46results about How to "Water up to standard" patented technology

A process for removing heavy metals and the organic substance difficult to degradate from sewage includes proportioning Fe and Cu, adding cationic surfactant modified zeolite, stirring, loading the mixture in filter pool, regulating pH value to 4.5-11, reaction, and regulating pH value to 8-9 to generate Fe(OH)3 as flocculant, which can coagulate the suspended solid and colloid and absorb and soluble pollutants for depositing them. Its advanrtages are high power, effect and high speed.

The invention discloses a device and a method for treating organic waste water through combination of an anode filter bed and a cathode filter bed. The device is used for treating poisonous and organic waste water with high concentration by using an electrochemical oxidation process through combination of the anode filter bed and the cathode filter bed so as to realize effective degradation of the organic waste water, wherein pollutants in the waste water undergo oxidation reaction in the anode filter bed to be oxidized and degraded, and simultaneously a packing filled in the anode filter bed has adsorption, interception and degradation effects on the organic pollutants; a special cathode material is adopted in the cathode filter bed, and the pollutants can be oxidized and degraded through strong oxidizing property of the special cathode material capable of generating lots of OH free radicals; through application of the device, a manner of horizontally arranging electrodes according to a conventional electrolytic process is changed, and the electrodes are vertically connected in series, and the vertical series connection contributes to effective degradation of the waste water in two stages; the device is wide in the range of application and can be used for pretreatment and advanced treatment in an organic waste water biochemical treatment process and single electrolysis of the high-concentration organic waste water; and the device can promote realization of pollution control on the organic waste water.

A blue alga and aquatic plant treatment ship comprises a liftable water feeding system, a pretreatment tank, an ionic gas flotation device and a precipitation accelerating tank which are arranged on a cabin or deck, wherein the liftable water feeding system is communicated with the pretreatment tank through a raw water pump or a pipeline, the pretreatment tank is communicated with the ionic gas flotation device through a secondary pump and a pipeline, and the ionic gas flotation device is communicated with the precipitation accelerating tank through a clear water outlet pipeline. The ship further comprises an alga slurry tank communicated with the pretreatment tank and the ionic gas flotation device, and an alga slurry dewatering system is arranged in the alga slurry tank. According to the glue alga and aquatic plant treatment ship and method, the blue alga and aquatic plant treatment system is arranged on the cabin and the deck of the ship and becomes a mobile blue alga treatment work station. Larger algae in inflow water can be removed through a blue alga pretreatment device comprising the liftable water feeding system, the pretreatment tank, a rotary filter belt and the like, and raw water filtrate with certain concentration enters the efficient ionic gas flotation treatment device to be treated and is discharged after meeting the standard.

The invention discloses an aerobic salt-resistant granular sludge cultivation method. The method comprises the steps of mixed wastewater preparation, sludge inoculation, powdery active carbon addition, closed aeration, aeration and salinity increase. Aerobic salt-resistant granular sludge with strong salinity impact resistance, high bioactivity, stable COD degradation and nitrogen removal effects and good sludge settlement can be obtained by domesticating through the aerobic salt-resistant granular sludge cultivation method, so discharged water reaches standards; and the inoculation amount of sludge required by the cultivation method is small, so manpower and material resources can be saved, and resource waste can be avoided.

The invention relates to the technical field of landfill leachate treatment, in particular to a landfill leachate treatment method. The landfill leachate treatment method comprises the following steps: step 1, treatment in an adjusting tank; step 2, electric flocculation treatment; step 3, anaerobic tank treatment; step 4, treatment in an anoxic tank; 5, aerobic treatment on the MBR membrane reactor; step 6, filter treatment; step 7, NF membrane and RO membrane treatment; and step 8, treatment on the landfill leachate concentrated solution. The landfill leachate treatment method can effectively reduce the conductivity and part of COD, ammonia nitrogen and other pollutants in the leachate; the biodegradability and stability of the landfill leachate are improved, the occupied area of a biochemical treatment system is reduced under the same condition, the service life of a membrane system is prolonged, the water production rate of the membrane system is improved, and meanwhile, the problems encountered in recharging and evaporation of a concentrated solution are effectively solved.

