68results about How to "Increased resistance to shock loads" patented technology

The invention provides equipment and a method for treating nondegradable wastewater by utilizing catalytic oxidation of ozone. The equipment comprises a feeding system, an ozone catalytic reaction tower and a spray absorbing tower; the feeding system comprises a wastewater pH regulation device, a wastewater feeding pipeline, a hydrogen peroxide aqueous solution feeding pipeline, an ozone feeding pipeline and a pH regulator feeding pipeline; the wastewater pH regulation device is communicated with the wastewater feeding pipeline and the pH regulator feeding pipeline respectively; the ozone feeding pipeline is communicated with the wastewater feeding pipeline; the ozone catalytic reaction tower is communicated with the wastewater feeding pipeline and the hydrogen peroxide aqueous solution feeding pipeline respectively so that wastewater undergoes once catalytic reaction in the presence of a first catalyst to generate a liquid flow and an ozone tail gas flow which are subjected to initial treatment; and the spray absorbing tower is communicated with a catalytic reaction system, is used for spraying at least one part of the liquid flow which is subjected to the initial treatment, and is contacted with the ozone tail gas flow in the presence of a second catalyst to undergo second catalytic reaction.

The invention discloses a desulfurized wastewater treatment process. Firstly, NaOH or lime milk is added into the acidic desulfurized wastewater so as to adjust the pH value to be 8 to 9; then, the desulfurized wastewater is pumped into an electric flocculation treatment device by a pumpp, effluent after electric flocculation treatment enters an inclined pipe settling tank so as to be further treated, and then the treated wastewater reaching the standard is discharged or reused. The scruff discharged by the electric flocculation treatment device and the settled sludge discharged by the inclined pipe settling tank enter a sludge thickening tank so as to be further concentrated; the concentrated sludge is pumped into a sludge dewatering machine so as to be dried; and the dried sludge is shipped out for disposal, and the supernatant in the thickening tank and the filter-press fluid in the dewatering machine flow back to a regulating reservoir. The treatment process is characterized by simple flow and good treatment effect.

The invention relates to a pharmaceutical chemical wastewater treatment device and a treatment method thereof. The treatment device comprises a vertical flow type coagulative precipitation tank, a catalysis zero valence bimetallic packing tower, a Fenton-like reactor, an anaerobic MBBR (Moving Bed Biofilm Reactor) pool, an aerobiotic MBBR pool and a solid-liquid seperation system which are sequentially connected. The treatment method is a catalysis zero valence bimetallic- Fenton-like-MBBR coupling treatment method. The treatment device has the advantages of being capable of simultaneously treating multiple organic pollutants, occupying a small area and being simple in structure and easy for finalization and industrialization. The catalysis zero valence bimetallic packing tower enables the performance of reducing and treating degradation-resistant organic matters to be stronger, does not harden after running for long-term and is suitable for a wide pH value range and low in operating cost, and the consumption of metallic iron is little. The Fenton-like reactor is faster in oxidation reaction rate and suitable for the wide pH value range. The pharmaceutical chemical wastewater treated by the wastewater treatment method provided by the invention can reach the new emission standard of wastewater in a pharmaceutical chemical industry.

The invention provides a method for hanging a membrane in a sludge internal circulation biological filter. The method comprises the following steps: mixing acclimated sludge and wastewater, adding nutrition, and injecting into the biological filter for aeration; at the same time, stepwise starting internal circulation from bottom to top along the height direction of the filter, and making microorganisms fully contacted with a filter material and attached to the filter material for growth; after a period of culture, discharging mixed liquor, adding high concentration wastewater to continue aeration culture, and exciting the activity of the attached microorganisms; and after a membrane is formed, discharging the high concentration wastewater, continuously introducing water, and making the hydraulic load from low to high until forming a stable biological membrane. The method utilizes current disturbance action formed by the internal circulation of the sludge and water mixed liquor in the biological filter to overcome sludge deposition, strengthens the adhesive ability of the microorganisms on the surface of the filter material, improves local membrane hanging effect, and improves the whole membrane hanging efficiency of the filter and the shock load resistance of the biological membrane.

