31results about How to "Favorable for biological treatment" patented technology

The invention discloses an early-stage sorting device for kitchen garbage. The early-stage sorting device comprises a sorting device and a wiping and conveying device, wherein the sorting device comprises a material inlet, an inner layer screening barrel, an outer layer screening barrel, a separation motor, an oil and water outlet, a coarse material outlet and a fine material outlet; the wiping and conveying device is provided with a conveying tube; an input end of the conveying tube is connected with a fine material outlet; an output end of the conveying tube is connected with a biologic treatment instrument; the conveying tube is tapered, and the diameter of the output end of the conveying tube is less than that of the input end; and a spiral rod driven by a motor to rotate is arranged in the conveying tube. The sorting device can effectively sort inorganic garage and sort oil and water at the same time, and the wiping and conveying device controls the moisture content of the materials entering the biologic treatment instrument, so that later-stage biologic treatment is facilitated.

The invention discloses application of a hollow glass bead biological membrane carrier in wastewater treatment, which includes that a hollow glass bead is added in a biological membrane reactor for inoculating active sludge, the biological membrane reactor is started to intake water and aerate so as to enable the hollow glass bead to contact with microorganisms in the biological membrane reactor fully, a biological membrane is generated on the surface of the hollow glass bead, and the biological membrane is used for perform wastewater treatment. The weight of a single hollow glass bead is less than 0.001g, grain size of the single hollow glass bead is 0.01-0.075mm, and density of the single hollow glass bead is 180-190Kg.m-3. The hollow glass bead biological membrane carrier is light in weight, small in grain size and density, stable in chemical property and high in mechanical strength, has good sealing performance, wind pressure resistance and corrosion resistance, is not easy to break and good in mobility, can form a turbulence state with the microorganisms, simultaneously can resist strong hydraulic shear action, facilitates the wastewater treatment, and accelerates forming speed of the biological membrane and starting time of the reactor.

The invention discloses a device for synchronously neutralizing and heating low-temperature acidic waste water, which comprises a neutralization water tank (1), a waste water inlet pipe (9) and a waste water outlet pipe (7), a mixed stirring tank (2) which takes a tank body as a heat conduction material is provided in the neutralization water tank (1); a stirring paddle (3) is provided in the mixed stirring tank (2), a communicating pipe (5) which is communicated with the neutralization water tank (1) is provided at the upper part of the mixed stirring tank (2), a non return valve (6) is provided in the communicating pipe (5), a lime inlet pipe (8) is provided at the upper part of the mixed stirring tank (2), a deposition drain tube (4) is provided at the bottom of the mixed stirring tank (2), the waste water inlet pipe (9) is respectively communicated with the neutralization water tank (1) and the mixed stirring tank (2); the waste water outlet pipe (7) is arranged on the upper part of the neutralization water tank (1). According to the invention, waste water can be heated by using waste heat to achieve the purposes of treating waste by waste and energy saving as well as consumption reduction.

The invention discloses a preparation method of a graphite type C3N4 material, the graphite type C3N4 material and an application of the graphite type C3N4 material. The preparation method comprises steps of heating calcination and constant-temperature calcination. The preparation method is used for rapidly preparing the graphite type C3N4 material, a small variety of raw materials are required, the cost is low, the process is simple, the production cost is effectively reduced, and accordingly, the preparation method is suitable for industrial large-scale production and has great actual application value. The specific surface area of the graphite type C3N4 material prepared with the method is 30.1 m<2>/g-68.7 m<2>/g, and the graphite type C3N4 material has the advantages of large specific surface area, high photocatalytic activity and the like, can be used for photocatalytic degradation of landfill leachate and can efficiently degrade organic pollutants in the landfill leachate.

