What are the sewage treatment equipment?

Sewage treatment equipment mainly includes the following categories: air flotation machine Air flotation machine is a machine that uses small bubbles or tiny bubbles to produce impurities on the surface of the medium. The air flotation device can be used in some small water bodies whose specific gravity is close to that of water, and it is difficult to sink and float due to its own weight. Application scope of flotation machine: separating small suspended solids, algae and other tiny aggregates in surface water. Recover useful substances from industrial wastewater, such as pulp in papermaking wastewater. Replace the secondary sedimentation tank to separate suspended solids such as sludge from concentrated water. Aerator Aerator (aerator) directly injects "micro bubbles" into untreated sewage through aeration impeller. Under the joint action of coagulant and flocculant, suspended solids undergo physical flocculation and chemical flocculation, thus forming large flocs of suspended solids. Under the floating action of bubbles, "floc" floats to the liquid surface to form scum, and the scum is separated from the water by a slag scraper. There is no need to clean the nozzle, and there will be no blockage. Aerator (aerator) consists of submersible pump, ejector, diffuser, suction pipe and hose. Drum filter microfilter is a drum screen filter. 80~200 mesh/square inch microporous screen is fixed on the drum filtration equipment, and the purification device realizes solid-liquid separation by intercepting solid particles in aquaculture water. Microfiltration occupies a small area, has a large production capacity (250-36000m3/d) and is convenient for operation and management. It has been successfully applied to water supply and wastewater treatment. Centrifuge centrifugation is to use the powerful centrifugal force generated by the high-speed rotation of the centrifuge rotor to accelerate the settling speed of particles in the liquid and separate substances with different sedimentation coefficient and buoyancy densities in the sample. Therefore, it is necessary to use a centrifuge to generate strong centrifugal force, forcing these particles to overcome diffusion and produce settling motion. Centrifuge is mainly used to separate solid particles in suspension from two immiscible liquids with different densities in liquid or emulsion. Sludge dewatering machine sludge is the inevitable product of sewage treatment plants and sewage treatment plants. There are three kinds of sludge in sewage treatment plants: physicochemical sludge, biochemical sludge and mixed sludge. At present, the commonly used sludge dehydrators in China are centrifugal, filter belt, spiral ring and plate-frame type. The sludge dehydrator has the characteristics of automatic control operation, continuous production and stepless speed regulation, and is suitable for all kinds of sludge. It is suitable for sludge dewatering in water supply and drainage, papermaking, casting, leather, textile, chemical industry, food and other industries. What equipment does the sewage treatment plant have? The main function of sewage treatment equipment is to effectively treat domestic sewage and similar industrial organic wastewater, and prevent sewage and pollutants from directly flowing into the water area, which is of great significance to improving the ecological environment, upgrading the city's grade and promoting economic development. Sewage treatment equipment mainly refers to integrated sewage treatment equipment, also known as buried sewage treatment equipment or domestic sewage treatment equipment. Sewage treatment equipment usually refers to the mechanical equipment in sewage treatment system, including: screw dehydrator, air flotation machine, aerator, microfilter, centrifuge, grid decontamination machine, oil-water separator, filter press, sludge scraper, decanter, sludge dehydrator, submersible mixer, screw conveyor, sludge pump, etc. What are the sewage treatment facilities? With the development of sewage treatment technology, the mechanization and automation of sewage treatment plants are constantly improving, and more and more equipment is used, which is becoming more and more complicated. It can be divided into the following categories: special equipment: grate slag remover, surface aerator, rotary brush aerator, submersible propeller, vertical mixer, sand scraper, mud scraper, sludge thickener, mud scraper, sludge digester mixing equipment, liquid medicine mixer, sludge dehydrator, etc. General equipment: various sewage pumps, sludge pumps, metering pumps, screw pumps, air compressors, Roots blowers, centrifugal blowers, electric hoists, bridge cranes and various electric valves, hoists and check valves. Electrical equipment: AC /DC motor, variable speed motor, starting switch equipment, lighting equipment, lightning protection equipment, power distribution equipment, etc. Equipped with the above special equipment and general equipment. Instruments and meters: electromagnetic flowmeter, ultrasonic flowmeter, air flowmeter, liquid level meter, dissolved oxygen meter, pH meter, continuous sampler, CODCr meter, balance and various laboratory analytical instruments. Domestic sewage treatment equipment Domestic sewage treatment equipment uses various facilities, equipment and technologies to separate and remove pollutants contained in sewage from water, transform harmful substances into harmless substances and useful substances, purify water quality and make full use of resources. At present, it has been widely used in a series of domestic sewage treatment such as rural domestic sewage treatment, urban-rural fringe sewage treatment, enterprise and mine domestic sewage treatment, and the effect is very obvious. According to the domestic sewage treatment standard, the treatment method with stable treatment effect, less sludge output and energy saving should be selected. Domestic sewage treatment technology is actually the application and combination of the above technologies. According to the process and treatment procedure, the domestic sewage treatment device technology can be divided into pretreatment technology, primary treatment technology, secondary treatment technology, advanced treatment technology and sludge treatment technology, as well as final sludge disposal. Green Star Environmental Protection Group is an environmental consulting, R&; D exhaust gas treatment solution provider integrating design, manufacturing, equipment sales, system integration and intelligent operation and maintenance. Focus on waste gas treatment/sewage treatment/sewage deodorization/online monitoring 13, a new third board listed company, multi-qualification patent technical support, and a world top 500 waste gas treatment partner.