96results about How to "Improve biochemical treatment efficiency" patented technology

The invention discloses a deep purification and reclaiming device and method for dyeing waste water, wherein the device comprises a regulating reservoir, an naerobic tank, an aerobic aeration tank, a sedimentation tank, a chlorine peroxide oxidation tank, a medicament administration and coagulation tank, a biologically active charcoal tank and a fiber ball filter. The waste water treatment method integrates a biochemical treatment process and a physical-chemical treatment method.

The invention relates to technology for urban environmental hygiene treatment, in particular to technology for treating leachate of municipal refuse landfills and garbage burning plants. The technology comprises the following steps of: nitrifying garbage leachate, and performing polymeric membrane treatment which comprises treatment of an ultrafiltration membrane, a nanofiltration membrane and a reverse osmosis membrane, and selecting a specific operating environment in each step; performing electroosmosis treatment on the treated concentrated water; and finally, performing distillation and other treatment on the concentrated feed liquid subjected to electroosmosis, and exhausting waste materials in the garbage leachate for purification. The technology for treating the garbage leachate has the advantages of complete treatment of wastewater, relative economy, convenient installation, high efficiency, no secondary pollution and the like, and can be widely applied to treating household garbage, industrial production garbage and the like.

The present invention discloses a biological accelerator for sewage treatment. The biological accelerator comprises, by weight, 40-60% of carbohydrate, 10-30% of amino acid, 5-15% of vitamin, 2-8% of an inorganic salt, 0.1-1% of a surfactant, 0.1-2% of a growth promotion factor, and 10-20% of a powder carrier. Accordingly the present invention further provides a preparation method and a feeding method for the biological accelerator for sewage treatment. The biological accelerator of the present invention has advantages of low raw material cost, easy raw material purchasing, long storage time and convenient and rapid feeding, can increase the sewage biomass within a short time, can improve the system stability and the sewage treatment capacity, and does not damage the system ecology.

The invention discloses equipment for treating organic wastewater through the joint of electrolyzation and oxidants. The equipment comprises an electrolysis bath, a circulating system and a storage tank, wherein a water inlet and a drainage outlet are formed on the storage tank, one end of the electrolysis bath is connected with the storage tank through the circulating system, the other end of the electrolysis bath is directly connected with the storage tank, the circulating system comprises a circulating pump and a pipeline, and the equipment is characterized in that the oxidants are added into the electrolysis bath, an electrode is arranged in the electrolysis bath, and the electrode is connected with direct current; during operation, waste water firstly enters into the storage tank and then flows into the electrolysis bath from one end of the electrolysis bath through the circulating pump, in case of making current, electrolytic reaction and oxygenolysis reaction occur in the electrolysis bath, waste water flowing through the electrolysis bath flows out from the other end of the electrolysis bath and then returns to the storage tank; and the process is repeated until organic matters in waste water are degraded to meet the required level.

The invention relates to the field of waste water processing, concretely relating to a method for restoring microorganism ecology of paper making waste water. The method comprises following procedures: (1) wiping out hunks of impurities, grains of sand, and wire nails of the paper making waste water through a barrier and a setting basin, and then purifying the waste water; (2) carrying out treatment of the waste water after the waste water entering an A/O biochemical system; after the treatment, recycling or effluxing the waste water; the A/O biochemical system comprises an anaerobic hydrolytic acidification tank and a bio-contact oxidation tank; the anaerobic hydrolytic acidification tank has an addition of EM composite flora; the bio-contact oxidation tank has an addition of plant bionic filler on which EM composite flora grows. The method for restoring microorganism ecology of paper making waste water has a utilization of efficient artificial bio-carrier bionic plant and a combination of specially effective as well as advantageous EM composite microorganism microbial inoculum to improve biochemical processing efficiency, thus reducing the whole biochemical quantities, and is propitious to not only saving of investment, but also an achievement of environmental protection.