The invention relates to a rapid film forming method of an efficient denitrifying microbial agent. According to the rapid film forming method, a biological filler is added into an aerobic nitrification reactor, and active sludge is inoculated into the aerobic nitrification reactor; artificial simulated wastewater is added every 1-2 days, the temperature, the dissolved oxygen and the pH value of the reactor are controlled, and high-concentration microorganisms enter the aerobic nitrification reactor from the top portion through an external circulation pipeline and form a solid-liquid flow from top to bottom in the biological filler area; and gas bubbles formed through micro-pore aeration form a gas-stage flow from bottom to top in the biological filler area, the three materials are completely mixed in the biological filler area to form a fluidized state, and the denitrifying microorganisms are attached on the surface of the biological filler or grow to gradually form the microbial aggregate. With the method of the present invention, the defects of long time consumption, poor adhesion, complex operation, low biomass and poor impact load resistance of the film forming of the denitrifying microorganisms can be completely solved, the attachment of the nitrifying bacteria can be improved, the film forming is fast, and the resistance to the external environment change and the impact load resistance can be enhanced.

The invention belongs to the technical field of drinking water and sewage treatment, and specifically relates to a water treatment method and equipment of a photocatalytic composite membrane bioreactor for removing micro pollutants out of water. The process mainly consists of an aeration tank and other auxiliary devices. Sewage containing micro pollutants enters the aeration tank. An ultraviolet lamp tube loaded with a titanium dioxide catalyst is vertically distributed at the center in the tank, and the outer layer of the lamp tube is encircled by a membrane assembly and a biological membrane carrier mainly loaded with nitrifying bacteria in sequence. One part of micro pollutants in the sewage are removed by virtue of ultraviolet photo-catalysis, the biological membrane and ammonia nitrogen-containing wastewater generate nitration reaction to remove ammoniacal nitrogen, and in the nitration process, the biological membrane generates co-metabolism with the micro pollutants to further remove the pollutants. The process can have stable and efficient removing effect on various micro pollutants under a low-concentration organic carbon source condition.

The present invention relates to an ultrasonic atomization treatment process of electric power plant desulfurization wastewater. According to the process, desulfurization wastewater is conveyed into a pH value adjusting pool; one or a plurality of materials selected from lime, limestone, sodium hydroxide and sodium carbonate are added to the pH value adjusting pool so as to produce partial heavy metal hydroxides and self-flow into a reaction pool; an organic sulfide is added to produce precipitates such as mercury sulfide and copper sulfide, and the precipitates self-flow into a flocculation pool; an iron salt, a polymer flocculant, and a coagulant are added to condense suspended solid particles dispersed in the wastewater and partial COD into the centralized floc; the clear water of the flocculation precipitation pool overflows into a final oxidation neutralization box from the upper portion, an oxidizing agent and a neutralizing agent are poured by using an ultrasonic atomization manner, and the COD in the water is completely oxidized in an atomizing state; and the sludge is subjected to dewatering utilization, and the sewage discharge meets the standard. According to the present invention, the process is simple, and the contaminant removal effect is good.

The invention discloses a wavy subsurface-flow constructed wetland landscape water body treatment system and method. The system combines a horizontal subsurface-flow constructed wetland with a vertical subsurface-flow constructed wetland to form a wavy subsurface-flow constructed wetland. By means of regularly arranging upper clapboards and lower clapboards inside the wetland and replacing a horizontal flow state with a wavy flow state, sludge flows in a plurality of modes which are connected in series and alternate in upstream and downstream flows, so that organic nutrient substances are sufficiently degraded to remarkably promote deposition of phosphorus; the sludge is repeatedly subjected to anaerobic and aerobic treatment, so that removing of nitrogen can be facilitated; appropriate limestone is added into the filler of the wetland to release Ca<2+>, so that phosphorus in the sludge generates insoluble deposition of calcium phosphate, and thus the removal rate of phosphorus is increased. Due to the adoption of modes, such as intermittent water distribution, water inflow to a water distribution pipe by forming openings in the bottom as well as serial or parallel operation of a plurality of wavy subsurface-flow constructed wetlands, the bed body of the constructed wetland plays a relatively large efficiency, the removal rate of nitrogen phosphorus and organic matters is increased and the sludge treatment capability is enhanced.

