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167 results about "Greywater" patented technology

Greywater (also spelled graywater, grey water and gray water) or sullage is all wastewater generated in households or office buildings from streams without fecal contamination, i.e. all streams except for the wastewater from toilets. Sources of greywater include, sinks, showers, baths, clothes washing machines or dish washers. As greywater contains fewer pathogens than domestic wastewater, it is generally safer to handle and easier to treat and reuse onsite for toilet flushing, landscape or crop irrigation, and other non-potable uses.

Device for purifying coal gasification high-pressure flash steam

The utility model belongs to the technical field of coal gasification high-pressure flash steam purification, and particularly relates to a coal gasification high-pressure flash steam purification device. The purification section is arranged above the heat exchange section of the hot water tower, high-pressure flash steam subjected to heat exchange with grey water is washed and purified, ammonium salt and ash in the high-pressure flash steam are removed, meanwhile, the flushing device is arranged on the cooler, the tube pass of the cooler is flushed, and the heat exchange efficiency is improved. Ammonium salt and ash attached to the inner wall of the cooler tube pass are flushed, so that the cooler tube pass can be efficiently prevented from being blocked; and the cooled high-pressure flash steam is subjected to gas-liquid separation, so that ammonium salt, ash and moisture in the high-pressure flash steam are greatly reduced, the high-pressure flash steam is purified and fed into a compressor, and the load and damage frequency of the compressor are reduced.
Owner:新疆天业汇合新材料有限公司 +1

Advanced treatment method and system for circulating ash water in coal chemical industry

The invention belongs to the technical field of coal chemical industry grey water treatment, and particularly relates to an advanced treatment method and system for coal chemical industry grey water circulating water. The method integrates pretreatment, complexing cracking, fractional crystallization and deep deamination, and is characterized in that a chelating structure of an organic phosphorus dispersing agent and calcium and magnesium ions is thoroughly destroyed through an advanced reduction-advanced oxidation combined process, target ions are released, and the core problems that hardness removal is hindered and phosphorus pollution is caused are solved; then, calcium and magnesium are respectively converted into calcium carbonate and magnesium ammonium phosphate particles for resource recovery by utilizing a secondary crystallization technology, so that the bottlenecks of high alkali liquor consumption and salt accumulation of a traditional high-pH magnesium ion precipitation method are broken through; and finally, the residual ammonia nitrogen is deeply removed by adopting a pollution-resistant PTFE hydrophobic membrane, so that the residual ammonia nitrogen is efficiently and stably removed, and the problem that a traditional polypropylene material membrane system is easy to pollute and block, easy to oxidize and difficult to apply to the field is solved.
Owner:QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES) +1

Environment coupling type grey biological membrane rural grey water recycling and resourceful treatment device

The invention discloses an environment coupling type grey biological membrane rural grey water recycling and resourceful treatment device, which belongs to the technical field of rural sewage treatment, and comprises a grey integrated structure, an efficient biofilm culturing structure and a biological membrane stabilizing structure, the gray integrated structure comprises a gray shell, the interior of the gray shell is divided into an anoxic zone, an aerobic zone and a settling zone through gray partition walls, and a flow guide groove is formed in the top of each gray partition wall; the efficient biofilm culturing structure is arranged in the aerobic zone through a biofilm stabilizing structure, and a gray microporous aeration device is arranged in the aerobic zone; the efficient biofilm formation structure comprises a plurality of Fe3O4-loaded gray PP fiber fillers; the biological membrane stabilizing structure comprises a gray filler frame, and each gray PP fiber filler is fixed on the gray filler frame. The invention solves the problems of low treatment efficiency, high cost, unstable biological membrane, algae growth and the like in the prior art, and realizes efficient purification treatment of grey water in rural domestic sewage.
Owner:LINGZHI ENVIRONMENTAL PROTECTION CO LTD +3

Accommodation equipped with grey water sorting equipment

Housing equipped with greywater sorting equipment. This housing includes an analysis cell (60) comprising a siphon (80) installed in a greywater outlet pipe. This siphon comprises: - a fixed body (82) equipped with an inlet pipe (90) and an outlet pipe (92) whose axes (94) of revolution coincide, - a plunger (84) interposed between the inlet pipes (90) and outlet pipes (92) to force the greywater to descend to a lower part (110) of the siphon before rising towards the outlet pipe, - a removable base (86) which completely surrounds the lower part, and - a turbidity sensor (124) fixed, without any degrees of freedom, to the siphon to measure the turbidity of the greywater in the lower part (110) of the siphon or between the lower part and an inlet of the outlet pipe. Fig. 2
Owner:WABASH AREA DEVELOPMENT INC

