100 results about "Oxidation pond" patented technology

The utility model discloses a jet flow gas distribution ozone oxidation device, which belongs to the field of sewage treatment and comprises an ozone supply unit, a water inlet unit, a primary jet flow oxidation unit, a secondary jet flow oxidation unit, a water outlet tank and a tail gas treatment device, the ozone supply unit comprises an ozone generator, an ozone flowmeter and a pressure control valve; the water inlet unit comprises a water inlet tank, a water inlet jet pump and a water inlet pump, the first-stage jet oxidation unit comprises a jet ozone feeder and a first-stage jet oxidation tank, a water inlet jet mixer and an ozone jet mixer are arranged in the first-stage jet oxidation tank, and the ozone jet mixer is connected with an outlet of the jet ozone feeder; and the second-stage jet flow oxidation unit comprises a vacuum induced draft fan, a second-stage jet flow oxidation pond, a jet flow oxidizer and a second-stage jet flow oxidation pump. According to the device, the ozone utilization rate of the system and the contact frequency of ozone and pollutants can be effectively improved through multiple times of jet flow gas distribution mixing, so that the energy consumption of the system is reduced, and the pollutant removal rate of the system is improved.

The invention provides a black membrane oxidation pond-MBR combined system and method suitable for winter and summer dual-mode treatment of pig manure water in a cold region, and aims to solve the problems of low treatment efficiency, poor seasonal adaptability and low resource utilization rate of the pig manure water in the cold region. The system comprises a pretreatment unit, a black membrane oxidation pond unit, an MBR treatment unit, a winter and summer mode switching unit and a tail water utilization / discharge unit, by optimizing a heat preservation structure and MBR process parameters of the black membrane oxidation pond, tail water can be used for farmland resource irrigation after reaching the standard in a summer mode, and pollutant removal is enhanced in a winter mode so as to meet the emission standard. The problems of low pig manure water treatment efficiency, high cost and poor seasonal adaptability in the cold region are solved, both resource recovery and environmental safety are considered, and technical support is provided for sustainable treatment of livestock and poultry breeding wastewater in the cold region. The invention belongs to the technical field of livestock and poultry breeding wastewater treatment.

According to the advanced treatment process for the thiourea-containing wastewater, multi-stage pretreatment is performed through iron-carbon micro-electrolysis, three-dimensional electrochemical oxidation and ozone oxidation, so that long-chain organic matters are degraded, organic nitrogen is directly converted into nitrogen, and the biodegradability of the wastewater is improved; then adjusting the pH value, and sequentially carrying out biochemical treatment through an IC tower and a biological contact oxidation pond; and biochemical effluent is finally subjected to ozone contact oxidation to ensure that the standard is reached. According to the invention, iron-carbon micro-electrolysis, three-dimensional electrochemical oxidation and ozone oxidation are sequentially adopted to carry out multi-stage pretreatment on the wastewater, so that long-chain organic matters are efficiently degraded, organic nitrogen is directly converted into nitrogen, and the biodegradability of the wastewater is remarkably improved; then adjusting the pH value of the wastewater to be neutral, and sequentially introducing the wastewater into an IC tower and a biological contact oxidation pond to realize degradation of short-chain organic matters and efficient biological denitrification; and finally, residual refractory pollutants are further removed through ozone contact oxidation, so that stable and thorough purification of high-toxicity, high-ammonia-nitrogen and high-COD thiourea-containing wastewater is realized.

