11results about How to "Improve effluent quality" patented technology

The application provides a biochemical pool air inlet adjusting method, which comprises the following steps: S1, replacing the air inlet pipeline of the biochemical pool with a transparent pipeline, and additionally arranging a monitoring assembly on the outer wall of the transparent pipeline; S2, synchronously collecting multi-dimensional real-time data at a fixed period at the corresponding position of the biochemical pool; S3, combining the predicted air demand with the valve characteristic curve to inversely deduce the corresponding reference value of the opening degree of the adjusting valve; S4, making the opening degree of the adjusting valve reach the corresponding reference value according to the reference value to complete the pre-adjustment; S5, calculating the opening degree correction coefficient by partition weighting according to the sensor data, and synthesizing the final target opening degree; S6, the adjusting valve automatically adjusts the opening degree of the adjusting valve according to the flow-ammonia nitrogen coupling prediction model and the opening degree correction coefficient; S7, the monitoring assembly regularly scans the transparent pipeline, and initiates backwashing when dust accumulates; and S8, combining the data self-learning every day, optimizing the flow-ammonia nitrogen coupling prediction model, improving the model precision, effectively improving the aeration efficiency, reducing the energy consumption, and simultaneously guaranteeing that the water quality meets the standard.

This invention relates to the field of wastewater treatment technology, and more particularly to an urban domestic wastewater treatment device including a treatment pump station. The top of the outer arc surface of the treatment pump station is provided with a flange inlet, and the bottom of the inner arc surface of the treatment pump station near the flange inlet is connected to a conical flow guide plate. The upper surface of the conical flow guide plate is provided with an inlet in the middle. The conical flow guide plate is a double-layered structure with an arched end inside. Through a special structural design, the water flow is guided to form a slow flow state, providing sufficient reaction time for the coalescence of tiny oil droplets. This promotes the fusion of emulsified oil droplets and dispersed oil droplets to form large oil droplets. Utilizing the physical property that the density of oil is less than that of water, the oil droplets can naturally float to the surface and form a stable floating oil layer. The entire oil-water separation process does not require additional power and can be completed solely by gravity, effectively improving the oil-water separation efficiency while reducing the energy consumption and maintenance costs of the device.

The utility model is suitable for silicon carbide membrane filtration technical field provides a kind of agentless self-flocculation silicon carbide membrane filtration device, it include: fixed seat, the fixed seat is equipped with reaction mechanism and water production tank;The reaction mechanism includes the reaction pool of being fixed on the fixed seat, the one side of the reaction pool is equipped with ladder, one end of the reaction pool is equipped with power supply, the power supply is connected and is equipped with electrode, the one side of the reaction pool is equipped with control electric box, the inside of the reaction pool is equipped with membrane box group, the outside of the reaction pool adjacent the membrane box group is equipped with driving assembly, the top of the reaction pool is equipped with mud scraping assembly, the bottom of the reaction pool is equipped with a plurality of groups of first discharge pipeline, by this, the utility model has the advantages that reagent dosage is less, sludge production is low;High degree of automation, convenient operation;Equipment integration degree is high, and floor area is small;Processing effect is more optimal, and special water quality is suitable;Environment-friendly strong advantage.

The application relates to the technical field of water treatment, and discloses an environment-friendly mine exploitation sewage treatment device, which comprises a sewage treatment tank, a flocculation assembly is arranged in the sewage treatment tank, and a sewage treatment bin is connected to the outer wall of the sewage treatment tank; a partition bin is fixedly embedded in the sewage treatment bin, metal pipes and drainage pipes are respectively embedded in the partition bin and communicate with the sewage treatment tank; a lower partition plate is also embedded in the partition bin, and a center through hole is arranged at the middle position of the lower partition plate. The environment-friendly mine exploitation sewage treatment device is provided with the partition bin, the fine particle size of the particles is greatly improved in sequence from bottom to top, the problem of electrode plate scaling of an electrochemical flocculation assembly in a subsequent sewage treatment tank is effectively avoided, and the stable operation of a deep treatment unit is ensured.

This utility model relates to the field of wastewater treatment technology and discloses a wastewater treatment system for a highway service area, comprising: an equalization tank, a water treatment tank, a pre-sedimentation tank, and an MBR membrane tank; the water treatment tank includes an anoxic tank and an aerobic tank, the equalization tank and the anoxic tank are connected, the anoxic tank and the aerobic tank are connected, the aerobic tank and the pre-sedimentation tank are connected, and the pre-sedimentation tank and the MBR membrane tank are connected. The pre-sedimentation tank is used to pre-treat suspended solids in the wastewater entering the MBR membrane tank. This application, by setting up a pre-sedimentation tank to pre-treat suspended solids in the wastewater entering the MBR membrane tank, can effectively remove most of the suspended solids and some colloidal substances from the wastewater, avoid high-load operation of the MBR membrane, reduce the risk of membrane fouling, extend membrane life, reduce cleaning frequency and energy consumption, and improve effluent quality.

