290 results about "Aerobic organism" patented technology

The invention relates to an ecological greenbelt treatment process for treating rural domestic sewage, which mainly comprises the steps of: (1) anaerobic pretreatment: performing anaerobic hydrolysis pretreatment to domestic sewage; (2) artificial wetland treatment: performing artificial wetland treatment to pretreated domestic sewage; and (3) shallow ecological pond aerobic biotreatment: further performing shallow ecological pond aerobic biotreatment to outlet water treated by the artificial wetland, degrading and converting organic matters and nutrients entering the pond, and recycling purified sewage as a regenerated water resource. The invention adopts an ecological greenbelt treatment system comprising the anaerobic pretreatment, the artificial wetland and the shallow ecological pond to treat the rural domestic sewage, and has the characteristics of good treatment effect, recycling on site, low investment, low system operating cost, simple maintenance, obvious ecological benefit and the like.

The invention discloses an urban sewage treatment system and purification method and belongs to the technical field of sewage treatment. The sewage treatment and purification method comprises the steps of collection, physical precipitation, chemical precipitation, anaerobic biological treatment, anoxic biological treatment, aerobic biological treatment, adsorption, disinfection, ultrafiltration membrane filtration and sludge treatment in sequence. According to the method, a physical precipitation method, a chemical precipitation method and a biological purification method are used comprehensively to perform step-by-step classification treatment on different pollutants, the purification efficiency is high, the effluent quality is good, the nitrogen and phosphorus treatment capacity is higher, operation and maintenance are convenient, management is simple, and popularization and use can be realized.

A deeply sewage treating method and apparatus without sludge discharging is disclosed by means of the physical, chemical and biological methods. Proper sewage treating agent with powerful adsorbing capacity, organic matter decomposing and oxidizing capacity and settling capacity is selected based on the quantity of sewage and pollutant characteristic of the sewage to be treated. Sewage is treated through an integrative function tank that comprises a grille primary tank (1), a settling tank (2), high concentration aeration tank (3), aerobic biological tank (4), anaerobic sludge returning tank (5), a sludge and cleaning water separating tank (6), separating tank (7), and pouring tank (8). Sewage is subjected to physical filtering, chemical regulation of pH value, aerating, biological treatment, settling and filtering, so that organic pollutant is converted into microbe that is oxidized and decomposed into CO₂, H₂O, NH₃ and small amount of excess sludge for inside circulating treatment. The treated water reaches the draining standard.

The invention relates to a two-chambered alga microbial fuel cell and treatment wastewater method of low energy consumption thereof, belonging to the field of wastewater treatment. The invention resolves the problem that the current aerobic biological treatment process has large energy consumption and high cost because of adopting the imposed aeration. An anode chamber of two-chambered alga microbial fuel cell is connected with a cathode chamber thereof through a diaphragm; a vacuum pad is arranged on the position among the diaphragm, the anode chamber and the cathode chamber; the anode chamber is provided with an anode and the cathode chamber is provided with a cathode; the anode and the cathode are connected with an external circuit by a lead wire, wherein the external circuit is positioned outside the two-chambered alga microbial fuel cell. The method comprises the following steps: firstly, a reactor is started; secondly, the wastewater enters into the cathode chamber and the anode chamber, the microorganism degrades to metabolize organics and simultaneously gets electrical energy under the room temperature; cathode alga provides oxygen for the cathode chamber by the photosynthesis. The alga microbial fuel cell can be the main structure of wastewater and aerobic treatment, which can replace the roles of an aeration tank, a biological filter, an aeration oxidation pond and the like in a wastewater treatment factory so as to reduce the energy consumption of the aerobic biological treatment.

The invention is a pollutant aerobic-biodegradation breathing measuring method and device, relating to a method and device for measuring oxygen utilization ratio in the course of processing waste water by aerobes. And the measuring method comprises the steps of: checking dissolved oxygen sensor, keeping temperature of water tank constant, putting in microbial mixed solution, blending, circulating mixed solution, setting parameters, putting in to-be-measured sample and calculating; and the measuring device comprises water tank, magnetic blending mechanism, aeration mechanism, aeration chamber, breathing chamber, measuring chamber, pH sensor, dissolved oxygen sensor, signal transmit lines, transducer terminal box, computer and oxygen utilization ratio measuring software. And the invention has advantages of less interference, high testing accuracy and frequency, high instrument automation degree, etc. and it is applied to the aspects of city sewage composition characterization, inlet water toxicity detection, evaluation and early- warning in sewage factory, process control and operation management in sewage factory, etc.