The invention discloses a kitchen waste (food waste) treatment method which is used for fine treatment and anaerobic digestion of the kitchen waste (food waste). The method mainly comprises three major steps of: enzymolysis pretreatment, solid-solution separation and anaerobic fermentation, wherein the steps are connected through plate chain machines and helixes or pipelines. The major innovationpoint is that an enzymolysis process is added in a kitchen waste (food waste) pretreatment process, and the enzymolysis process can promote hydrolysis of proteins in the crushed kitchen waste (food waste), so that a utilization rate of organic substances and a biogas yield at an anaerobic digestion stage are increased; meanwhile, the method realizes efficient separation of dry and wet materials through a high-pressure extruding mode, and is complete in solid-liquid separation; and moreover, pressure is set for quickly separating out organic substance slurry from the kitchen waste (food waste),so that the separating effect is good, and therefore, the kitchen waste (food waste) treatment method can be widely applied to the kitchen waste (food waste) treatment field.

The invention provides a porous light-weight carbon-based biological carrier. The porous light-weight carbon-based biological carrier is a foamed coke powder / polyvinyl alcohol gel mixture which is prepared by performing crosslinking reaction on coke powder, a polyvinyl alcohol solution, a foaming agent solution and a crosslinking agent solution used as raw materials at normal temperature, wherein the weight percent concentration of the polyvinyl alcohol solution is 5-15%; the weight percent concentration of the foaming agent solution is 0.2-2%; the weight percent concentration of the crosslinking agent solution is 0.5-1.5%; the weight ratio of the polyvinyl alcohol water solution to the coke powder is (10-25):1; the weight ratio of the polyvinyl alcohol water solution to the foaming agent solution is (15-45):1; and the weight ratio of the polyvinyl alcohol water solution to the crosslinking agent solution is (20-50):1. The biological carrier is high in film-forming speed and microbial capacity, provides a proper nutrient source for microorganisms and has no harm to the environment. Meanwhile, the invention also provides a preparation method of the porous light-weight carbon-based biological carrier. The preparation method has the advantages of simple process, less required equipment and low preparation cost.

The invention relates to a combination biodegradation and adsorption separation exhaust gas treatment device, comprising a bioreactor and an adsorption separation cleaner, which form the gas purifying unit, wherein, a gas inlet with a perforated pipe is arranged on one side wall of the lower part of the bioreactor, and a gas outlet pipe is arranged on the side wall of the upper part of the bioreactor; another side wall of the lower part of the bioreactor is arranged with a water outlet higher than the gas inlet, and side wall of the upper part is provided with a spray liquid inlet and another perforated pipe; the bioreactor is filled with filling, and the gas outlet pipe is connected to the adsorption separation cleaner; the adsorbent is provided inside the adsorption separation cleaner, and the gas passes through the absorbent from bottom to top via a gas inlet on the lower part of the adsorption separation cleaner and a gas outlet pipe on the upper part of the adsorption separation cleaner. The pollutant in the exhaust gas can be efficiently removed in the invention by combination of biotechnology and adsorption technology, wherein, slowly-biodegradable matters are adsorbed and enriched on the adsorbent, thereby improving purifying effect of the exhaust gas and reducing the volume of the bioreactor.

