Magnetic powder wet-type adding system and method

Abstract

The invention relates to a magnetic powder wet-type adding system and method, and relates to the technical field of sewage treatment. The magnetic powder wet-type adding system comprises a magnetic powder premixing unit used for uniformly mixing magnetic powder and water, and the magnetic powder premixing unit is communicated with each sewage treatment system through a pipeline; one magnetic powder premixing unit can convey a magnetic powder mixed solution to a plurality of sewage treatment systems, the magnetic powder wet-type adding system has the advantages of reducing the occupied area andsaving the cost, the magnetic powder mixed liquid is added to the sewage treatment systems instead of directly adding magnetic powder, the mixing efficiency of the magnetic powder and wastewater canbe improved to a certain extent, and therefore the wastewater treatment time can be saved. The method comprises the following steps: S1, uniformly mixing THE magnetic powder and water in the magneticpowder premixing unit to obtain the magnetic powder mixed solution; and S2, conveying the magnetic powder mixed solution into each sewage treatment system, and adding the magnetic powder mixed solution into the next sewage treatment system after one magnetic powder mixed solution is added during conveying, so that the method has the advantages that the magnetic powder mixed solution can be quicklyadded in a balanced manner, and the sewage treatment efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a magnetic powder wet addition system and method. Background technique [0002] Adding water treatment magnetic powder (magnetic species) to traditional sedimentation, the magnetic powder can be used to adsorb pollutants, forming dense flocs in the process of mixing and flocculation, and covering fine particle suspensions SS, TP, heavy metals, bacteria, etc. In the floc, increase its surface load, accelerate the settling speed of the floc, thereby reducing the hydraulic retention time of the clarifier, thereby improving the efficiency of sewage treatment. [0003] In the prior art, generally small-scale sewage treatment plants usually add magnetic powder directly into the sewage treatment tank manually when adding magnetic powder, and then set stirring equipment in the sewage treatment tank to mix the magnetic powder and flocs by stirring. . However, if the dry magneti...

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Problems solved by technology

[0005] However, the scale and floor space of sewage treatment plants are limited, not every sewage treatment plant has the ability and capital to expand the magnetic loading tank, and under normal circumstances, sewage treatment plants have more than one treatment system, usually several treatment systems in parallel, so , the construction of a magnetic loading pool is easily limited by the narrow space, and the cost will be high, so it is not easy to implement

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