Introduction to sewage treatment plant equipment

Wastewater treatment plant equipment is a series of equipment specifically designed to treat domestic and industrial wastewater, which integrates the functions of anoxic, anaerobic, aerobic, sedimentation, sludge and disinfection tanks. These devices are designed for use in residential complexes, small and medium-sized enterprises or rural areas with the aim of purifying wastewater through an integrated treatment process. Typical treatment steps include pre-treatment, biological treatment, sedimentation, and disinfection to effectively remove suspended matter, organic matter, and pathogens from sewage, and to ensure that discharge water meets prescribed environmental standards.

Sewage treatment plant equipment composition

Sewage treatment plant equipment is composed of a variety of components and treatment units, mainly including the grid control cell unit, A2O unit, BAF unit and UV disinfection unit. Among them, the grating regulating tank is responsible for preliminary filtration and water quality adjustment; The A2O unit contains different types of biochemical cells for biodegradation; BAF unit to further clean water quality; The UV disinfection unit ensures the ultimate elimination of harmful microorganisms. In addition, the treatment system may also include air floats, centrifuges, aerators, etc., as well as various reactors and dosing systems, which work together for the comprehensive purification of sewage.

Sewage treatment plant equipment characteristics

Features of sewage treatment plant equipment include:
1. Compared with the traditional activated sludge method, it has smaller volume, strong adaptability, excellent impact load resistance, and can stably produce high-quality effluent to avoid sludge swelling.
2. Use new materials to promote the adhesion and shedding of microorganisms, improve the solubility of oxygen in water, and improve the treatment efficiency of organic pollutants.
3. Equipped with automatic control system and fault alarm mechanism to ensure safe and efficient operation of equipment and reduce the need for special management.
4. Flexible structure design, can choose ground or underground installation, underground helps to save space and landscaping.

The sewage treatment plant (STP) uses the "A2O+BAF+UV+sterilization" process.

The A2O process, which stands the English stands for anameric anoxic oxic, is done to destroy nitrogen and destroy phosphate by the use of hydrophilic creatures-oxygen-deficient. In the A2O, BOD5, SS and nitrogen and phosphate process in various forms will be removed one by one. In the hydrophobicity and oxygen shortage segments, the plant system is mainly composed of nitrifying bacteria and polyphospourus, and in the iceelement, the phytochemicals are mainly composed of nitrifying bacteria and polyphosporus.

BAF means aerated biological filter tank is the biofilm treatment process that coexist with solid three-phase, liquid and gas, belongs to the technology of sewage biotreatment combined with oxidation and contact purification, Its core technology is the application of foam purification material and the use it as a biological carrier for waste water treatment. A cloth water system set on the top of the BAF tank, it can evenly distributes waste water to the surface of filtration materials, so that drip water can be fully contact with oxygen. Micro-creatures on the surface of the filter material by deforming-and then re-sticking, finally formed a stable biological membrane, will not proceed with an explanation. Because of the pant and oxygen shortage caused in the membrane, there is high operation, the softener can successfully remove the contaminants once it melts through the biological membrane.

Ultraviolet sterilization is through ultraviolet light radiation, destroy and change the DNA structure of the bacteria (deoxyride acid), make bacteria die immediately or unable to produce children, in order to achieve the purpose of germicidal bacteria.

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