The invention discloses a staged hard ecological drainage channel for a farmland. After an original hard drainage channel is mounted, a local migration path of one part of drained water in the channelis changed by virtue of diversion, reversal flow, turbulence and the like, and retention time is prolonged. Moreover, due to filtration, adsorption, absorption and degradation effects of packing substrates, plants, microbes and the like, drainage pollutants are preliminarily intercepted and purified, drained water with small flow and high pollution degree is subjected to staged interception and purification according to a hydraulic engineering design of a standardized farmland on premise of not influencing normal hydraulic engineering requirements, the hard drainage channel is subjected to ecological reconstruction, and the content of pollutants in the drainage channel is reduced, so that the interception and purification effects of the original channel on farmland drainage are improved.Moreover, the whole staged hard ecological drainage channel for the farmland is simple in design, the original hard drainage channel is reconstructed into a linear wetland system with environmental benefits and ecological benefits, farmland drainage pollutants can be effectively treated, and impact load resistance of a regional field parcel non-point source pollution control system is improved.

The invention belongs to the technical field of water treatments, and particularly relates to a denitrification purification method for wastewater containing high concentration nitrate ions. The method comprises that denitrification bacterial adopts a carbon source as an electron donor in an anoxic tank filled with nitrate-containing wastewater to convert nitrate ions into nitrogen gas and concurrently produce a large amount of alkalinity, wherein the anoxic tank comprises a first-segment anoxic tank and a second-segment anoxic tank, effluent of the first-segment anoxic tank enters the second-segment anoxic tank, and an acid regulation agent is poured at the front end of the second-segment anoxic tank to adjust the system to achieve weak alkality. According to the technical scheme, the acid regulation agent is poured at the front end of the second-segment anoxic tank to control alkality of the system and easily carry out a denitrification reaction of the second-segment anoxic tank, a removal rate of the nitrate ions is substantially increased and a biochemical reaction effect in the anoxic tank is substantially improved through the second-segment anoxic tank, and drainage requirements are met.

The invention relates to a rotary-type wastewater treating device, comprising a container, wherein a rotating shaft is arranged in the container; a toothed rotating disc with the rotating shaft as the axis is arranged at one end of the rotating shaft; two groups of cylinders with the rotating shaft as the center are arranged on the rotating disc; a slit is formed on the cylinder; a driving device is arranged on the container and connected with the rotating disc through a chain; a water outlet pipe and a dredge pipe are arranged on the sidewall of the container on which the driving device is mounted; and a water inlet pipe and a blow-down pipe are arranged on the other corresponding sidewall of the container. The rotary-type wastewater treating device is capable of thoroughly stirring the wastewater, and simultaneously capable of charging oxygen; and a micro-electrolytic material can be filled in the cylinders so that electrochemical and physical treatment processes are realized and caking and blockage can be prevented.

The invention discloses an integrated shortcut nitrification / anaerobic ammoxidation reactor which comprises a reactor body, a base and a support, wherein the reactor body is fixed on the base; the inside of the reactor body is provided with a central shortcut nitrification unit and a peripheral anaerobic ammoxidation unit from the center to the periphery; the central shortcut nitrification unit is divided into a water outlet region, a reaction region and a first water inlet region from top to bottom; a first baffle with a middle grid on the bottom is arranged between both sides of the water outlet region and the peripheral anaerobic ammoxidation unit; the first baffle is fixed on the reactor body; and the peripheral anaerobic ammoxidation unit is divided into a second water inlet region, a first reaction region, a connection region and a second reaction region from inside to outside. According to the invention, the shortcut nitrification unit and the anaerobic ammoxidation unit can be operated independently or be used together, and coupling of two reactions can be realized in the single reactor to treat high ammonia nitrogen wastewater.

