use
The invention relates to a method for treating municipal intermediate water, in particular to an advanced treatment method for treating the municipal intermediate water which is used as cooling water for a power plant. The method comprises the following specific steps that: water in a municipal sewage treatment plant is introduced into a pool, respectively added with lime hydrate, polymeric ferric sulfate as a coagulant and polyacrylamide as a coagulant aid and clarified; a clarifying solution is added with an disinfectant for disinfection, added with sulphuric acid for adjusting the PH value of the clarifying solution to between 8 and 8.5 and filtered; and intermediate water after filtration is added with a composite scale corrosion inhibitor, evenly mixed and added to circulating water in the power plant. The advanced treatment method solves the relevant technological difficult problems of advanced treatment, disinfection, scale inhibition, anticorrosion, ammonia nitrogen treatment, etc. of the intermediate water recycled by the power plant and provides technological support for the safe and economic use of the intermediate water in the power plant; and the intermediate water in the power plant is used as circulating water and replenishing water for recycling and has remarkable economic, social and environmental benefits.
Owner:SHANDONG ELECTRIC POWER RES INST
Underground pipeline repairing system and method
The invention relates to an underground pipeline repairing system and method. The underground pipeline repairing system is composed of a pipeline repairing supporting framework body, a repairer driving device, a repair device, an operation control device, a pipeline positioning camera, a main supporting frame, a positioning instrument, a controller and a battery pack. The main supporting frame is a cylindrical framework overall, the pipeline positioning camera is arranged at the front end of the main supporting frame, the positioning instrument, the battery pack and the controller are arranged in the middle of the main supporting frame, and the controller is connected with a driver, the pipeline positioning camera and the positioning instrument through circuits. The repair device is installed on the main supporting frame. A pipeline repair air bag is arranged in a positioning barrel and expands when inflated for a pipeline to be repaired, the positioning barrel and a gel adsorption layer fixing belt expands as well until the positioning barrel and the gel adsorption layer are attached to the pipeline to be repaired. The underground pipeline repairing system and method are scientific in design, reasonable in structure, convenient to construct and low in manufacturing cost. A repairer does not need to enter the pipeline and carries out remote control operation on the ground. The repairing portion of the pipeline to be repaired is accurately observed and positioned. The underground pipeline repairing system and method can be applied and popularized in the urban water conveying pipeline repairing engineering, and has broad market prospects.
Owner:TIANJIN WATER RESOURCES RES INST
Apparatus for separating oil and debris from water run-off
ActiveUS7258785B2Efficient removalEasy to cleanFatty/oily/floating substances removal devicesSewerage structuresUrban waterStorm drain
Owner:ESMOND STEVE E +1
Rainwater collecting and recycling system for urban green land and plaza
ActiveCN104480994AImplement automatic poolingAchieve recyclingWater/sewage treatment by irradiationSewerage structuresWater resourcesEngineering
The invention discloses a rainwater collecting and recycling system for an urban green land and a plaza; the rainwater collecting and recycling system comprises the green land, roads around the green land and the plaza; the green land is of a sunken structure which is lower than the roads and the plaza; the plaza is of a dome structure which is slightly lower at four sides; and the roads are of arched structures which are higher at the middle and slightly lower at two sides; rainwater on the roads and the plaza enters a water collecting well which is connected with a covered filtering channel; the water drain end of the covered filtering channel is connected with an underground impounding reservoir; a concrete cover plate layer is arranged at the upper part of the impounding reservoir; the green land is arranged at the upper part of the concrete cover plate layer; a water pump is arranged in the underground impounding reservoir; and the water outlet of the water pump is connected with a green land irrigation spray head. The rainwater collecting and recycling system for the urban green land and the plaza relieves the pressures on sewage disposal, municipal water supplying and shortage of urban water sources, realizes rainwater recovery and gives full play to the ideas of energy conservation, emission reduction and sustainable development.
Owner:广东银湖湾建设科技有限公司
Method for controlling feeding amount of chemical phosphorus removal reagents of water reclamation plants based on fuzzy control
ActiveCN103570190AGood control effectAdaptableWater contaminantsMultistage water/sewage treatmentActivated sludgeFeedback control
The invention relates to a novel practical feedforward and feedback control method for the phosphorus removal reagent feeding of urban water reclamation plants. According to the provided control method, a feedforward control link is built on the basis of a phosphorus removal reagent feeding model, and an outlet phosphorus content, an inlet water flow and an inlet phosphorus content are taken as input / output control quantity compensation values of a fuzzy system. Due to the introduction of the compensation values, the system has a certain self-adaption ability, which facilitates the elimination of interferences of factors such as biological phosphorus removal and the like of subsequent phosphorus removal processes. Because other influence factors are considered in the fuzzy system used in the method, the system can implement a more precise reagent feeding process in comparison with general feedforward and feedback control methods, thereby reducing the operating cost of the system; the absorption of microorganisms to organic matter, phosphorus and nitrogen is further promoted, the consumption of required chemical phosphorus removal reagents is lowered, and the biological colony structure in a biological tank is optimized to a certain extent; and the method not only can reduce the economic burden of sewage treatment plants, but also brings a positive influence to an activated sludge process.
