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93 results about "Biological decontamination" patented technology

Extracorporeal bioengineered dual-cell liver regeneration system (EBDLR) and bio purifier therefor

A multi-layered bio purifier includes a plurality of layers. Each layer may include a membrane having a first side and a second side opposite the first side, a first channel formed on the first side, and a second channel formed on the second side. Further, each layer may include a first type of cells formed on the first side in the first channel and a second type of cells formed on the second side in the second channel. The multi-layered bio purifier includes a first manifold assembly to split incoming blood into the first channel and the second channel of the plurality of layers and a second manifold assembly to combine processed blood from the first channel and the second channel of the plurality of layers. The processed blood may include detoxified or purified blood.
Owner:YKRITA LIFESCIENCES PTE LTD

Composite microbial agent, application of composite microbial agent and method for treating high-concentration organic wastewater

The application provides a composite microbial agent, application of the composite microbial agent and a treatment method of high-concentration organic wastewater. The active component of the composite microbial agent provided in the first aspect of the application comprises two or three of Paecilomyces varioti MM2 strain, Aspergillus fumigatus MM6 strain, Candida rugosa MJ4 strain and Bacillus licheniformis MX8 strain. The composite microbial agent provided in the first aspect of the application can be used for biological decontamination treatment of high-concentration organic wastewater, so as to realize degradation of organic pollutants in the high-concentration organic wastewater and pH value adjustment, thereby avoiding increase of the load of a municipal sewage treatment system.
Owner:KWEICHOW MOUTAI COMPANY

Extracorporeal bioengineered dual-cell liver regeneration system (EBDLR) and bio purifier therefor

An EBDLR system includes a multi-layered bio purifier having a plurality of layers. Each layer includes a membrane, a first type of cells on a first side of the membrane in a first channel, and a second type of cells on a second side of the membrane in a second channel. The EBDLR includes a plasma separator to receive blood from a subject and separate a plasma component from the blood, a first reservoir to collect the plasma component, and a second pump to move the plasma component from the first reservoir to the multi-layered bio purifier. The multi-layered bio purifier distributes the plasma component into the first and second channels of each layer to purify the plasma component. The EBDLR includes a second reservoir to collect the purified plasma component and a third pump to infuse the purified plasma component from the second reservoir into the subject.
Owner:YKRITA LIFESCIENCES PTE LTD

Biological decontamination device for artificial breeding of sea cucumbers

The invention belongs to the technical field of decontamination, and particularly discloses a sea cucumber artificial culture biological decontamination device which comprises a culture pond, side tables are fixedly installed on the two sides of the top of the culture pond, L-shaped moving tables are movably installed above the two side tables, and through grooves are formed in the surfaces of the ends, located in the culture pond, of the L-shaped moving tables. A through groove is formed in the top of the culture pond, a swing mechanism is installed in the through groove, extrusion mechanisms are installed at the four end corners of the top of the culture pond, a reset mechanism is arranged at the top of the swing mechanism, and a material pushing plate is movably arranged in the culture pond. The L-shaped moving table and the material pushing plate horizontally move in the culture pond, the material pushing plate can push impurities floating on the water surface of culture water to the end of the culture pond, workers can conveniently clean the impurities on the water surface, under cooperation of the extrusion mechanism and the swing mechanism, the material pushing plate can incline, the impurities on the water surface of the culture water can be lifted up, and therefore the impurities on the water surface of the culture water can be removed. And the cleaning of the impurities by workers is further facilitated.
Owner:CHANGDAO COUNTY TIANSHUN MARINE AQUATIC PRODUCTS CO LTD

Treatment device for VOCs waste gas discharged from oil and gas field produced water and waste gas treatment method thereof

The invention relates to the technical field of VOCs waste gas purification treatment of oil and gas field produced water, in particular to a treatment device for VOCs waste gas discharged from oil and gas field produced water and a waste gas treatment method of the treatment device. An ultraviolet photolysis and power device is communicated with a VOCs waste gas input pipeline, and a pressurized waste gas output pipeline is communicated between the ultraviolet photolysis and power device and a biological purification trickling filter device; a circulating liquid input pipeline is communicated between the biological purification trickling filter device and the ultraviolet photolysis and power device, a circulating liquid output pipeline is communicated between the ultraviolet photolysis and power device and the biological purification trickling filter device, and the biological purification trickling filter device is communicated with a purified standard waste gas discharge pipeline. An ultraviolet photolysis oxidation technology is used as a pretreatment process, and then purified standard waste gas is obtained through a biological treatment process. The VOCs waste gas in the produced water of the oil and gas field is treated by adopting a green and environment-friendly process technology, the process is simple, the treatment efficiency is high, and the VOCs treatment cost of an enterprise is reduced.
Owner:XINJIANG PETROLEUM ENG DESIGN CO LTD +3