The invention discloses a solar power nitrogen and phosphorus removal biological box array used for in-situ purification for eutrophic slow flow water body. The biological box array uses longitudinal array or other array combination, and the biological box array is composed of different functions of biological box monomers with similar shape. The biological box monomer comprises a body framework, a floating body, a photovoltaic power system, an aeration or flow pushing facility and a biological box; the biological box body is a stainless steel box body or a plastic mesh cage, and combined biological carrier is filled in the box body. The biological boxes are divided into aerobic biological boxes and anoxic biological boxes which are combined into the array in a certain mode. An aeration plate is arranged at the bottom of each aerobic box body, and the arrangement of the flow pushing facility is determined according to the water flow. The solar power nitrogen and phosphorus removal biological box array used for the in-situ purification for the eutrophic slow flow water body uses the combined biological carrier with special proportion and uses step-by-step nitrification and denitrification, the filler use ratio can be effectively improved, and accordingly the purification efficiency can be improved. The solar power nitrogen and phosphorus removal biological box array does not depend on the plant, and the disadvantage that a plant type floating island is difficult to manage is avoided. The solar power nitrogen and phosphorus removal biological box array is not limited by the power supply condition by means of using solar clean energy.

A process for treating sewage by A2N denitrifying to remove P includes pumping sewage in anaerobic pool, discharging the muddy water in medium deposition pool, discharging the supernatant in aerobic biomembrane mitrifying pool and the sludge in anoxic pool, discharging the water from said nitrifying pool to anoxic pool, discharging water from anoxic pool to high-speed aerating pool for absorbing residual P, pumping water in final deposition pool, draining the treated water, and pumping part of sludge back to anaerobic pool.

The invention discloses a traditional Chinese medicine extraction wastewater treatment system. According to the invention, a ''pretreatment+hydrolytic acidification+anaerobic treatment+aerobic treatment+Fenton treatment'' combined biological treatment process is adopted. The anaerobic biological treatment process has advantages of low energy consumption, high removal rate and effluent stability. The aerobic biological treatment process has advantages of low investment, mature technology, high efficiency and stable and reliable treatment effect. The system provided by the invention comprises a pretreatment unit, a hydrolytic acidification unit, an anaerobic treatment unit, an aerobic treatment unit and a Fenton treatment unit which are connected in order. The pretreatment unit comprises an equalizing tank I and an equalizing tank II which are connected in series. The hydrolytic acidification unit is a hydrolytic acidification tank. The anaerobic treatment unit is a high-efficiency anaerobic reactor. The aerobic treatment unit is a bio-contact oxidation tank. The Fenton treatment unit is a Fenton reaction tank. A secondary sedimentation tank is arranged between the bio-contact oxidation tank and the Fenton reaction tank which communicates with a clean water tank through an air floatation machine.

This invention relates to a non-chemical device for repelling flies from a building entrance or outside area. The device repels flies from such environments using the prismatic effect of ambient light passing through the clear rigid housing of the device, through the fluid contained within, and reflecting off a reflective element within the fluid. The device may be constructed such that a vacuum is created within the housing in order to prevent the growth of aerobic organisms within the device.

The invention relates to an oxygen releasing material for permeable reactive barrier aerobic biodegradation of groundwater, which comprises the following components in percentage by weight: 5-20% of oxygen releasing compound, 5-20% of bentonite and the balance of coagulant. The oxygen releasing material added with the bentonite has the advantages of large oxygen releasing amount, long oxygen releasing time, low cost and easy preparation; and moreover, the used materials are all natural and easy to obtain and do not cause secondary pollution to the groundwater environment, thereby remarkably improving the in situ bioremediation technology of the contaminated groundwater.