A beneficiation wastewater treatment method relates to industrial wastewater treatment and is particularly a method for reducing organics (COD) and suspended solids (SS) in beneficiation wastewater. The beneficiation wastewater treatment method is characterized by comprising the following steps: (1) pumping beneficiation wastewater into a water collection pond to be subjected to forced aeration desiting; (2) adopting a no-transmission flotation cell to perform air flotation treatment; (3) performing deodorization and COD removal in an oxidation pond by a chemical oxidizing agent; (4) performing flocculent precipitation and separation; and (5) performing activated carbon adsorption. By adoption of the method, COD in water can be finally reduced to be lower than 100 mg / L, SS is lower than 70 mg / L, water can be recycled, the deodorization purpose is achieved, and the characteristics of high automation degree and flexible and convenient running management are achieved; and adding of the compound oxidizing agent cannot cause secondary pollution, when treated water is cyclically utilized, no adverse effect is taken on beneficiation indicators, the technological process is simple and convenient, the adaptability is strong, energy saving and cost reduction are achieved, and zero discharge of beneficiation wastewater can be realized.

The invention provides an industrial wastewater treatment system, which relates to the technical field of industrial wastewater treatment technology, including a waste water treatment system containing lead and zinc, a waste water treatment system containing arsenic, cadmium, lead and zinc, and a comprehensive waste water treatment system containing lead and zinc The waste water treatment system and the waste water treatment system containing arsenic, cadmium, lead and zinc are all connected to the integrated waste water treatment system. Coagulation reaction tank and coagulation sedimentation tank, the waste water treatment system containing arsenic, cadmium, lead and zinc includes a sequentially connected regulating sump, booster pump, reaction tank and sedimentation tank, and the comprehensive wastewater treatment system includes a sequentially connected comprehensive A regulating tank, a pressurizing pump and a microfiltration membrane treatment device; the invention has strong pertinence, obvious treatment effect, and is economical and environment-friendly.

The invention belongs to the technical field of industrial wastewater treatment, and concretely relates to an acrylonitrile wastewater treatment method. The method comprises the steps of homogenization, acidification, denitrification, nitrification and deposition. TMPD wastewater with very good biodegradability can be supplemented in the acrylonitrile wastewater treatment process as a carbon source, so the COD and total nitrogen treatment effect of acrylonitrile wastewater by a system is improved, and the problem of difficult standard reaching of direct treatment of the TMPD wastewater is solved, that is, purposes of waste control by waste, cost reduction and effect improvement are realized; and a new approach is provided for standard reaching treatment of the acrylonitrile wastewater. The method has the characteristics of simple flow and low running cost.

The invention provides a modular railway train excrement collector excrement wastewater treatment method. The method adopts a treatment device which sequentially comprises a pretreatment system and anitrogen and phosphorus removal system, wherein the pretreatment system sequentially comprises a first volute dehydrator and an air flotation machine; the nitrogen and phosphorus removal system sequentially comprises a short-cut nitrification and denitrification module, an anaerobic ammonia oxidation tank and a synchronous nitrification and denitrification module, the short-cut nitrification and denitrification module sequentially comprises a denitrification tank, a nitrosation tank and a first sedimentation tank, and the synchronous nitrification and denitrification module sequentially comprises a membrane biofilter and a second sedimentation tank. The device further comprises a sludge treatment system, and the sludge treatment system sequentially comprises a sludge sedimentation tank anda second volute dehydrator; the treatment method correspondingly comprises a pretreatment step, a nitrogen and phosphorus removal step, and a sludge treatment step. Efficient denitrification is achieved through combination of multiple modules and multiple stages of reaction tanks, and the operation cost is reduced by 50% compared with the prior art.

The invention discloses a domestic sewage filter device, which comprises two parts of a separation device and a filtering device; the separation device is a cylinder, an upper side face of the cylinder is provided with a water inlet, a support column is arranged in the middle of the cylinder, the support column is provided with movable separation disintegrators, a lower side face of the cylinder is provided with a water outlet; the filtering device is a cylinder, the lower side face of the cylinder is provided with a water inlet, the water inlet of the cylinder of the filtering device is connected with the water outlet of the cylinder of the separation device, an upper side face of the cylinder of the separation device is provided with a water outlet, multi layers of filter materials are arranged from bottom to top in the cylinder of the separation device, the lower filter material is arranged on a filter plate, the filter plate is supported by a column or other substances, and an exhaust pipe is arranged in the middle of the filter materials. The domestic sewage filter device adopts the technical scheme, compared with the prior art, the domestic sewage filter device has the advantages of full sewage degradation, fast purification, simple structure, and up-to-standard sewage discharge.