The invention relates to an integrated domestic sewage treatment device, which is suitable for integrated treatment of rural (villages and towns) domestic sewage far away from municipal drainage pipelines, and is characterized by comprising a biochemical reaction tank, wherein the biochemical reaction tank is divided into a main reaction zone and a pre-reaction zone by a division plate, the main reaction zone is communicated with the pre-reaction zone through a bottom connecting port of the division plate, the pre-reaction zone is communicated with a biological selection zone, the biological selection zone is connected with a winding shaft through a pipeline and a lifting pump, and a grizzly screen is arranged between the winding shaft and a domestic sewage inlet; a jet aeration machine, a sludge reflux pump and a decanter are arranged in the main reaction zone; and the decanter is connected with a water outlet pipe, and a sludge outlet of the sludge reflux pump is connected with a sludge tank, the biological selection zone and the pre-reaction zone respectively.

The invention discloses a miniature no-decanter SBR integrated sewage processing system. The miniature no-decanter SBR integrated sewage processing system comprises a control apparatus, an equalizing tank, a device room, a SBR reaction tank and a clean water tank; a sewage elevator pump and an aeration apparatus are arranged in the device chamber, an inlet of the sewage elevator pump is communicated with the bottom of the equalizing tank, the outlet of the sewage elevator pump is communicated with the upper part of the SBR reaction tank; the aeration apparatus is communicated with the SBR reaction tank; a center water distributor is arranged in the SBR reaction tank, the center water distributor and the water outlet of the elevator pump are communicated; an downcast pipe is arranged between the equalizing tank and the SBR reaction tank, a downcast electrically operated valve is arranged on the downcast pipe; the control apparatus is used for controlling the sewage elevator pump, the aeration apparatus and the downcast electrically operated valve. The sewage is sent to the bottom of the SBR reaction tank by the center water distributor, at the same time, the water at the upper part of the SBR reaction tank is discharged to a clean water tank, so that SBR sewage treatment of a no-decanter is realized. An integrated design of the equalizing tank, the device chamber, the SBR reaction tank and the clean water tank is employed, so that the process flow is shortened, land occupation area is small, and the construction cost is low.

The invention discloses a stacked biological denitrification sewage treatment technology and device. The sewage passes through a primary sedimentation tank and is distributed by a water distribution system to the head ends of anoxic tanks in a stacked system consisting of multiple groups of anoxic tanks and aerobic tanks in cross series connection; the sewage sequentially flows through the anoxic tanks and aerobic tanks, and finally flows into a secondary sedimentation tank from the water outlets of the last group of aerobic tanks; after sludge-water separation in the secondary sedimentation tank, the water is discharged to the water outlets; one part of the sludge flows back to the head ends of the first group of anoxic tanks through a sludge backflow system; and the remaining sludge is discharged to a sludge drying treatment system through a sludge discharge system. Through the invention, an organic carbon source in the raw sludge is sufficiently used, the backflow facility in nitrification liquid and the energy are saved, the tank capacity is reduced, and the capital construction cost is lowered; and moreover, with high denitrification efficiency, the technology and device disclosed by the invention are suitable for the newly-built and rebuilt and expanded high-ammonia nitrogen sewage and municipal sewage treatment projects, and can reduce the sludge scouring caused by peak discharge, enhance the anti-impact load ability of the system, save the capital construction and operation cost and improve the total nitrogen removal efficiency.

The invention discloses a skid-mounted water purifying device of oil producing wastewater, comprising a skid bottom plate, a water purifier and a self-washing filter, wherein the water purifier and the self-washing filter are arranged on the skid bottom plate; the water purifier comprises a water purifier shell and a top plate; the water purifier shell is internally provided with a central water distributing pipe, an inclined pipe solid-liquid separation device and a water feeding pipe; the top plate is connected with an oil scraper and a mud discharging mechanism is arranged at the bottom of the central water distributing pipe and a water inlet pipe of the water purifier is connected with the lower part of the central water distributing pipe; the top of the central water distributing pipe is connected with an oil-water separation partition plate; the oil-water separation partition plate is connected with a plurality of flow guide pipes; the lower parts of the flow guide pipes are connected with trumpet-opening-shaped water distributing pipes; the bottom of the oil scraper is connected with an oil collecting pipe and the water purifier shell is connected with an oil discharging pipe; and the water inlet pipe of the water purifier, which is connected with the self-washing filter, is connected with a water outlet pipe of the water purifier. The skid-mounted water purifying device of the oil producing wastewater disclosed by the invention has the advantages of compact structure, novel and reasonable design, strong configuration flexibility, simplicity and convenience for operation, safe, stable and reliable operation, good treatment effect on the oil producing wastewater, strong practical applicability, and high popularization and application values.

