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54 results about "Aerobic treatment system" patented technology

An aerobic treatment system or ATS, often called (incorrectly) an aerobic septic system, is a small scale sewage treatment system similar to a septic tank system, but which uses an aerobic process for digestion rather than just the anaerobic process used in septic systems. These systems are commonly found in rural areas where public sewers are not available, and may be used for a single residence or for a small group of homes.

Method for processing high-concentration wastewater containing alkaline mud

The invention discloses a method for processing wastewater containing alkaline mud with high COD concentration, high toxicity, low biodegradability and high chroma. In the invention, a micro-electrolysis pretreatment, and flocculating and decoloring process are adopted to reduce the COD concentration and chroma and improve the biodegradability, thus providing precondition for the subsequent acidified hydrolysis and aerobic treatment system to further eliminate alkaline mud contamination load; and the yielding water is deposited by a deposition pool and discharged after disinfection. In the invention, the COD concentration (80,000-300,000mg / L) and the chroma (12,500-50,000 times) of inflowing water are improved to maximum degree, stability for the running of system is considered sufficiently, a large amount of diluted water required in the running process is saved, the yielding water can be directly exhausted to urban sewage pipelines, received by waterbody or combined in other treatment systems for treatment, and can comply with the recycling standard. In the whole treatment process, the secondary pollution is not generated, the total emission amount of COD is reduced, the whole system runs conveniently and quickly, and the investment and running expense is far lower than that of the traditional film treatment system.
Owner:TONGJI UNIV +1

Fine chemical wastewater treatment and reuse method

The invention discloses a chemical treatment method and specifically relates to a fine chemical wastewater treatment and reuse method based on a membrane bioreactor (MBR)-reverse osmosis (RO) combination technology. The method disclosed by the invention comprises the following steps: performing oil separation, air floatation and coagulative precipitation on wastewater drained from a production workshop, then performing decomposition through an extracellular enzyme of anaerobic microorganisms in a hydrolysis treatment system, further entering an aerobic treatment system with aerobic microorganisms, further enabling the wastewater from the aerobic treatment system to enter an MBR system to perform further aerobic treatment, simultaneously performing mud-water separation, directly enabling water from the MBR system to enter an RO system, reusing the water produced by the RO system in production, and draining concentrated water into a pipeline network in a park. The method disclosed by the invention has the advantages of combining MBR with RO, improving the biochemical treatment effect of the system, further improving the recovery rate of the RO system, increasing the yield of pure water and reducing the discharge amount of the wastewater. The method has the advantages of short process flow of the system, high degree of automation, simplicity and convenience in operation and stability in operation.
Owner:HANGZHOU TIAN CHUANG ENVIRONMENTAL TECH

Method for recycling textile dyeing and finishing wastewater

The invention discloses a method for recycling textile dyeing and finishing wastewater, which comprises the following steps of: regulating the pH of the textile dyeing and finishing wastewater in a regulating tank to be 7.0 by using acidic solution, performing coagulative precipitation in a coagulative precipitation tank by using an inorganic flocculating agent, and performing anaerobic treatmentin a high-efficiency anaerobic reactor; performing anaerobic / anoxic and aerobic circulation treatment in a multi-stage circulation aerobic treatment system, wherein the multi-stage circulation aerobic treatment system consists of anaerobic / anoxic reaction tanks A and aerobic reaction tanks O in an A-O-A-O-A-O-A staggered series connection mode; performing coagulative precipitation in a high-efficiency air floatation coagulative precipitation tank; and performing ozone oxidation and disinfection in an ozone oxidation tank to obtain recycled water. Compared with the conventional physical-chemical method, the technology has the advantages that: operating cost is obviously reduced, and over 30 percent of economic benefit is achieved. The quality of the treated water is high, and 70 percent ofrecycling rate can be achieved.
Owner:JIANGSU SHANGDA WATER AFFAIR

Cultivation wastewater treatment system and method of large-scale pig farm

The invention discloses a cultivation wastewater treatment system and a method of a large-scale pig farm, which mainly solves the problems of large floor area, low treatment efficiency and a low automation control degree in the prior art. The cultivation wastewater treatment system of the large-scale pig farm comprises a pretreatment system, an anaerobic treatment system, an aerobic treatment system and a deep treatment system that are sequentially connected, wherein the deep treatment system comprises an MBR (membrane bioreactor) reaction tank, an electrooxidation decoloration device and a clean water tank that are sequentially connected. The cultivation wastewater treatment method of the large-scale pig farm comprises the following steps of allowing wastewater of the pig farm to enter the pretreatment system, the anaerobic treatment system, the aerobic treatment system and then the deep treatment system, discharging treated sewage reaching standards, and recycling feces, methane and sludge generated in a treatment process.
Owner:XIAMEN SHIDIFU ENVIRONMENTAL PROTECTION TECH CO LTD