The invention relates to an artificial intelligence control system for reducing foam of coal gas industrial wastewater. The artificial intelligence control system comprises an anaerobic tank, an anoxic tank, an aerobic tank, a mud-water separation tank and an artificial intelligence control system, the anaerobic tank, the anoxic tank, the aerobic tank and the mud-water separation tank are connected in sequence; the artificial intelligence control system comprises a data acquisition module, a wastewater mixing system real-time control module, a biological aeration module, a sludge reflux pump and sludge discharge pump real-time control module, a water spray pump real-time control module and a spray start-stop time control module; and the water spray pump real-time control module comprises a spraying system device. The system has the beneficial effects that the influent COD concentration of the biochemical treatment system and the sludge concentration and dissolved oxygen concentration in the aerobic tank are controlled, the foam volume in the biochemical system is reduced by 40%-50%, meanwhile, the COD removal effect in the biochemical treatment process is improved by 15%-25%, the ammonia nitrogen removal effect is improved by 25%-35%, and the total phosphorus removal effect is improved by 20%-30%.

The invention belongs to the technical field of industrial wastewater treatment, and particularly relates to an acrylonitrile wastewater treatment method, which comprises: homogenization, acidification, denitrification, nitrification, and precipitation. According to the present invention, good-biodegradability TMPD wastewater as the carbon source can be supplemented to the acrylonitrile wastewatertreatment; by adding the filler to the nitrification pool, the ratio of the BOD to the total nitrogen in the mixed sewage can be reduced, such that the wastewater consumption is reduced by 20% whilethe COD removal rate of the acrylonitrile wastewater is increased by 20% compared to the method in the prior art; the total nitrogen in the effluent the biochemical system meets the national emissionstandard so as to maximally utilize the TMPD wastewater, such that the waste is treated with the waste, the cost is reduced, and the effect is increased; and the method is suitable for acrylonitrile wastewater treatment, and has characteristics of high pollutant removal efficiency, standard effluent, simple process and low operation cost.

The invention discloses a method for treating degradation-resistant industrial wastewater. The treatment method comprises the following steps: 1) introducing the degradation-resistant industrial wastewater into an adsorption tank, and carrying out adsorption treatment by using powdered activated carbon; 2) introducing the effluent of the adsorption tank into an MCR tank, performing treatment, anddischarging the treated wastewater; 3) introducing the powdered activated carbon mixed solution in the MCR tank into an electrolytic reaction tank, and carrying out electrochemical oxidation treatment; and 4) introducing the effluent of the electrolytic reaction tank into a precipitation tank, settling the effluent, discharging the supernatant of the precipitation tank, and returning the regenerated powdered activated carbon at the bottom of the precipitation tank to the adsorption tank in step 1) for recycling. The method which combines the MCR and electrochemical oxidation to achieve advanced treatment of the degradation-resistant industrial wastewater has the advantages of high electrolytic regeneration comprehensive efficiency of the powdered activated carbon, high efficiency in removal of pollutants in the degradation-resistant wastewater, ensuring of standard reaching of the effluent of a sewage plant, low operation cost and good application prospect.

The invention discloses a wastewater treating agent and a wastewater treatment process applying the same. The wastewater treating agent is prepared from a precipitator A and a precipitator B, wherein the precipitator A is prepared from the following components in parts by weight: 30 to 40 parts of emulsive suspension of iron calcium N-methyl dithiocarbamate polymer, 8 to 15 parts of ferric hydroxide, 10 to 20 parts of sodium citrate, 15 to 25 parts of nano-sodium carbonate, 10 to 20 parts of amino compound, 3 to 10 parts of sodium sulfate and 20 to 30 parts of carboxymethyl cellulose sodium, and the precipitator B is prepared from the following components in parts by weight: 30 to 40 parts of carbon adsorbent, 15 to 25 parts of kieselguhr, 15 to 25 parts of vermiculite and 8 to 15 parts of calcium oxide.

The invention provides a modular railway train excrement collector excrement wastewater long-term treatment method, comprising a treatment device. The treatment device comprises a pretreatment systemand a nitrogen and phosphorus removal system which are arranged in sequence, wherein the pretreatment system comprises a first volute dehydrator and an air flotation machine which are arranged in sequence; the nitrogen and phosphorus removal system comprises a short-cut nitrification and denitrification module, an anaerobic ammonia oxidation tank and a synchronous nitrification and denitrificationmodule which are arranged in sequence, the short-cut nitrification and denitrification module comprises a denitrification tank, a nitrosation tank and a first sedimentation tank which are arranged insequence, and the synchronous nitrification and denitrification module comprises a membrane biofilter and a second sedimentation tank which are arranged in sequence. The device further comprises a sludge treatment system and an advanced treatment system; the treatment method correspondingly comprises a pretreatment step, a nitrogen and phosphorus removal step, an advanced treatment step and a sludge treatment step. Efficient denitrification is achieved through combination of multiple modules and multiple stages of reaction tanks, and the operation cost is reduced by 50% compared with the prior art.