The invention provides a method for separating and purifying salts in the 2,4,5-triamino-6-hydroxy pyrimidine sulfate production process. The method comprises the following steps that: guanidine nitrate, ethyl cyanoacetate and sodium methoxide serving as raw materials are subjected to a condensation reaction to generate condensate 2,4-diamino-6-hydroxypyrimidine, methanol and sodium nitrate; the condensate 2,4-diamino-6-hydroxypyrimidine, sodium nitrate and sulfuric acid serving as raw materials are subjected to a nitrosation reaction to generate a nitrosified substance 2,4-diamino-5-nitroso-6-hydroxypyrimidine, sodium sulfate and water. According to the method, firstly, after the condensation reaction, sodium nitrate is separated, and purification is carried out; then, sodium sulfate is separated in the nitrosation reaction, and purification is carried out; and byproducts of industrial sodium nitrate and industrial sodium sulfate meeting the national standard are reclaimed, so that hazard waste output is eliminated, wastewater drainage is reduced, salt content in wastewater is reduced, and process wastewater biological treatment is benefited.

The invention discloses a biological treatment device for river pollutants. The device comprises: a floating box, solar cell panels, a first duct and a second duct, a positive electrode and a negativeelectrode, a water pump, a spray head, biological filler, a burner nozzle, a temperature controlled igniter and a heating pipe. The device provided by the invention utilizes electrolysis produced oxygen to oxygenate river water and promote microbial growth and aerobic degradation, and achieves effective biological treatment of river pollutants. At the same time, the device also utilizes electrolysis produced hydrogen combustion to keep the filler temperature so as to maintain the activity of microorganisms in a low temperature environment, and realizes effective biological treatment of riverpollutants in a low temperature environment. The biological treatment device provided by the invention has the advantages of no need for additional power unit, low running cost and simple maintenance,and is suitable for popularization and application.

The invention relates to a three-stage treatment device and method of high-ammonia/nitrogen wastewater in an alternate-flow artificial wetland. The three-stage treatment device comprises a nanometer aeration ablation device, wherein a nanometer aeration disc connected with a nanometer aeration machine is arranged inside the nanometer aeration ablation device and located above a sludge outlet; the alternate-flow artificial wetland is connected to a surface-layer turbulence screen filter by virtue of a water outlet pipe; a water outlet of a water storage tank of the surface-layer turbulence screen filter is connected with a cyclone desanding device by virtue of a hydraulic pump; a sludge outlet is formed in the bottom of the cyclone desanding device, a stirrer is arranged at the top of the cyclone desanding device, impellers and paddles of the stirrer incline upwards and the upper part of the cyclone desanding device is connected with a backwash pump. The invention also discloses a three-stage deep treatment method of high-ammonia/nitrogen wastewater effluent by virtue of the combined device.

The invention provides a method and device for processing wastewater containing high-concentration sodium sulfate and low molecular weight organic matter. The device comprises a neutralizing tank, a turnover tank, a freezing crystalizer, a cooler, a nano-filtration unit and a biochemical reaction device; the cooler is provided with a work fluid input port, a work fluid output port, a coolant fluidinlet and a coolant fluid outlet, the neutralizing tank is in pipeline connection with the turnover tank, the freezing crystalizer is provided with a feeding inlet and a crystal pulp outlet, the workfluid output port is in pipeline connection with the feeding inlet, the crystal pulp outlet is in pipeline connection with a coolant fluid inlet, the nano-filtration unit is provided with a liquid inlet, a first liquid outlet and a second liquid outlet, the liquid inlet is in pipeline connection with the coolant fluid outlet, the first liquid outlet is in pipeline connection with the turnover tank, and the second liquid outlet is in pipeline connection with the biochemical reaction device. The problem that in cross linking etherification starch production by adopting sodium sulfate as particle expansion inhibition agent, due to the high wastewater total salt amount, a biologic method cannot be directly adopted for treatment is solved.

