863 results about "Aerobic reaction" patented technology

Ar anaerobic-aerobic reactor for preparing composit is composed of fermentor, ventilation system, stirring system, and heating system. The said fermentor has a sieve plate to divided it into thepartsand a stirring axle driven by motor. Its fermenting chamber is a sealed unit with circulating water both jacket for heating it and liquid inlet and outlet, and features that the anaerobic digestion and aerobic reaction are conduted in a single equipment.

The present invention relates to one kind of integral high concentration waste water processing apparatus. The apparatus has aerobic baffle plate reactor, water collecting settling tank, aerobic reaction tank or biological contact oxidizing tank and settling tank connected via vertical baffle plates. The unique separating structure and the plug flow mode make each reactor capable of domesticating and culturing microbe colony adaptive to the water quality and environment condition. The present invention is favorable to utilizing the activity of the anaerobic bacteria colony, raising the processing effect and stability of the system and simplifying the system structure. The present invention has small coverage area, low system cost, low power consumption and no frost crack of pipeline.

The invention refers to the anaerobic-compatible oxygen-aerobic integrated sewage treatment and the reusing equiopment. It realizes anaerobic, compatible oxygen and aerobic reaction regions in single equiopment, forms three kindso f bio-systems, finishes multiple kinds of bio-reaction course, and utilizes feed-gas power in aerobic region to realize the waterpower and mud circulation, thus at energy-conservation state realizes getting rid of organic matter, nitrogen, phosphor and so on; at the same time changes thep ast stable parameter control into variable paremter control, realizes the optimization of above processes and the auto-control system by the detecting-feedback system of on-line instrument, realizes intelligent sewage-treating process and can produce many kinds of reusing waters.

The invention discloses a method for treating ammonia containing wastewater through simultaneous nitrification and denitrification. The method comprises the following steps: firstly, cultivating denitrifying granular sludge; and secondly, using the denitrifying granular sludge to treat ammonia containing wastewater through simultaneous nitrification and denitrification. The cultivating method of the denitrifying granular sludge comprises the following steps: firstly, inoculating seed sludge in an aerobic reactor, and performing accumulation culture to the aerobic sludge with high ammonia-nitrogen and low chemical oxygen demand (COD) wastewater; secondly, separating and screening aerobic denitrifying bacteria to perform domestication and cultivation; and thirdly, inoculating the domesticated and cultivated aerobic denitrifying bacteria in the denitrifying granular sludge to cultivate and obtain the finished denitrifying granular sludge. The invention adopts the domesticated and cultivated simultaneous nitrification and denitrification sludge treatment catalyst to treat ammonia containing wastewater, and has the characteristics of high removal rate of contaminants, low energy consumption and material consumption and the like; and nitrification and denitrification can be completed in the same reactor, and the short-range simultaneous nitrification and denitrification technology can be applied in actual wastewater treatment.

The invention relates to a treating method for energy regeneration, resource recovery and pollution free of restaurant garbage, which comprises the steps that separated liquid material is pumped into a swage concentrating pool; then the concentrated liquid material is discharged into a regulating and pretreating pool, in which methane bacteria are inoculated; the pretreated liquid material is discharged into an anaerobic fermentation pool, in which anaerobic bacteria groups are added so that methane gas is generated and the overflowing liquid material from the anaerobic fermentation pool is led to enter an aerobic aerated pool for aerobic reaction; the liquid material after the aerobic reaction is discharged into a sedimentation tank for sedimentation. In the comprehensive utilization of 'swill', the disposing method of the invention carries out anaerobic fermentation and aerobic aerated biochemical treatment to transform part of the energy in the swill into bio-energy which is then transformed into heat energy and finally into electrical energy that is connected with power grid for use. The separated solid material is smashed, dried, sterilized, dehydrated and then added with Chinese herbal medicine to be processed into Chinese herbal medicine compound feeds and fertilizers; meanwhile, the treatment of energy regeneration, resource recovery and pollution free of restaurant garbage for restaurant garbage is realized.