The invention discloses a treatment system for synergistically removing odor substances and a new pollutant PFAS in water and a treatment method thereof. The treatment system comprises a pre-oxidation unit, an algae removal, adsorption and clarification unit, a membrane separation and concentration unit and a destruction unit which are connected in sequence. The pre-oxidation unit is provided with an oxidation pond with a transverse reciprocating dynamic aeration assembly, so that the ozone mass transfer efficiency is improved. The algae removal, adsorption and clarification unit enables a suspended carbon mud bed to periodically expand and contract through a pulse generator so as to strengthen adsorption. The membrane separation and concentration unit adopts a modified polyether sulfone conical-end filtering membrane and is matched with an online cleaning mechanism, so that PFAS is efficiently intercepted, and secondary pollution is avoided. The destroying unit is used for carrying out synergetic high-temperature incineration on the membrane separation concentrated water and the waste carbon mud, and PFAS is thoroughly decomposed at the temperature higher than or equal to 900 DEG C; by optimizing ozone aeration, pulse adsorption, fluorine-free membrane separation and collaborative incineration, efficient collaborative removal of odor substances and new pollutant PFAS and harmless treatment of waste are achieved, the system integration degree is high, the treatment effect is good, and the risk of secondary pollution is avoided.

The utility model discloses an aeration system of a sewage oxidation pond, which belongs to the technical field of sewage treatment and comprises an oxidation pond body, a vertical mounting frame is fixedly mounted on the side wall of the oxidation pond body, a lifting driving component is mounted on the inner wall of the vertical mounting frame, and a lifting connecting plate is mounted on the lifting driving component. The lifting connecting plate is attached to the inner wall of the oxidation pond body and inserted into the oxidation pond body, a bearing block is fixedly installed at the bottom of the lifting connecting plate, an aeration frame is placed on the bearing block and fixedly connected with the lifting connecting plate through a bolt connecting assembly, and an aeration pipe is fixedly installed on the inner wall of the aeration frame; the aeration frame and the aeration pipe can be conveniently maintained and cleaned, the convenience of replacement and maintenance is greatly improved, meanwhile, the aeration pipe can be accurately located at the proper depth of sewage, oxygen is better supplied to microorganisms, pollutant decomposition is efficiently promoted, and the sewage purification effect is improved.

This invention relates to the field of wastewater comprehensive utilization technology and discloses a water purification processor for power plant circulating cooling water. The processor comprises, in sequence, a denitrification tank, a secondary sedimentation tank, a flocculation sedimentation tank, an ozone contact oxidation tank, a BAF booster tank, a BAFDN tank, a BAFDC tank, a BAF permeate tank, a fiber disc filter, and a purified water tank. The denitrification tank is connected to the circulating water discharge via a pump, and a submersible mixer is fixedly installed inside the denitrification tank. To stably and efficiently remove total nitrogen from wastewater and ensure stable and controllable denitrification, this water purification processor for power plant circulating cooling water installs a submersible mixer in the denitrification tank, along with a first carbon source dosing device, to precisely control the dissolved oxygen (DO) in the tank to ≤0.5 mg / L, creating an anoxic environment. Simultaneously, a sludge return pump from the secondary sedimentation tank returns activated sludge to the denitrification tank to maintain a stable sludge concentration, thereby achieving stable total nitrogen removal and laying the foundation for subsequent advanced treatment.

The application provides a sewage treatment biochemical reaction tank, and relates to the technical field of sewage treatment, which comprises a biochemical tank, wherein the biochemical tank is communicated with a water distribution tank, a plurality of filter material oxidation units are arranged in the biochemical tank, adjacent filter material oxidation units are communicated, sewage enters from one end of the biochemical tank, sequentially passes through a plurality of adjacent filter material oxidation units, and finally enters a sedimentation tank, the filter material oxidation unit comprises a filter material bin and an oxidation tank, the filter material bin is filled with granular calcium carbonate dephosphorization filter material so as to remove phosphate ions in sewage, an aeration pipe is arranged below the oxidation tank, a plurality of aeration holes are formed in the aeration pipe, a curtain type filler is arranged above the aeration pipe, and the curtain type filler is attached with an aerobic microbial membrane; the filter material bin is arranged adjacent to the oxidation tank, and the oxidation tank is communicated with the filter material bin. The application has the advantages of high dephosphorization and denitrification efficiency and good sewage treatment effect.