The invention relates to a method for treating xanthate wastewater through combination of film biodegradation and hydrogen peroxide oxidation, which belongs to the technical field of sewage treatment. The method comprises two sections of treatment processes, namely the film biodegradation and the hydrogen peroxide oxidation. The method comprises the following steps: controlling the volume loading of a film bioreactor to between 3.0 and 5.0 kgCOD/(m.d), controlling the hydraulic power residence time in the reactor to between 18 and 36 hours and the sludge residence time to between 75 and 150 days, controlling the dissolved oxygen concentration to between 2.5 and 4.0 milligrams per liter, controlling the temperature in the reactor to between 20 and 35 DEG C and the active sludge concentration to between 10,000 and 15,000 milligrams per liter, and controlling the sludge loading to between 0.11 and 0.17 kgCOD/(kgMLSS.d); and adjusting the pH value of the sewage in a reaction tank to between 3 and 5, adding 5 to 10 mg/L H2O2 to perform oxidation treatment for 30 to 60 minutes, and after the oxidation treatment, discharging the purified water. Through the treatment by the method, the removal rate of the COD and the xanthate reaches more than 90 percent and more than 99 percent respectively.

The invention relates to a preparation method of a microbial nutrition agent for wastewater biochemical treatment, comprising the following steps: Mixing fish meal and distilled water to prepare a slurry with the mass concentration of 5-30%; (2) heating the slurry to 45-55 DEG C, adjusting pH to 7.2-8.5, adding protease and alkaline lipase, stirring and reacting for 4-6h to prepare an enzymolysis slurry; and (3) adjusting pH of the enzymolysis slurry to 1.0-1.5, stirring and carrying out an acidolysis reaction for 1-2h to prepare the acidolysis slurry, adding alcohol slops of 1-2 times the weight of the acidolysis slurry into the acidolysis slurry, and adjusting pH to 1.5-2.0 to prepare the microbial nutrition agent for wastewater biochemical treatment. The nutrition agent prepared by the preparation method of the microbial nutrition agent for wastewater biochemical treatment is used for industrial wastewater biochemical treatment. Additive dosage of the nutrition agent is little. Microbial activity is remarkably raised. Biochemical treatment efficiency is raised. And handling expense is low.

The invention discloses a landfill leachate multi-membrane treatment process. Landfill leachate is pumped into an anaerobic tank, an anoxic tank and an aerobic tank in sequence for treatment, functional magnetic ferrite is put into effluent of the aerobic tank, and the effluent enters a sedimentation tank for solid-liquid separation; supernatant obtained from the sedimentation tank enters an immersed membrane reactor for secondary solid-liquid separation; sludge obtained from the sedimentation tank enters a magnetic drum separator for separation, and slurry containing the magnetic ferrite and returned sludge are obtained, wherein the slurry containing the magnetic ferrite flows back to enter the water outlet portion of the aerobic tank, and the returned sludge enters a middle tank; immersed membrane reactor permeate enters a tubular high-intensity magnetic field processor for magnetizing sterilization and then enters a nanofiltration or reverse osmosis system to be treated, and the treated immersed membrane reactor permeate is discharged up to standard; immersed membrane reactor concentrated mixed liquid is mixed with the returned sludge through the middle tank, and the supernatant is pressurized through a water pump and subjected to magnetic activation through a tubular medium-intensity magnetic field processor and then flows back to enter the anoxic tank.

The invention discloses a printing and dyeing wastewater treatment system and technology. An HCAO (hydrolytic acidification dominant bacterial strain aerobic contact oxidation) system which is summarized and developed by the applicant according to many years of practical experience in the printing and dyeing wastewater engineering is used for treating high-concentration printing and dyeing wastewater, the content of SS (suspended solids) and BOD in recycled water can meet discharge requirement, sludge activity is good, and settling property is good. The printing and dyeing wastewater treatment technology disclosed by the invention has the advantages that the printing and dyeing wastewater can be deeply treated, and the standards of recycled water are met, so that pure investment on wastewater treatment is changed into investment with output, the multiple effects of reducing discharge amount of wastewater, saving water resource and protecting the environment are achieved, and the market demand of the spinning, dyeing and finishing industry can be met.