Ecological aquaculture sewage multi-stage biological purification device

The invention relates to the technical field of purification devices, in particular to an ecological aquaculture sewage multi-stage biological purification device which comprises a foundation plate, a first-stage purification pond, a second-stage purification pond and a third-stage purification pond are fixedly arranged on the foundation plate, and multi-stage biological purification of sewage is achieved through the first-stage purification pond, the second-stage purification pond and the third-stage purification pond; the biological membrane bearing plates are respectively positioned in the first-stage purification tank, the second-stage purification tank and the third-stage purification tank and are used for forming biological membranes to realize biological purification of the sewage; when the biological membrane bearing plates are installed, the biological membrane bearing plates only need to be connected to the installation bearing blocks in a sleeving mode, then the hydraulic rod pieces are started, the multiple biological membrane bearing plates can be automatically fixed, manual fixing operation on the biological membrane bearing plates is not needed, the operation is very convenient and rapid, meanwhile, the biological membrane bearing plates can be driven to move into the corresponding purification ponds, and the working efficiency is improved. The mounting efficiency of the biological membrane bearing plate is improved to a great extent, and the working intensity of workers is relieved.
Owner:INNER MONGOLIA SHAW ECOLOGICAL AGRICULTURE TECHNOLOGY DEVELOPMENT CO LTD

Ecological purification system for riverway water intake

The utility model discloses an ecological purification system for a water intake of a riverway, which relates to the technical field of water ecological purification and particularly comprises a first soft enclosure, a second soft enclosure and a third soft enclosure, the first soft enclosure, the second soft enclosure and the third soft enclosure are sequentially arranged and are all in a similar arc shape, the first soft enclosure is arranged on an upstream face, and the second soft enclosure is arranged on a downstream face. The second soft enclosure is arranged on the inner side of the water intake; a filtering area is formed between the first soft enclosure and the second soft enclosure, a filtering assembly is arranged in the filtering area, a floating island area is formed between the second soft enclosure and the third soft enclosure, aquatic plants and first filler are arranged in the floating island area, and the first filler is arranged below the aquatic plants. According to the ecological purification system for the riverway water intake, the three soft enclosures are designed, the filtering area and the floating island area are formed, functional distinguishing is achieved, water at the water intake is purified in the modes of physical filtering, biological purification and ecological buffering, the water quality of the water intake is remarkably improved, and burden is relieved for subsequent water treatment.
Owner:HEFEI WOYU ENVIRONMENTAL PROTECTION TECH CO LTD

Biological deodorization and mist removal device, method for preparing filler and application in treatment of mixed exhaust gas

The embodiment of the application provides a biological deodorization and demisting device, a filler preparation method and application in mixed waste gas treatment, and belongs to the technical field of biological purification and waste gas treatment. The device comprises: a pretreatment unit comprising a gas distributor and a spraying humidifier arranged together; a biological reaction unit for biodegradation of waste gas discharged from the pretreatment unit, which comprises at least one layer of composite filler layer, and catalyst is loaded in the layer height direction by layered spraying, and composite bacteria are loaded on the layer surface; a demisting unit comprising a demister and a separator for hierarchical and collaborative removal of mist droplets; and a control unit for real-time monitoring and adjustment of temperature, humidity, pH value, bacteria activity and pollutant concentration. The application realizes efficient and collaborative purification of H2S, NH3, VOCs and oil mist droplets in mixed waste gas, improves biological activity in the filler and prolongs the replacement cycle.
Owner:BEIJING ZHONGDINGHENGYE SCI & TECH CO LTD

System and method for bio-decontamination of an aqueous solution contained in a tank on board a motor vehicle with an internal combustion engine

