56results about How to "Improve anaerobic environment" patented technology

The invention discloses a compound microorganism fungicide for improving the water quality of a culturing water body and a preparation method. The compound microorganism fungicide is prepared by taking the strains by weight percent: bacillus subtilis, yeast, lactic acid bacteria, photosynthetic bacteria, nitrifying bacteria, bacillus licheniformis, and the like. The preparation method comprises the following steps of: firstly, culturing the bacillus subtilis and bacillus licheniformis: culturing the bacillus subtilis and bacillus licheniformis on a beef extract peptone culture medium; secondly, culturing the yeast: culturing the yeast on a lactic acid-potato-glucose culture medium; thirdly, culturing the lactic acid bacteria: culturing the lactic acid bacteria on a wort culture medium, inoculating on a triangular flask for culturing, and finally inoculating on a solid culture medium for culturing; fourthly, culturing the photosynthetic bacteria; fifthly, culturing the nitrifying bacteria; and sixthly, stirring and mixing the cultured strains by weight ratio, and drying at low temperature, thereby obtaining the compound microorganism fungicide. The formula is reasonable; the use is convenient; water is uniformly splashed; the method is easily performed; and the operation is convenient.

The invention discloses a compound microbiological preparation and a preparation method for controlling the excessive reproduction of blue-green algae. The preparation comprises the following compounds with a certain weight proportion of microbial agents, organic fermentation agents, brown sugar and micro elements. The preparation steps are as follows: A. the preparation of the microbial agent, B. the preparation of the organic fermentation agent, and then the microbial agent\ fermentation agent, brown sugar and the micro elements are mixed based on a certain weight proportion, and finally, the compound microbiological preparation can be prepared. The preparation has reasonable formulation, is convenient to be used, has no pollution to the water, has high control rate and low cost, and is easy and convenient to be operated.

The invention relates to a biological treatment method for removing nitrogen and phosphorus of sewage, and the biological treatment method comprises the processes of expansion hydrolysis, pre-denitrification reaction, aerobic reaction, sedimentation and separation, etc. A hydrolysis tank is utilized to replace a traditional tank during the expansion hydrolysis process, a pressure water distributor and a stirring device are further arranged, the biological treatment method does not only have good anaerobic environment and adequate retention time to ensure the phosphorus release, but can also more effectively convey phosphorus accumulating organisms after the full phosphorus release into the aerobic reaction to carry out the phosphorus absorption; suspended biological fillers are added during the aerobic reaction process for forming an aerobic biological fluidized bed, thereby fixing nitrifying bacteria and solving the sludge age contradiction for removing the nitrogen and the phosphorus; at the same time, the fillers form a plurality of micro-A/O nitrogen removal systems, thereby separating microbes with the different sludge ages and also maintaining the simple characteristic of the conventional A<2>/O technology; the biological treatment method does not use the chemical phosphorus removal method and only uses the biological treatment method for solving the contradiction for removing the nitrogen and the phosphorus in the traditional technology and simultaneously achieving the standards that TN is not more than 15mg/L and TP is not more than 0.5mg/L.

The invention provides a device for treating waste water containing salt through coupling of electrodes and anaerobic organisms, which comprises a cylindrical anaerobic reactor, the lower part of the anaerobic reactor is provided with a water distributor, the middle is provided with an anode and a cathode and connected with an external power supply through a wire, the upper part is provided with a three-phase separator, and the external is provided with a thermal insulating layer. The anode and the cathode are coaxially inserted into the 1/4 part of the effective height of the reactor, the lengths of the anode and the cathode are 50% of the effective height of the whole reactor, and externally applied voltage is optimally 1.2V. In the technology, iron-carbon electrodes are arranged in the anaerobic reactor for treating waste water containing salt with a high electricity conducting rate, the activity of anaerobic microorganisms is enhanced under the coupling action of an electric field and ferrous ion release, and the dwelling time of sludge in the reactor is prolonged, so that the metabolism speed of the microorganisms is raised, and the biomass is increased. The device is favorable to sieving efficient halophilic microorganisms, is used for treating high concentration of organic waste water containing salt, and has remarkable innovation, good effect for treating the waste water and good application prospect.