Owner:BEIJING UNIV OF CHEM TECH
Water-purifying apparatus
InactiveCN1884102AAdjustable microcirculationImprove immunityWater/sewage treatment by irradiationWater/sewage treatment bu osmosis/dialysisActivated carbonUrban water supply
The invention discloses a water purifying device, which comprises the following parts: reserving tank from inlet, secondary pressurized pump, secondary water-supplying pressure tank, secondary water-supplying tank, purifier and ore purifying tank behind purifier, wherein the filter layer, activated carbon layer, medical stone layer, coral sand and pearl sand, quartz sand layer, activated carbon layer with loop magnesium, mineral ball layer and ceramic sand layer are overlapped on the porous suspending board of ore purifying tank bottom from upwards to downwards; the ultraviolet disinfecting lamp protected by sealed glass lid is set on three-elevation bottom of water reserving tank and secondary water-supplying tank; the lid and inlet pipe with water level self-valve are set on the top of secondary water-supplying tank and ore purifying tank with outlet pipe and cleaning drainage pipe on the bottom. The invention can be urban water-supplying equipment of secondary pressurization, which is fit for centralized urban-rural or self-supplying terminals to purify and sterilize.
Owner:谢英俊
Method for rapidly identifying and determining black and odor of urban water body based on multi-source spectral characteristics
PendingCN109142296AOvercoming single monitoring indicatorsOvercoming the lack of organic indicatorsColor/spectral properties measurementsFluorescence/phosphorescenceTurbidityRapid identification
The invention discloses a method for rapidly identifying and determining the black and odor of an urban water body based on multi-source spectral characteristics. A three-dimensional fluorescence spectrum is used for analyzing concentrations of humic acid, albumin and oil black and odor precursors in the water body, and a UV-visible absorption spectrum is utilized for analyzing and obtaining waterquality parameters of turbidity, chroma and nitrate black and odor and other related parameters, and water quality comprehensive indexes of COD, BOD and TOC are obtained by using fluorescence spectrum and absorption spectrum fusion inversion; combining dissolved oxygen and water temperature parameters, a water body black and odor grade measurement algorithm model is established based on data driving through testing and training of different types of water bodies in a plurality of cities, and the rapid identification and determination of the black odor grade of the water body is achieved. Themethod solves the problems of 'single monitoring index, organic index missing and ammonia nitrogen sampling and off-line measuring' in a water body black and odor monitoring method specified in Guideto Regulation of Urban Black and Odor Water Bodies, has the advantages of no reagent, no need of sample pretreatment, rapid measurement and the like, and is a rapid and effective method for measuringthe black and odor of water bodies.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Urban underlying surface rainfall runoff infiltration simulation experiment system
InactiveCN105911231AThe test results are reasonable and accurateSignificant societyMaterial analysisUrban waterEngineering
The invention discloses an urban underlying surface rainfall runoff infiltration simulation experiment system and relates to the technical field of rainfall flood management. An artificial rainfall system is arranged above an infiltration bed; a rainwater measuring system and a water quality monitoring system arranged on the infiltration bed are connected with a computer software simulating system; the infiltration bed is formed by an infiltration bed device, an independent experiment trough, a concrete foundation and an I-beam truss structure; the rainwater measuring system is formed by a double-ring permeameter, a soil moisture content testing instrument and an electromagnetic flowmeter; the system is matched with corresponding computer simulation software, can perform mutual verification with an experiment simulation system, can evaluate the risk level of rainstorm in a small river basin, which causes urban water logging, and can realize emission reduction and dispersed storage and delay of urban rainfall runoff. The system can provide early-stage experiment support for the development of cities, and is steady and reliable, strong in practicability and easy for promotion and application.
Owner:CHINA WATER RESOURCES PEARL RIVER PLANNING SURVERYING & DESIGNING
Automated wireless management control system for urban water affairs
InactiveCN101881976AReduce disputesImprove work efficiencyTransmission systemsFlow control using electric meansTraffic capacityWater utility
The invention relates to a wireless meter reading system for urban water affairs, which acquires the flow information of tap water used by users through a Zigbee network and a GPRS (General Packet Radio Service) wireless network and completes the operations, i.e. control, display, storage, statistics, printing, and the like, on the flow information of the tap water on a server of a control center. The invention can save the manpower and reduce the disputes between a water supply department and clients because the control center can monitor the water quantity of all pipelines of a water supply company, thereby enhancing the work efficiency of a management department.