Coal-to-methanol ash water treatment system and optimization method

The invention discloses a coal-to-methanol ash water treatment system and an optimization method. The coal-to-methanol ash water treatment system comprises a first water heater, a second water heater, a first flash evaporator, a third water heater and a vacuum flash evaporation device; an inlet of the first water heater is connected with a chilling chamber of the gasification furnace; an inlet of the second water heater is connected with a washing tower of a gasification section; an inlet of the first flash evaporator is connected with an air outlet of the first water heater and an air outlet of the second water heater; an inlet of the third water heater is connected with a liquid outlet of the first water heater and a liquid outlet of the second water heater; and the vacuum flash evaporation device is used for further treating liquid at the bottom of the third water heater. According to the method, the salt in the high-concentration brine can be recycled and converted into a product for resource recycling, so that the problem of hazardous waste treatment of crystalline solids in related technologies is solved, the treatment efficiency is improved, and the treatment cost is reduced.
Owner:HUATING COAL GRP CO LTD

Grey water reclamation

A grey water reclamation system for a recreational vehicle includes an on-board use that generates grey water having a contamination level, a grey water treatment tank fluidly connected to the on-board uses to collect the grey water and treat the grey water therein to form treated grey water, and a coagulant dispenser and a flocculant dispenser each fluidly connected to the grey water treatment tank and configured to supply a predetermined amount of coagulant and flocculant, respectively, to the grey water treatment tank. The system also includes a grey water supply tank fluidly connected to the grey water treatment tank configured to receive the treated grey water therefrom and supply the treated grey water to a particular on-board use. The predetermined amount of coagulant is based on the contamination level or a turbidity of the treated grey water.
Owner:WHIRLPOOL CORP

Treatment system for rainwater recycling

The utility model provides a treatment system for rainwater recovery, and relates to the technical field of rainwater treatment, the treatment system comprises a wetland area, a magnetic flocculation device, an ultrafiltration membrane group, a nanofiltration membrane group and a clear water tank which are communicated in sequence, rainwater can flow through the wetland area, the magnetic flocculation device, the ultrafiltration membrane group and the nanofiltration membrane group in sequence to be filtered, and the clear water tank is communicated with the wetland area. The rainwater is gradually purified, so that the rainwater can reach the reclaimed water level and flows into the clean water tank; the treated rainwater can be used for toilet flushing, greening, road sweeping, car washing and the like, and recycling of the rainwater is achieved.
Owner:BEIJING CAPITAL INT AIRPORT CO LTD

Efficient gas washing tower

The utility model relates to the technical field of washing towers, and provides an efficient gas washing tower which comprises a main tower body and a gas inlet auxiliary tower body, the gas inlet auxiliary tower body is arranged at the bottom of the main tower body, a supporting frame is fixed on the outer wall of the main tower body, a gas inlet is formed in the outer wall of the gas inlet auxiliary tower body, and a circulating pump is arranged in the main tower body. The washing and dispersing assembly is arranged between the circulating pump and the main tower body, the filtering assembly is arranged at the inlet end of the circulating pump and in the air inlet auxiliary tower body, the washing and dispersing assembly comprises an inner shell, the inner shell is fixed in the main tower body, the circulating pump is fixed in the inner shell, a central pipe is arranged at the top of the inner shell, and the water outlet end of the circulating pump is communicated with the central pipe; a dispersing cover is arranged at the upper end of the central pipe. According to the technical scheme, the problems that in the prior art, if a bubble-covered tray is used, washing high-temperature grey water and synthesis gas are condensed to generate a large amount of dust, so that the bubble-covered tray is easily blocked or stuck, the synthesis gas carries water seriously, and the stable operation of a system is influenced are solved.
Owner:TANGSHAN TIANSHUN COAL COKE CHEM CO LTD