This utility model discloses a centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate, belonging to the field of wastewater collection technology. It includes a centrifugal filtration device, a distillation tower, an oxidation tank, a membrane filtration system, an activated carbon adsorption box, and a recovery water tank arranged sequentially. The activated carbon adsorption box includes a box body with several symmetrically arranged support legs at the bottom. An outlet is located at the top of the box body, an inlet is located on the bottom side wall, and a wastewater outlet is located at the center of the bottom. The box body has a water distribution layer, a coarse-particle activated carbon layer, and a fine-particle activated carbon layer distributed sequentially from bottom to top. This centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate purifies the wastewater after centrifugation, allowing it to be reused as process water or cooling water, reducing the amount of fresh water required.

The utility model provides a sewage treatment dephosphorization mechanism, and belongs to the technical field of sewage treatment. The mechanism comprises an air blower and a plurality of contact oxidation ponds which are distributed around the air blower as the center, the contact oxidation pond comprises a circular pond body, a buffer cylinder vertically arranged in the center of the pond body, a plurality of annular filler layers arranged around the buffer cylinder at intervals, and a drainage groove formed in the bottom of the inner side face of the pond body; an air outlet of the air blower and the interiors of the different pool bodies are connected with air inlet pipes; a drainage opening is formed in the outer side of the drainage groove; a water outlet is formed in the lower part of the buffer cylinder, a water inlet pipe is arranged in the buffer cylinder, one end of the water inlet pipe is positioned in the water inlet pipe, the other end of the water inlet pipe extends out of the tank body and is provided with water delivery pumps, one water delivery pump is externally connected with sewage to be treated through a pipeline, and the rest water delivery pumps are sequentially connected in series with the water outlets of the adjacent contact oxidation tanks through pipelines. The mechanism can intensify the layout of the contact oxidation pond and the air blowers, reduce the configuration number of the air blowers, and improve the dephosphorization effect.

The utility model discloses oxidation selection equipment for sewage treatment, and mainly relates to the field of sewage treatment equipment. Comprising a biological selection tank and a contact oxidation tank which are internally provided with black photochemical components; aeration heads are arranged at the lower ends of the biological selection tank and the contact oxidation tank, and aeration conveying is carried out towards the interiors of the biological selection tank and the contact oxidation tank through the aeration heads. The sewage treatment device has the beneficial effects that microorganisms in the biological selection tank and the contact oxidation tank can be quickly propagated, so that the decomposition efficiency of the microorganisms on organic matters in sewage is accelerated, and the sewage treatment time is shortened.

The utility model belongs to industrial wastewater treatment technical field discloses a kind of Fenton oxidation pond packing shelf and Fenton reaction pond device, including packing shelf body and at least two hanging material layers, and packing shelf body includes upper shelf body and lower shelf body, and both are detachably connected along vertical direction, and upper shelf body top is provided with lifting connection structure;At least two hanging material layers are respectively arranged on upper shelf body and lower shelf body, and each layer hanging material layer includes multiple hanging material cross beams that are arranged in parallel along horizontal interval, and multiple filter bags are detachably and interval hung along the length direction of each hanging material cross beam, and filter bag interior is filled with zero-valent iron reagent, and raw water in oxidation pond can contact reaction with zero-valent iron reagent in its interior through the small hole of filter bag.The utility model effectively improves the contact efficiency of reaction reagent, reduces ferrous sulfate consumption, makes reaction process more sufficient, accelerates reaction rate, improves treatment effect;Meanwhile, it is convenient to quickly replace and supplement reaction reagent on packing shelf, and operation is simple.

