34results about How to "High water quality standard" patented technology

The invention provides a phosphating and chemical nickel-plating mixed comprehensive wastewater treatment process and an automated device. According to the process, high-concentration wastewater and low-concentration washing wastewater are respectively collected; the high-concentration wastewater and the low-concentration washing wastewater are mixed in a wastewater adjustment tank; the mixture sequentially enters a primary reaction tank, an inclined tube sedimentation tank, a secondary reaction tank, a floatation system, and a pH value correction tank; obtained clear water can reach a discharge standard and can be discharged; sludge produced during the wastewater treatment process enters a sludge collection tank, and is subjected to pressure filtration through a filter press; and an obtained solid matter is separately collected and disposed. The automated device comprises a PLC control system, a wastewater collection system, an adjustment tank, a primary reaction tank, an inclined tube sedimentation tank, a secondary reaction tank, a flotation system, dosing devices and an air stirring system. The phosphating and chemical nickel-plating mixed comprehensive wastewater is subjected to multiple levels of treatments. The entire process is automatically controlled by PLC. The entire wastewater treatment process is displayed dynamically. According to the invention, the process is simple, dosing amount is low, the quality standard of treated water is high, and processing efficiency is high.

The invention provides a method for extracting beta- glucosans by taking bran of corn as material. The method comprises the bran of corn is mixed with water and then extracted respectively by alkali liquor and amylase for centrifugal separation; supernate is added with acid for precipitation to separate and remove protein and concentrated by a spiral-wound film; the mixed solution is precipitated by ammonium sulphate solution, and the precipitated product is dissolved in the water and then concentrated by the spiral-wound film and dried to obtain highland barley beta- glucosans. A horizontal spiral unloading sedimentation centrifugal device is adopted to effectively improve the yield of the beta- glucosans; the ammonium sulphate solution is adopted to selectively sedimentate the beta- glucosans, so as to effectively remove other heteroglycans such as pentosan, xylan and the like in the material, and effectively improve the purity of the beta- glucosans; by adopting the spiral-wound film concentration technique, the water-quality standard of a great deal of produced industrial sewage is higher than tap water, and the industrial sewage can be recycled, so that the aim of energy-saving and emission-reduction can be achieved, and the economic benefit and social benefit of the enterprise can be improved.

The invention provides a sewage deep treatment ecological technology comprising an anoxic deep pond, a filtering barrier, a landscape ecological pond and a terminal purification pond which are sequentially connected. The technology can lead the water quality of outlet water after treatment to achieve the water quality standard for multi-objective reuse and simultaneously provide an artificial landscape water body which meets the environmental aesthetic value by strengthening energy-saving reoxygenation, lichenism, aquatic animal and plant resources, a food chain and other mechanisms of a multi-stage series pond system and carrying out further nitrogen and phosphorus removal and reclamation treatment on urban secondary outlet water.

The invention discloses a treatment method of antibiotic production wastewater. The innovation point is as follows: through an adjusting tank, antibiotic successively enters an iron-carbon micro-electrolysis tank, an FT oxidation tank, a coagulative precipitation tank, an air floatation tank, a treating tank equipped with an anaerobic internal circulation reactor, an upflow sludge blanket filtering basin, a hydrolysis acidification pool, a contact aeration basin and a secondary sedimentation tank so as to undergo recovery processing. According to the treatment method of antibiotic production wastewater, improved iron-carbon micro-electrolysis and improved coal / natural gas indirect liquefaction FT oxidation technologies are adopted for pretreatment, so as to destroy and degrade hardly-degraded and toxic organic pollutants in wastewater. Thus, toxicity is destroyed and water concentration is reduced while biodegradable performance of pollutants in wastewater is improved. Favorable conditions are created for follow-up biochemical treatments, and treatment efficiency and effluent quality standard are raised.

The invention discloses a domestic wastewater purifying treatment system with a wetland combination of a biological membrane, an aeration pipe and a plant filter frame. The domestic wastewater purifying treatment system comprises a grille well, a constructed wetland pool and an aeration pump. A water inlet pipeline is arranged on the left sidewall of the grille well, the grille well is connected with the constructed wetland pool through a first short pipe, the constructed wetland pool comprises a biological membrane reaction tank and the plant filter frame, a biological membrane component is arranged in the inner center of the biological membrane reaction tank, a micro-porous aeration plate is arranged below the a position inside the biological membrane reaction tank and is externally connected to a gas outlet of the aeration pump, wetland plants are planted on a fine-sand filler layer, and a water outlet pipeline is arranged above the right side of the plant filter frame. The domestic wastewater purifying treatment system has the advantages that the domestic wastewater purifying treatment system is simple in technology, large in buffer capacity, small in occupied area, low operational cost and good treatment effect, gives full play to natural biological degradation effect, achieves water quality purification and water quality improvement and has a landscape function.