Filtration system

The present disclosure provides a device, a system, and a method for filtering liquids, in particular for filtering gray water such that it can be reused for multiple purposes. Also provided is an optional step of purifying the liquid with a chemical such that the filtered liquid is also potable.
Owner:THE PENNINGTON SCHOOL WOMEN IN STEM SOLVING PROBLEMS (WISSP)

Loading device for gasification coarse slag

The utility model discloses a kind of loading devices of gasification coarse slag, belong to synthetic ammonia technical field.It include installation platform, distributing pipe, ash water collection tank, sludge dredger, vibrating screen, ash water collection basin, first stair and second stair;The bottom end of distributing pipe is equipped with spare discharge gate and dewatering discharge gate, dewatering discharge gate is connected with vibrating screen, ash water collection basin is located just below vibrating screen and it is connected with ash water collection tank by drain pipe;Installation platform is double-layer structure and it is set along front-back, vibrating screen is set in first layer along front-back, spare discharge gate is located just in front of or just behind vibrating screen, ash water collection tank is located left side or right side of installation platform, sludge dredger and drain pipe are set in left-right direction inclination;First stair is set between first layer and ground, it is located on the side of installation platform close to ash water collection tank, and it is set along left-right direction;Second stair is set between second layer and first layer, and it is set along front-back, and it is located on the side of installation platform away from ash water collection tank.
Owner:HUBEI YUNHUAAN CHEM CO LTD

Gasification grey water high-flash gas recovery device

The utility model relates to the technical field of high-flash gas recovery, in particular to a gasification grey water high-flash gas recovery device which comprises a first condenser, a second condenser, a torch and a boiler. And a second treatment pipeline is fixedly communicated between the outlet of the second condenser and the first treatment pipeline. The device is reasonable and compact in structure and convenient to use, gasified grey water high-flash gas sent out by the high-pressure flash tank is condensed by the first condenser and then sent into the boiler for blending combustion of byproduct steam, the gasified grey water high-flash gas can be effectively recycled, the combustible gas byproduct steam rich in the gasified grey water high-flash gas is utilized, and the utilization rate of the byproduct steam is improved. The consumption of torch natural gas is reduced, the release of waste gas is reduced, and the environmental protection pressure is relieved.
Owner:新疆心连心能源化工有限公司

Simple ash pool used in boiler room

The utility model discloses a simple ash pool used in a boiler room, belongs to the technical field of thermal engineering, and solves the problems of high water consumption and low efficiency of the existing hydraulic ash removal system. The two ends of the sedimentation tank are respectively provided with a water inlet distribution channel and a grey water recycling channel, the water inlet distribution channel is connected with a water inlet pipe, a plurality of water distribution holes are formed in the channel wall of the water inlet distribution channel, the water inlet distribution channel is communicated with the sedimentation tank through the water distribution holes, and the sedimentation tank is communicated with the grey water recycling channel in an overflow manner through a partition wall between the sedimentation tank and the grey water recycling channel; a circulating water pump is arranged in the grey water recycling channel, and the output end of the circulating water pump is connected with a water outlet pipe. The device is arranged in the boiler room and is connected with an ash ditch of the boiler room, after ash water is settled in the settling pond and supernate overflows into the ash water recycling ditch, the ash water is pumped and recycled through the circulating water pump, the consumption of water for ash removal is greatly reduced, the treatment efficiency is improved through the settling separation process, and the treatment cost is reduced. The problem that ash removal water and ash are mixed and are not beneficial to discharge and treatment is solved.
Owner:中国市政工程西北设计研究院有限公司

A backwash water concentrate recycling device

This utility model discloses a backwash water concentrate recovery and utilization device, belonging to the field of water treatment technology. It includes a first filtration device, a second filtration device, and a third filtration device. The first, second, and third filtration devices are connected to the inlet of a wastewater collection tank. The outlet of the wastewater collection tank is connected to a wastewater pipe, which is connected to the inlet of a wastewater pump. The outlet of the wastewater pump is connected to a greywater treatment mechanism and also to a water purification mechanism. This utility model, employing the aforementioned backwash water concentrate recovery and utilization device, reduces the operating load and cost of the greywater treatment system, optimizes the water quality balance of the circulating water system, and prevents corrosion or scaling of cooling equipment, thereby ensuring the efficient and stable operation of the water treatment system.
Owner:MINGSHUI CHEM FERTILIZER PLANT

