Industrial wastewater treatment and recycling methodMethod for treating and recycling industrial wastewater

Abstract

The invention discloses an industrial wastewater treatment and recycling method. According to the method, a first motor is started to work, a plurality of groups of first connecting pipes and curved bars are driven to rotate through gears and conveying chains, and a filter cartridge is driven to rotate through a connecting piece when the first connecting pipes rotate, so that an outer cylinder rotates in a purification tank, and therefore, the industrial wastewater is centrifugally filtered; the curved bars rotate, and a spraying plate repeatedly rotates along the bottom of the box body through a sleeve and a connecting rod, so that a flocculating agent solution input from the connecting pipe is sprayed out from the spraying plate along the connecting hose and is uniformly sprayed into water in the purification tank; and the flocculate in an impurity removal cylinder is lifted up along a scraper blade and filtered through first filter holes of the scraper blade, when the scraper blade operates to the top surface of the impurity removal cylinder, the flocculate on the scraper blade slides into a slag removal pipe, and meanwhile, the treated industrial wastewater in the impurity removal cylinder flows out of a drainage pipe and enters a next treatment process. The working efficiency of industrial wastewater purification treatment is improved.

Description

technical field [0001] The invention belongs to the technical field of industrial waste water, relates to a method for water treatment and recycling, in particular to a method for treating and recycling industrial waste water. Background technique [0002] Industrial wastewater (industrial wastewater) includes production wastewater, production sewage and cooling water. pollutants. There are many types of industrial wastewater with complex components. For example, electrolytic salt industrial wastewater contains mercury, heavy metal smelting industrial wastewater contains various metals such as lead and cadmium, electroplating industrial wastewater contains various heavy metals such as cyanide and chromium, petroleum refining industrial wastewater contains phenol, and pesticide manufacturing industrial wastewater contains Contains various pesticides, etc. Since industrial wastewater often contains a variety of toxic substances, polluting the environment is very harmful to ...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that in the prior art, industrial sewage is usually filtered first, and then flocculants are added to remove the flocs in the water. However, the structure of the traditional filter device is relatively simple, and only one filter screen can be set. However, this working method will make the industrial sewage treatment efficiency not high, and the impurity removal effect is not high; the filtration and the addition of flocculation machines are operated separately, which affects the efficiency of the entire industrial sewage treatment; the addition of flocculants produces The flocs will be mixed in the water, and the traditional treatment of flocs is usually carried out by using a filter screen, which leads to the problem of frequent cleaning and replacement, and a method for industrial wastewater treatment and recycling is proposed

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