The utility model relates to the technical field of sewage treatment. A catalytic ozonation pond comprises a raw water channel, a grid is arranged in the raw water channel, the raw water channel is communicated with a first reaction pond, an ozone reaction area is arranged on one side of the ozone reaction area and used for sucking sewage treated in the first reaction pond into the ozone reaction area, and the first reaction pond is communicated with the first reaction pond. A water collecting tank is arranged on one side in the first reaction tank and is used for isolating impurities in water in the first reaction tank, a cleaning tank is arranged, a sealing cover is arranged at the top of an ozone reaction area, and the ozone reaction area is communicated with an ozone generator at the treatment system through an ozone conveying pipe; the ozone and the treated water are subjected to ozone treatment, and the ozone is generated by converting oxygen or pure oxygen in the air into ozone by means of high-voltage discharge or electrolysis and the like. And the generated ozone is uniformly added into the oxidation pond through a gas distribution system.

This utility model discloses a sealing device for a water treatment filter, relating to the technical field of anaerobic tank sealing devices. It includes a tank body with an installation opening on the left side. A sealing cover is installed inside the installation opening. An opening and closing mechanism is provided between the tank body and the sealing cover. An aeration mechanism and a tank wall cleaning mechanism are respectively provided on the upper and lower surfaces of the sealing cover. The opening and closing mechanism includes two installation grooves respectively formed in the front and rear walls of the installation opening. Guide rods are fixedly connected to the inner walls on both sides of the front installation groove. Through the opening and closing mechanism, when the tank body needs to be fully opened, the motor drives a reciprocating screw to rotate via a bevel gear. Under the conductive action of the guide block and guide rod, the screw block can cause the reciprocating screw to rotate, driving the sealing cover to move left and right within the installation opening until the sealing cover moves to the left, fully opening the tank body. This provides convenience for opening and closing the oxidation tank.

The utility model relates to an ROS advanced oxidation pond which comprises an oxidation pond main body, an aeration pump and an ROS aerator, a first gas conveying groove is formed in the outer side surface of an oxidation pond box body, a mounting plate is arranged on the oxidation pond box body, and a second gas conveying groove in the mounting plate and the first gas conveying groove are aligned and communicated to form a gas conveying channel; the aeration pump can press air into the air conveying channel through the air inlet and ventilate the ROS aerator mounted on the mounting port, so that the ROS aerator can aerate the aeration cavity, and therefore, the air conveying channel is integrated on the oxidation pond box body, and a traditional air conveying pipeline is replaced by the air conveying channel, so that the aeration efficiency is improved, and the aeration efficiency is improved. According to the ROS advanced oxidation pond, the gas transmission channel can be isolated from sewage, the use of pipelines is reduced, the risk that the pipelines are corroded during use can be avoided, the service life of the ROS advanced oxidation pond is prolonged, and the operation cost is greatly reduced.

This invention discloses a treatment device for wastewater from the production of cyanamide plant growth regulators, including an oxidation tank and a flocculation tank. A detection box is installed on one side of the bottom of the oxidation tank. This invention targets the oxidation and precipitation treatment process of cyanamide wastewater, dividing the wastewater into oxidation and flocculation tanks. The main oxidation and precipitation treatment is carried out in the oxidation tank. A rotary jet agitator is installed at the upper end of the oxidation tank, using the wastewater flowing into the oxidation tank as a circulation carrier to uniformly spray the synchronously supplied oxidant into the oxidation tank through the jet agitator. This is beneficial to improve the reaction effect between the oxidant and the wastewater. By combining wastewater information with a preset dosage ratio model, the theoretical dosage of the agent is obtained. The oxidant is added in a "precise", "dynamic", and "intelligent" manner by combining addition and ORP monitoring feedback, avoiding the problems of excessive oxidant or incomplete treatment that may occur with traditional fixed addition methods.

