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 patent of the invention brings forward a novel multimedium filter for water treatment. The filter comprises a tank, a baffle plate, a water-locator, a filter material layer, an aeration system, a clear water sump and a novel specific backwashing stirring device. The device can be structured in a round, square or other vertical shape. In the meanwhile, a stirring system of the built-in novel specific backwashing stirring device can be used for deep stirring of a filter layer during routine backwashing process of the equipment. Under the action of continuous fiction and repeated stirring by stirring vanes, pollutants on the filter material layer peel off from a filter material. Simultaneously, dropped and separated pollutants are washed away from the inside of the tank by the utilization of a lot of clear water and appropriate compressed air. The unique stirring technology of the device has changed a backward technology of a traditional filter which has defects of unsatisfactory flushing effect, large power consumption and a filter layer which easily undergoes pollution, soil hardening and huddling. The invention is especially applicable to various water purification and sewage treatment fields.

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 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.

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.

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 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 invention belongs to the technical field of sewage deep treatment, and specifically relates to an improved enhanced phosphorus removal device and phosphorus removal process. The process provided by the invention is mainly used for the situation that the phosphorus concentration of effluent water after a biological sewage treatment process still can not reach the standard, and is characterized in that a phosphorus removal reagent is added to influent water in a secondary sedimentation tank to enhance flocculating phosphorus removal; and an inclined plate or inclined tube is arranged in a sedimentation tank to perform mud-water separation and flocculating phosphorus removal of effluent water from a biochemical tank in the same tank, thus improving the sedimentation efficiency and the effluent water effect. The improved enhanced phosphorus removal device and phosphorus removal process are applicable to the deep phosphorus removal demand after biological treatment, improve the effluent water quality standard and lower the investment and project cost of a sewage plant.

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 a mine water treatment system, and belongs to the technical field of sewage treatment. The treatment system comprises: a pretreatment system; a raw water regulating tank connected with the pretreatment system; a raw water tank connected with the outlet of the raw water regulating tank through a clear water pump; a filter, wherein the water inlet end of the filter is connected with the raw water tank through a raw water pump; an ultrafiltration system connected with the water outlet end of the filter; a primary reverse osmosis system connected with the ultrafiltration system; a secondary reverse osmosis system connected with the primary reverse osmosis system; and a dosing system. Mine water is subjected to advanced treatment by adopting a double-membrane method which mainly comprises ultrafiltration and two-stage reverse osmosis, so the effluent quality standard is high, primary reverse osmosis effluent can be directly used as production water, and secondary reverse osmosis effluent can reach drinking water quality standards, and can be used as source water of mining area domestic water. Compared with treatment systems in the prior art, the treatment systemof the invention can avoid a large amount of waste of water resources and realize the goal of circular economy.

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 discloses an ultra micro-filter device with variable aperture, which comprises a housing, wherein a filter cavity is arranged in the housing; a raw water inflow pipe is arranged on the top end of the housing; a fixed base is arranged at the bottom of the filter cavity; a comb-shaped filter cartridge formed by superfine fibers is arranged on the upper part of the fixed base; a float board capable of moving up and down in the filter cavity is arranged on the other end of the filter cartridge; water holes are arranged on the float board; and a water outflow pipe is arranged on the fixed base. The invention has the advantages that the raw water for micro-filtration is formed by squeezing the fibers by utilizing water inflow pressure; micropores can be simultaneously disintegrated by utilizing the pressure of reverse washing water to realize the purposes of complete washing and simple and reasonable structure; the superfine fibers are taken as filter materials; no filter membrane made of special materials is required so that the manufacture cost of the micro-filtration device is greatly reduced; the integral filter effect is good; impurities and sewages in the raw water can be effectively eliminated; the water inflow pressure is controlled to change the aperture of the micropores so as to realize the ultra micro-filter (while trapping grains of 0.1 micrometers); and the device is suitable to be used in a drinking water filter system to enhance the water quality standard of the filtered water, etc.

The invention relates to a method and system for treating urban micro-polluted river water. The method comprises the steps that a biological filler is set in a two-stage AO unit, aeration is performedat the bottom of a biological contact oxidation pond to oxygenate sewage and make the sewage in the pond body in a flow state to ensure the sufficient contact between the sewage and the filler in thesewage, organic matter in the sewage is adsorbed by a biofilm in the biological contact oxidation pond, and the organic matter is oxidized and decomposed by microorganisms formed on the filler wall in the biological contact oxidation pond under an aerobic condition, so that the sewage is deeply purified. The system comprises a first anoxic tank, a first aerobic tank, an intermediate slow releaseoxygen tank, a second anoxic tank, a second aerobic tank, a flocculation reaction tank, a secondary sedimentation tank and a tail water treatment system. The operation process is simple, and the treated micro-polluted water body can reach the IV-class water discharge standard (excluding total nitrogen) in the <Surface Water Environmental Quality Standard> (GB3838-2002).

The invention relates to the technical field of ecological treatment of domestic sewage, in particular to an integrated device for ecological treatment of domestic sewage from a landscape type ship. The device comprises a sewage treatment box, wherein an ecological precipitation cavity is formed in the sewage treatment box along a length direction towards the right side; an anaerobic treatment cavity is formed in the sewage treatment box and located on the left side of the ecological precipitation cavity; an anoxic treatment cavity is formed in the sewage treatment box and located on the leftside of the anaerobic treatment cavity; an aerobic treatment cavity is arranged in the sewage treatment box and located on the left side of the anoxic treatment cavity; a secondary sedimentation cavity is arranged in the sewage treatment box and located on the left side of the aerobic treatment cavity; an ecological membrane treatment cavity is arranged in the sewage treatment box and located on the left side of the secondary sedimentation cavity; and an MBR membrane is arranged in the ecological membrane treatment cavity. The device of the invention is relatively small in size, can realize ecological treatment of domestic sewage from the landscape type ship, and has good overall sewage treatment effect and low operation cost.