The invention relates to a method for the bio-decontamination of an aqueous solution held in a tank on board a motor vehicle having a combustion engine. According to the invention, this method comprises the following steps: • Obtaining information encoded in a navigation system or GPS system, said information comprising at least a first journey time, tr1; • If the first journey time, tr1, is greater than a first time value, t1, triggering the heating of the aqueous solution held in the holding tank in order to reach a first temperature of the aqueous solution, T1, at least equal to 60°C for a second time value, t2, • Keeping the aqueous solution at at least said first temperature of the aqueous solution, T1, for a third time value, t3.
Owner:OPMOBILITY C POWER BELGIUM RESEARCH

Water purification device for prawn culture

The utility model discloses a water purification device for prawn culture, which comprises a sediment filter tank, a biological purification tank, an adsorption tank and a disinfection tank, the top of the left end of the sediment filter tank is communicated with the bottom of a water inlet pipeline, a first control valve is arranged at the joint of the water inlet pipeline and the sediment filter tank, and the water inlet end of the water inlet pipeline is connected with a culture pond water outlet pipe; a first filter screen and a second filter screen are arranged in the sediment filter box, the first filter screen is located on the left side of the second filter screen, the right end of the sediment filter box is communicated with the left end of the biological purification box through a communication pipeline, a valve is installed on the communication pipeline, and a cleaning water inlet pipe used during cleaning is arranged at the right end of the sediment filter box. The device realizes graded filtration of solid impurities with different particle sizes in the aquaculture water, can efficiently intercept various solid pollutants such as residual feeds and shrimp shells, effectively reduces the content of suspended solids in the water, and reduces the burden for the subsequent purification link.
Owner:FUJIAN RONGSHENG AGRI COMPREHENSIVE DEV CO LTD

A hydrophilic round square membrane bed biological purification system and method

The application discloses a hydrophilic round square membrane bed biological purification system and method, which comprises an aerobic main body reaction unit, one end of the aerobic main body reaction unit is provided with a unit inlet overflow pipe part, and the other end is provided with a unit outlet overflow pipe part, a water passing arc wall part is arranged in the aerobic main body reaction unit, the water passing arc wall part comprises a front area mixed medicine arc wall part, a interception and filtration purification arc wall part and a rear area mixed medicine arc wall part, a water round square membrane bed part is arranged between the front area mixed medicine arc wall part and the interception and filtration purification arc wall part, an air inlet of the water round square membrane bed part is connected with an aeration oxygen supply part, and air inlets of the front area mixed medicine arc wall part and the rear area mixed medicine arc wall part are connected with front and rear arranged medicine adding parts; the application can efficiently and quickly and with energy saving and low consumption deal with organic or inorganic pollutants with normal chain functional groups which are carried in water.
Owner:YANGTZE ECOLOGICAL ENVIRONMENTAL PROTECTION GRP EAST CHINA CO LTD +1

A novel biological deodorization and purification device

This invention discloses a novel biological deodorization and purification device, comprising a shell, a pretreatment section, a biological purification section, an induced draft fan, a collection duct, and a delivery duct. The pretreatment section includes three parallel chambers, each containing a spray system with a pump and piping. The biological purification section includes an exhaust gas duct, a biologically active packing layer, a temperature and humidity sensor, a carbon source inlet, a spray system, and an exhaust gas outlet. The pretreatment and biological purification sections efficiently remove inorganic and organic components from high-concentration, irritating, and harmful gases generated in the livestock and poultry farming industry, achieving compliant emissions after deodorization. In use, this invention simplifies large-scale biological deodorization and purification equipment combined with a scrubbing system, solving the problems of excessive floor space and cumbersome installation of the original system, and achieving the removal of complex malodorous gas components.
Owner:SHENZHEN CHANGLONG TECH CO LTD