The invention discloses a combined treatment process for non-biodegradable organic wastewater. The combined treatment process includes: removing suspended substances in water via a coagulation precipitation process; performing efficient muddy water separation via a coarse filtering process; subjecting the wastewater to treatment on the basis of combined action of electrochemistry, oxidation-reduction, physical absorption and flocculent precipitation by the aid of the iron-copper and iron-carbon galvanic cell principle, degrading organic pollutants and improving biodegradability of the wastewater; finally degrading organics into carbon dioxide and water via the anaerobic-aerobic biochemical reaction process; further filtering the suspended substances via the fine filtration process to enable the produced water to reach the wastewater discharge standard. Double electrolytic reaction is applied, so that organics removal effect is higher, biodegradability of the wastewater is further improved, and the combined treatment process has the advantages of being good in treatment effect, low in operation cost, convenient to operate and maintain and the like.

The invention belongs to the technical field of bioengineering, and provides a styrene degrading bacterium and application thereof. According to the present invention, the styrene degrading bacterial agent is identified as Pseudomonas plecoglossa through 16S rDNA identification, the bacterial strain has been preserved in the China General Microbiological Culture Collection Center (CGMCC) in June 2021, and the preservation number is CGMCC No.22757. The invention further provides a preparation method of the styrene degrading bacterial agent, under the optimal condition, the degradation rate of the microbial inoculum to styrene with the initial concentration of 60000mg/L for 24h is 99.97%, and the maximum tolerance concentration to styrene reaches 100000mg/L. The styrene degrading bacterial agent provided by the invention can reduce the impact of styrene on a biochemical treatment system, improves the treatment efficiency of styrene-containing wastewater, and has remarkable economic and environment-friendly benefits. Meanwhile, the strain can be applied to the field of treatment of styrene polluted wastewater and soil or styrene-containing organic waste gas.

A combined process coupling aerobic biochemical treatment, ozone catalytic oxidation and biological denitrogenation for acrylonitrile wastewater is disclosed. The combined process comprises an aerobic biochemical process, an ozone catalytic oxidation process and a biological denitrogenation process. Discharged water subjected to aerobic biochemical process treatment in an aerobic biochemical unit is led into an ozone catalytic oxidation unit. Ozone catalytic oxidation process treatment is performed in the ozone catalytic oxidation unit, and discharged water after the ozone catalytic oxidation process treatment is led into a biological denitrogenation system and subjected to biological denitrogenation process treatment.

The invention provides a double-MBR- method sewage treatment process combined with ozone oxidation. The process comprises the steps of pretreatment, biochemical treatment, primary MBR method treatment, ozone oxidation treatment, secondary MBR method treatment and filtration to obtain water meeting the emission standard, the process can reduce the addition amount of conventional ozone, reduce the generation of sludge, improve the degradation rate of degradation-resistant substances, has a wide application range and has process practicability.

The invention relates to a pretreatment device for removing nitrobenzene in waste water by potassium ferrate and a method. By adopting the device, the waste water containing nitrobenzene is mixed fully with potassium ferrate by a tube-type mixer, and then the mixture passes through a one-piece device for coagulation and precipitation to carry out degradation to the nitrobenzene in the waste water by the synergy of oxidization, coagulation, absorption and the like of potassium ferrate, wherein part of nitrobenzene is removed, and the rest part thereof can be converted into a series of aliphatic hydrocarbon, which can be further degraded completely by the subsequent biological treatment of waste water. The invention solves problem of secondary pollution commonly existing in the conventional nitrobenzene waste water treatment process; a gridding frame plate is added in the coagulating area so as to increase the stirring strength to waste water, strengthen the mass transferring action of substances in waste water, shorten the reaction time, and improve reaction efficiency; and a transitional area is added between the coagulating area and a precipitating area and a gridding-shaped clapboard is additionally arranged so as to improve the precipitating effect.

