Domestic sewage treatment equipment The preferred equipment to improve the living environment
The domestic sewage treatment equipment can treat the comprehensive wastewater of comprehensive domestic sewage and its similar organic sewage. The secondary treatment process adopts the contact oxidation process, and its treatment effect is better than that of the completely mixed or the two-stage series completely mixed biological contact oxidation tank. It is smaller than activated sludge, has good adaptability to water quality, good impact load resistance, stable effluent water quality, and does not produce sludge swelling. The new elastic three-dimensional filler is used in the domestic sewage treatment equipment, which has a large surface area, and the microorganisms are easy to hang the film and remove the film. Under the same organic load condition, the removal rate of organic matter is high, and the solubility of oxygen in the air in the water can be improved.
The process features of domestic sewage treatment equipment are the flocculation tank for pretreatment and the addition of chemicals. This chemical flocculation pretreatment can not only increase the sedimentation performance of suspended matter, but also greatly reduce the insoluble CODcr by increasing the removal rate of SS, also can remove some macromolecular difficult to degrade organic matter such as lignin, cellulose, organic chlorine and so on. The principle is that after adding flocculant, the fine fibers suspended in water condense into large particles, and these particles of various shapes also have porous surfaces, which have certain adsorption effects on some macromolecular organic matter.
Compared with anaerobic pretreatment and reactive pretreatment, the investment cost of chemical pretreatment is lower, and it is easy to control and manage, but the amount of chemical additives is large, and the operating cost is greatly increased. When starting the domestic sewage treatment equipment, check the circuit, whether the wiring control cabinet line is correct, and whether the voltage and current meet the requirements. The control cabinet can control a submersible pump and a fan at the same time, and is also equipped with manual and automatic control systems.
When the domestic sewage treatment equipment starts the pump, check whether the pump pipeline is leaking and absorbing water, and whether it is blocked. The water pump of the buried sewage treatment equipment adopts the anti-clogging and tear submersible sewage pump, and the control of the water pump is completed by the level controller by detecting the liquid level in the sewage tank. When the liquid level reaches the working water level from low to high, the working pump is started. If the liquid level is low to the warning water level, the working pump is turned off. When starting the fan, check whether the rotation direction is correct, and do not reverse. Domestic sewage treatment equipment control by manual and automatic two control methods, the first manual control, through the panel key switch, manual control of submersible pump, fan, etc. open, after everything is normal, automatically transferred to automatic control. Sedimentation tank sludge control, solenoid valve air lift sludge, sludge discharge period is 8 hours, sludge discharge time distribution box has been set automatic control.
The whole equipment treatment system is equipped with automatic electrical control system and equipment fault alarm system, safe and reliable operation, usually do not need special management, only need to timely care and maintenance of the equipment. Reducing investment costs by eliminating the need for equipment such as compression vessels, air compressors and circulating pumps. If the equipment is used in cold areas, the inspection hole can be raised so that the equipment is buried in the frozen soil. Low noise, no odor, high pollutant degradation efficiency, flexible use of equipment. Domestic sewage treatment equipment adopts fiberglass, stainless steel structure, with corrosion resistance, anti-aging and other excellent characteristics, the service life of the membrane component can reach more than 3 years; The service life of the main equipment is more than 20 years.