Fresh and fresh food temporary rearing integrated device

The invention relates to the technical field of fresh and alive short-time culture devices, and particularly discloses a fresh and alive temporary culture integrated device which comprises a temporary culture pond, a first filter pond, a second filter pond and a nitrification pond which are integrated on the same base, and water in the temporary culture pond enters the first filter pond through primary filter holes and is lifted to a flow dividing pipe at the top of the second filter pond through a water pump; the water flows through a detachable nitrification filter bag to be subjected to preliminary filtration and nitrification treatment; then the water body enters the bottom of the nitrification tank through the first overflow pipe, is subjected to deep biological purification through the biological carrier filler, and finally flows back to the temporary culture tank through the second overflow pipe to form closed-loop circulation. According to the device, harmful substances such as ammonia nitrogen are efficiently degraded through multi-stage physical and biological synergistic purification, and a conical bottom pollution discharge and directional oxygenation structure is combined, so that the water quality stability is remarkably improved, the water changing frequency and the maintenance cost are greatly reduced, and a stable and healthy temporary culture environment is provided for fresh and alive fresh food.
Owner:LANZHOU ZHENGXINGYUAN ECOLOGICAL AGRI DEV CO LTD

Modular biological reaction sewage treatment equipment

The utility model relates to the technical field of sewage treatment design, in particular to modular biological reaction sewage treatment equipment. Comprising a sewage treatment tank, a mounting cavity is formed in the sewage treatment tank, and an impurity filtering cavity for filtering impurities and a sewage treatment cavity for biological purification are arranged above and below the mounting cavity respectively; a mounting box is arranged in the mounting cavity, and the side part of the mounting box is mounted in the sewage treatment tank through a connecting plate; a driving unit is arranged in the mounting box; a filter barrel mounted on the mounting box is arranged in the sewage treatment cavity; filtering holes are formed in the side wall of the filtering barrel, and the bottom of the filtering barrel is connected with the driving unit and used for driving the filtering barrel to rotate under the driving of the driving unit; a stirring assembly is arranged in the sewage treatment cavity; the driving unit is connected with the stirring assembly and is used for driving the stirring assembly to work, so that the stirring assembly stirs sewage falling into the sewage treatment cavity.
Owner:GUANGDONG YONGJI CITY OPERATION MANAGEMENT CO LTD

Low-energy-consumption removal and purification method and system for malodorous waste gas of pharmaceutical enterprise

The invention relates to the technical field of automatic liquid level control, in particular to a low-energy-consumption removal and purification method and system for malodorous waste gas of a pharmaceutical enterprise. Comprising a waste gas collection and pretreatment module; a main body purification treatment module; an energy saving and energy recovery module; according to the invention, waste gas in each link is collected through a closed gas-collecting hood and a pipe network, and mixing, temperature and humidity regulation and preliminary filtration are carried out on gas flow in a homogenization regulating tank and a pretreatment device; biological purification, photocatalysis or plasma and multi-stage purification treatment of a wet-type spraying absorption tower are adopted, and meanwhile, waste heat recovery and a self-circulation fan system are used for adjusting gas parameters; the deep purification unit is matched with activated carbon adsorption, photocatalysis or ozone oxidation and intelligent monitoring control, so that the waste gas is smoothly conveyed and stably regulated and controlled among the treatment units.
Owner:江苏瑞雨斯环保科技有限公司

Aquatic product and hydroponic plant symbiotic ecological system and method thereof

The invention discloses an aquatic product and hydroponic plant symbiotic ecological system and a method thereof, and provides the following scheme aiming at the problems that nutrient substances are easy to waste and the water aeration range is limited in the prior art: the ecological system comprises a fishpond, the fishpond is communicated with a solid-liquid separator, and the solid-liquid separator is communicated with a fermentation tank; the solid-liquid separator is communicated with a water treatment tank, an aeration pipe is bolted in the water treatment tank, biochemical balls are placed in the water treatment tank, the water outlet end of the water treatment tank is communicated with a biological purification reactor and a transfer tank, the water outlet end of the transfer tank is communicated with a water culture tray, and the water culture tray is communicated with a water storage tank. Waste generated in the fish culture process can be comprehensively utilized, resources are fully utilized, bubbles are cut, more oxygen is dissolved in water, the concentration of dissolved oxygen in water is increased, water at all positions can be aerated through the circulation mechanism, and the dissolved oxygen at all positions in the water is more uniform.
Owner:NANJING INSTITUTE OF FISHERY SCIENCES (NANJING AQUATIC TECHNOLOGY PROMOTION STATION NANJING AQUATIC ANIMAL DISEASE PREVENTION & CONTROL CENTER)

Biological deportation device

1. Name of the product in this design: Biological decontamination device. 2. Purpose of this design: To repel harmful organisms. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:冉奉