The invention discloses a system and method for treating black and odorous stagnant water, and belongs to the technical field of water restoration. The system comprises a mixing zone, an anoxic zone, an aerobic zone, a stabilizing zone, enclosures and a backflow pipeline. The enclosures include the enclosure I, the enclosure II and the enclosure III and divide a riverway into the mixing zone, the anoxic zone, the aerobic zone and the stabilizing zone in sequence in the water flow direction, the mixing zone and the anoxic zone are separated through the enclosure I, the anoxic zone and the aerobic zone are separated through the enclosure II, the aerobic zone and the stabilizing zone are separated through the enclosure III, and the stabilizing zone and the mixing zone are connected through the backflow pipeline. The stabilizing zone is used for stabilizing water quality and enabling bottom backflow liquid to flow back to the mixing zone. The system has the advantages of being strong in pollutant removal pertinence and high in removal efficiency, fully guarantees the improvement of the circulating and self-purifying capabilities of the water and the restoration of the ecological function of the water and also has the advantages of being capable of reducing investment and good in operating effect.

The invention discloses a high-energy ionized gas purifier with low ozone generating amount, belonging to the technical field of environmental pollution control. In the purifier, a filtering device isarranged at a gas inlet and used for remove particulate matter in odor and reduce the odor humidity, enhance the applicability to different exhaust gases, and pre-equalize flow of the exhaust gases;a multi-return structure of a diversion section and a honeycomb structure of an oxidation catalysis reaction section improve the mixing and reaction time and the complete purification rate; a high-energy ionizer uses dielectric glass, the excitation voltage is low, the energy consumption is reduced, and the purification is more full by using a high-energy ionization process and a photon-dissociation excitation process in sequence. The high-energy ionized gas purifier has the advantages of integrated structure, high integration degree, convenient transportation and small occupied area; with a modular structure in the purifier, maintenance and replacement are convenient, the service life is prolonged, the cost is reduced, and the purifier can be used for processing exhaust with higher concentration and large gas quantity; in the actual operation process, the increased amount of ozone is less than or equal to 0.1mg / m<3>, which effectively avoids secondary pollution caused by the large increased amount of ozone.

The invention relates to a purification method of controlling a foreign pollution source and ecologically restoring a black-odor riverway. The purification method adopts a process combining processes of pretreating sewage outlet wastewater by virtue of a biofilm purification device, planting aquatic plants in the riverway, stocking aquatic animals, installing aeration oxygen increasing equipment and the like. Compared with an existing river ecologic restoration process, the purification method can be used for effectively controlling a sewage outlet of a small size polluted riverway to be adapted to great fluctuation of the riverway water quality and the climate conditions, has strong adaptability to the water quality variation, is good in resistance to shock loading and can be used for effectively removing the phenomenon of black-odor river water as well as has a relatively good effect of removing organic carbon, nitrogen and phosphorus; According to the purification method, the treated effluent quality is stable, the engineering investment is little, the running cost is low, and the purification method is suitable for treating riverway waters with various pollutions.