The invention relates to a method and a device for sewage treatment, and relates to the field of waste water treatment. The invention aims to improve a denitrification effect of secondary effluent of a sewage treatment plant and reduce operating energy consumption. The method comprises the following steps of: introducing sewage into an ozone catalytic oxidation tower to perform catalytic oxidation; introducing water discharged from the ozone catalytic oxidation tower into an anoxia biofilter; and introducing the water treated by the anoxia biofilter into an aerobic biofilter, wherein the injected water is subjected to the degradation of concentration of organic matters and the nitration of ammonia nitrogen by a biomembrane grown on the surface of a porous light filler inside the aerobic biofilter, so that the concentration of the organic matters in the water reaches an effluent discharge index. The invention also provides a device for realizing the method. The device comprises two biofilters, a high-pressure fan and an ozone catalytic oxidation tower. By the method and the device, denitrification can be realized effectively, and secondary pollution can be avoided.

The present invention relates to one kind of underground silo type high temperature aerobic biofermenting deodorizer and its method of degrading organic stench waste compost. The underground silo has ventilating pipes connected to one main ventilating pipe in the bottom, and water filtering ditches communicated to ventilating ditches separately. The organic stench waste is decayed to form compost in the underground silo through the first biologically pre-treatment in the underground silo for 5-8 days and the secondary fermenting in a secondary fermenting unit for 12-28 days. The present invention can obtain compost with rich humus and no bad smell.

The invention discloses a high-concentration organic wastewater treatment method and equipment special for the same. The wastewater treatment method includes: adjusting pH of organic wastewater to be treated to acidic; subjecting the organic wastewater sequentially to microelectrolysis treatment, Fenton reagent treatment, flocculation precipitation, anaerobic biological treatment and aerobic biological treatment; subjecting treated wastewater to coagulating precipitation, and discharging supernatant, wherein a regularized Fe/Al/C multi-element microelectrolysis filler is adopted in the microelectrolysis treatment process. The equipment comprises a pH adjusting tank, a microelectrolysis reactor, a Fenton reactor, a flocculation precipitation tank, an anaerobic filter column, an aerobic filter column and a secondary precipitation tank which are connected sequentially, and further comprises a reagent adding system adding a pH adjuster and hydrogen peroxide respectively into the pH adjusting tank and the Fenton reactor, and the microelectrolysis reactor is filled with the regularized Fe/Al/C multi-element microelectrolysis filler. By adopting the wastewater treatment method and the equipment, biodegradability of the wastewater can be improved greatly, and quality of outgoing water can be improved remarkably.

The invention discloses a method for removing total phosphorus in waste water through a chemical/biological reaction synergistic effect. According to the invention, the advantages of chemical phosphorus removal and biological phosphorus removal are combined, and the synergistic effect of chemical and biological phosphorus removal is adopted. The total phosphorus in the waste water is removed through discharging sludge formed by high-phosphorus-content sludge and phosphorus-containing precipitates mainly containing struvite in a preaeration tank. The method disclosed by the invention is simply operated; the removal rate of the total phosphorus is up 96.8%; when the total phosphorus is removed, parts (30-40%) of organic pollutants and nitrogen can be removed, so that the burdens of subsequent aerobic biological treatment and deep treatment can be alleviated.

The invention discloses a water-based ink wastewater treatment method which comprises the following steps: (1) adding acid for acid eduction: adding acid to the water-based ink wastewater to adjust pH value to be 4-5; (2) coagulating sedimentation: adding ferric trichloride and polyacrylamide to the wastewater treated in the step (1), stirring, and leaving the mixture to stand to separate solid and liquid so as to remove sedimentary floc; (3) adding alkali for neutralization: adding alkali to supernatant obtained after solid-liquid separation in the step (2) to adjust pH value to be 7-7.5; (4) performing aerobic biological treatment; (5) discharging after wastewater treatment. According to the invention, the acid eduction coagulating sedimentation-biodegradation combined technology is adopted to treat water-based ink wastewater, the selected flocculant is wide in application range and can rapidly form floc and settles the floc. The COD removal rate of the treated water-based ink wastewater can reach 95% or above, the removal rates of suspended solids, total phosphorus, oils, benzene and total copper are all greater than 90%, and the effluent chromaticity is low and can meet corresponding emission standard; the method is suitable for treatment of various water-based ink wastewater and can be popularized and applied in a large scale.