The invention relates to a landfill leachate treatment system which is sequentially provided with a zeolite tank, an ammoniation tank, an ultrafiltration tank, an iron-carbon tank, a sedimentation tank and an evaporation tank, a water outlet of the zeolite tank is connected with the ammoniation tank, the ammoniation tank is connected with the ultrafiltration tank, a concentrated solution of the ultrafiltration tank is conveyed to a Fenton tank, and the Fenton tank is communicated with a biochemical tank; ultrafiltration permeate is conveyed to the iron-carbon tank, and iron-carbon tank effluent is conveyed to the sedimentation tank. The landfill leachate treatment system is further provided with a wall breaking tank and a microfiltration tank, polyphosphate sludge is added into the wall breaking tank for wall breaking treatment, effluent of the wall breaking tank is conveyed to the microfiltration tank, effluent of the microfiltration tank is conveyed to the sedimentation tank, the sedimentation tank is further provided with a sedimentation agent inlet, and effluent of the sedimentation tank is conveyed to the evaporation tank for evaporation treatment. The landfill leachate treatment system can improve the biochemical treatment efficiency.

The invention discloses a suspended packing device for a waste water treatment pool. It solves the problems of uneven filler distribution and low biochemical treatment efficiency existing in the direct addition of existing fillers. It includes at least two fixing seats, at least one fixing cable, several suspension cables, some packing cables, some packing balls and some counterweights. The fixing seats are respectively fixed on the tops of the two opposite pool walls of the treatment tank, and one end of the fixing cable is fixedly connected to On one of the fixed seats, the other end of the fixed cable is fixed on the other fixed seat through a tensioning device; the connecting ends of the suspension cables are respectively arranged on the fixed cable through locks at intervals; the filler balls are fixed on the filler cable at intervals, One end of the filler cable is fixed on the suspension end of the suspension cable; a through hole is opened on the ball wall of the filler ball, and fillers and counterweights are filled in the filler ball. The invention has the advantages of reasonable structure and convenient use. The filler is suspended in the water body at intervals, and the distribution is uniform and the biochemical treatment efficiency is high.

The invention discloses a photo-catalytic/biochemical integrated reactor, which includes a reactor body. An upper part of the reactor body is a photo-catalytic zone and a lower part of the reactor body is an anoxic zone. At least one high-pressure mercury lamp tube is arranged in the photo-catalytic zone, wherein a photo-catalyst layer is formed on inner wall of each high-pressure mercury lamp tube. A filling material is arranged in the anoxic zone. The photo-catalytic/biochemical integrated reactor has the following significant effect: in the photo-catalytic zone, hydrogen peroxide and high-active hydroxyl free radicals are generated and are used for degrading organic substances, dyes and a part of toxic substances, which are difficult to degrade biologically and is slow in biological degradation, in waste water, thereby providing an excellent input condition to the anoxic zone at the lower part and further improving water bio-chemical treatment efficiency and water bio-chemical treatment effect in the anoxic zone.

The invention discloses biochemical treatment equipment for kitchen waste. The biochemical treatment equipment comprises a framework (3), a liner (8), an agitating mechanism (9), a discharging mechanism (2), a deodorization tower (6) and an electric control box (1), wherein the liner is arranged at the lower middle part of the framework and is fixedly connected with the framework (3); the agitating mechanism (9) is connected with the framework (3) through a fixed bearing seat (11); the discharging mechanism (2), the deodorization tower (6) and the electric control box (1) are respectively and fixedly mounted on the framework (3); the liner (8) is internally further provided with a heating device. The biochemical treatment equipment is mainly used for resourceful treatment of the kitchen waste. The heating device designed by the invention is used for heating the liner (8) and keeping the temperatures of the kitchen waste and strains in the liner (8); the designed agitating mechanism (9) is used for sufficiently mixing the kitchen waste and the microorganism strains; the biochemical treatment efficiency of the kitchen waste is improved and the water content of the treated kitchen waste is reduced to be less than 10% from 30% previously.