The invention discloses a coking wastewater treatment composite process, which comprises an anaerobic pool, anoxic pool, an aerobic pool, a membrane pool, and a backwashing pool; specifically, it is composed of the following steps: the coking wastewater enters the anaerobic pool, and in the anaerobic pool The phosphorus accumulating bacteria release phosphorus and absorb easily degradable organic matter such as low-level fatty acids, and then enter the anoxic pool for biological denitrification through overflow, convert it into nitrogen and release it into the air, and then enter the aerobic pool for biological nitrification It is converted into nitrate, and then enters the membrane tank to suck the water out to the backwash tank and backwash the hollow fiber membrane module regularly through the metering pump. The invention adopts a composite process to treat coking wastewater, and through the organic combination of biological treatment and membrane treatment, the nitrification capacity of the treatment system is improved, and a good treatment effect is achieved for coking wastewater with a COD concentration of 2500ppm and an ammonia nitrogen concentration of 300ppm.

The invention relates to a microbial gel ball embedded with thermophilic denitrifying bacteria as well as a preparation method thereof. The microbial gel ball comprises the following components with the weight adding proportion: an embedding agent solution to a crosslinking agent to denitrifying bacteria-containing microorganisms is (3-4):(1-2):(2-3). The preparation method comprises the followingsteps: preparing the embedding agent solution, heating and melting the embedding agent solution, cooling, adding the denitrifying bacteria-containing microorganisms into the cooled embedding agent, mixing, adding the crosslinking agent dropwise to form a ball, performing cold storage until hardening, and washing out the crosslinking agent on the surface to prepare a product. The density of the microbial gel ball is increased by adding reduced iron powder and the settling performance is improved; meanwhile, chemical reaction is conducted by utilizing the reducibility of the iron powder and thedenitrification efficiency is improved. The microbial gel ball has higher activity and higher efficiency under the condition of low temperature; and the active sludge efficiency of the embedded microbial gel ball is higher than that of the non-embedded microbial gel ball with the equal biomass, and the biomass required by the embedded microbial gel ball is less than that of the non-embedded microbial gel ball under the condition of equal removing efficiency.

The invention provides a micro-electrolysis catalysis strengthening hydrolytic acidification reactor. The micro-electrolysis catalysis strengthening hydrolytic acidification reactor is characterized by comprising a water distribution and gas distribution area, a hydrolytic acidification area, a two-phase separation area and a catalysis strengthening micro-electrolysis area from the bottom up. The reactor provided by the invention is uniform in water distribution, uniform and controllable in gas distribution, unlikely to blockage and high in liquid and solid separation effect and shock load resistance, effectively improves the biodegradability of wastewater, and is suitable for treatment of recalcitrant sewage; trials show that the water inflow COD can be up to 50,000 mg / l, and the COD removal rate can reach 41%.

The invention discloses a novel UASB (Upflow Anaerobic Sludge Blanket) combined ABR (Anaerobic Baffled Reactor) granular sludge reactor and relates to the field of wastewater treatment in the brewingindustry. The novel UASB combined ABR granular sludge reactor comprises a first reaction chamber, a second reaction chamber, an ABR reaction chamber, a sludge settling zone and a gas storage chamber,wherein the first reaction chamber is positioned below the second reaction chamber; an air guide sleeve is arranged at the middle of the first reaction chamber; the first reaction chamber is a diffuser speed increasing reaction chamber; the ascending velocity of liquid in the reaction chamber is far higher than that of a traditional UASB reactor, the contact between the wastewater and microorganisms is intensified, and the reaction rate is greatly improved. The invention further discloses a method for treating the wastewater in the brewing industry by using the novel UASB combined ABR (Anaerobic Baffled Reactor) granular sludge reactor. Compared with a traditional method, the method disclosed by the invention has the advantages that the treatment time is greatly shortened, the treatment efficiency is improved, and the consumption is reduced.

