In the whole process of sewage treatment, from the water inlet of sewage treatment plant to the water outlet, the equipment used is more than a variety of pumps.
Through combing, it is found that the pumps commonly used in sewage treatment plants are mainly divided into three categories: sewage lifting pump, dosing pump and air diaphragm pump. The following is a brief introduction of these three commonly used pumps.
The main role of sewage lift pump is to pump sewage from a pool to another pool, or from a sewage treatment link to another treatment link, to achieve the transfer of sewage, in the sewage treatment process used more.
The sewage lifting pump is placed at the inlet of the sewage treatment plant, and the sewage transported from the sewage pipe network has a low water level, so the sewage lifting pump is needed to pump the sewage with a low water level to the subsequent treatment process equipment.
Many sewage treatment facilities are set according to the elevation, and through the difference of water level, the sewage can realize the self-flow and flow to the follow-up facilities automatically, so as to reduce energy consumption.
Another function is to pump the treated sewage from the previous pool to the next one for a different sewage treatment process.
This kind of sewage lifting pump mainly has high head and large flow, which can meet the requirements of rapid water transport and improve the efficiency of sewage treatment.
Can choose QW submersible sewage pump, ZW self-priming sewage pump, YW liquid sewage pump, GW pipeline sewage pump, LW sewage pump.
Dosing pump is mainly to add sewage treatment agents to the sewage tank, so that the neutralization reaction occurs between sewage treatment agents and some pollutants in sewage, remove pollutants, purify water.
The sewage treatment agent is prepared in the medicine box, and then put into the solution box after being stirred evenly by the agitator.
The dosing pump inhales the liquid from the solution box, mixes it with the water of working medium, and transports it to the polluted water body to realize the purpose of dosing.
The physicochemical properties of the wastewater treatment agents in contact with the dosing pump are different. According to the characteristics of the dosing pump, the smoothness and accuracy of dosing process should also be considered.
The main function of sludge pump is to extract the sludge produced after sewage treatment from the bottom of the tank to do the sludge treatment.
Sludge pump is mainly used in producing sludge tank, such as sedimentation tank, sludge tank, biochemical tank, filter tank and so on.
The sludge pump pumps the generated sludge to the filter press, the filter press to remove the water in the sludge, sludge treatment.
The pressure of the sludge pump determines the water content of the sludge pumped by the sludge pump, which has a direct impact on the sludge treatment of the filter press behind.
G type single screw pump, NL mud pump, QW sludge pump, AODD pneumatic sludge pump.
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