The utility model discloses an oxidation pond, belongs to the technical field of sewage treatment equipment, and particularly relates to an ultrasonic and ozone synergistic oxidation pond for sewage treatment, which comprises an oxidation pond group, an ozone inlet pipe, a tail gas destroying device, a communicating pipe and a tail gas discharge pipe, and the oxidation pond group consists of a first oxidation pond and a second oxidation pond; according to the ultrasonic-ozone synergistic oxidation pond, ozone bubbles can be crushed into microbubbles through the crushing effect of ultrasonic waves, so that the dissolving speed of ozone is greatly increased, and the concentration of ozone in unit time is increased, so that pollutants in water are quickly oxidized and degraded under the action of high-concentration ozone, and the water quality is improved. Meanwhile, the synergistic effect of ultrasonic waves and ozone not only improves the treatment efficiency, but also reduces the dosage of ozone, so that the treatment cost is reduced.

The invention provides a sludge internal circulation type AOA three-stage ecological pond polluted rainwater treatment system and method, relates to the field of sewage treatment, and solves the technical problems that a stable anaerobic-aerobic-anoxic microenvironment is difficult to construct and deep nitrogen and phosphorus removal is difficult to realize in a traditional oxidation pond. The system comprises a conveying module, a treatment module and a sludge directional circulation module. The conveying module is composed of a water inlet, a grating, a lifting pump and a pipeline. The treatment module is sequentially divided into an anaerobic section, an aerobic section and a facultative section which are separated by partition walls; the sludge directional circulation module adopts a double-backflow system, sludge is respectively conveyed to the front end of the anaerobic section and the front end of the facultative section through a sludge pump and a backflow pipe, directional backflow of the sludge, optimization of carbon source utilization and sludge discharge and dephosphorization are realized, and the sludge directional circulation module is suitable for distributed sewage treatment. The sewage treatment device is used in the sewage treatment process.

The invention relates to a glass fiber wastewater zero discharge system and process, and relates to the technical field of glass fiber wastewater treatment. Comprising a grating channel, a pre-aeration adjusting tank, a two-stage coagulative precipitation tank, a hydrolysis acidification tank, a contact oxidation tank, an MBR membrane tank, an ultrafiltration device, a two-stage reverse osmosis device, a strong oxidation reaction tank, a biochemical advanced treatment tank and a deep flocculation precipitation tank which are sequentially connected through a water supply pipeline, and further comprises a dosing unit and a sludge treatment unit, a physicochemical, biochemical and advanced treatment mode is adopted, 'coarse and fine grids, a pre-aeration adjusting tank and two-stage coagulating sedimentation 'are adopted in a physicochemical section, 'hydrolytic acidification, contact oxidation and an MBR membrane' are adopted in a biochemical section, 'ultrafiltration and two-stage reverse osmosis' are adopted in advanced treatment, 75% of produced water is reused as process water, and the water quality is improved. Concentrated water is subjected to strong oxidation, deep biochemical treatment and deep flocculation precipitation, and the effluent is reused for urban landscaping and road sweeping, so that zero emission of glass fiber wastewater is realized, and economic benefits and environmental benefits are improved.

The utility model belongs to the technical field of oxidation clamps, and particularly relates to a double-station solar frame vertical oxidation clamp which comprises a transverse moving mechanism, an oxidation pond and a solar frame, the movable end of the transverse moving mechanism is fixedly connected with a clamping mechanism, and the outer wall of the oxidation pond is fixedly connected with a positioning table. The clamping mechanism comprises a fixing plate, a sliding rail, a two-way threaded rod, a nut, a second connecting plate, a positioning adjusting plate, an electric-hydraulic push rod, a fixing plate block, a guiding telescopic rod, a second air cylinder, a fixing hook, a chuck body and a clamping jaw. The outer wall of the fixing plate is fixedly connected with a nut sliding block. And by arranging the positioning adjusting plate, the solar frame can be conveniently pushed to be tightly attached to the partition baffle, then the solar frame is pushed by the material pushing plate to move to a proper position, then the solar frame is conveniently positioned, and subsequent clamping oxidation operation is facilitated.

