Oil-removing and slag-skimming device for sewage treatment plant

Abstract

The invention discloses an oil-removing and slag-skimming device for a sewage treatment plant. The oil-removing and slag-skimming device structurally comprises an external power line, a water outlet,a multiple oil-removing and slag-skimming device, a maintenance door, a transparent observation window, a control panel, a protective shell and a water inlet, wherein the lower end of the water inletis vertically embedded into the upper end of the protective shell; the lower end of the control panel is welded with the front end of the protective shell by a pin rod; the left end of the external power line is embedded into the right end of the protective shell; the left end of the water outlet is embedded into the right end of the protective shell; the back part of the transparent observation window is embedded into the front end of the maintenance door. The oil-removing and slag-skimming device for the sewage treatment plant disclosed by the invention has the beneficial effects that the combination of an air flotation method and a flocculation method is adopted, oil-water separation can be quickly carried out by the air flotation method, the separated oil drops are adsorbed into floccules by the flocculation method and then are filtered, and raw water reaches the standard level for purification use in single purification, so that the purification cost is reduced.

Description

technical field [0001] The invention relates to an oil removal and scum removal device for a sewage treatment plant, which belongs to the field of sewage treatment. Background technique [0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for drainage or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, and catering. , and more and more into the daily life of ordinary people. [0003] In the prior art, when treating oily sewage, since the oil stains in the oil residue sewage are difficult to completely separate, the oil content in the sewage processed once is relatively high, resulting in more purification costs for multiple processing and purification. Contents of the invention [0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide an ...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide an oil removal and scum removal device for a sewage treatment plant to solve the problem that the oil stains in the oil residue sewage are difficult to completely remove when the prior art treats oily sewage. Separation, the oil content in the single-processed sewage is high, which leads to the problem that more purification costs are increased for multiple processing and purification

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