The invention discloses a three-stage circulation aerobic reactor, which comprises a pond body, wherein the inside of the pond body is partitioned into a conical sewage expansion area, an aerobic reaction area, an anaerobic reaction area and a sediment filtering layer from bottom to top in sequence; the upper part of the aerobic reaction area is provided with a primary gas-solid-liquid separation area; the upper part of the anaerobic reaction area is provided with a secondary gas-solid-liquid separation area; three-phase separators are respectively arranged in the primary gas-solid-liquid separation area and the secondary gas-solid-liquid separation area; a water outlet weir is arranged above the sediment filtering layer; a water outlet pipe is arranged on the water outlet weir; the top of the pond body is provided with a double-stage circular reflowing system; the double-stage circular reflowing system comprises an air-lift pipe, a gas-liquid separating tank and a lower layer reflowing pipe; an upper layer reflowing pipe is arranged between the secondary gas-liquid separation area and the sediment filtering layer; and the upper layer reflowing pipe is connected with an aeration air inlet pipe arranged above the pond body. The reactor is provided with a three-stage circular reflowing system, and has the characteristics of rapid start of flocculent sludge, high impact load resistance, low requirement on the PH value of inflow water, high particle sludge increasing speed, low energy consumption, high treating efficiency and stable water yielding quality.

The invention relates to a reactor for treatment of waste water for being subject to both anoxic/anaerobic and aerobic treatment within one single reactor volume. The anoxic/anaerobic reaction zone is separated from the aerobic reaction zone by a separator which also works as a hydrodynamic separator between the two reaction zones. The reactor makes it possible that the effluent water has a lower proportion of suspended solids and also that it produces less sludge than reactors of comparison. The reactor is further more energy efficient than prior art reactors. Several reactors according to the invention may be arranged in parallel so as for the inlet waste water may be treated in a modular way, and thus allowing the maintenance of the units to be facilitated.

The invention relates to a device for improving advanced nitrogen and phosphorus removal by step feed and a method thereof, belonging to the technical field of sewage biological treatment with biochemical method. Aiming at the defects of the prior A/O step feed technology such as that the biological phosphorus can not be synchronously removed, an UCT technology has high energy consumption and more complex operation and the like, the invention combines the UCT technology with the step feed technology, improves the nitration step of the UCT technology into the series run mode of a continuous two-stage A/O technology, and combines with the strategy of the step feeding of each segmental anoxic diacritical point so as to develop the high-efficiency nitrogen and phosphorus removal technology with the effect of denitrifying dephosphorization. A first segment is provided with an anaerobic reactor, a sedimentation tank returns mud to a hypoxia reactor at the first segment, and the hypoxia reactor is added into the return line of mixed liquor of the anaerobic reactor without nitrified liquid internal reflux facilities from an aerobic reactor to the hypoxia reactor. The invention has stable water flow quality and lower energy consumption.

The invention discloses a circulating water flushing ecological toilet and sewage treatment method thereof. The high-position water tank orderly connects to the latrine, grinder-mixer, solid and liquid separator, anaerobic reacting device, facultative reacting device, aerobic reacting device and ozone disinfection device. The ozone disinfection device connects to the high-position water tank by water pump. The invention breaks the localization that the toilet depends on the water and the ecological toilet contaminant is treated elsewhere, conquers the secondary pollution of the transporting, collecting and packing materials for ecological no water toilet, improves the efficiency of the dejection treatment in situ and innocuous treatment degree, fully applies the abundant microbe resource in the dejection.