The utility model discloses a water treatment system for blue crab culture in saline-alkali soil. The water treatment system comprises a saline-alkali land underground water conveying pipeline, an aeration oxidation pond, a biological filter located on one side of the aeration oxidation pond, a water diversion assembly used for communicating the biological filter with the aeration oxidation pond, a precipitation reaction pond communicated with the biological filter through a water diversion pipeline, and a drainage pipe communicated with the blue crab culture pond. An aeration disc is fixedly mounted at the position, close to the bottom of the tank, in the aeration oxidation tank, and a plurality of air nozzles are uniformly arranged on the aeration disc. An air compressor is arranged outside the aeration oxidation pond and is communicated with the aeration disc through an air pipe, and the air pipe fixedly penetrates through the pond wall on the corresponding side of the aeration oxidation pond. According to the utility model, a three-section type water treatment system is established to reduce the iron content in the saline-alkali water, the whole treatment process is good in effect, precipitation generation and separation are integrated, and the inconvenience of step-by-step operation is eliminated.

The utility model relates to the technical field of sewage treatment equipment, in particular to a co-construction micro-ecological filter bed device for rural areas, which comprises a regulating reservoir and a contact oxidation pond, a grating channel is arranged at the front end of the regulating reservoir, an artificial grating is mounted in the grating channel, the grating channel is communicated with the regulating reservoir, an equipment room is arranged at the front end of the contact oxidation pond, and the equipment room is communicated with the contact oxidation pond. A fan is mounted in the equipment room, the output end of the fan is connected with an air pipe, the air pipe is connected with an air stripping device through a regulating tank, the output end of the air stripping device is connected with a plurality of groups of aeration discs, the aeration discs are mounted in a contact oxidation pond, a contact oxidation pond water outlet pipe is mounted at the left end of the contact oxidation pond, and a water outlet pipe is mounted at the right end of the contact oxidation pond. Due to the integration of the adjusting tank, the biochemical system and the micro-ecological filter bed, the occupied area of the sewage station is reduced, the excavation work amount of civil construction is reduced, the development of construction procedures is facilitated, and the total construction time is shortened.

The invention provides a deep denitrification system and method for petrochemical high-salinity wastewater, and relates to the field of wastewater treatment.The deep denitrification system comprises a pretreatment pool, a first degassing pool, a second degassing pool, a third degassing pool, a fourth degassing pool, a fifth degassing pool, a sixth degassing pool, a seventh degassing pool and a seventh degassing pool which are sequentially connected, and the pretreatment pool is used for receiving catalytic desulfurization and denitrification wastewater and removing suspended solids; the regulating tank is used for proportionally mixing the degassed catalytic desulfurization and denitrification wastewater with reverse osmosis concentrated water, power desulfurization and denitrification wastewater and sulfur desulfurization and denitrification wastewater and carrying out homogenization and uniform regulation on the four water qualities, and the advanced oxidation tank is used for oxidizing the mixed wastewater and increasing the biodegradability of the mixed wastewater; according to the water quality characteristics, the removal efficiency of each unit is maximized according to the flow combination, and meanwhile, each unit combination is stable in operation, low in operation cost and simple to operate, and secondary pollution wastewater cannot be generated.

The utility model discloses a novel sewage treatment device for a wind power plant, which comprises a filter tank, the right end of the filter tank is fixedly provided with an adjusting tank, the front end of the adjusting tank is fixedly provided with an anoxic tank, the upper parts of the right ends of the adjusting tank and the anoxic tank are jointly provided with a first pump, and the front end of the anoxic tank is fixedly provided with a contact oxidation tank; a second pump is jointly mounted at the upper parts of the right ends of the anoxic tank and the contact oxidation tank, aerators are mounted at the lower parts of the right ends of the contact oxidation tank and the regulating tank, and a sedimentation tank is fixedly mounted at the left end of the contact oxidation tank. According to the novel sewage treatment device for the wind power plant disclosed by the utility model, external air is pumped into the aeration pipe and the aeration head on the aerator through the aerator, so that sewage in the contact oxidation pond is subjected to aeration treatment, the sewage is in full contact with the filler layer, microorganisms utilize organic matters in the sewage as a nutrient source to carry out metabolism, and the biological activity of the sewage is improved. Therefore, organic matters are degraded, and the purpose of purifying water is achieved.