The invention discloses a suspending filter material having a trace element self-release function. The suspending filter material comprises polyurethane sponge, and a trace element releaser is embedded in the polyurethane sponge. The filter material is suitable for a biochemical function of a suspending rapid filter, has good intercepting and adsorbing effect on suspending pollutants and has goodmicrobial adhesion, bio-film formation and bio-film protection effect, thereby being capable of better playing a role in quick filtering and biochemical treating; the trace element releaser can provide needed trace elements for microorganisms to grow, so that microbial adhesion and bio-film formation are better facilitated.

The invention relates to a sewage treatment device which comprises a plurality of packing cups and packing, and the packing cups are sequentially stacked in the vertical direction. The packing is arranged in the packing cups and is used for the growth of biofilms. The packing cups can be rotationally switched between a first position and a second position. When each packing cup is positioned at the first position, the inclination angle of each packing cup is a first angle, the sewage can flow through the plurality of packing cups in sequence from top to bottom by virtue of gravity, and can bein full contact with the biofilms grown on the corresponding packing in the process of flowing through the packing cups and form water films on the surfaces of the biofilms, so that the biofilms grownon the packing in the plurality of packing cups perform biochemical treatment on the sewage in sequence; and when each packing cup is located at the second position, the inclination angle of each packing cup is a second angle, and the second angle is larger than the first angle, so that aged biofilms and dirt attached to the packing in the packing cups are separated from the packing by virtue ofgravity and are discharged from the corresponding packing cups.

The invention provides a horizontal suspension sludge air-lift backflow method. The method mainly comprises the following steps: sludge is sucked completely and in equilibrium and lifted to a biochemical reaction tank for recycling by arranging a horizontal plane-type air-lift micro-power backflow device in a suspension thick activated sludge layer and utilizing sludge suction pipes of the backflow device, which are horizontally arranged in the vertical and horizontal directions, and a compressed air control device outside the tank adjusts the air volume to control the quantity of backflow. Compared with the conventional sludge backflow method, the horizontal suspension sludge air-lift backflow method provided in the invention has a high backflow efficiency, there is no dead area or dead angle of sludge return in the large-area suspension sludge layer, and the backflow is in equilibrium; and besides, the activated sludge floc structure is not damaged, the control of backflow quantity is flexible, rapid and visual, no moving part or electrical equipment is used under water, and the backflow reliability is extremely high. Furthermore, an aeration blower of a sewage treatment plant is adopted for air supply, the corrected energy consumption for air-lift backflow is extremely low, and the energy-saving effect is obvious.

The invention discloses a precision tubular microporous aerator mounting and detecting system and a precision tubular microporous aerator mounting and detecting method. The precision tubular microporous aerator mounting and detecting system consists of a workbench, a mounting facility and a detecting facility, wherein the mounting facility and the detecting facility are arranged on the workbench; through a mounting pneumatic switch and a detection switch, mounting and detection of tubular microporous aerators are switched; through an air compressor or an air blower, an air source is generated; the air source is connected with a pressure reducing valve through a pipeline; a filter is connected to a pneumatic valve; the mounting pneumatic switch is mounted between the filter and the pneumatic valve; the mounting pneumatic switch controls the air source entering the pneumatic valve; the mounting facility and the detecting facility are connected with a main controller; and the main controller collects, stores, sorts and analyzes data information of each tubular microporous aerator. The precision tubular microporous aerator mounting and detecting system is scientific in structure, reliable in performance, easy to manufacture, convenient to use, easy to operate and precision in mounting, and is especially applicable to urban sewage treatment, new construction and expansion of a large factory and reconstruction of an old aeration tank.