The invention relates to an electrocatalytic oxidation pretreatment method of semi-synthesis antibiotic wastewater. The electrocatalytic oxidation pretreatment method comprises the following treatment steps of: (1) by using filler particles with the particle size of 20-25 meshes as electrodes, rinsing off by water, naturally airing, soaking for 24 hours by the wastewater to be treated, and changing water for 4-5 times during soaking till particles are saturated through adsorption; (2) taking the particle electrodes, airing and placing the particle electrodes in an electrocatalytic oxidation device, and setting the distance of the main electrode of an electrolytic cell at 70cm; and (3) adding the wastewater to be treated into the electrocatalytic oxidation device, adjusting the cell voltage of the electrolytic cell of the device to be 40-50V, and controlling the compressed air flow at 50-65L/h and the reaction time for 5-45 minutes. The electrocatalytic oxidation pretreatment method has the beneficial effects of being beneficial to the improvement of biodegradability of the semi-synthesis antibiotic wastewater and subsequent biological treatment, increasing the removal rate of pollutants and reducing the treatment cost.

The invention discloses a sludge desanding device for a municipal sewage plant, and the sludge desanding device comprises a pretreatment device and a main separating device, the pretreatment device is a prescreening sieve whose top is provided with multiple rows of rod devices obliquely arranged along the sludge flowing direction, in the rod device, ends of multiple rods are fixedly installed on a substrate while their other ends are regarded as free ends arranged along the sludge flowing direction. A sludge desanding method for the municipal sewage plant comprises the following steps of: firstly, preprocessing; removing soft fibers from primary sludge through the prescreening sieve and guiding underflow under the prescreening sieve into a slurry-storing tank; secondly, performing solid-liquid separation with hydraulic cyclone; thirdly, screening with a dewatering screen; desanding sludge from the municipal sewage plant through the mentioned steps. Through utilization of the device and the method, hairs and other soft fibers from the sludge can be effectively removed, thereby reducing gravels in the sludge, improving the content of the organic matter from the treated sludge, reducing the sludge concentration and preventing sediment from deposition.

The invention discloses a treatment process for garlic processing wastewater. The treatment process for garlic processing wastewater comprises a pretreatment process and a biological treatment process. The pretreatment process comprises the following steps: separately collecting garlic slice cleaning wastewater, and combining and collecting other processing wastewater, wherein the garlic slice cleaning wastewater is collected in a water collecting tank, and the other processing wastewater is collected into a water gathering tank; respectively pumping the garlic slice cleaning wastewater and the other processing wastewater into respective microfilters for mechanical screening; after treatment by the microfilters, allowing the garlic slice cleaning wastewater and the other processing wastewater to enter respective sedimentation tanks for gravity sedimentation respectively; allowing precipitates settled from the garlic slice cleaning wastewater and precipitates settled from the other processing wastewater to enter respective sludge tanks; and gathering liquid supernatants of the two sedimentation tanks into an adjusting tank for the later biological treatment process. The garlic processing wastewater is divided according to quality, so the removal rate of allicin can be increased; no chemical agent is added in the whole process, so no chemical sludge is generated; and generated sludge is easy to treat and dispose and can be used as agricultural fertilizer or greening fertilizer.

The invention discloses a sewage purification device capable of controlling a biotechnology. The sewage purification device structurally comprises trundles, supporting columns, a drainage pipe, a sewage purification structure, a case and a water inlet pipe. The supporting columns are vertically mounted at the four corners of the lower end of the sewage purification structure; the drainage pipe penetrates through the inner side of the right end of the sewage purification structure; the case is horizontally mounted at the upper end of the sewage purification structure; the water inlet pipe is embedded into the left end of the sewage purification structure; and the sewage purification structure comprises a sedimentation tank, a partition plate, a biological treatment cavity, an aeration structure, an air blower and a filtering cavity. According to the invention, the aeration structure is arranged on the inner side of the biological treatment cavity, so that when a biological membrane is centralized for treatment, the inclined slope prevents the biological membrane from staying due to relative balance with impurities, the growth of the biological membrane is facilitated, and the sewagetreatment effect is further improved; and a frame body is arranged on the outer side of a linkage structure, so that corner angle limitation on the inner side is reduced, impurities are not prone tobeing clamped on the inner side, growth of the biological membrane is guaranteed, and biological treatment can be better conducted on sewage.