The invention relates to a river treatment system based on micro-nano oxygenation-aeration and biological purification effect. The river treatment system comprises a preliminary filtering device, a water storage tank, a host of a rapid micro-nano bubble generating device, an oxygenation device, a micro-nano bubble aerator and a solid-state microbial carrier, wherein the preliminary filtering device, the water storage tank, the host of the rapid micro-nano bubble generating device and the micro-nano bubble aerator are successively communicated with each other via pipelines; the oxygenation device is communicated with the host of the rapid micro-nano bubble generating device; and the solid-state microbial carrier is fixedly connected with an aeration pipeline of the micro-nano bubble aerator. The river treatment system provided by the invention cooperatively uses the rapid micro-nano bubble generating device and the oxygenation device for oxygenation of a river; and microbial purification in the aeration pipeline is cooperatively carried out so as to reduce the biochemical oxygen demand (BOD) and the contents of total nitrogen (TN) and total phosphorus (TP) and to allow ecological equilibrium of the river to be recovered.

The invention provides a device and a method for biological denitrification of landfill leachate through SBR (Sequencing Batch Reactor) short-cut nitrification-SBBR anaerobic ammonia oxidation combined process (Sequencing Batch Biofilm Reactor), belongs to the technical field of biological denitrification, and is applicable to waste water with high ammonia nitrogen and a low carbon nitrogen ratio (C/N). The device provided by the invention is provided with SBR and SBBR. The SBR reactor is mainly used for a short-cut nitrification reaction, and hereinafter referred to as SBRSBNR; the SBBR reactor is mainly used for an anaerobic ammonia oxidation reaction, and hereinafter referred to as SBBRANAMMOX. The raw liquor of the leachate is mixed with SBBRANAMMOX effluent reflux at first and then fed into the SBRSBNR for denitrification; the raw liquor of the leachate can be diluted, and partial nitric nitrogen in water also can be removed by taking full advantage of the carbon source in the raw water. Next, the effluent of the SBRSBNR is further mixed with the raw liquor of the leachate, and fed into the SBBRANAMMOX for an anaerobic ammonia oxidation-denitrification synchronous denitrification reaction; consequently, synchronous removal of nitrogen and COD (Chemical Oxygen Demand) is realized. The system removal rate of COD is 91%, the removal rate of TN is greater than 97.5%, and the total nitrogen load of the SBBRANAMMOX is about 0.7 Kg TN/m<3>.

The invention belongs to the field of distributed treatment of sanitary sewage, and relates to a sewage treatment system with separate nitrification and denitrification phases. The sewage treatment system comprises a front-section vertical flow biological trickling system and a rear-section horizontal flow multi-medium soil infiltration system arranged below the front section, wherein the front section comprises a water distribution gravel layer, a natural zeolite packing layer, a drainage gravel layer and a drainage false floor. The rear section comprises a rear-section intake pond, an intake grating, a water distribution gravel layer, a natural zeolite infiltration layer, a soil template layer, a sealing soil layer, a drainage gravel layer, a drainage grating, a rear-section delivery tank and a delivery tank water outlet; the vertical interval of the front section and the rear-section intake pond is 30-50cm. Compared with the traditional two-stage multi-medium soil infiltration system, the rear section of the system adopts a horizontal flow method, the hydraulic retention time is effectively improved, the effluent is submerged by the horizontal flow, the anaerobic environment is improved, and total nitrogen removal is facilitated. Therefore, the system is ideal in overall treatment effect, not easy to block, and low in construction and operation costs.

The invention provides a method for removing refractory organic matter in polluted bottom mud based on a calcium peroxide Fenton-like enhancement technology and application. A Fenton-like strengthening system is formed by adding a certain proportion of Fe<2+> and a metal chelating agent oxalic acid on the basis of adding calcium peroxide, HO. and O2<->. free radicals with strong oxidizing abilityare generated, and removal of residual refractory organic matters in the bottom mud is strengthened at optimized reaction time, medicament adding proportion, pH and temperature. The method can effectively remove the refractory organic matter in the polluted bottom mud of the black and odorous riverway, has the advantages of simple actual operation, wide application range, high removal efficiency,economy, applicability and the like, and has important significance for strengthening urban black and odorous water body treatment.