The application discloses a kind of integrated immobilized microorganism scenic spot sewage treatment equipment based on solar energy, it is related to sewage treatment technical field, including integrated treatment pool and solar power generation system for power supply, wherein integrated treatment pool includes left pool body, right pool body and water tank, left pool body, right pool body are separated by intermediate partition, water tank is located at the water outlet side of right pool body;Deposition tank and hydrolysis acidification tank are arranged in left pool body from top to bottom, MBR membrane biological reaction tank, three-phase separator and biological contact oxidation tank are arranged in right pool body from top to bottom;The top of water tank is provided with a section of water outlet pipe and is communicated with MBR membrane biological reaction tank.The present application is compact in layout, flexible in use, realizes the step-by-step treatment of sewage, and realizes real-time online monitoring, effectively removes organic pollutants, total nitrogen, ammonia nitrogen and the like, has good purification effect, and the effluent can be used for scenic spot greening irrigation water, realizes the recycling of water resources, and greatly saves water resources.

The utility model discloses a wastewater treatment system, which is characterized in that sewage to be treated is temporarily stored through an adjusting tank, then is guided into an anaerobic tank for anaerobic reaction and then is guided into a biological reaction tank, and air blown by a filter screen in the biological reaction tank is utilized to carry out nitrification and denitrification reaction through microorganisms, so that the sewage is treated. The method comprises the following steps: reacting wastewater in an oxidation tank, introducing reacted water into a sedimentation tank for sedimentation, introducing supernatant into a discharge tank through a decanter, introducing wastewater precipitated through the discharge tank into a first treatment cavity of the oxidation tank, introducing the wastewater and ozone of an ozone generator into a water inlet shell through a water inlet pipe by using a water pump, and introducing the wastewater into a second treatment cavity of the oxidation tank through a water outlet pipe. The impeller is used for stirring the ozone to form vortex, so that the sewage and ozone are fully mixed and reacted, the contact efficiency between the ozone and supernate of the sewage is improved, and the water treatment efficiency is improved.

The utility model relates to the technical field of environment-friendly water treatment, in particular to integrated equipment for treating oil-containing emulsified wastewater, which comprises an oil separation tank, a demulsification flocculation tank, an air floatation tank, an oxidation tank, a first sedimentation tank, an anaerobic tank, an aerobic tank, a second sedimentation tank and a sand filter which are sequentially arranged according to the flowing direction of the oil-containing wastewater. The integrated equipment for treating the oil-containing emulsified wastewater has the beneficial effects that the oil-containing emulsified wastewater is treated by adopting a combined process of a physicochemical method and a biological method. The front end adopts oil separation-demulsification-flocculation-air flotation, the middle is Fenton oxidation, and the rear end adopts anaerobic and aerobic biochemical treatment. Through on-site construction and agent debugging, the technology treats the oil-containing emulsified wastewater of which the COD (Chemical Oxygen Demand) of raw water is as high as 50,000-100,000 and the oil content is as high as 1000mg / L until the COD is less than 500mg / L and the oil content is less than 20mg / L.