The present invention relates to a classified collection system for kitchen garbage sewage, the classified collection system comprises a water supply device, a sewage putting-in device, a crushing machine, a separator, a high-level floating ball, a low-level floating ball, an electromagnetic water valve, a vacuum valve and a selection switch, the electromagnetic valve is connected with a gravity drainage pipe network, and the vacuum valve is connected with a vacuum drainage network. The classified collection system not only solves the problem of classified collection of domestic garbage, but also reduces kitchen garbage production amount, realizes the classified collection of kitchen light sewage and heavy sewage, and is convenient for subsequent processing.

The invention discloses a grease degrading bacterium, the classification name of the strain is Microbacterium esteraromatum, the strain is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.22787, and the invention also discloses a screening method and application of the strain. The JY34 obtained by the invention can well grow under a medium temperature condition, and the lipase enzyme activity reaches 65 U/mL to 160 U/mL; the method is simple in process, high in environmental adaptability and simple in nutritional requirement, and can efficiently degrade grease in edible soybean oil and kitchen waste wastewater, and the grease degradation rate reaches about 70%-80%.

The invention discloses a sewage treatment pretreatment tank with an aeration ball repeatedly moving along a horizontal plane. The tank comprises a tank body, a drain pipe and a filter box. The lowerend of the right side wall of the tank body is fixedly connected with the drain pipe, and the left side of the tank body is fixedly connected with the filter box. A water inlet pipe is fixedly connected to the rear side wall of the filter box, and a water conveying pipe is welded to the lower end of the filter box. A discharging plate is hinged to the inner side wall of the lower end of the filterbox, and a first hydraulic rod is fixedly connected to the right side wall of the lower end of the filter box. Movable frames are clamped to the upper ends of the front side wall and the rear side wall of the tank body, and telescopic plates are slidably connected to the inner sides of the movable frames. According to the sewage treatment pretreatment tank with an aeration ball capable of repeatedly moving along the horizontal plane, impurities in sewage can be conveniently subjected to multiple filtering treatment, the filtered impurities can be conveniently cleaned, and the practicability of the pretreatment tank is improved; and in addition, the aeration ball can conveniently repeatedly move along the horizontal plane, and the biological treatment efficiency is improved.

The invention relates to a method for waste water biologic treatment, particularly to a method to improve suspension filling biologic membrance coating function. The specific method is to add internal electrolyzing method of catalyzed irom in traditional biologic suspension filling technology to be used as pretreat step of biologic suspension filling technology, different aeration methods are used as high or low of redox potential and pH value of industrial waste water. In the invention, surface modifying is proceeded in waste water treatment needing not to put chemical drug in suspension filling step, internal electrolyzing method of catalyzed iron itselfis used to increase biochemical ability of waste water.

The invention discloses a household garbage incineration slag cleaning wastewater source pollutant treatment method. The method comprises the following steps of firstly, spraying a semiconductor photocatalyst solution to garbage to be subjected to combustion treatment, then melting the micro plastic particles in the garbage through combustion reaction in the hearth, and enabling the melted micro plastic particles to capture the semiconductor photocatalyst to be attached to the surfaces of the micro plastic particles and/or enter the micro plastic particles, after the incineration slag is cleaned, enabling the micro plastic particle conjugate to enter the cleaning wastewater, illuminating the wastewater by visible light, and accelerating photocatalytic degradation of the micro plastic particle conjugate by a semiconductor photocatalyst, and along with further decomposition of the plastic additive, reducing the stability of the micro plastic particle conjugate, and cracking and breaking the micro plastic particle conjugate, and then separating the magnetic semiconductor photocatalyst from the water body and recycling in a magnetic mode. Compared with the prior art, the technical scheme has the advantages of high efficiency, convenience and the like, and the plastic additive in the household garbage incineration slag cleaning wastewater can be effectively decomposed and removed.