A multi-stage synergistic ecological water purification system

The utility model discloses a multistage coordinated ecological water quality purification system belongs to water quality purification technical field, including the intercept module, denitrification and phosphorus removal module and drop water type biological purification module of setting in the ditch, the intercept module, denitrification and phosphorus removal module and drop water type biological purification module are arranged in proper order according to the water flow direction, the intercept module includes the grating structure, and the cross section of grating structure is adapted with the ditch cross section, denitrification and phosphorus removal module includes the bottom mud capture well and denitrification and phosphorus removal unit, and denitrification and phosphorus removal unit installs in the bottom mud capture well, and the bottom mud capture well sinks below the ditch bottom, drop water type biological purification module includes a plurality of height gradient drop water unit that drops along the water flow direction. The utility model discloses drop water type biological purification module forms the continuous water curtain through multistage drop water unit, and the turbulent aeration effect is strengthened, need not aeration equipment, and energy consumption reduces.
Owner:ANHUI ENVIRONMENTAL TECH GRP CO LTD +1

Microbial decontamination capacity test chamber

The utility model discloses a kind of microbial purification capacity test test cabin, comprising: cabin, cabin has cabin door and is used for injecting microorganism microbial sample inlet, to be detected purification sample can pass through cabin door in and out cabin and can carry out microbial purification to air in cabin;Sensor is set in cabin, sensor can detect temperature and humidity in cabin;Temperature regulating assembly, temperature regulating assembly can adjust temperature in cabin;Humidity regulating assembly, humidity regulating assembly can adjust humidity in cabin;Microorganism injection assembly, the output end of microorganism injection assembly is communicated with microbial sample inlet and is used for injecting microorganism in cabin;Microorganism collection detection assembly, microorganism collection detection assembly can detect the content of microorganism in cabin.The above-mentioned microbial purification capacity test test cabin, the detection of the purification effect of to-be-detected purification sample is convenient.
Owner:MEICHAO GROUP

MVR (mechanical vapor recompression) evaporation system for ammonium sulfate wastewater treatment

The invention discloses an ammonium sulfate wastewater treatment MVR evaporation system which comprises a first shell and a biological purification assembly matched with a first cylinder, the first cylinder is integrally formed in the first shell, and a plurality of evenly-distributed first through holes are formed in the side wall of the first cylinder; the first barrel is provided with a filtering structure matched with the first through hole, a first cavity is formed between the first shell and the first barrel, the biological purification assembly comprises a second sealing cover, the upper end of the second sealing cover is fixedly connected with a support, and the support is fixedly connected with a second motor; a first threaded rod matched with the third cavity is mounted on the third connecting rod, and a biological carrier is detachably mounted on the first threaded rod. Compared with the prior art, the MVR evaporation system has the advantages that the labor cost can be saved, products of the biological purification assembly can be used in a purification tank, secondary utilization of resources is realized, sustainable development and environmental protection requirements are met, and stable operation of the MVR evaporation system is guaranteed.
Owner:江苏龙恒新能源有限公司

Algal-bacterial symbiotic device and application thereof in purifying air in closed space

This invention discloses an algae-bacterial symbiosis device and its application in purifying air in enclosed spaces. The algae-bacterial symbiosis device provided by this invention can not only purify odorous gases containing VOCs using microorganisms, but also fix CO2, the metabolic end product of odorous gases, through algal photosynthesis, while simultaneously treating CO2 generated by human activities. It purifies the air and provides sufficient oxygen, serving as a source of indoor air. The algae-bacterial symbiosis device operates at normal temperature and pressure, requiring only electrical energy input and no additional energy consumption (such as fuel), resulting in significant economic benefits and low-carbon characteristics. Furthermore, the device does not produce secondary pollution; the purified indoor air can be reused indoors, and the nutrient solution required for algae growth and metabolism can be recycled without external discharge. This algae-bacterial symbiosis device enables air circulation within enclosed spaces and features small size and high purification efficiency.
Owner:ZHEJIANG UNIV OF TECH