A device and method for household grey water treatment and reuse

The present invention discloses a modular treatment system and its operational method that enables recovering reuse-quality water from grey water discharged from individual houses and apartments. The present invention serves as a replacement for the existing soak pits where the grey water is disposed of without any treatment, leading to contamination of water environment. The invention integrates anaerobic and aerobic biofilms on natural fibre and various macrophytes to treat greywater effectively. It is particularly suitable for household and community-level applications, offering a sustainable solution to reduce freshwater consumption and mitigate water pollution.
Owner:COUNCIL OF SCI & IND RES

Sanitary unit having a greywater recovery system for flushing water

The invention relates to a method for flushing a sanitary unit, comprising the steps of: - supplying greywater from a greywater line (61) into an interior of a greywater container (40); - temporarily storing the greywater in the greywater container (40) under ambient pressure; - conveying the greywater by means of a greywater pump (30) from the interior of the greywater container (40) under ambient pressure to a flushing device (11), the greywater being conveyed through a filter arrangement (50) arranged in the interior of the greywater container (40) to the greywater pump (30) located behind this filter device (50) in the flow direction; - discharging the greywater using overpressure from one or more flushing openings of the flushing device (11) into a sanitary element (10) to be flushed. The invention likewise relates to a sanitary unit having the features necessary for carrying out the method.
Owner:TRAINVAC GMBH

Integrated grey water collecting and treating equipment

The utility model relates to the field of wastewater treatment equipment, and discloses integrated grey water collecting and treating equipment which comprises a treating box, two mounting frames are fixedly connected to the inner wall of the treating box, partition plates are fixedly connected to the middles of the mounting frames, and the two partition plates divide the interior of the treating box into a collecting tank, a filtering tank and a clean water tank from left to right in sequence. A communicating pipe is fixedly connected to the mounting frame between the collecting tank and the filter tank, a filter box is arranged in the filter tank, filter screens are connected to the top and the bottom of the filter box, a fixing assembly is mounted in the filter box, and two overflow grooves are formed in the mounting frame between the filter tank and the clean water tank. And a lifting pump is arranged in the clean water tank. According to the utility model, the interior of the treatment box is reasonably divided into the collecting tank, the filtering tank and the clean water tank, so that grey water can be treated in different treatment stages in sequence. The collecting tank can effectively temporarily store grey water, and the communicating pipe ensures that the grey water is stably conveyed to the filtering tank.
Owner:HEBEI LONGHAI SHENGDA ENVIRONMENTAL PROTECTION TECH CO LTD

Coal gasification black water treatment device system and method

The present application provides a coal gasification black water treatment device system and method, which adopts two-stage vortex separation devices for heat recovery and solid-liquid separation, wherein the secondary vortex separation device improves the solid-liquid separation effect by adding a specific composite medicament, and the treated grey water meets the requirements of the subsequent biochemical treatment; the coal gasification black water treatment device system cancels the high-pressure flash evaporation device, low-pressure flash evaporation device, deoxygenation device and sedimentation device required to be arranged in the traditional coal gasification black water treatment device system, and solves the problems of complex existing process flow, large equipment occupation area and low heat utilization rate.
Owner:WANHUA CHEMICAL(FUJIAN) CO LTD +2

Grey water ph regulating device

The application provides a grey water PH regulating device, relates to the technical field of PH regulation, and comprises an adjusting tank and a filtering device, a water inlet pipe is fixedly connected to one side of the adjusting tank, a water outlet is fixedly connected to the lower end of the one side of the adjusting tank, a filtering device is arranged on the inner wall of the adjusting tank and corresponds to the position of the water inlet pipe, the filtering device comprises a filtering pipe, the two ends of the filtering pipe are slidably connected with the inner wall of the adjusting tank, mounting plates are fixedly connected to the two ends of the filtering pipe, sliding blocks are fixedly connected to the two sides of the mounting plates, sliding grooves are formed in the inner wall of the adjusting tank and correspond to the positions of the sliding blocks, and the surfaces of the sliding blocks are slidably connected with the inner walls of the sliding grooves. The filtering device, the stirring device and the gas exchange device are designed, so that the problem that the traditional filtering device is inconvenient to disassemble and clean, is easy to cause the mesh holes to be blocked by sundries, affects the water inflow, and has low PH regulation precision is solved.
Owner:INNER MONGOLIA BAOFENG COAL-BASED NEW MATERIAL CO LTD