Excess sludge wall-breaking and cell-dissolving method and device

InactiveCN102092909AIncrease the daily processing scaleCavitation effectSludge treatmentAerobic treatment systemHigh energy
The invention relates to an excess sludge wall-breaking and cell-dissolving method and device. Ultrasonic wave and various chemical agents are used commonly for wall breaking and cell dissolving and the method is as follows: sodium hydroxide and Tween 80 are added in excess sludge to be treated to perform ultrasonic treatment; the concentration of sodium hydroxide is 0.80-1.20kg.m<-3>, the concentration of Tween 80 is 1.0-1.5 kg.m<-3>, the ultrasonic effective treatment time is 3.0s-30s and the frequency of sound wave is 20kHz-28kHz; a tank ultrasonic cleaning machine is adopted, and the ultrasonic device is arranged in an inclined manner; and excess sludge is pumped by a sludge pump from the upper end of the tank ultrasonic cleaning machine, excess sludge enters through a feed hopper, flows through the ultrasonic device under the action of the gravity, passes through a plate mesh fluid distributor, flows out of a lower discharge hole naturally and enters a subsequent sludge digestion system or sludge aerobic treatment system. By adopting the thin-layer and short-time ultrasonic treatment with high energy density, the wall-breaking and cell-dissolving rate and efficiency of sludge can be increased and the equipment cost can be saved; and the effective retention time of excess sludge in the ultrasonic sound field is shorter, thus the daily treatment scale of the ultrasonic device can be increased.
Owner:TIANJIN UNIV

High-concentration pharmaceutical wastewater treatment equipment and technology with intensified treatment of functional bacteria

The invention discloses high-concentration pharmaceutical wastewater treatment equipment and a technology with intensified treatment of functional bacteria, and belongs to the technical field of wastewater treatment. The treatment equipment comprises a physicochemical treatment system, an anaerobic treatment system and an aerobic treatment system. The treatment technology includes the following steps of physiochemical treatment, anaerobic treatment, high-load aerobic treatment, first-section A / O treatment and second-section A / O treatment. A physiochemical method and a biochemical method are used in combination, and due to the fact that the combined process of high-load aerobic treatment plug two-section A / O treatment combined technology is selected, the removable efficiency of pollutants is improved, and it is ensured that effluent quality reaches the discharging standard. Through the combined technology of the physiochemical method and the biochemical method, it can be ensured that the effluent quality of high-concentration integrated pharmaceutical wastewater reaches the standard.
Owner:湖州至美生物科技有限公司

Domestic sewage treatment process

The invention discloses a domestic sewage treatment process which saves water, is good in treatment effect and meets the discharge standard. The treatment process includes the following steps that 1,pretreatment is conducted, wherein domestic sewage is intercepted by a structure with grids and automatically flows into an adjustment pool; 2, biochemical treatment is conducted, wherein sewage adjusted by the adjustment pool is sequentially sent to an anaerobic pool and an aerobic pool through a lift pump for biochemical treatment; 3, precipitation treatment is conducted, wherein sewage treatedby the aerobic pool enters a secondary sedimentation pool for precipitation treatment; 4, disinfection treatment, wherein the sedimentation pool discharge water to a disinfection pool for disinfection, and various indexes of sewage obtained after disinfection meet the standard. According to the domestic sewage treatment process, the arrangement of the adjustment pool can balance the water amount and the water quality, and continuous operation of follow-up treatment units is ensured. Through the combination of the characteristics of domestic sewage, anaerobic treatment and aerobic treatment arecombined for biochemical treatment, a large part of organic matter in sewage can be treated, and the purification effect is good.
Owner:北京路鹏达环境工程有限公司