The present invention discloses an acidic high sulfate organic wastewater treatment process and apparatus. The present invention belongs to the technical field of wastewater treatment. The specific process comprises the steps of: (1) neutralization and precipitation treatment: using lime milk to adjust PH of wastewater, and forming CaSO4 precipitation separated from the water; (2) first-stage anaerobic treatment, entering the first-stage anaerobic treatment after neutralization and precipitation treatment, introducing nitrogen into the bottom of an anaerobic reactor with stirring and blowing off, parsing H2S from an aqueous phase into a gas phase above a liquid level, introducing the H2S in the gas phase to a dry desulfurizer for desulfurization, and re-introducing the sulfur removed nitrogen into the first-stage anaerobic reactor for recycling through a blower; and (3) second-stage anaerobic treatment, introducing the sulfur removed wastewater into a second-stage anaerobic reactor to complete an anaerobic methane production reaction, and taking second-stage anaerobic effluent into an aerobic reaction tank for further processing. According to treatment process disclosed by the present invention, inhibition and toxic effects generated by the SO42- and S2- to the anaerobic biological treatment can be effectively reduced, and sewage treatment effects can be improved.

The invention discloses a method for in-situ bioremediation of pollution caused by chlorohydrocarbon of underwater, which specifically comprises a coupling process of anaerobic reductive dechlorination and aerobiotic oxydative degradation. An anaerobic reaction area and an aerobiotic reaction area are established in the front and back of a chlorohydrocarbon pollution area along the flowing direction of underwater in a zone of saturation. Poly-chlorohydrocarbon (trichloro or tetrachloro) in the anaerobic reaction area is quickly reduced and dechlorinated to low chlorohydrocarbon (monochloro or bichloro), the low chlorohydrocarbon is transferred to the aerobiotic reaction area and oxidized and degraded to products such as carbon dioxide. The anaerobic reaction area is realized by providing electron donor materials, a deoxidant and a reducer through the injection of an injection well, while the aerobiotic area is realized by aeration toward underground water.

The invention provides a cage-shaped filler type device for treating beer waste water in an anaerobic-anoxic-aerobic mode and a method for treating bear waste water by using the device. The device comprises a water storage tank, a high-mounted water tank, a lifting pump, an ABR (anaerobic baffled reaction) tank, an anoxic reaction tank, an aerobic reaction tank, a plurality of cage-shaped fillers and an aerating apparatus; the water storage tank is arranged at one side of the ABR tank; the lifting pump is arranged in the water storage tank; the high-mounted water tank is arranged above the water storage tank; the high-mounted water tank is connected with a water inlet of the ABR tank by a pipeline; the anoxic reaction tank is arranged at one side of the ABR tank; the aerobic reaction tank is arranged at one side of the anoxic reaction tank; the anoxic reaction tank and the aerobic reaction tank are connected by an overflow pipe; and the cage-shaped fillers are arranged in the ABR tank, the anoxic reaction tank and the aerobic reaction tank. By using the method for treating beer waste water by using the device, high COD (chemical oxygen demand) removing rate, SS (suspended solid) removing rate and ammonia nitrogen removing rate and excellent impact-resistant loading ability are achieved; in addition, the whole device is simple in structure, low in treating and building costs, convenient to manufacture and beneficial to the waste water treatment of breweries in different scales.

The invention relates to a method for processing high-density PVA-containing desinzing wastewater and a device thereof. The device comprises a wastewater regulating tank, a coagulation sedimentation tank, a salting-out tank, an advanced oxidation reaction sedimentation tank, a diaphragm type hypoxic-anaerobic reaction tank, an aerobic tank, and a secondary sedimentation tank; the coagulation sedimentation tank, the salting-out tank, and the advanced oxidation reaction sedimentation tank all comprise a mixing and stirring area and a sedimentation area, the diaphragm type hypoxic-anaerobic reaction tank comprises a facultative segment, an anoxic segment, and an anaerobic segment which are formed by separating the diaphragm type hypoxic-anaerobic reaction tank with baffle plates; the water volume and pH value of waste water are adjusted in the wastewater regulating tank, then the wastewater enters the coagulation sedimentation tank and is mixed with a coagulation agent to carry out reactions, then wastewater enters the salting-out tank to carry out a salting-out reaction, the pollutant is oxidized and decomposed in the advanced oxidation reaction sedimentation tank, then wastewater enters the diaphragm type hypoxic-anaerobic reaction tank and the aerobic tank to carry out hypoxic, anaerobic and aerobic reactions, then the waste water is subjected to a sedimentation treatment, and finally the wastewater is discharged when the quality of the wastewater meets standards. The device has the advantages of simple structure, low manufacture cost, and very good processing effect.