greywater supply system

ActiveCN224281428UAffect water supply pressureGuaranteed water pressureWater/sewage treatment by irradiationService pipe systemsWater useWater storage tank
This utility model discloses a greywater supply system, including a water storage tank. The inlet of the water storage tank is connected to an inlet pipe, and the outlet of the water storage tank is connected to a supply pipe and a return pipe. The supply pipe includes a first automatic valve, a controllable check valve, and a pressure sensor, arranged sequentially downstream of the connection point of the supply and return pipes. The return pipe includes a second automatic valve, located downstream of the connection point of the supply and return pipes. The supply pipe connects to a water usage point, and the return pipe connects to the return port of the water storage tank. This utility model, by installing a pressure sensor and a first automatic valve on the supply pipe and a second automatic valve on the return pipe, allows the pressure sensor to detect water demand. When water demand is present, the second automatic valve can shut off the return pipe, thus preventing water from flowing back through the return pipe and affecting the supply pressure of the supply pipe, effectively ensuring the water pressure at the water usage point.
Owner:SUZHOU XINGONG ENVIRONMENTAL ENG TECH CO LTD

Rural domestic grey water residue and oil separation efficient integrated pretreatment device

The invention discloses a rural domestic grey water residue and oil separation efficient integrated pretreatment device, and relates to the technical field of grey water pretreatment, the rural domestic grey water residue and oil separation efficient integrated pretreatment device comprises a treatment box, an inspection well and an observation hole which are connected to the treatment box, and a treatment assembly and an adjusting assembly which are arranged in the treatment box, by combining the triple effects of physical adsorption, chemical catalysis and microbial degradation of the suspended matter filler, the difficultly decomposed organic matters and colloidal impurities in the sewage are deeply treated, the degradation efficiency of difficultly decomposed pollutants is greatly improved, deposition in subsequent links is avoided, the treatment load of a subsequent soil infiltration system is reduced, the stable operation of the whole process is ensured, and the treatment cost is reduced. And the treated grey water flows along the water outlet pipe, finally flows into the water outlet channel and flows out along the water outlet. After pretreatment, the concentration of sewage pollutants is greatly reduced, the system is more adaptive to the purification capacity of a soil infiltration system, an efficient preposed guarantee is provided for an infiltration path of rural domestic sewage resource utilization, and compared with a single cavity in the prior art, the integrated design saves the occupied area.
Owner:TECH CENT FOR SOIL AGRI & RURAL ECOLOGY & ENVIRONMENT MINIST OF ECOLOGY & ENVIRONMENT

Sewage separation and collection method and system based on negative pressure source

The invention relates to the technical field of water treatment, in particular to a sewage separation and collection method and system based on a negative pressure source. Comprising a sewage source separation module, a negative pressure collection network, a multistage processing module, an intelligent control center, a safety monitoring module, an energy management module, a management module, a login module, an authority control module, an encryption transmission module, a block chain storage module and a prediction maintenance alarm module. The multi-stage treatment module comprises a black water advanced treatment unit, a grey water ecological treatment unit, a water quality improvement unit and a resource utilization unit; the negative pressure collection network is connected with the sewage source separation module, the multi-stage treatment module is connected with the negative pressure collection network, and the technical problems that in the prior art, when comprehensive intelligent management is achieved, operation and maintenance mostly depend on regular overhaul and post-event treatment, and accurate prediction and active maintenance of the system state are difficult to achieve are solved.
Owner:江苏题桥循环经济科技有限公司

Integrated grey water recycling system

The utility model discloses an integrated grey water recycling system, which relates to the technical field of grey water recycling, and comprises a washing waste water collecting pipe network, a hair collector is arranged on one side of the washing waste water collecting pipe network, a self-cleaning filter is arranged on one side of the hair collector, and the self-cleaning filter is arranged on the other side of the washing waste water collecting pipe network. An ultraviolet germicidal lamp is arranged on one side of the self-cleaning filter, a grey water storage tank is arranged on one side of the ultraviolet germicidal lamp, one side of the grey water storage tank is connected with a sodium hypochlorite sterilizer through a pipeline, and a variable-frequency pressure pump is arranged at the water outlet end of the grey water storage tank; according to the scheme, the problems that ash water of existing schools is regarded as waste water to be directly discharged into sewers or sewage treatment plants to be treated, consequently, water resources are seriously wasted, the water supply pressure of cities is increased, and the environment is polluted are solved.
Owner:KAIFENG SANJIANGYUAN WATER SUPPLY & DRAINAGE EQUIP