The invention discloses a membrane system for realizing high-power concentration, and belongs to the technical field of water pollution treatment. The system comprises a pretreatment system, a high-concentration membrane system, a water production tank and a secondary membrane system. The pretreatment system is connected with the high-concentration membrane system, the high-concentration membranesystem is connected with the water production tank, and the water production tank is connected with the secondary membrane system; and in addition, the water production tank is connected with the high-concentration membrane system, and the secondary membrane system is connected with the high-concentration membrane system. According to the system, the osmotic pressure difference between a concentrated water side and a water production side is reduced by controlling the desalination rate of the membrane assembly, so that high-power concentration is realized under relatively low operation pressure, and the highest concentration can be close to a saturated state.

The invention relates to the technical field of polluted water processing methods, in particular to the method for processing heavy metal chromium in polluted water of leather production during the leather producing process. According to the method, the heavy metal chromium in the polluted water is removed by selecting coagulation reagents to perform a reaction of the coagulation reagents and the polluted water, wherein the coagulation reagents are the compounding of a coagulation decoloring agent of which the type is WH-4A and aluminium poly chloride; the weight ratio of the coagulation decoloring agent to the aluminium poly chloride is 7:3; the coagulation reagents are poured into the pipeline totally only before the polluted water flows towards a materialization reaction tank; and the weight ratio of the polluted water to the coagulation reagents is 35:1. Due to the adoption of the method for processing the heavy metal chromium in the polluted water of the leather production, suspended matters, impurities, heavy metal chromium ions and the like in water can be effectively removed, so the discharged water meets the standard; and simultaneously, the produced sludge is pumped out by a filter press to form dry sludge and the processing is convenient.

The invention relates to an ecological sewage treatment device and method. The ecological sewage treatment device comprises a wall shell, a bottom plate, an overflow channel, an inner cylinder, an annular column unit formed in the inner cylinder, a suspension island formed in the inner cylinder and fixed to the inner cylinder through a support, an oxygen supply assembly arranged at the bottom of the inner cylinder, a sewage inlet pipe communicating with the suspension island and an air inlet pipe communicating with the oxygen supply assembly, wherein a monitoring probe is arranged in the overflow channel, a first anoxic zone, an anaerobic zone and a second anoxic zone are sequentially formed in the suspension island through biological stuffing, the circular column unit forms an aerobic zone, an upper ecological unit and a lower precipitation unit are arranged between the wall shell and the inner cylinder, a gas flushing pipe is arranged at the bottom of the ecological unit, and the precipitation unit comprises at least three stages of three-phase separators. The device further comprises a control unit, wherein the control unit is used for controlling the air inflow amount of the oxygen supply assembly, the air inlet pipe and the air flushing pipe according to the water inlet amount of the sewage inlet pipe and data of the monitoring probe. The device is high in integration, low in energy consumption and low in cost, and realizes efficient standard treatment of dispersed and small-volume domestic sewage.

The invention discloses an intelligent water purification system and anapplication method thereof. The intelligent water purification system comprises at least one level of intelligent water purification device, wherein the intelligent water purification device comprises a first detection unit, a photooxidation reactor, a filter column, a second detection unit, an intermediate valve, a purification coil pipe, a third detection unit and a tail valve through which inlet water flows in sequence. The first detection unit sends a power adjustment signal to aultraviolet lamp after detecting the inletwater and the power of the ultraviolet lamp in the photooxidation reactor is adjusted, and the second detection unit sends a gating signal to the intermediate valve after detecting the effluent of the filter column to select whether to communicate with afirst up-to-standard discharge port or apurification coil pipe inlet; the third detection unit sends a gating signal to the tail valve after detecting the effluent of the purification coil pipetoselect whether to communicate with asecond up-to-standard discharge port or anaccident discharge port. To sum up, the system adjusts the operation parameters and treatment steps according to the detected water quality, which is flexible in operation, environmentally friendly and energy-saving.