Kitchen waste recycling aerobic treatment system device

The invention discloses a kitchen waste recycling aerobic treatment system device, and particularly relates to the field of kitchen waste recycling. The kitchen waste recycling aerobic treatment system device comprises a waste treatment site and a treatment system device, the treatment system device is provided with a kitchen waste transport vehicle and a storage bin, and one side of the storage bin is provided with a manual sorting platform; and a first spiral conveyor is arranged between the storage bin and the manual sorting platform. Through transmission of a spiral reducing dehydration extruder, kitchen waste is subjected to crushing, spirally-reduced extrusion and dehydration, discharged oily water enters a full-automatic oil separator to be subjected to oil-water separation, solid residues are conveyed to a biochemical treatment machine through a second spiral conveying device to be subjected to high-temperature aerobic fermentation treatment, and before treatment, the salinity,grease and pH value of the kitchen waste do not need to be adjusted. The harmless requirement of kitchen waste treatment can be met, a treated degradation product can be directly changed into nutrient soil or deeply processed into organic fertilizer, and waste oil can be separated from the discharged wastewater or reprocessed into biodiesel.
Owner:OULANG ENVIRONMENTAL PROTECTION TECH CO LTD

System and method for treating and recycling methanol aromatization wastewater

The invention provides a system and a method for treating and recycling methanol aromatization wastewater and belongs to a wastewater treatment method of a chemical process. After the methanol aromatization wastewater is subjected to phase separation by use of a gas-liquid-liquid three-phase separator, the wastewater is orderly treated by a particle removing device, a wastewater gas stripping device, a gravity oil removing device and an air floatation device so that petroleum materials in the wastewater can be removed, next, the wastewater is homogenized and then treated by an anaerobic treatment system and an aerobic treatment system so that organic matters in the wastewater can be further removed, and then the wastewater is flocculently precipitated and filtered so that the wastewater can be up to the reuse standard. The method is capable of effectively recycling most wastewater and reducing the usage amount of fresh water; compared with the conventional process, the inventory is reduced by more than 50% in the whole wastewater treatment process, and the wastewater treatment cost is low.
Owner:HUADIAN COAL IND GRP +1

Device and process for treating printing and dyeing wastewater by combining microbial electrolysis cell and anaerobic/aerobiotic technology

The invention discloses a device and a process for treating printing and dyeing wastewater by combining a microbial electrolysis cell and anaerobic / aerobiotic technology. The device for processing printing and dyeing wastewater comprises an anode chamber, a cathode chamber, a sedimentation tank, an anode chamber water inlet, an anode chamber sludge discharge hole, a mud barrier plate, an anode chamber water outlet, an anode chamber exhaust hole, an electrode socket, a gas collection device, a cathode chamber water inlet, a cathode chamber mud discharge hole, a cathode chamber water outlet, an air pump, an aeration head, an anode, an external power supply, a cathode, a sedimentation tank mud discharge hole, a sedimentation tank water inlet, a sedimentation tank water outlet, a water pump, a sludge pump and a water pump. According to the device and process for treating printing and dyeing wastewater, the treatment effect of an anaerobic / aerobiotic treatment system is intensified by an impressed voltage, and organic matters are effectively removed; meanwhile, pH is regulated by utilizing H<+1> produced in the microbial electrolysis cell, so that the pH regulation expense is reduced, the stable operation of the anaerobic / aerobiotic system is guaranteed, and the treatment degree of the printing and dyeing wastewater is improved.
Owner:ZHEJIANG UNIV

Device for treating production wastewater of jujube processing industry and treatment process thereof

The invention discloses a device for treating production wastewater of a jujube processing industry and a treatment process thereof. The device comprises a hydrolysis adjusting tank (2) and an upflow anaerobic sludge blanket (UASB) reactor (8) which is connected with the hydrolysis adjusting tank (2) through sewage conduits, the UASB reactor (8) is connected with an intermediate tank (12) through the sewage conduits, the intermediate tank (12) is connected with a sequencing batch reactor (SBR) (15) through the sewage conduits, and the SBR (15) is connected with a clean water tank (18) through the sewage conduits. According to the device for treating the production wastewater of the jujube processing industry and the treatment process thereof, a system which is economical, practical, and specifically used for production wastewater treatment of the jujube processing industry is provided, an anaerobic treatment system and an aerobic treatment system are combined, pollutions of sewage water to the environment are reduced, a design for the sewage treatment system utilizes a one-time lifting, an automatic flow is achieved among various follow-up treatment units, settings of a dynamical power system are small, and operating costs of the sewage treatment system are reduced.
Owner:河南省正大环境科技咨询工程有限公司