This utility model discloses a seawater desalination pretreatment filtration system, belonging to the field of seawater desalination. It includes a chemical dosing mixer, a modified fiber filter, a coarse sand filter, a fine sand filter, and a product water tank. The outlet of the chemical dosing mixer is connected to the inlet of the modified fiber filter, the outlet of the modified fiber filter is connected to the inlets of the coarse and fine sand filters, and the outlet of the coarse sand filter is connected to the inlet of the fine sand filter. By setting up a filtration system consisting of a chemical dosing mixer, a modified fiber filter, a coarse sand filter, and a fine sand filter, and utilizing the characteristics of modified polypropylene and quartz sand filter media of different particle sizes, combined with the flexible two- or three-stage filtration based on water quality indicators such as seawater turbidity, SDI15, and TOC, and the addition of coagulants when necessary, this system solves the problems of poor treatment effect, high energy consumption, and high investment and operating costs of traditional seawater desalination pretreatment processes, achieving stable effluent quality and reduced costs.

This invention relates to the field of water treatment technology, specifically disclosing a hydraulically driven continuous flow aerobic granular sludge-membrane filtration integrated device and its application. The device includes an influent system, an effluent system, a reactor shell, a membrane module, and an aeration module. A first baffle is installed inside the reactor shell, dividing the interior into an anoxic zone and an aerobic zone. A multi-stage flow guiding mechanism is vertically arranged within the anoxic zone to change the flow direction of the sludge-water mixture. The aeration module is located at the bottom of the aerobic zone, enabling the sludge-water mixture to circulate between the anoxic and aerobic zones. The membrane module is located within the aerobic zone and positioned above the nano-aeration disc. This invention achieves favorable hydraulic conditions under continuous flow, creating a driving force for granulation and enabling rapid formation and stable operation of aerobic granular sludge. The combination of aerobic granular sludge and membrane module filtration improves effluent quality, reduces membrane fouling, shortens the process flow, and reduces floor space requirements.

This invention discloses a modular cascaded coupled multi-stage treatment system and method for mine wastewater, belonging to the field of environmental water treatment technology. It includes a filtration module filled with filter media for particle removal; an adsorption module filled with composite adsorption media for adsorbing heavy metal and organic pollutants; a reaction module filled with slow-release reaction media for removing heavy metal ions from wastewater through sulfide precipitation and reduction reactions; and a sedimentation module to slow down the reaction time and cause the water flow to reverse vertically. This invention achieves multi-stage synergistic removal of suspended solids, organic matter, and heavy metals from mine wastewater through a combination of sand, fly ash ceramsite, and heavy metal treatment agents; it relies on gravity flow due to the natural slope of the mine shaft for gravity-based operation; its modular design allows for flexible series connection to adapt to different pollution levels; and the semi-open tank facilitates media replacement, with heavy metals solidified in the reaction module, resulting in minimal secondary pollution.

The utility model belongs to wastewater biological treatment technical field discloses a kind of zeolite fluidized bed intermittent nitrosation reactor, including water inlet system, aeration system, stirring device, screen gauze isolator, overflow weir, water outlet system and reactor body;The water inlet system is connected with the bottom of reactor body, the aeration system is connected with the bottom of reactor body, the stirring device extends vertically along reactor body longitudinal center line, paddle is located in reactor middle work area, the screen gauze isolator is straddled in the opening at the upper end of the reactor body, the overflow weir is arranged in the upper portion of the reactor body, the water outlet system is connected with the overflow weir, the reactor body is filled with zeolite filler.The utility model utilizes natural zeolite to adsorb and enrich free ammonia, realizes the efficient enrichment of low concentration free ammonia, and the trans-arched gauze isolator isolates zeolite biofilm in reaction area, realizes the separation of flocculent sludge, and improves effluent quality.

This invention discloses a nucleogranulation device and its operating method, comprising an annular water distribution pipe installed below a tank, a sludge pipe installed on the tank at the bottom of the annular water distribution pipe, and a granulation reaction zone, a concentration zone, a separation zone, an inclined plate clarification zone, and an overflow trough arranged sequentially from bottom to top above the annular water distribution pipe. A packing device is installed in the separation zone; a drain outlet is provided on the overflow trough; a hollow barrel is located at the center of the granulation reaction zone, and an axial flow pump is installed inside the hollow barrel. The axial flow pump is used to pump part of the water in the concentration zone into the central hollow barrel and transport it to the center of the annular water distribution pipe, with the hollow barrel located directly above the annular water distribution pipe. A water flow disperser is installed at the bottom of the annular water distribution pipe. This invention can increase the operating load, increase the treatment depth, effectively improve the operating load and sludge concentration effect, and the discharged sludge can be directly dewatered, thus improving the effluent quality.

The application discloses a method for controlling membrane pollution of an anaerobic membrane bioreactor by jointly adding biological surfactant and filler, which is used for treating municipal sewage by the anaerobic membrane bioreactor (AnMBR), biological surfactant and filler are added into the AnMBR, and a membrane assembly and a mechanical stirring device are arranged. The membrane pollution control process is that a certain concentration of biological surfactant and a certain volume ratio of filler are jointly added into the reactor. In the AnMBR reactor, the biological surfactant is added to promote the dissolution of viscous substances and insoluble substances in the sludge mixed liquid, the dissolved organic molecules are wrapped by micelles formed by the surfactant, and the contact of organic pollutants with the membrane surface is reduced. Further, the filler is added, which is beneficial to the adhesion of sludge flocs in the suspension and the adsorption of the biological surfactant solubilization, and the concentration of sludge flocs and organic matters in the mixed liquid is reduced, so that the membrane pollution of the AnMBR is effectively slowed down under the premise of ensuring the operation efficiency of the reactor.