The invention relates to an advanced treatment and reuse method for bio-chemical effluent of chemical wastewater. The advanced treatment and reuse method comprises the following steps: (1) using a spraying-suspending polymerization method to prepare magnetic resin with high capacity of Fe3O4; (2) performing advanced treatment on the bio-chemical effluent of the chemical wastewater with the magnetic resin prepared in step (1), adding 3-5mmol / L of H2O2 into the bio-chemical effluent of the chemical wastewater, and performing a mixing reaction for 60-600min; (3) performing solid-liquid separation on mixed wastewater treated in step (2) and disinfecting the separated bio-chemical effluent of the chemical wastewater. According to the advanced treatment and reuse method for the bio-chemical effluent of the chemical wastewater, persistent organic pollutants in the wastewater can be effectively removed, and the toxicity of the persistent organic pollutant is reduced, so that the standard requirement of reusing water quality is met, and the ecological security in a reusing process of the wastewater can be ensured.

The invention discloses dirt separation equipment for water environment. The dirt separation equipment comprises a dirt stopping protection film, rotary centrifugal frames, gas distribution spraying nozzles, gas collection gas pumps, a dirt collection box and an automatic material discharging device, wherein the rotary centrifugal frame is mounted at the outer side of the dirt stopping protectionfilm; the gas collection gas pumps are connected to the upper side of the gas distribution spraying nozzles; the automatic material discharging device is mounted in the dirt collection box. The dirt separation equipment disclosed by the invention is scientific and reasonable in structure and safe and convenient to use; the dirt separation equipment is provided with the dirt stopping protection film and the rotary centrifugal frames; the rotary centrifugal frames can be used for separating a water body and dirt in the water body through centrifuging; the dirt stopping protection film can be used for absorbing an impact force on the rotary centrifugal frames when the dirt is centrifuged, so that separation filtering holes are prevented from being blocked; the gas distribution spraying nozzles and the gas collection gas pumps are arranged and dirt on inner walls of the rotary centrifugal frames is cleaned through high-pressure gas, so that a phenomenon that the dirt is stuck with the rotary centrifugal frames is prevented; the dirt collection box and the automatic material discharging device are arranged and can be used for collecting the separated dirt and then the dirt is intensively discharged.

The invention discloses a preparation of biological self-purification sewage sludge. The preparation is powder prepared by spraying acclimated microbes on plant straws serving as a carrier. The powder is suitable for remediating static water and dynamic water. The invention also provides a method for preparing the preparation and application of the preparation.

The invention provides a method for extracting beta- glucosans by taking bran of corn as material. The method comprises the bran of corn is mixed with water and then extracted respectively by alkali liquor and amylase for centrifugal separation; supernate is added with acid for precipitation to separate and remove protein and concentrated by a spiral-wound film; the mixed solution is precipitatedby ammonium sulphate solution, and the precipitated product is dissolved in the water and then concentrated by the spiral-wound film and dried to obtain highland barley beta- glucosans. A horizontal spiral unloading sedimentation centrifugal device is adopted to effectively improve the yield of the beta- glucosans; the ammonium sulphate solution is adopted to selectively sedimentate the beta- glucosans, so as to effectively remove other heteroglycans such as pentosan, xylan and the like in the material, and effectively improve the purity of the beta- glucosans; by adopting the spiral-wound film concentration technique, the water-quality standard of a great deal of produced industrial sewage is higher than tap water, and the industrial sewage can be recycled, so that the aim of energy-saving and emission-reduction can be achieved, and the economic benefit and social benefit of the enterprise can be improved.

The invention relates to a high-efficiency treatment and recycling method of chemical industry wastewater and biochemical effluent and belongs to the field of wastewater treatment. The method comprises the following steps: (1) carrying out a Fenton oxidation reaction in a reaction tank, regulating the pH value to be 5-7, and adding ferrous sulfate and hydrogen peroxide into a water sample, so as to enable concentration of Fe<2+> and H2O2 respectively to be 1-3 mmol / L and 2-5 mmol / L, and performing reaction for 60-600 minutes; (2) mixing butylated hyper-crosslinked resin with effluent in the step (1), wherein the amount of the resin is 0.1-5 percent of the volume of the water, and mixing for 10-1000 minutes; (3) performing solid-liquid separation of the resin and water in the effluent in the step (2), so as to enable the separated effluent to be discharged or directly recycled. According to the method, hardly degradable substances in the chemical industry wastewater and the biochemical effluent can be effectively removed, the effluent meets the primary A discharge standard of pollutants for municipal wastewater treatment plants and related reclaimed water recycling standards, and the method is applied to advanced treatment and recycling of wastewater.

The invention relates to a method for advanced treatment and reuse of chemical wastewater biochemical effluent, comprising the following steps: (1) preparing high-loaded Fe by spray suspension polymerization 3 O 4 (2) Utilize the magnetic resin prepared in step (1) to carry out advanced treatment to the chemical wastewater biochemical effluent, and add 3~5mmol / L H in the chemical wastewater biochemical effluent 2 O 2 , mixed reaction, and the reaction time is 60 to 600 minutes; (3) the mixed wastewater treated in step (2) is first subjected to solid-liquid separation, and then the separated chemical wastewater biochemical effluent is disinfected. The advanced treatment and reuse method of chemical wastewater and biochemical effluent provided in the above technical scheme can effectively remove refractory organic pollutants in wastewater and reduce their toxicity, meet the requirements of water quality standards for reuse, and can ensure ecological protection during the reuse process. Safety.