The present invention discloses a hydrolization and acidification - anaerobism and aerobism coupling biochemical degradation system, which belongs to the technical field of environment engineering and industrial waste water disposal. The system is used for disposing organic waste that is difficult to be degraded. The biochemical degradation system consists of two serially connected airlift internally circulating biological fluidized beds. The front airlift internally circulating biological fluidized bed is an anaerobe fluid bed which adopts micro-aeration operation and carries out hydrolization and acidification processing; and the rear airlft internally circulating biological fluidized bed is an anaerobism and aerobism coupling biological fluid bed which is constructed by filling macropore carriers and carries out the complete degradation of organisms. The organic waste water which is difficult to be degraded enters the anaerobic fluid bed first, and enters the anaerobism-aerobism coupled biological fluid bed after the hydrolization and acidification processing so as to be completely degraded. The system achieves high efficiency and quick coupling of the anaerobe degradation and the aerobe, and has the characteristics of high disposing efficiency, short residence time, small floor space, low investment, low running cost and so on. The method can be applied to the sequencing batch type disposal process, and can be applied to the continuous flow type disposal process as well.

The invention provides a method and a system for drying aerobic organisms in urban raw garbage by the aid of hot air. Organic matters in the urban raw garbage are decomposed into moisture and other inorganic matters by the aerobic microorganisms in the urban raw garbage with high-temperature biological conditioners by the aid of oxygen provided by the hot air and a formed high-temperature environment, heat is released, most of the moisture is heated and evaporated into steam by the high-temperature environment and the heat, the steam is exhausted in a wet and hot waste gas form, garbage leachate is formed by an additional part of the moisture and drained, and the purpose of drying the aerobic organisms in the urban raw garbage is achieved. The system comprises an urban raw garbage aerobic organism drying bin, a hot-air auxiliary drying device, an air feeder, an exhaust fan, a liquid delivery pump and the like. The method and the system further can be optimized by means of automatic control, waste gas preheating, photocatalytic sterilization and deodorization and the like. The method and the system for drying the aerobic organisms by the aid of the hot air have the advantages that the decomposition degree of the organic matters in the urban raw garbage and moisture evaporation capacity are high, a drying process is short, a drying effect is obvious, and the garbage is treated in a harmless, reducing and stable manner.

The invention relates to a processing method for recovering the organic waste water exhausted from the dimethyl enther procedure to be used for industry circulation cooling water, and adopts the integrated system technique of anoxic activated sludge pool-anoxic biological contact oxidation pond-oxygen biological contact oxidation pond-coagulation sedimentation tank-oxygenrich biological activated carbon filtrating pool-UV bactericidin disposal technique. The biological contact oxidation pond adopts a biological filling and micropore aerating system. The anoxic biological contact oxidation degrades the organic matter under the condition of DO is 0.5 to 1.0 mg/L, and the oxygen biological contact oxidation effectively eliminates CODcr under the condition of the DO is 2 to 4mg/L. The outputted water from the oxygen biological contact oxidation pond is used for eliminating the suspended matter by coagulating and precipitation, and further is deeply processed through oxygenrich biological activated carbon filtrating pool to eliminate suspended matter and organic matter, and is finally sterilized through uv to be repeatedly used as circulation cooling water makeup water. Compared with the normal anaerobic technique, the anoxic biological processing technique eliminates the producing of the peculiar smell of H2S, and compared with the aerobic technique, the aeration quantity is reduced, the powder consumption is saved, and the anoxic biological processing technique is a new technique of biological processing. The method has the advantages of simple operation, low running expenses, small device investment and zero exhausting of waste water, and without secondary pollution.

The invention discloses an activated sludge-biofilm reactor for treating ammonium-nitrogen organic wastewater. The main structure is that a distribution reservoir is connected with a water inlet of an activated sludge reactor by a water pump, a sludge outlet is arranged at the bottom of the reactor, an aeration device is arranged above the sludge outlet inside the reactor, an agitator is arranged above the aeration device, a water outlet of the reactor is connected to the water inlet of an aerobic biofilm reactor by the water pump, a sludge outlet is arranged at the bottom of the aerobic biofilm reactor, an aeration device is arranged above the sludge outlet inside the aerobic biofilm reactor, an aerobic biofilm is grown on fillers inside the aerobic biofilm reactor, the aerobic biofilm reactor is respectively provided with two water outlets, wherein a first water outlet is connected to a discharge tank and a second water outlet is connected to the distribution reservoir, and an aerator is connected with the aeration devices of the activated sludge reactor and the aerobic biofilm reactor, respectively. The invention further discloses a method for treating ammonium-nitrogen organic wastewater.