Novel TFT-LCD organic wastewater treatment equipment mainly comprises a waste liquid gathering tank, an ozone pre-oxidation device, a neutralization basin, a hydrolysis pool, a first-stage nitrification and denitrification device, a second-stage anoxic-aerobic device and a sedimentation basin, which are connected successively. The ozone pre-oxidation device comprises several ozone pre-oxidation reaction tanks which are connected in series. The first-stage nitrification and denitrification device comprises a first-stage denitrification tank and a first-stage nitrification tank. The second-stageanoxic-aerobic device comprises a second-stage anoxic tank and a second-stage aerobic tank which are successively connected. The equipment has the following advantages: the structure is designed scientifically; the system operation is stable; and the effluent quality reaches the standard. The equipment is suitable for promotion.

The invention discloses a treatment method of coal-containing wastewater in a coal yard and belongs to the technical field of industrial wastewater treatment. The method comprises the following steps:enabling the coal-containing wastewater to flow into a primary sedimentation pool to be subjected to primary sedimentation; enabling the water overflowing from the primary sedimentation pool to entera multi-stage coagulating sedimentation pool to be subjected to coagulation; and collecting the water overflowing from the coagulating sedimentation pool for later use. The method disclosed by the invention has the advantages that the discharged water meets the discharge standards specified by DL / T997-2006, thereby economically and effectively solving the problem of pollution to natural water caused by discharge of a large amount of coal-containing wastewater in the coal yard in a rainy season; and furthermore, the discharged water can meet the water recycling requirements for coal injectionand ground washing, thereby reducing the water utilization cost.

The invention relates to the technical field of coking plant wastewater treatment, in particular to a coking plant wastewater treatment process. Specifically, a sodium carbonate solution is added in an aerobic section to provide alkalinity required by nitration reaction, ammonia nitrogen can basically be converted into nitrate nitrogen completely, at the same time, organic matters can be further degraded, so that the COD (Chemical Oxygen Demand) of final effluent water can reach the standard. According to the invention, after aerobic treatment, part of the wastewater flows back into an anoxictank to provide nitrate nitrogen for an anoxic section. According to the process provided by the invention, polyaluminum chloride or polyaluminum ferric chloride is added to the coagulation part, so that the precipitation performance of sludge at the precipitation part is improved, and the COD of effluent water is further reduced. According to the invention, cationic polyacrylamide is added into aconcentration tank to carry out flocculation reaction with sludge, so that the sludge dehydration efficiency is improved.

The invention discloses a treatment process of phenol-acetone industrial wastewater. The treatment process sequentially comprises pretreatment, biochemical treatment and chemical oxidation post-treatment; wherein the pretreatment step comprises the following steps: heating the phenol-acetone wastewater to 90-100 DEG C by using a preheater, enabling the heated wastewater to enter a molecular mill,dispersing the wastewater into small liquids one by one, then carrying out flash steam stripping, introducing steam into the molecular mill through the bottom, and carrying out secondary steam stripping; sequentially carrying out first-effect evaporation, second-effect evaporation, third-effect evaporation and fourth-effect evaporation crystallization on obtained pre-stripped wastewater, and continuously carrying out biochemical treatment and chemical oxidation post-treatment on evaporated liquid. According to the treatment process of phenol-acetone industrial wastewater, aiming at the water quality characteristics of the phenol-acetone wastewater, a treatment scheme combining physical desalination, biochemical treatment and chemical oxidation post-treatment is adopted, the process is simple, the operation is convenient, zero emission of sewage is realized, no toxic or harmful by-product is generated in the treatment process, no pollution is caused, and extremely high economic benefitsand environmental benefits are achieved.

The invention relates to a technology for treating sewage of livestock-poultry cultivation and a treatment system thereof. The technology for treating sewage of livestock-poultry cultivation is characterized by the following steps included: 1) pretreatment of sewage is conducted; 2) the sewage after passing through an acidification adjustment basin stays in a red mud plastic anaerobic ferment device for 12-15 days for carrying out anaerobic ferment, the near medium temperature ferment process is utilized for removing the organic matters in the sewage, and the produced marsh gas is recycled; 3) the outlet water biogas liquid after anaerobic ferment enters a multi-level bionic oxidation channel, the residence time of the sewage in the multi-level bionic oxidation channel is 3-6 days, the organic matters are degraded, and nitrogen and phosphor are removed; 4) the outlet water after being treated by the multi-level bionic oxidation channel enters a multi-level artificial geological fast inleak system and goes through an infiltration medium from above to below by means of natural upright flow, and the outlet water is discharged in accord with standard. The technology and system is characterized by low cost, low energy consumption and high treatment efficiency.