Sewage treatment method and sewage treatment system

The invention relates to a sewage treatment method and a sewage treatment system and in particular relates to a domestic sewage treatment method and a sewage treatment system. Compared with an existing sewage treatment process, the sewage treatment process disclosed by the invention cancels components such as fine grids, sand settling ponds or secondary sedimentation tanks and procedures such as sludge thickening and sludge disposal in an existing sewage treatment process, simplifies the treatment procedures, is beneficial for control and management, is low in operation cost and is applicable to sewage treatment plants in villages and towns, and moreover the quality of treated effluent can meet the first class A standard or standard of recyclable water according to demands. The sewage treatment system adopts modularization design, industrialized production and modularization mounting, is simple in civil construction, short in engineering construction period, simple to operate and control, small in occupied area and small in number of expected operation personnel; various treatment function sections can be flexibly combined according to practical demands according to different qualities and amounts of sewage.
Owner:CAPITAL GREINWORTH ENVIRONMENTAL CORP

Waste gas deodorization device

The invention belongs to the technical field of waste gas treatment, and in particular relates to a waste gas deodorization device. Odorous gas collected by an odorous gas collection system passes through a waste gas draught fan to reach a gas inlet air pipe located between a first biological filtering device and a liquid collection groove, and then enters a tower body; the odorous gas is raised upward and passes through the first biological filtering device to reach a chamber formed between the first biological filtering device and a second biological filtering device; the odorous gas is deodorized through activated sludge water mist sprayed out by a first activated sludge spraying device; then the residual odorous gas is raised upward and enters a chamber formed between a spraying pump and the second biological filtering device; the spraying pump, a recycled water spraying device and a second activated sludge spraying device are used for spraying out water mist, high-alkalinity secondary sedimentation recycled water mist and activated sludge water mist respectively to carry out deodorization on the odorous gas; the odorous gas is treated to obtain purified gas which is dischargedthrough an exhausting opening. A solution obtained at the bottom of the tower body reaches an overflowing groove through a communication hole, and the solution in the overflowing groove passes through an overflowing pipe to reach an aerobic treatment system and then is treated.
Owner:东莞顺裕纸业有限公司

Purification tank using three-dimensional electrolysis and AAO process to treat decentralized sewage

The invention relates to a purification tank using a three-dimensional electrolysis and AAO process to treat decentralized sewage. The purification tank comprises a tank body, a water inlet pipe, a water outlet pipe and four partitions and is characterized in that the four partitions separates the inner cavity of the tank body into five cells; a filter tank, a settling tank and a stirring cavity are arranged in the first cell, and the sewage is subjected to anaerobic and anoxic treatment in the first cell and the second cell; the sewage is subjected to aerobic treatment in the third cell and the fourth cell; a three-dimensional electrolysis plate for further removing the phosphorus of the sewage is arranged in the fifth cell. The purification tank has the advantages that anaerobic-anoxic-aerobic treatment and electrolysis phosphorus removing of the sewage are achieved, the nitrogen and phosphorus removal of the decentralized sewage in the rural area is benefited, the stirring and reflux in the sewage treatment process do not consume energy, the phosphorus content in the sewage is further lowered by the final three-dimensional electrolytic treatment, and an effective treatment process and equipment is provided for the treatment of the decentralized sewage in the rural area.
Owner:BEIJING UNIV OF TECH

Organic pigment wastewater treatment technology

The invention provides an organic pigment wastewater treatment technology. The technology comprises the following steps that organic pigment wastewater is collected to a grit chamber through a workshop, and liquid supernatant flows into a first coagulating-reaction system; a coagulant and a flocculant are added into the wastewater in the first coagulating-reaction system, and liquid supernatant flows into an aerobic treatment system; liquid supernatant generated at the bottom of the aerobic treatment system flows into a second coagulating-reaction system; a coagulant and a flocculant are addedinto wastewater in the second coagulating-reaction system, and liquid supernatant flows into a Fenton reaction pond; a Fenton reagent is added into a Fenton reaction system, after the reaction is finished, a flocculant is added into the wastewater, and liquid supernatant is discharged after reaching the standard. According to the organic pigment wastewater treatment technology, the technical routes of a physicochemical pretreatment technology, a biological-method main treatment technology and a Fenton advanced oxidation deep treatment technology are adopted, most COD and chroma in the wastewater can be removed, the quality of the discharged water is stable, the temperature application range is wide, the treatment cost is low, and it is ensured that the quality of the treated discharged water reaches the primary standard of the integrated wastewater discharge standard.
Owner:上海川臣环保技术有限公司