A biological purification device for sweater production wastewater

The application relates to the technical field of wastewater treatment, in particular to a biological purification device for sweater production wastewater, which comprises an aeration tank, the inside of the aeration tank is provided with a liquid level sensor, suction pipes are arranged on the two sides of the aeration tank, fixed plates are fixedly connected in the suction pipes, double-shaft motors are fixedly connected to the outer side walls of the fixed plates, transmission rods and driving rods are respectively connected to the two side output ends of the double-shaft motors, and a filtering and humidifying mechanism is arranged. When the suction fan sucks air, the air is filtered and humidified first, the filtered and humidified air is introduced into the aeration tank, the aeration device is not blocked due to impurities in the air, and the air density is reduced by the appropriate humidification, so that the air is more easily contacted and mixed with water, the oxygen transfer efficiency is improved, the aerobic organisms in the aeration tank can more efficiently adsorb impurities, and the biological purification effect is improved.
Owner:HAIYANG JINYUAN ENTERPRISE DEV CO LTD

Biological deodorization system for sewage treatment

ActiveCN224524421UFiltrationSewage treatment
The utility model belongs to sewage treatment equipment technical field relates to a sewage treatment's biological deodorization system, including the induced draft fan unit formed by three induced draft fans, and the induced draft fan 5 import is connected with the biochemical pool or the adjusting jar, and the induced draft fan 7 export connects the exhaust chimney, the washing tower group formed by caustic washing tower and water washing tower, and the caustic washing tower is connected with the induced draft fan 5 export, and the water washing tower is connected with the induced draft fan 6 import, two parallel biological purification boxes, one end is connected with the induced draft fan 6 export, and the other end is connected with the induced draft fan 7 import, and the biological purification box is equipped with plastic filler, first biological filler section and second biological filler section in turn along the length direction in, and the plastic filler connects the pretreatment loop, and the first biological filler section connects drip filtration loop, and the second biological filler section connects filter loop, and the inside is equipped with the drainage plate below the first biological filler section. Have reliable treatment to the stench gas, ensure the advantage that the discharge is safe.
Owner:LEVIMA ADVANCED MATERIALS CORP

Biological interception and purification combined device for high-standard farmland ecological drainage ditch

ActiveCN224313353UBiological water/sewage treatmentCrop residueZoology
This utility model provides a biological interception and purification combination device for ecological drainage ditches in high-standard farmland, relating to the field of high-standard farmland. It includes a biological purification frame, columns, and guide rods. The outer surface of the columns is slidably connected to a interception groove, and the upper surface of the interception groove is hinged to a pull rod. The left and right ends of the guide rods are welded with beams, and the left and right sides of the beams are provided with through holes. A bidirectional threaded rod is rotatably connected within the through holes of the beams. The biological purification frame includes a planting cylinder and an installation support plate. The installation support plate is screwed onto the outer surface of the planting cylinder. Through the interception groove, planting cylinder, and installation support plate, the device prevents crop residues and branches from flowing into the roots of aquatic plants in the planting cylinder, thus avoiding drainage blockage. This facilitates the rapid replacement and cultivation of aquatic plants, solving the problems of drainage blockage caused by the accumulation of crop residues and branches between the roots of aquatic plants in traditional drainage ditches, as well as the inconvenience of replacing and cultivating dead aquatic plants.
Owner:滨州市滨城区三河湖镇农业综合服务中心

Composite biochar immobilized microbial filler and its application in the degradation of volatile organic pollutants

The present invention discloses a composite biochar immobilized microbial filler and its application in the degradation of volatile organic pollutants. The composite biochar immobilized microbial filler utilizes bamboo fiber, thermoplastic polyurethane, and bamboo biochar as the carrier, and is made with efficient degradation bacterial suspension for volatile organic pollutants as the active microorganism. The composite biochar immobilized microbial filler prepared by the present invention has advantages such as high surface activity, high mechanical strength, high degradation efficiency, and high microbial immobilization capacity. It enhances the adsorption and degradation ability of microorganisms towards VOCs while simultaneously improving the mechanical strength of the immobilized microbial filler, thereby addressing challenges in biological purification technology. The biochar immobilized microbial filler of this invention is used for the degradation of volatile organic pollutants, wherein the polyurethane and bamboo material are inexpensive and easily obtainable, and the preparation process is simple and efficient, offering significant economic cost advantages.
Owner:ZHEJIANG UNIV OF TECH