The invention provides a lateral flow type membrane bioreactor device and a sewage treatment method using same. The device sequentially comprises a regulating pond (10-2), at least a first bioreactor (20-0) and an ultrafiltration system (40-0), wherein the first bioreactor (20-0) comprises a first aerobic pond (20-2), a first anoxic pond (20-4) and a first anaerobic pond (20-6); the ultrafiltration system (40-0) also comprises a membrane ultrafiltration device (40-0-0) and an ultrafiltration back flush water pot (40-10-4); a gas back flush pipe (40-8-30) is arranged at the centre of a membrane cylinder (40-8-64); a filtered water collection bin (40-8-48) is arranged below the membrane cylinder (40-8-64); an impermeable clapboard is arranged between the membrane cylinder (40-8-64) and the filtered water collection bin (40-8-48); and a plurality of U-shaped hollow fibrous membranes (40-8-10) are closely arranged between the inner wall of the hollow membrane cylinder (40-8-64) and the outer wall of the gas back flush pipe (40-8-30), sealed in the membrane cylinder (40-8-64) with downward openings, and form a sewage storage bin (40-8-40) with the hollow membrane cylinder. The invention also provides a combined sewage treatment method by utilizing at least the lateral flow type membrane bioreactor device and a lateral flow type membrane ultrafiltration device comprising a gas back flush, gas-water joint back flush and chemical membrane cleaning system.

The embodiment of the present invention discloses an organic wastewater treatment system and method, comprising: the liquid inlet of the pretreatment component is connected with the waste water source; the liquid outlet of the pretreatment component is connected with the liquid inlet of the anaerobic reactor , the liquid outlet of the anaerobic reactor communicates with the acid adjustment tank through the water outlet pipeline, and the acid adding assembly is connected on the water outlet pipeline; the bottom of the acid adjustment tank is provided with a sludge discharge pipe, and the discharge pipe The mud pipe is connected with the sludge dehydrator; the water outlet of the acid adjustment tank is connected with the MBR tank, the water outlet of the MBR tank is connected with the resin water inlet tank, and the water outlet of the resin water inlet tank is passed through the resin treatment module It is connected with the reverse osmosis water inlet tank, and the water outlet of the resin water inlet tank is connected with the backwash water storage tank through the pipeline, and the backwash water storage tank is connected with the magnesium oxide dosing device. It solves the technical problems in the prior art that the system occupies a large area, produces a large amount of solid waste such as sludge, and has a high risk of struvite scaling.

The invention discloses a grid-type electrocatalytic oxidation catalytic material and a preparation process thereof. The grid-type electrocatalytic oxidation catalytic material comprises clinoptilolite and a metal oxide coated on the outer surface of the clinoptilolite. The parts by weight of clinoptilolite are 100 parts; the metal oxides include the following parts by parts by weight: 3.5-7.2 parts of cerium oxide; 1.5-3.8 parts of ferric oxide; 0.5-1.6 parts of tin dioxide. The invention has the advantages of high catalytic activity, good stability and reproducibility.

The invention discloses an assembled upwelling medium filtering device, comprising a box body, wherein a baffle is arranged in an inner cavity of the box body; the baffle divides the inner cavity of the box body into a first-stage treatment chamber and a second-stage treatment chamber; a water inlet pipe is connected to the water inlet side of the box body, and a water outlet pipe is connected tothe water outlet side of the box body; a residue separation assembly and an upwelling medium filter are arranged in the second-stage treatment chamber; the residue separation assembly comprises an outer residue separation frame, an oil absorption rod and a residue separation breast board; the residue separation breast board is vertically suspended and fixed in the box body; the outer residue separation frame is arranged on one side, close to the baffle, of the residue separation breast board; the oil absorption rod is enclosed in the outer residue separation frame; the upwelling medium filteris arranged between the residue separation breast board and the water outlet side of the box body; and the upwelling medium filter is composed of a medium filtering frame and a medium filler. The device can achieve the effects of runoff control, retention and storage of surface water, reduction of flood peak flow, reduction of non-point source pollution, improvement of effluent quality standard, rainwater recycling and the like, and is low in maintenance cost.

Treatment method of disc type column membrane water, is the immediate processing of high concentration sewage to achieve the required emission standards, which selects processing options in series, parallel, primary or secondary treatment modalities according to the water quality and emission standards. The treatment method of disc type column membrane water is used in combination with other processes, as the final treatment step before discharge to ensure reliable standards of high concentrations of sewage treatment. The treatment device of disc type column membrane water can be connected in series or parallel alternately with flexible operation mode. Device can be designed to be connected in series or parallel operation mode according to the requirements, to achieve less volume of water and higher standards of water quality in series operation mode, and larger volume of water and lower emission standards in parallel operation mode, meeting the requirements of different water volume and water quality.