The invention provides an integrated sewage treatment and reuse device. The integrated sewage treatment and reuse device comprises a water collecting tank, a biological reaction tank, a sedimentation tank, a biological aerated filter and a water storage tank which are sequentially arranged and closely connected, a water inlet pipe is connected to the water collecting tank, and a water supply pipe is connected to the water storage tank; sewage automatically flows into the water collecting tank from the water inlet pipe, a lift pump is arranged at the bottom of the water collecting tank, automatic flowing of the sewage is achieved after the sewage is lifted by the lift pump, the sewage enters the biological reaction tank, the sedimentation tank and the biological aerated filter to be treated, the sewage meets the reuse water standard after being treated, the treated sewage is collected into the water storage tank, and the sewage is lifted by a water supply pump in the water storage tank and supplied to a user to be directly used through the water supply pipe. According to the integrated sewage treatment and reuse device, the design of integrated gapless combination of the five units is achieved, a three-grade sewage treatment technology is adopted, the effluent quality is stable, the water quality standard is higher, and the requirements of the water quality of the sewage which is treated to be serve as non-drinking water are completely met.

Belonging to the field of water treatment, the invention discloses a sewage treatment process capable of achieving surface IV-class water discharge. The process includes: step 1, carrying out dosing coagulating sedimentation, coarse filtration and other pretreatment processes on two-stage biochemical treatment effluent water to remove large-particle suspended matters and TP; step 2, enabling the clear liquid obtained in step 1 to enter a denitrification biological filter tank for denitrification treatment so as to remove nitrate nitrogen in the sewage; and step 3, enabling the effluent water of the denitrification biological filter tank in step 2 to enter an O3-powdered activated carbon (PAC)-flat ceramic membrane system to remove COD, NH3-N, SS and bacterial microorganisms, and performingup-to-standard discharge on the filtered effluent water. The process provided by the invention adopts coagulation sedimentation, denitrification biofilter and O3-PAC-flat plate ceramic membrane treatment and other technologies to carry out advanced treatment on conventional sewage biochemical treatment effluent water, can be applied to upgrading and reconstruction of municipal sewage or industrial sewage and the like, and finally reaches discharge to surface IV-class water after sewage plant upgrading and reconstruction.

The invention discloses a water treatment apparatus. The apparatus comprises a clarification mechanism, a primary filtering mechanism, a secondary filtering mechanism, a chemical disinfection mechanism and an ionizing radiation disinfection mechanism which are sequentially connected through a pipeline, wherein valves are arranged between the clarification mechanism and the primary filtering mechanism, between the primary filtering mechanism and the secondary filtering mechanism, between the secondary filtering mechanism and the chemical disinfection mechanism, between the chemical disinfectionmechanism and a ultraviolet disinfection mechanism, between the ultraviolet disinfection mechanism and the ionizing radiation disinfection mechanism, and on the outlet pipe of the ionizing radiationdisinfection mechanism. The water to be treated is clarified by the clarification mechanism and then sequentially flows into the first mechanism and the second filtering mechanism for two-stage filtration, the filtered water sequentially enters the chemical disinfection mechanism and the ionizing radiation disinfection mechanism for the chemical disinfection and the ionizing radiation disinfection, and the disinfected water flows out through the valve on the outlet pipeline of the ionizing radiation disinfection mechanism. By setting multi-stage filtering and disinfection mechanisms, the multi-stage recycling treatment of water is realized, and the quality of the treated water is greatly improved.

The invention discloses an integrated modular sewer-line-free toilet feces treatment device. The device comprises a sewage lifting module, an impurity interception module, an adjusting tank module, an anoxic biological system treatment module, an aerobic biological system treatment module, an alkalinity supplement module, a mud-water separation treatment module, a membrane treatment module, an ion removal treatment module, a solar drying module, a mud storage module, an ozone purification module, an odor collection module, a regenerated water storage module; and an automatic control module which are communicated in sequence. The integrated modular sewer-line-free toilet feces treatment device has the advantages of high integration, modular design, small occupied area, rapidness and convenience in field installation and debugging, small residual sludge amount, full-automatic control, low and stable operation cost, simplicity in operation, convenience in maintenance, good and stable recycled water effluent quality, capability of being directly recycled for flushing a toilet and the like.

The invention discloses a high-salinity sewage treatment process. The process comprises the following steps: firstly, collecting high-salinity sewage of each shift generated in a workshop into a watercollecting tank, and buffering and balancing water quality; then carrying out biochemical treatment in a biochemical system; then introducing the biochemically treated sewage into a sedimentation tank for sedimentation treatment, pumping the settled sludge into a filter press through a sludge reflux pump for filter pressing, recovering clear water obtained after filter pressing into a water collecting tank for cyclic treatment again, introducing the settled sewage into an MBR membrane tank for filtration, carrying out reverse osmosis desalination to generate desalinated water and strong brine, then cooling desalted water and strong brine generated after reverse osmosis desalination by adopting an energy-saving water temperature heat pump, recovering heat, and applying the heat to a biochemical system; and disinfecting the cooled desalted water by electrolyzing sodium hypochlorite. The disinfected water can be completely recycled as tap water, and can also be directly discharged. Hazardous waste is not generated, zero emission and no pollution are achieved, strong brine and desalted water are recycled, cooled through a heat pump and recycled, and finally the desalted water is introduced into a good water system and completely recycled.

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.