Electrocatalysis assembly for recycling grey water and water treatment system

The invention relates to an electro-catalysis assembly for recycling grey water and a water treatment system, and belongs to the technical field of grey water treatment, the electro-catalysis assembly comprises a membrane cylinder, a water guide net pipe, an electro-catalysis membrane and an anode bar, a water inlet end cover is fixed at a water inlet port of the membrane cylinder, a water outlet end cover is fixed at a water outlet port of the membrane cylinder, a water inlet and an anode hole are formed in the water inlet end cover, and a water outlet hole is formed in the water outlet end cover; the closed end of the water guide net pipe is fixed on the water inlet end cover, and the other open end of the water guide net pipe is fixed and communicated with the water outlet hole; the electro-catalysis membrane is wrapped and fixed on the outer side pipe wall of the water guide net pipe; and one end of the anode bar penetrates through the anode hole, extends into the membrane cylinder and is electrically connected with the electro-catalysis membrane through grey water in the membrane cylinder. According to the invention, the electro-catalytic membrane is wrapped and fixed outside the water guide net pipe, and when grey water flows in from the water inlet of the water inlet end cover, the grey water can flow out from the water outlet of the water outlet end cover through the filtration of the electro-catalytic membrane and the guidance of the pipe holes of the water guide net pipe, so that organic matters can be effectively removed, microorganisms can be effectively killed, the membrane pollution can be delayed, and the service life of the membrane can be prolonged.
Owner:JIANGSU CRRC ENVIRONMENT CO LTD +1

Air source-water source hybrid heat pump system and working method

This invention discloses an air-source-water source composite heat pump system and its operating method, solving the problems of low coefficient of performance and reliance on high-energy-consuming reverse-cycle defrosting methods in existing coupled systems, which are mostly simply set up in series or parallel. It has the beneficial effects of improving the coefficient of performance and ensuring the continuity and stability of industrial heating. The specific solution is as follows: An air-source-water source composite heat pump system includes a photovoltaic waste heat utilization unit: including a duct, the duct being placed on the back side of the photovoltaic module; a municipal greywater waste heat utilization unit: including a municipal greywater waste heat exchanger, the municipal greywater waste heat exchanger being connected to a municipal greywater pipeline; a low-temperature air-source-water source composite heat pump unit: including a photovoltaic-side evaporator, a first greywater-side evaporator, and a first-stage heating condenser located at the end of the duct, the municipal greywater waste heat exchanger being connected to the first greywater-side evaporator; and a high-temperature air-source-water source composite heat pump unit.
Owner:SHANDONG UNIV

Device and method for cleaning water accruing from drilling in the ground

ActiveUS12643060B2Sedimentation tanksSettling tanks feed/dischargeParticulatesWell drilling
Device (200) for cleaning grey water containing particulate material, comprising a container (201) in turn comprising a water entry (202); a slurry exit (204); a cleansed water exit (203); and a sedimentation volume (220). The invention is characterised in that the container further comprises a flocculant provision means, arranged to add a flocculant (212) to grey water entering via the water entry, so that grey water having entered said sedimentation volume after such adding contains said flocculant, in that the flocculant provision means comprises a vertical chute (213) arranged to convey, via gravity, said grey water from an upper part of said container to be released via an open lower end (215) of the chute into said sedimentation volume at a height of at the most 1 m above a bottom (221) of said sedimentation volume, the chute having a cross-sectional area of at least 0.1 m2. The invention also relates to a method.
Owner:ROTOTEC AB

Vermifilter systems and methods for wastewater filtration

PCT designated stageWO2026178059A1MicroorganismBlackwater
Provided herein are filtration systems for treating wastewater (e.g, grey water and / or blackwater). The wastewater filtration system can include, one or more inlet pipes, a first container comprising one or more vermifilters, a second container comprising one or more vermifilters and one or more plant species, a filter system and / or one or more outlet pipes. More particularly, the wastewater filtration system provided herein includes a macro-organism and / or microorganisms for primary and secondary treatment of wastewater. In some embodiments, the macro-organism comprises Eisenia fetida. In some embodiments, the macro- organism comprises a plant species. In some embodiments, the microorganism comprises a bacteria species.
Owner:TBF-SOLUTIONS INC