The invention discloses a wind-solar complementary system bottom mud in-situ aeration device and method and belongs to the field of water bottom material treatment. The device comprises a wind-solar complementary power supply system and a microporous aeration system. The wind-solar complementary power supply system comprises an inverter. The microporous aeration system comprises an air blower and a microporous aeration plate. The output of the inverter is connected with the air blower, and the air blower is connected with the microporous aeration plate. The wind-solar complementary system bottom mud in-situ aeration device and method aim to overcome the defects that existing aeration is mainly applied to riverway or lake water, the capacity of oxygen to permeate bottom mud is limited, and the black and odorous bottom mud anaerobic environment cannot be directly and effectively improved. Aeration is directly conducted through bottom mud; oxygen is directly permeated into the bottom mud without causing intensive disturbance of the bottom mud; the bottom mud anaerobic environment is effectively improved; aeration is driven through the natural energy wind-solar complementary system; the problem that in the wild, it is inconvenient to supply electric power is solved; energy consumption is saved. The wind-solar complementary system bottom mud in-situ aeration device is simple in structural principle, low in production cost and easy to implement and has high environmental benefits and economic benefits.

The invention discloses a method for wastewater pressure anaerobic biological treatment and the reactor device. When treating wastewater, the wastewater-particle sludge contact time is prolonged and the wastewater to particle sludge shearing strength is decreased, which makes wastewater be mixed with particle sludge completely and large amount of organics convert to methane. Using pressure produced in biological metabolism, the suspension solid is filtered out at grid filtering layer, which make the quality of water outlet approach to definite purity, and the water inlet volume load factor of the reactor being improved substantially. And the produced methane also has definite pressure, being pressure methane.

The invention relates to a net cage plug flow type fermentation device and an operational method thereof. The net cage plug flow type fermentation device is characterized by comprising a gallery, wherein feed liquid is filled into the gallery; a net cage delivering device used for delivering the net cage into and out of the gallery is arranged on the gallery; a gas guide pipe and a gas return pipe are arranged at the inner upper part of the gallery; the output end of the gas guide pipe is provided with two pipelines of which one is connected with a biogas collecting device and the other one is connected with a biogas compression pump; the output end of the biogas compression pump is connected with the input end of the gas return pipe; a plurality of jet exhausts are arranged at intervals on the gas return pipe; one net cage is correspondingly positioned below each jet exhaust; and a heating pipe is also arranged at the inner upper part or the inner lower part of the gallery and connected with hot circulating water. The net cage plug flow type fermentation device is convenient to operate, has low energy consumption and high gas yield, can effectively avoid incrustation and blockage of the gallery, and provides a favorable anaerobic environment, thus being widely used in the fermentation process of excrement and straw.

The invention provides an in-situ black-odor river bottom mud repairing material as well as a potting and application thereof. The in-situ black-odor river bottom mud repairing material comprises an oxygen releasing repairing agent and an enhanced microbial enriched elastic filler, wherein the oxygen releasing repairing agent is polylactic acid coated with CaO2/FeCl3, the enhanced microbial enriched elastic filler comprises an iron modified bentonite-sodium alginate coated three-dimensional filler and a microbial agent, and the microbial agent is located on the surface of the iron modified bentonite-sodium alginate coating. By adopting the in-situ black-odor river bottom mud repairing material provided by the invention, the treatment of pollutants in water and the repair of bottom mud arerealized at the same time, the operation method is simple, the repairing efficiency of the bottom mud per unit area is high, the material is environmentally-friendly, and the investment cost is low.

The invention belongs to the technical field of sewage treatment, and relates to a novel microbial fuel cell generating device and an assembling method thereof. A cell body sequentially comprises an anode cover plate, anode carbon cloth, an anode chamber, a proton membrane, a cathode chamber, cathode carbon cloth and a cathode cover plate which are fixedly connected, wherein liquid adding ports are formed in the top of the anode chamber and the top of the cathode chamber, and an anode electrode contact piece and a cathode electrode contact piece are fixedly mounted at the bottom of the anode cover plate and the bottom of the cathode cover plate respectively; a cell base comprises a cell bottom plate seat, a wiring seat, a cell clamping plate and a cell movable clamping plate, a conductivespring is hinged between the cell clamping plate and the cell movable clamping plate, a cell wiring terminal and a resistor wiring terminal are arranged on the wiring seat, an anode electrode contactpin and a cathode electrode contact pin which are respectively in contact with the anode electrode contact piece and the cathode electrode contact piece are fixedly arranged on the inner side of the cell clamping plate and the inner side of the cell movable clamping plate, so that the problems of long starting time and low power generation capacity of the fuel cell caused by complicated liquid change assembly of the fuel cell and poor leakproofness of the anode chamber are solved.