The invention provides an organic wastewater treatment device coupled with a low-energy-consumption membrane biological reactor of a microbial fuel cell and belongs to the technical field of recycling organic wastewater resources. The invention aims to solve problems that the microbial fuel cell (MFC) is poor in outlet water quality, the membrane biological reactor (MBR) is high in energy consumption and membrane pollution is serious; according to the device disclosed by the invention, a cell body, an MFC anode and a guide plate form an anode chamber which is an anaerobic reaction region; the guide plate, the MBR membrane assembly (also an MFC cathode) and an aerator pipe form a cathode chamber which is an aerobic reaction region; the guide plate region is an anoxic reaction region; meanwhile, a baffle plate is adopted to replace a proton exchange membrane in the MFC, so that system denitrification effect is good, and construction cost is low; compared with the conventional MBR system, the organic wastewater treatment device has the advantages that energy consumption of treatment of one ton of wastewater is lowered by 30%-70%, and outlet water quality reaches grade A in pollution discharge standards (GB18918-002) of a municipal sewage treatment plant in China.

The invention discloses an aerobic repairing system and a repairing method of a solid waste area. The system comprises a gas injection air extractor, a liquid injection liquid extraction device, a detection device, a control device, a gas injection well, a gas extraction well, a liquid injection well, a liquid injection tube, a liquid extraction well and a detection well and the like, wherein the gas injection well, the gas extraction well, the liquid injection well, the liquid injection tube, the liquid extraction well and the detection well are connected with the gas injection air extractor, the liquid injection liquid extraction device, the detection device and the control device and arranged in the solid waste area. According to the invention, a method for comprehensively adjusting and controlling the operational parameters, such as gas injection amount, gas extraction amount, liquid injection amount, liquid extraction amount, temperature and humidity and the like is adopted, thus an aerobic reaction in the solid waste area is ensured to be carried out at an optimum condition, the organic matters and pollutants in the solid waste area are transferred, absorbed, degraded or transformed, and the contents and concentrations of the organic matters and pollutants are lowered to an acceptable level, thereby realizing the target of comprehensive ecological improvement.

The invention discloses a control method and a control method for treating sludge digestion liquid through sludge-fermentation-coupled denitrification, and belongs to the technical fields of high-ammonia-nitrogenous wastewater treatment and primary sludge biochemical treatment. The device is provided with a raw water tank, a sludge-fermentation-coupled denitrification reactor, a sedimentation tank and a sludge storage tank; and through oxide resume power (ORP)/pH sensors arranged in an aerobic reaction area and a fermentation-coupled denitrification reaction area, the aeration amount supply, the effluent backflow ratio and the dosing frequency and quality of primary sludge are optimally controlled. The invention is suitable for optimally controlling the treatment of the sludge digestion liquid by dosing the primary sludge serving as a denitrification carbon source, and can save carbon sources and improve denitrification efficiency. In addition, the control strategy has the advantages of simple operation and obvious effect.

The invention provides a dye waste water treatment system which sequentially comprises a physico-chemical pretreatment system, an anaerobic tank, an aerobic tank and an advanced oxidation treatment system; dye waste water to be treated firstly enters into the physico-chemical pretreatment system to remove part chromaticity, sulphate and COD in the dye waste water, so as to ensure the pH, the alkalinity and the proper sulfate concentration which are needed by high-efficiency and stable running of later stage of anaerobic technique; after that, the dye waste water enters into the anaerobic tankto have anaerobic reaction and then enters the aerobic tank to have aerobic reaction; finally, the dye waste water enters into the advanced oxidation treatment system to remove the residual chromaticity and organic matter hard to degraded in the aerobic effluent as well as intermediate metabolite generated in the process of biological treatment. When being used for treating the dye waste water, especially the waste water having high salinity, sulfate, chromaticity and COD as well as higher concentration organic matter hard to degraded, the combined system has good treating effect and ensures the finally yielding water to reach the first-grade standard in GB4287-92 pollutant emission standards for textile dyeing and finishing industry.