The invention discloses a heparin secondary re-sedimentation device in the field of biopharmaceuticals, which includes a tank body, a mud discharge pipe, a slant plate, a water inlet pipe, a water outlet pipe, a water outlet tank, a sludge return pipe and a mud collecting bucket, and an outlet end of the water inlet pipe. Located in the center of the pool body, the water inlet end of the water inlet pipe is located above the water outlet end, and the water outlet end of the water inlet pipe is connected to a bell mouth, and a horizontally placed reflector is hung just below the bell mouth, and slant plates are installed on both sides of the bottom of the pool body The sewage return pipe is provided at the inner wall of the sloping plate adjacent to one side, and the water inlet end of the water inlet pipe is connected with the water outlet end of the sewage treatment tank arranged outside the pool body; the two sloping plates at the bottom of the pool body are surrounded by A mud collecting hopper is formed, and the mud inlet end of the sludge return pipe is inserted into the mud collecting hopper; a mud discharge port is provided at the bottom of the pool body. The invention has the advantages of simple structure, low investment cost, small floor area and good sedimentation effect, especially can effectively intercept and separate suspended solids in sewage that are not easy to sediment, and is widely applicable to various waste water treatment systems that require high effluent water quality.

The invention discloses a method for improving biofilm culturing efficiency of a biological filter for treating high-nitrate wastewater, and belongs to the technical field of wastewater treatment. Themethod comprises the following operation steps of: 1, carrying out amplification culture and high-nitrate wastewater adaptability culture on geobacterium; 2, synchronously adding the cultured geobacillus and low-concentration activated sludge into a biological filter according to an equal mass ratio, and carrying out biofilm culturing; and 3, maintaining continuous water inflow of the biologicalfilter until biofilm culturing is completed. According to the invention, the abundance and bacterial extracellular polymeric substances of the geobacillus are increased by carrying out high-nitrate adaptability culture on the geobacillus and adding the cultured geobacillus into the reactor, and the growth speed, microbial activity and viscosity of microorganisms are improved, so that the biofilm culturing efficiency of the biofilter for treating the high-nitrate wastewater is improved; and the formed biological film is firm and high in impact load resistance, and has an excellent wastewater treatment effect.

The invention discloses a staged hard ecological drainage channel for a farmland. After an original hard drainage channel is mounted, a local migration path of one part of drained water in the channelis changed by virtue of diversion, reversal flow, turbulence and the like, and retention time is prolonged. Moreover, due to filtration, adsorption, absorption and degradation effects of packing substrates, plants, microbes and the like, drainage pollutants are preliminarily intercepted and purified, drained water with small flow and high pollution degree is subjected to staged interception and purification according to a hydraulic engineering design of a standardized farmland on premise of not influencing normal hydraulic engineering requirements, the hard drainage channel is subjected to ecological reconstruction, and the content of pollutants in the drainage channel is reduced, so that the interception and purification effects of the original channel on farmland drainage are improved.Moreover, the whole staged hard ecological drainage channel for the farmland is simple in design, the original hard drainage channel is reconstructed into a linear wetland system with environmental benefits and ecological benefits, farmland drainage pollutants can be effectively treated, and impact load resistance of a regional field parcel non-point source pollution control system is improved.

The invention discloses a snail, mussel, fish and grass symbiotic purification system for ecological restoration of surface water, and relates to the technical field of surface water restoration, the snail, mussel, fish and grass symbiotic purification system is arranged in a river to be restored, and the snail, mussel, fish and grass symbiotic purification system is arranged in a three-dimensional space in the river to be restored. The snail, mussel, fish and grass symbiotic purification system comprises a fixing mechanism, a power mechanism, snails, mussels, fishes and grass. The three-dimensional spatial symbiotic purification system composed of snails, mussels, fishes and grass is constructed, and the capacity of efficiently absorbing and degrading pollutants is achieved; the three-dimensional spatialization snail, clam, fish and grass symbiotic purification system is high in stability, the impact load resistance is enhanced, and the impact of rainwater pollution load in the initial stage of the rainy season is greatly relieved; the snail, mussel, fish and grass symbiotic purification system has high removal capacity on eutrophication substances such as nitrogen and phosphorus, and water eutrophication is avoided.