Owner:北京首科软件及系统集成有限责任公司
Method for determining pre-selected site of rainwater storage pond
The invention discloses a method for determining a pre-selected site of a rainwater storage pond and belongs to the technical field of municipal drainage. The method for determining the pre-selected site of the rainwater storage pond mainly comprises the steps that based on an SWMM model and the urban water logging prevention and treatment standard, the comprehensive evaluation indexes, namely the hazard indexes of accumulated water, of all nodes are obtained through conversion and calculation with the rainwater system nodes as evaluation objects, the position of the pre-selected rainwater storage pond as a target, the depth and the range and the time of the accumulated water around each node as evaluation factors and with the importance and the sensibility of the nodes and weighting considered, the ranking is conducted according to the hazard indexes of the accumulated water, a final result is obtained, and the node with the larger hazard index of the accumulated water is determined to be the pre-selected site of the rainwater storage pond. According to the method for determining the pre-selected site of the rainwater storage pond, more influence factors are considered, the obtained pre-selected site technical scheme is more reasonable, a quite good initial condition (scheme) is provided for later-stage layout optimization of the storage pond, and the working efficiency in the analysis and comparison process, namely the scheme optimization process, is improved.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Region sectioning rainwater treatment system based on separate-system pipe network
ActiveCN105625545AAvoid delayRelieve stressFatty/oily/floating substances removal devicesSewerage structuresStormwater pollutionWater treatment system
The invention relates to the field of urban rainwater treatment systems, in particular to a region sectioning rainwater treatment system based on a separate-system pipe network.The region sectioning rainwater treatment system comprises multiple sections divided according to area and a sewage manifold communicated with a sewage treatment plant, a sewage branched pipe, a rainwater branched pipe and at least one rainwater treatment facility are arranged in each section, each rainwater treatment facility is communicated with a discharging end of the corresponding rainwater branched pipe, a discharging end of each rainwater treatment facility is communicated with a natural water body, and a discharging end of each sewage branched pipe is communicated with the sewage manifold.The region sectioning rainwater treatment system is simple in structure, an urban water treatment system is divided into independent sections, and each rainwater treatment facility which is independent is arranged in the corresponding section, so that the delay problem in the process of long-distance delivery of early-stage rainwater in the prior art is solved, treatment pressure of the sewage treatment plant is reduced, the early-stage rainwater is avoided causing pollution to natural water, discharging treatment of rainwater is more reasonable and more efficient, and the region sectioning rainwater treatment system has high popularization value.
Owner:WUHAN SHENGYU DRAINING SYST
Urban water-body bank ecological restoring apparatus
InactiveCN101074558ARestore diversityRepair ecosystemWatering devicesCultivating equipmentsMarshSlag
A zoology recovering device for the city water bank belongs to the water zoology engineering field. The invention is to set the marsh zoology decontamination water purification system, the water-air-wind exchanging system, the land-water biological habit system and the zoology bank protecting system in the city water bank. The concrete flooding bank is set by 8-25degree with the water flow direction; The bank head is connected with the concrete through the clapboard; the bank trail is connected with the slag biological water leaking wall; the field formed by the bank, concrete flooding bank and the concrete clapboard is divided into the sunken plant field and the floating plant field by the concrete clapboard. The biological reef hill is set on the center of the sunken plant. The invention can not only recover and clear the water zoology but prevent the storm to erode the bank compared to the chemical, physical and zoological method at present.
Owner:HEBEI AGRICULTURAL UNIV.
Urban waters mud local dewatered process
InactiveCN1792900ASolve the way outAvoid Migratory Secondary PollutionSludge treatment by de-watering/drying/thickeningTerrainHigh intensity
A method for in-situ dewatering of the silt in water system of urban area includes such steps as preparing the tubular bag whose size and shape are determined by the local terrain, digging the silt from the bottom of lake or river and conveying it in said tubular bags, and laying aside for filtering the water under the action of the pressure from bag wall and the dead weight while solidifying the solid for 3-5 weeks.
Owner:HOHAI UNIV
Apparatus for establishing urban water-through surface water collection effect test
The invention belongs to the technical field of research devices for water and soil conservation, and discloses a device for establishing a water-collecting effect test for urban water permeable surfaces. The device is characterized by mainly comprising a radial flow measuring device, a rainfall infiltration test surface and a rainfall simulator. The radial flow measuring device comprises a collecting groove, a collecting tank, a synchronous micro diving pump, a radial flow tank, an adjustable water control valve and a stop watch part, and adopts a transfer type measuring method to measure radial flow. The rainfall infiltration test surface uses a combined steel plate pile as a side wall to separate out an observation surface; the rainfall simulator comprises a rainfall spray head, an adjustable flat base and a water supply system; and a base bracket can keep horizontal through adjusting three lead screws respectively, so that the device is suitable for various sloping surfaces. The water supply system mainly comprises a water control valve, a water supply tank with primary and secondary structures, a first diving pump and a second diving pump. The secondary tank is positioned in the primary tank. The device has the effects and advantages of little influence on surrounding environment, accuracy and flexibility, little water usage, and low cost.
Owner:DALIAN UNIV OF TECH
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