The present invention relates to an improved MUCT process and equipment, belonging to the field of sausage treatment technology. It is characterized by that the aerobic reactor is divided into two stages, between two aerobic reactors a deoxygenation reactor is set,and every aerobic reactor is equipped with an independent gas flow controller. In first aerobic tank it can control low dissolved oxygen to implement short range nitrification and make ammoniac nitrogen be oxidated into nitrite, in second aerobic tank it applies high dissolved oxygen to ensure that the residual nitrite can be oxidated into nitrate. Said equipment also includes a second an aerobic reactor. Besides, said invention also provides the concrete function and action of the deoxygenation reactor and said second anaerobic reactor.

The invention provides a preparation method of heterogeneous bacteria embedding particles. The carrier particles can be used for embedding anaerobic bacteria in a load proportion of (1 to 2)-(1 to 3) (the weight of the bacteria to the weight of the embedding agent) and then embedding aerobic bacteria in a load proportion of (1 to 1.5)-(1 to 3) (the weight of the bacteria to the weight of the embedding agent). At 0-4 DEG C, the small particles are extruded into the solutions, such as CaCl2, acetic acid and glutaraldehyde, to be crosslinked, thus obtaining immobilized particles. Anaerobic environments are obtained inside the particles through microbial action to smoothly carry out microbial anaerobic reaction, and microbial aerobic reaction can be smoothly carried out as the particles have larger external hole and channel structures and are used for embedding aerobic microbes; therefore the composite particles can be used for carrying out anaerobic/aerobic reactions simultaneously and have better nitrogen and phosphorus removal effects. By utilizing the composite embedding particles, the wastewater treatment efficiency can be improved, the equipment volume can be reduced, the wastewater treatment process can be optimized and the microbial immobilization technology is expanded.

The invention relates to a wastewater advanced treatment system for corn processing. The wastewater advanced treatment system comprises a wastewater adjustment tank, an enhanced air flotation tank, an ozonation sedimentation tank, a baffled anoxic/anaerobic reaction tank, a completely mixed aerobic tank, a secondary sedimentation tank and a multilayer aerobic activity filtration tower, wherein the enhanced air flotation tank comprises a mud and sand area, a mixing area and a separation area from bottom to top; the ozonation sedimentation tank comprises an aeration mixing area and a sedimentation area; the baffled anoxic/anaerobic reaction tank is divided by baffles into a facultative section, an anoxic section and an anaerobic section; a water inlet pipe, a water distribution cone and an aeration adjustment and control system are arranged in the completely mixed aerobic tank; wastewater enters the wastewater adjustment tank, and the adjusted wastewater enters into the enhanced air flotation tank for scum removing; the wastewater without scum enters the ozonation sedimentation tank for pollutant oxygenolysis; the wastewater subjected to pollutant oxygenolysis enters the baffled anoxic/anaerobic reaction tank and the completely mixed aerobic tank for anoxic, anaerobic and aerobic reactions; the wastewater subjected to the anoxic, anaerobic and aerobic reactions enters the multilayer aerobic activity filtration tower for filtration, and then the filtered wastewater can be recycled.