Pressure-Actuated Liquid Disinfectant Dispenser and Method for an Aerobic Treatment System

A pressure-actuated disinfectant dispenser and method for treating wastewater in an aerobic treatment system. The dispenser includes a reservoir for holding a disinfectant supply and a dosage container for holding a dosage of disinfectant. The container is positioned within the reservoir and has a flow-regulated path for fluid communication from the reservoir into the container. The invention also includes actuation means for increasing the pressure within the dosage container to force disinfectant therefrom, and a discharge assembly for discharging fluid from the dosage container into said storage tank.
Owner:D I R MFG & SUPPLIES

Rural sewage treatment method

The invention discloses a rural sewage treatment method. The method comprises the steps of entrapment, sand setting, regulation, denitrification, aerobic treatment, precipitation, filtration and inspection. Through combination of a biological rotating disc and a constructed wetland, activated sludge treatment is conducted on wastewater through an aerobiotic tank of the biological rotating disc so that BOD and COD can be removed, water is further purified under the combined action of filtration of a filter layer of the constructed wetland, plant purification and soil adsorption, and up-to-standard discharge of water is guaranteed. According to the method, equipment construction cost is low and can be accepted by peasant households easily, treatment of domestic sewage of rural areas characterized in residence dispersal is realized, and environment pollution caused by domestic sewage is avoided; treatment effect is good, energy consumption is low, maintenance and using are convenient, and long-term use is possible.
Owner:SICHUAN GERUISI ENVIRONMENT TECH CO LTD

Method for recycling textile dyeing and finishing wastewater

The invention discloses a method for recycling textile dyeing and finishing wastewater, which comprises the following steps of: regulating the pH of the textile dyeing and finishing wastewater in a regulating tank to be 7.0 by using acidic solution, performing coagulative precipitation in a coagulative precipitation tank by using an inorganic flocculating agent, and performing anaerobic treatmentin a high-efficiency anaerobic reactor; performing anaerobic / anoxic and aerobic circulation treatment in a multi-stage circulation aerobic treatment system, wherein the multi-stage circulation aerobic treatment system consists of anaerobic / anoxic reaction tanks A and aerobic reaction tanks O in an A-O-A-O-A-O-A staggered series connection mode; performing coagulative precipitation in a high-efficiency air floatation coagulative precipitation tank; and performing ozone oxidation and disinfection in an ozone oxidation tank to obtain recycled water. Compared with the conventional physical-chemical method, the technology has the advantages that: operating cost is obviously reduced, and over 30 percent of economic benefit is achieved. The quality of the treated water is high, and 70 percent ofrecycling rate can be achieved.
Owner:JIANGSU SHANGDA WATER AFFAIR

Domestic sewage treatment system and method for treating domestic sewage by using same

ActiveCN112062415AIncrease in sizeSolve the problem of high organic load and short hydraulic retention time of influent waterWater treatment parameter controlSpecific water treatment objectivesAerobic treatment systemSewage
The invention discloses a domestic sewage treatment system comprising an anaerobic treatment system, an aerobic treatment system, a precipitation system, a disinfection system, a sludge storage systemand a power distribution room; the anaerobic treatment system is additionally provided with a filler baffle plate and a rotary filler box, so that the contact time and area of domestic sewage and filler are increased, and the starting time is shortened; an underflow stirrer is additionally arranged, so that the problems of short flow, dead corner and the like are reduced; the volumes of compartments of a reactor are different, and the degradation efficiency is improved by utilizing the difference of microbial communities; according to the aerobic treatment system, a flow baffle is additionally arranged, the dissolved oxygen amount is increased in a mechanical mode, and the operation cost is saved; the different-wave baffle plate is utilized, so that the inflow retention time is prolonged,the surface of the baffle plate is rough, a film is easy to form on the baffle plate, and the treatment efficiency is improved; by adding a modified combined suspended filler, the film culturing efficiency of the filler is improved. The invention also discloses a method for treating domestic sewage by using the domestic sewage treatment system, biochemical treatment is carried out in the whole process, no chemical is added, and secondary pollution is reduced.
Owner:内蒙古东源环保科技股份有限公司

Method for predicting exposure level of chemicals of anaerobic-anoxia-aerobic treatment system