The invention discloses a filter material device for domestic sewage, which comprises two parts: a separating device and a filtering device; the separating device is a cylinder with a water inlet on the upper side of the cylinder and a support in the middle of the cylinder Column, on the supporting column, there is a movable separation pulverizer, and a water outlet is provided on the lower side of the cylinder; the filter device is a cylinder, and a water inlet is provided on the lower side of the cylinder, and the water inlet is connected with the separation device The water outlet on the upper cylinder is connected, and the water outlet is provided on the upper side of the cylinder, and there are multiple layers of filter material in the cylinder from bottom to top. Or other supports, and an exhaust pipe is arranged in the middle of the filter material. Because the present invention adopts the above-mentioned technical scheme, compared with the prior art, the present invention has the advantages of sufficient sewage degradation, fast purification, simple structure, and can meet the sewage discharge standard.

The invention discloses a wastewater treatment process for dairy farming, which comprises the following steps: pretreatment, secondary treatment and deep treatment. The pretreatment includes grating, homogenizing and averaging amount, solid-liquid separation, coagulation and air flotation; the secondary treatment is the combination of anaerobic treatment and aerobic treatment, including hydrolysis acidification, anaerobic digestion and aerobic biochemistry; and the deep treatment includes BAF and disinfection. The treated wastewater is directly discharged or irrigated. The pretreatment process of the wastewater treatment process for dairy farming effectively removes a large amount of suspended substance and sediment in the cow breeding wastewater, the secondary treatment process can effectively remove organic pollutants and other nutrients such as nitrogen and phosphorus, and the deep treatment can further enhance the nitrogen removal effect on the basis of further removal of organic pollutants, an effluent meets the standard of discharge and the standard of agricultural irrigation.

The invention provides a sewage treatment device, method and system, and relate to the technical field of sewage treatment. The sewage treatment device comprises a gas-liquid mixing unit and an oxidation unit connected with the gas-liquid mixing unit, wherein the gas-liquid mixing unit comprises a sewage pump, a gas-liquid jet device and a gas-liquid mixer that are connected with one another in sequence; and the gas-liquid mixer comprises at least one mixing column, wherein helical blades are arranged in each mixing column. By adopting the sewage treatment device, the technical problem that the utilization efficiency of ozone is low due to non-uniform mixing of gas and liquid in treatment equipment in the prior art can be relieved, and a technical effect of improving the utilization efficiency of the ozone can be achieved.

The invention discloses a real-time aeration precise control method in the process of treating sewage based on activated sludge. In the process of treating sewage in an aerobic reaction tank, the method sets the time according to the fluctuation range of the influent water property data and the hydraulic retention time Breakpoint, the time length between two adjacent time breakpoints is the stage time period t i ;According to the data transmitted by the sensor to the model calculation module in each stage time period, the dissolved oxygen concentration S required by the aerobic reaction pool is calculated O，set，i ; with cycle time T j as the interval, the dissolved oxygen concentration S of each stage time period O，set，i Blast air supply G required to convert to aerobic reaction tank j , the aeration air volume of the blower is regulated by controlling the execution module; the invention overcomes the roughness and blindness of the adjustment of the aeration air volume in sewage treatment, and can dynamically calculate the dissolved oxygen concentration currently required by the aerobic reaction tank in real time, so as to achieve Aeration is required to save energy while ensuring that the effluent reaches the standard and the biochemical treatment system is stable.

The invention discloses an industrial wastewater treatment method, comprising the following steps: pretreatment, secondary treatment and advanced treatment of industrial wastewater, wherein the pretreatment of industrial wastewater comprises homogenization, filtration and biosorption, and the secondary treatment is a combination of anaerobic and aerobic treatments, and comprises hydrolysis acidification, anaerobic digestion, and aerobic biochemistry; the advanced treatment comprises a filler adsorption tower, and various indicators of wastewater treated are up to standard. The pretreatment process of the industrial wastewater treatment method disclosed by the invention effectively removes a large amount of suspended solids, sediments and heavy metal ions in the industrial wastewater, the secondary treatment process effectively removes inorganic substances, organic pollutants, nitrogen and phosphorus and other nutrients in the wastewater, and the advanced treatment strengthens the denitrification effect on the basis of further removing organic pollutants; after the wastewater is treated by the method disclosed by the invention, various indicators of the effluent all meet the first-level standard in the Integrated Wastewater Discharge Standard (GB8978-1996), and can be reused in industrial production.