The invention relates to a short-range denitrification in-phase denitrification dephosphorization process and a device thereof and pertains to the technical field of sewage treatment. The flow of the process is anaerobic process, aerobic process, hypoxia, rapid aeration and sedimentation tank. Divided-flow water inlet is adopted, a part of raw water enters an anaerobic reactor and a part enters a first aerobic reactor. A part of water outlet of the anaerobic reactor enters the first aerobic reactor, and a part enters a first hypoxia reactor. A rapid aeration tank is arranged behind a hypoxia reactor, and the water outlet enters the sedimentation tank. By controlling the way of water inlet and the concentration of dissolved oxygen in the aerobic reactor, the process can finish short-rang nitration denitrification in the aerobic reactor under the condition of normal temperature, accumulation of nitrite can be realized, denitrification dephosphorization that nitrite is electron acceptor is finished in the hypoxia reactor. The process can realize short-range nitration and denitrification dephosphorization that nitrite is electron acceptor under the condition of normal temperature and maximally realize energy saving and consumption reduction of sewage treatment.

The invention relates to an improved process for activated sludge and biomembrane composite A<2>O. The improved process consists of three stages of processes, i.e. an anaerobic stage, an anoxic stage and an aerobic stage, and is characterized in that a ciliary biological packing material is added in an aerobic reactor; an ultrasonic treatment device is adopted to carry out cavitated decomposition for residual sludge inside a secondary settling tank so as to form organic substance with liquid solubility; moreover, the sludge is returned to the front end of an anoxic reactor. The improved process adopts the ciliary biological packing material to fix a great amount of nitrifying bacteria of long generation reproduction time, thereby improving the speed of nitration reaction and reducing the influence on nitrifying flora caused by sludge age change; the ultrasonic treatment device is adopted to treat residual sludge, thereby making use of efficient useful substances contained in the residual sludge; meanwhile, the improved process solves the problem of insufficient carbon source during A<2>O technological process, and maintains better denitrogenation and dephosphorization effects for an A<2>O technological system at the same time.

The invention discloses a sewage treating device with a multiple water inlet point multi-grade bioflim reactor. N pieces of separating plates are vertically arranged inside a tank to divide the tank into N+1 reaction pools in series. The adjacent reaction pools are orderly communicated with the lower part to the upper part, wherein, the first N-1 grades are functioned with anaerobic and aerobic reaction alternately, every pool is provided with flexible assembled fillers; the N grad is the aerobic reaction area with flexible assembled filler, and the N+1 grad is the filtering and depositing area; a water inlet pipe is arranged at the top of the tank and is respectively communicated with the water inlet of the first N-1 grades, applying a water supply with multiple points; a water outlet pipe is led out of the upper part of the N+1 grade reaction pool; the bottom parts of the first N grade reaction pools are provided with an underwater aeration device, and the bottom part of the N+1 grade reaction pool is provided with a backwashing pipe. The bottom part of every pool is provided with a sludge discharge pipe. The treatment device has the advantages of great impact loading resistant ability, high treatment efficiency, low operation energy consumption, less left sludge, simple procedure, small land occupation, low investment and convenient operation.

The invention relates to a purifying art for a water system in a landscape park. Surface water is delivered through a sand basin (3) and then to an oxidation pond (4) with filler, the water then flows into an artificial swamp (1), and the water which flows out of the artificial swamp is regulated and deposited by a stabilizing pond (5), finally the water flows into the water pond of the landscape park; the water is pumped into a stream swamp (2) of the park by a pumping device (6), the water in the stream swamp is pumped to a mudflat swamp (7), thus the water in the mudflat swamp can automatically flow back to the water pond of the landscape park; the domestic sewage in the landscape park is treated in the biomass energy transforming center and then is delivered into the oxidation pond (4) with filler. The biomass energy transformation includes the procedures of adjusting, oil separation, anaerobic reaction, aerobic reaction and depositing; the biomass energy transformation is mixed with the common domestic sewage after two grades of anaerobic reactions. The invention can assure the water quality in the landscape park to be equal to or better than the water quality for entertainment in the landscape park; the treatment procedure can protect environment, thereby providing satisfactory water source for an artificial lake as well as effectively treating the waste; and the invention can provide the needed energy for the whole treatment system and have great social and economic benefits.