The utility model provides a kind of chemical wastewater treatment system, carries out advanced treatment to chemical wastewater, reduces processing cost while improving wastewater treatment efficiency, finally can realize sewage discharge up to standard.The utility model includes fine grid channel, regulating basin, ozone oxidation pond, hydrolytic acidification pond, Phoredox pond, Fenton reaction pond, final sedimentation tank, denitrification filter tank and disinfection tank, fine grid channel, regulating basin, ozone oxidation pond, hydrolytic acidification pond, Phoredox pond, Fenton reaction pond, final sedimentation tank, denitrification filter tank, disinfection tank are sequentially connected;Phoredox pond is mainly composed of pre-anaerobic tank, anaerobic tank, anoxic tank I, aerobic tank I, anoxic tank II, aerobic tank II and MBR membrane pond, pre-anaerobic tank, anaerobic tank, anoxic tank I, aerobic tank I, anoxic tank II, aerobic tank II, MBR membrane pond are sequentially connected;The final sedimentation tank is mainly composed of coagulation tank, flocculation tank and sedimentation tank, coagulation tank, flocculation tank, sedimentation tank are sequentially connected.

The utility model belongs to the technical field of wastewater treatment devices, and discloses a novel treatment device for DMF (Dimethyl Formamide) production wastewater, which comprises an oxidation pond, and a plurality of feeding mechanisms are arranged in the oxidation pond; the feeding mechanism comprises a mounting frame, a first mounting groove, a mixing frame, a plurality of first electromagnetic valves, a water outlet pipe, a plurality of nozzles, a second mounting groove, a sealing frame and a plurality of water pumps, the first mounting groove and the second mounting groove are formed in one side of the mounting frame, and the first mounting groove is located in the top of the second mounting groove; according to the wastewater treatment device, the mounting frame capable of moving up and down is arranged in the oxidation pond, a feeding agent can be sprayed out from the spray head at the water outlet pipe after being mixed and reacted in the mounting frame, and wastewater can be pumped and sprayed to the water outlet pipe through the water pump, so that the wastewater can be better mixed with the agent, and the mounting frame can move up and down; the surrounding wastewater is disturbed, so that the flowability of the wastewater is accelerated, and the mixing of the wastewater and the medicament is further improved.

The invention provides a coking wastewater treatment method based on heterotrophy-sulfur autotrophy coupling denitrification, and relates to the technical field of wastewater biological treatment. The method comprises the following steps: constructing an oxidation tank, a hydrolysis tank, an anoxic tank, an aerobic tank and a sedimentation tank which are sequentially communicated, directionally domesticating functional flora in each unit, and enabling the coking wastewater to be treated to sequentially flow through the oxidation tank domesticated with low-oxygen dephenolizing bacteria, the hydrolysis tank domesticated with anaerobic hydrolysis bacteria and the coupling anoxic tank enriched with heterotrophic denitrifying bacteria and sulfur autotrophic denitrifying bacteria, and the aerobic tank is rich in nitrifying bacteria, and sludge-water separation is finally realized through the sedimentation tank. According to the technology, through the synergistic effect of heterotrophic denitrification and sulfur autotrophic denitrification, toxicity reduction, organic matter degradation and deep nitrogen removal of the coking wastewater are synchronously realized in a system.

The utility model discloses a black pig breeding sewage oxidation pond with an adjustable connecting channel, which comprises an oxidation pond main body and a discharge pipe, the discharge pipe is positioned above the oxidation pond main body, and the upper part of the oxidation pond main body is provided with a discharge position adjusting component. Through the arrangement of the discharging pipe and the discharging position adjusting assembly, during discharging, the discharging position adjusting assembly continuously changes the discharging position, it is avoided that impurities are accumulated at one position to affect filtering, meanwhile, it is avoided that sewage always washes one position of a filtering plate, consequently, the filtering plate is damaged, and the service life of the filtering plate is prolonged; through arrangement of a filter plate, a spring, a bearing plate, a discharge port, a vibration assembly and a waste collection box, when sewage is filtered, the vibration assembly vibrates the filter plate to improve the filtering efficiency, filtered impurities slide out of the discharge port along with the slope and are collected by the waste collection box, then solid-liquid separation of the sewage is completed, subsequent processing treatment is facilitated, and the practicability is high. The processing efficiency is improved.