A sewage filtering scum treatment device

The application belongs to the field of sewage treatment, and particularly relates to a sewage filtering scum treatment device which comprises a separation assembly, a purification assembly and a power assembly, the separation assembly comprises a screw rod and a sleeve coaxially arranged, the sleeve is sleeved on the outer side of the screw rod, the purification assembly comprises activated sludge and a biological purification tank for carrying the activated sludge, and the power assembly is used for driving the screw rod to rotate; the separation assembly is sequentially divided into a grinding section, a separation section and a water distribution section along the axial direction of the screw rod, the water distribution section is submerged in the activated sludge; the end face of the sleeve close to the water distribution section is closed, the end face away from the water distribution section is a scum outlet, the side wall of the sleeve in the water distribution section is uniformly provided with water distribution holes, and the side wall in the separation section is provided with a feeding port. The application has the effects of solid-liquid separation on the scum and harmless treatment of the percolate.
Owner:SHANGCHUAN (BEIJING) EQUIP CO LTD

Method for biologically purifiying concentrated wastewater

The invention relates to the field of technologies for biologically purifying wastewater. The claimed method includes the steps of feeding raw wastewater into tanks containing activated sludge and successively providing anoxic, anaerobic and aerobic treatment conditions. Under anoxic conditions, the wastewater undergoes denitrification; under anaerobic conditions, it undergoes dephosphorization; and under aerobic conditions, it undergoes nitrification. Part of the mixed liquor is sent within a nitrate recycle stream to an anoxic tank, providing denitrification, and the remaining part is separated into purified water and activated sludge in a phase separator. The purified water is discharged, and the sludge is sent within an activated sludge recycle stream to the anoxic tank. The nitrate recycle flow rate is determined according to the formula R=(Ntot.raw-NNH4perm.) / Ntot.perm., where R is the nitrate recycle flow rate, Ntot.raw is the permissible total nitrogen concentration in the raw wastewater, Ntot.perm. is the permissible total nitrogen concentration in the purified wastewater, NNH4perm. is the permissible ammonia-nitrogen concentration in the purified wastewater. The technical result is that of purifying concentrated wastewater while reducing the number of mixed liquor recycle streams.
Owner:OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOSTYU KONSTRUKTORSKO-TEKHNOLOGICHESKOE BYURO RODNIK

Efficient intelligent deodorization equipment for sewage treatment

The utility model relates to efficient intelligent deodorization equipment for sewage treatment, which is mainly applied to odor removal in the sewage treatment process. The equipment comprises an odor collecting part, an odor purifying part, a control system part and a discharging part. The odor collecting part is composed of an on-site gas detection sensor and a high-pressure centrifugal frequency conversion fan and used for monitoring the odor concentration in real time and adjusting the air volume. The odor purification part comprises an alkali washing section, a pre-washing section and a biological purification section, and harmful components in odor are gradually removed through physical, chemical and biological degradation methods. The control system part is combined with an analysis processing system, a cloud server and a mobile phone end application, can monitor the running state of the equipment in real time, automatically adjusts working parameters, and supports remote control and management. And the emission part is used for discharging the purified gas at high altitude through a tail end emission tower, so that the environment-friendly emission standard is met.
Owner:SHANGHAI HONGWEI ENVIRONMENTAL TECH CO LTD

Purification ditch suitable for river-entering farmland

The utility model discloses a purification ditch suitable for a river-entering farmland. The purification ditch comprises a ditch main body, a physical purification module and a biological purification module, three partition wall bodies which are arranged at intervals are arranged in the ditch main body, and the inner area of the ditch main body is sequentially divided into a water inlet tank, a physical purification tank, a biological purification tank and a water outlet tank. And each partition wall body is provided with an overflowing channel. The physical purification module and the biological purification module are respectively arranged in the physical purification tank and the biological purification tank. According to the utility model, the ceramsite layer and the filler layer which are stacked from bottom to top are arranged in the physical purification tank. Meanwhile, the floating bed main body and the aquatic plants are arranged in the biological purification tank, so that the flowing water output from the riverway is purified for multiple times, and the problem of low purification rate due to short retention time of the treated sewage in the purification system is effectively avoided.
Owner:HANGZHOU INST OF ECOLOGICAL & ENVIRONMENTAL SCI (HANGZHOU URBAN ECOLOGICAL ENVIRONMENT MONITORING STATION)