The invention relates to a bottom sludge elution floating platform on the basis of magnetic coagulation and loading processes. The bottom sludge elution floating platform comprises a floating platform, a magnetic coagulation and loading device, an aeration disturbance device and a control room. The bottom sludge elution floating platform has the advantages that bottom sludge elution can be carriedout on large-volume water bodies by the aid of the magnetic coagulation and loading processes, and platform structures are optimized; the magnetic coagulation and loading processes have the characteristics of compact structures, the bottom sludge elution floating platform which is a product is designed to be modular and is convenient to detach and transport, and accordingly the operation efficiency and effects can be effectively improved; the bottom sludge elution floating platform can effectively adapt to various water areas and landforms, depths and environments, magnetic seeds in separatedfloc can be recycled, filter-press is carried out on sludge deposits, the sludge deposits are bagged and transported, and accordingly secondary pollution can be prevented.

The invention discloses a composting device and a composting method for organic garbage, and relates to the technical field of organic garbage treatment. The composting device comprises an outer shell, a heat exchange assembly, an air inlet pipe, an air outlet pipe and a leachate collecting assembly.The upper end of the outer shell is provided with an opening, the opening is connected with a covering film, the covering film can open or close the opening, and the outer shell is used for containing the organic garbage; the heat exchange assembly is used for heating the interior of the outer shell, the air inlet pipe and the air outlet pipe can communicate with an inner cavity of the outer shell and the outside, the end, away from the outer shell, of the air inlet pipe is used for communicating with the induced draft fan, the air inlet pipe is used for introducing oxygen into the outer shell, and the air outlet pipe is used for guiding out waste gas generated in the outer shell; and one end of the leachate collecting assembly is located in the outer shell, the other end of the leachate collecting assembly extends out of the outer shell, and the leachate collecting assembly is used for guiding percolate generated by composting to the outside. According to the composting device and the composting method for the organic garbage, oxygen can be supplied to a pile body while the temperature of the pile body is ensured.

The invention discloses an arrangement type rotating disc aeration system suitable for river and lake treatment, the arrangement type rotating disc aeration system comprises a plurality of suspension type rotating disc aerators, the suspension type rotating disc aerators are rotating disc aerators mounted on a suspension type base, each rotating disc aerator comprises a rotating shaft, a driving device and rotating disc plates, and the rotating disc plates sleeve the rotating shaft at intervals; a plurality of suspension type rotating disc aerators are arranged around a circular path at intervals to form a combined body, an opening is formed in the suspension type base, the opening is arranged to be an aeration area, and the rotating disc is immersed into the river channel from the aeration area. The openings in the suspension type bases are closed openings in the suspension type bases or open openings distributed in the same direction in the radial direction facing the circle center or in the tangential direction of the circumference. A plurality of suspension type rotating disc aerators are arranged at intervals around a circular path to form a combined body, and continuous high-power aeration is carried out on a non-flowing lake, so that vortex-shaped or radial mixing of sewage in a treatment area is realized.

The present invention relates to the technical field of feed processing, especially to a silage sealing method. Specifically, the silage sealing method includes the following steps: in the process of filling a silage pool with silage, making the silage into a turtle back shape with the middle being high and the surround being low; covering the silage with a plastic thin film, wherein the plastic thin film is pressed tight against the wall of the silage pool and is folded up for 30 to 50 cm high; injecting water to the upper surface of the plastic thin film from one end, and forming a compressing force onto the wall of the silage pool by using the liquidity of water so as to enable the plastic thin film to be tightly pressed against the wall of the silage pool. The water liquidity makes the shape of the plastic thin film to change as the silage changes, so that the plastic thin film covering the surface of the silage can be tightly presses against the silage and the wall of the silage pool to extrude air from the inside of the silage pool, and a good anaerobic environment is accordingly formed. The water liquidity can also automatically fills a gap caused by the silage sinking during a silage maturation process, thereby preventing the phenomenon of poor sealing cause by the sinking of the silage. Therefore, the anaerobic fermentation effects and the quality of the silage can be improved.