The invention discloses a method for predicting the exposure level of chemicals of an anaerobic-anoxia-aerobic wastewater treatment system (shortened as STP(A2 / O)). An STP(A2 / O) concept model is built according to co-existence relationship of environmental mediums such as air, water, suspended solids and sludge and mass flow process of the chemicals by taking the anaerobic-anoxia-aerobic wastewater treatment system as a basic technique; by defaulting environmental exposure scene parameters, the exposure level can be predicted by just inputting the molecular weight of the chemicals, the steam pressure (P), the water solubility (S), the anaerobic organism degradation rate (k10), the anoxia organism degradation rate (k12), the aerobic organism degradation rate (k5), the adsorption coefficient (Koc) and the emission load (ERC). The prediction method is simple, feasible, few in actually-measured parameters and high in prediction accuracy and has a great signification for evaluating exposure risk of the chemicals.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA

Decentralized wastewater treatment system for removing phosphorous

An on-site decentralized wastewater treatment system for treating phosphorous-containing wastewater including a sedimentation chamber and an anaerobic treatment system and / or an aerobic treatment system, along with a recirculation system which recirculates treated wastewater within the treatment system. The system further includes a system for introduction of a chemical agent into the recirculation system for complexing the phosphorous-containing compounds present in the wastewater.
Owner:ZOELLER PUMP

Industrial inorganic sewage treatment system

The invention discloses an industrial inorganic sewage treatment system and belongs to the field of sewage treatment systems. The industrial inorganic sewage treatment system comprises a first filtering basin, an acid-base pond, an oxidation pond, a settling pond, a second filtering basin, a membrane filtering basin, an anaerobic pond, an aerobic pond, a wet land, a detection pond and an ultraviolet sterilization pond, all of which are connected in sequence. The second filtering basin is provided with a one-way channel leading to the oxidation pond. The aerobic pond is provided with a one-way channel leading to the anaerobic pond. The detection pond is provided with a one-way channel leading to the acid-base pond, a one-way channel leading to the membrane filtering basin, a one-way channel leading to the anaerobic pond and a one-way channel leading to the wet land. The industrial inorganic sewage treatment system has the advantages that arrangement is reasonable and effective, different kinds of sewage is pretreated, and therefore it is ensured that a good and stable treatment effect can still be guaranteed on the condition of emission of different pollutants.
Owner:广东健恒环境产业有限公司

Exposure level prediction method of organic chemical of anaerobic-aerobic treatment system of wastewater

The invention discloses an exposure level prediction method of organic chemicals of an anaerobic-aerobic treatment system of wastewater (STP(A / O) for short). The method comprises the following steps: by taking A / O biological treatment system of wastewater as a basic process, constructing a STP(A / O) concept model according to a coexisting relationship of gas, water, suspended particles and a sludge environment-friendly medium and a mass flow process of the chemicals; and by defaulting an environmental exposure scene parameter, just inputting the molecular weights of the chemicals, a vapor pressure (P), water solubility (S), anaerobic biodegradation rate (k10), aerobic biodegradation rate (k5), adsorption coefficient (Koc) and discharge (ERC) to predict the exposure level. The prediction method is simple and feasible, fewer in measured parameters and relatively high in predicting accuracy, and has important meaning for evaluating exposure risk of the chemical.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA

Starch alcohol wastewater treatment system and method

The invention relates to an environment-friendly wastewater treatment process, in particular to a starch alcohol wastewater treatment system and method. The method comprises the steps of pretreatment, primary anaerobic treatment, secondary anaerobic treatment, secondary aerobic treatment, sludge treatment and the like. A CSTR, a UASB anaerobic reactor and an SBR aerobic treatment system are combined for treating the starch wastewater; meanwhile, the recovery of waste gas and waste slag in the wastewater treatment process is enhanced; the resource utilization rate is enhanced; the goal of further enhancing the waste slag and waste gas utilization in the wastewater treatment process is achieved; the cost is reduced; meanwhile, the operation efficiency of the equipment is ensured; the goal of discharging the wastewater in a standard reaching way is achieved.
Owner:GUANGXI LUOCHENG KECHAO FOUND SCI & TECH DEV