Design methods, crack-resistant curing systems and construction methods for tunnels

This invention discloses a design method, a crack-resistant maintenance system, and a construction method for a tunnel crack-resistant maintenance system, comprising the following steps: design preparation, obtaining tunnel parameters and indicators, including tunnel length, construction progress, maintenance time requirements, pedestrian crossing spacing, ventilation facility installation, water supply facility installation, and temperature and humidity inside and outside the tunnel, and determining the location of sub-maintenance systems; designing the ventilation device of the maintenance system based on the installation of ventilation facilities inside the tunnel, including the design of ventilation duct routes; designing the circulation device of the maintenance system based on the installation of water supply facilities inside the tunnel, including the layout design of water circulation pipes and greywater recycling devices, and drawing a layout diagram; calculating the turnover cycle and turnover distance; designing a humidification device, which includes a humidification material sheet made of wet film, the humidification device being supplied with water by the circulation device, and the ventilation device being used to humidify external air by passing through the humidification device; and calculating the optimal wind speed and circulating water temperature.
Owner:CCFEB CIVIL ENG +1

Bypass grey water washing liquid pretreatment method and system based on CO2 softening

The invention relates to the technical field of bypass grey water treatment, in particular to a bypass grey water washing liquid pretreatment method and system based on CO2 softening. The method comprises the following steps: enabling flue gas to be treated to pass through a superfine bubble generator, and injecting into a first reactor according to an initial set flow; adding calcium carbonate seed crystals into the first reactor and stirring to form slurry containing calcium carbonate microcrystals; pumping the slurry into the bottom of a second reactor, and enabling the slurry to pass through a fluidized bed layer at an initial ascending velocity; monitoring bed fluidization quality, and determining whether bed fluidization quality detection is triggered or not; and determining whether to trigger crystallization process efficiency detection according to a bed fluidization quality detection result. By automatically diagnosing root causes of problems such as excessive nucleation, growth limitation or fluidization deterioration and dynamically adjusting parameters such as air inflow and ascending velocity, calcium and magnesium ions are efficiently removed, stable operation of subsequent evaporative crystallization is guaranteed, and controllable production of particle size and purity of a calcium carbonate product is realized.
Owner:BEIJING CI ROTEN ENVIRONMENTAL PROTECTION TECH CO LTD

A drain system and a shower or shower cabin

The present invention relates to a drain system for recovering thermal energy from a flow of shower or faucet greywater. The drain system comprises: a drain collector having a receiving surface for receiving greywater, and a drain collector outlet formed in the receiving surface for discharging greywater from the receiving surface; a heat exchanger configured to heat a flow of incoming cold water with the greywater; an upstream filter and a downstream filter, arranged to filter the greywater flowing along the receiving surface to the drain collector outlet, wherein the upstream filter comprises a first filter screen protruding from the receiving surface and the downstream filter comprises a second filter screen arranged upstream the drain collector outlet.
Owner:ENDUCE AB

Gasification grey water quality optimization device and optimization method thereof

The invention belongs to the technical field of pressurized gasification devices and water treatment.The device comprises a flash evaporation system and a sedimentation system.The flash evaporation system comprises a high-pressure flash evaporation tank, a saturated hot water tower, a high-flash condenser and a high-pressure flash evaporation separator, the settling system comprises a plurality of settling tanks, and each settling tank comprises a settling tank body A for removing turbidity and a settling tank body B for removing hardness; the high-pressure flash tank is used for treating black water from a gasification furnace and a washing tower, the liquid outlet of the high-pressure flash tank is communicated with a low-pressure flash tank, the steam outlet of the low-pressure flash tank is communicated with a deaerator, an acid gas condenser and an acid gas separator, and the liquid outlet of the acid gas separator is communicated with the settling tank. According to the gasification grey water quality optimization device and the optimization method thereof, the design is reasonable, the structure is simple, safety and reliability are achieved, use is convenient, and the good application and popularization value is achieved.
Owner:SHANDONG JINMEI MINGSHENGDA CHEM CO LTD