The invention discloses a rural domestic sewage reutilization treatment device. The rural domestic sewage reutilization treatment device comprises a methane tank, a grating pretreatment unit, a buried aerobic tank, an aerobiont filter tower and a subsurface flow contructed wetland, wherein methane generated in the methane tank is subjected to denitrification and sulfate reduction under an anaerobic condition; the methane serves as a carbon source to intensify anaerobic biochemical treatment; the treatment efficiency can be improved by virtue of a warming function of the methane; and backflow is formed behind a tower-type biofilter, so that the denitrification percent is improved. The rural domestic sewage reutilization treatment device can be used for effectively removing organisms and efficiently removing nitrogen and phosphorus, occupies small floor area, is low in operation cost, can be adaptive to local conditions, and can reutilize wastes.

The invention discloses a sewage treatment device and method based on a helotism electrochemical system. According to the invention, an H-type microbial fuel cell structure is adopted; a cathode chamber and an anode chamber are connected through a proton exchange membrane; an anode electrode is made of a carbon felt material, and an anaerobic microbial membrane is attached to the surface of the anode electrode; a cathode electrode is a titanium-plated ruthenium-iridium mesh electrode, a microalgal biological membrane is attached to the surface of the cathode electrode, and an aerobic biological membrane is attached to a middle filler; and a capacitor is arranged between the cathode and the anode. When microalgal photosynthesis is stopped at night, electric energy stored in daytime is released to drive the device to operate, so continuous and efficient removal of pollutants and effective recovery of microalgae are realized. By coupling the helotismsymbiotic system and the microbial fuelcell, nitrogen, phosphorus and organic matters in the sewage are synchronously removed; the device and the method have the characteristics of low treatment cost, simple operation process and high energy utilization rate, and the defects of time consumption and power consumption of the traditional sewage treatment technology and the problems of low power generation efficiency and poor treatment efficiency of common microbial fuel cells are overcome.

The invention discloses a biodegradation-based epoxy ethane waste gas treatment method and system. According to the method and the system, epoxy ethane waste gas dissolved in wastewater is treated based on an aeration tank, a sedimentation tank and a filtering tank, and meanwhile, the treatment of organic matters in the wastewater is further realized; micro-biological degradation mainly comprises the following step of carrying out oxygenation degradation on the epoxy ethane waste gas dissolved in the water based on a microbial community generating flocculating constituents in the aeration tank; when the oxygenation degradation is carried out through the microbial community, aerobic biological treatment is carried out, the conversion of the organic matters including the epoxy ethane comprises the steps of carrying out assimilation synthesis and alienation decomposition on the organic matters by virtue of microorganisms under a sufficient oxygen condition, so as to finally generate CO2, H2O, NH3, SO2 and the like; as the CO2, the H2O, the NH3 and the SO2 are exhausted along with the water, the epoxy ethane waste gas treatment is realized.

The invention discloses a livestock manure and crop straw blending organic fertilizer preparing device and method. The livestock manure and crop straw blending organic fertilizer preparing device comprises a manure material bin 1-1, a straw pellet material bin 1-2, an auxiliary material bin 1-3, a manure material bin measuring device 2-1, a straw pellet material bin measuring device 2-2, an auxiliary material bin measuring device 2-3, a manure material sealed U-type belt conveyer 3-1, a straw pellet material sealed U-type belt conveyer 3-2 and an auxiliary material sealed U-type belt conveyer3-3. The livestock manure and crop straw blending organic fertilizer preparing device and method is innovatively characterized in that advanced technology such as strain and microbial agent technologyis introduced to perform material fermentation and preparation, modern equipment is applied to controlling temperature, humidity, quantity, quality and time, and through the processes of aerobic biological fermentation, mechanical turning and biological decomposition and ageing, waste such as livestock manure and crop straw is converted into high-quality organic fertilizers and the product quality can meet the standard (NY525-2012) on organic fertilizer products.