Pig breeding wastewater treatment system and application method

The invention provides a pig breeding wastewater treatment system and an application method. The pig breeding wastewater treatment system comprises a pretreatment system, an anaerobic treatment system, an aerobic treatment system, an advanced treatment system, a sludge treatment system, an industrial control computer and a full-automatic control system, wherein the industrial control computer is used for controlling power equipment in each treatment system to operate; the pretreatment system, the anaerobic treatment system, the aerobic treatment system and the deep treatment system are sequentially connected, the sludge treatment system is simultaneously connected with the pretreatment system and the aerobic treatment system, and the industrial control computer and the full-automatic control system are respectively connected with the pretreatment system, the anaerobic treatment system, the aerobic treatment system, the deep treatment system and the sludge treatment system. According to the pig breeding wastewater treatment system and the application method provided by the invention, the problems that the existing pig breeding wastewater is difficult to treat, the treatment process is immature, the effluent standard reaching is unstable, the process operation cost is high and the like are solved.
Owner:广州博才环保技术有限公司

Vacuum-actuated liquid disinfectant dispenser and system

A vacuum-actuated liquid chlorine dispenser for use in an aerobic treatment system. Effluent is diverted from a discharge pipe in an aerobic treatment system into an inlet of a venturi chamber. The resulting pressure differential resulting from effluent flowing through the venturi chamber is communicated to a dosage container, which results in disinfectant flow from a reservoir into the dosage container until the volume of disinfectant contained by the dosage container causes a pressure control device, such as a float valve, to inhibit further pressure communication. Thereafter, the accumulated disinfectant within the dosage container egresses through a disinfectant outlet that may include a flow regulation device such as a drip emitter or check valve. The present invention allows for more regular dosing of known and accurate disinfectant amounts following each pumping cycle of the aerobic treatment system.
Owner:D I R MFG & SUPPLIES

Alkaline method for treating black liquor from straw pulp paper-making

The present invention relates to an equipment and method for processing black liquor of straw pulp papermaking by alkaline method, which comprises the following two steps in turn: 1. Black liquor treatment: black liquor and flocculant are mixed with dilute acid in a static mixer, and the overflow of the tank is precipitated by flocculation. into the inclined mesh filter for filtration. When the inorganic acid acidifying agent is added, the pH value of the mixture is reduced to 3.5-1.5, and the lignin in the black liquor forms a brown floc which is easy to filter. The filtrate and floc can be separated quickly and well in the inclined screen filter. 2. Filtrate treatment: After 1-3 days of storage and hydrolysis, the filtrate is neutralized by adding white mud or lime, the waste produced by the papermaking alkali recovery method, so that the pH value reaches 6.5-7.2, and enters anaerobic after sedimentation in the sedimentation tank. Pool biochemical treatment. After treatment, enter the middle stage water treatment system for aerobic treatment and then reuse or discharge. The invention has simple equipment process and low investment, and after the filtrate is hydrolyzed, neutralized and anaerobic biochemically treated, it can ensure that the filtrate is discharged up to the standard without affecting the treatment effect of the subsequent middle stage after being mixed into the middle stage water.
Owner:济南大陆机电股份有限公司

Aerobic Treatment System

An aerobic treatment system is disclosed herein in which an aerobic holding treatment tank, having an inlet adapted to receive wastewater and an outlet adapted to discharge treated wastewater therefrom, is in communication with an aeration pump having an inlet nozzle in communication with the aerobic holding treatment tank for providing a source of air to the contents of the aerobic holding treatment tank. The aerobic treatment system may further include a generation pump disposed below ground level and in fluid communication with the aerobic holding treatment tank. The generation pump is provided in fluid communication with a high pressure pump in fluid access with an evaporator fan and misting nozzle. The system may further include electronics to connect to grid power, backup electronics for connection to auxiliary power sources, and at least one solar collector for providing a source of electricity.
Owner:DECHRISTOFARO DAVID +3

Vacuum-Actuated Liquid Disinfectant Dispenser and System

A vacuum-actuated liquid chlorine dispenser for use in an aerobic treatment system. Effluent is diverted from a discharge pipe in an aerobic treatment system into an inlet of a venturi chamber. The resulting pressure differential resulting from effluent flowing through the venturi chamber is communicated to a dosage container, which results in disinfectant flow from a reservoir into the dosage container until the volume of disinfectant contained by the dosage container causes a pressure control device, such as a float valve, to inhibit further pressure communication. Thereafter, the accumulated disinfectant within the dosage container egresses through a disinfectant outlet that may include a flow regulation device such as a drip emitter or check valve. The present invention allows for more regular dosing of known and accurate disinfectant amounts following each pumping cycle of the aerobic treatment system.
Owner:D I R MFG & SUPPLIES
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