Wastewater treatment device for producing biodiesel and treatment method of wastewater treatment device

Abstract

The invention discloses a wastewater treatment device for producing biodiesel. The bottom of a neutralization tank is communicated to a liquid inlet of a fourth sewage pump through a pipeline; a liquid outlet of the fourth sewage pump is communicated to the top of an aerobic tank through a pipeline; the bottom of the aerobic tank is communicated to a liquid inlet of a fifth sewage pump through a pipeline; a liquid outlet of the fifth sewage pump is communicated to the top of an anaerobic tank through a pipeline; the bottom of the anaerobic tank is communicated with a wastewater discharging pipe; a mixing chamber is arranged at the upper part of an inner cavity of a flocculation pot body. According to the wastewater treatment device, the mixing chamber is arranged inside the flocculation pot body; when the flow of wastewater is relatively large, a motor is started to drive a stirring rod to rapidly stir and mix the wastewater and a flocculating agent so as to improve the flocculating effect; when the flow of the wastewater is relatively small, a motor is stopped so that energy sources are saved; wastewater flows on flow guide plates to be mixed, and the contact rate between the wastewater and the flocculating agent is increased through spoiling the wastewater.

Description

technical field [0001] The invention belongs to the field of biodiesel wastewater treatment, and in particular relates to a wastewater treatment device for biodiesel production and a treatment method thereof. Background technique [0002] With the development of my country's national economy, the biodiesel industry has developed rapidly, and biodiesel has good economic benefits and market prospects. However, with the development of biodiesel processing, the ensuing environmental pollution problems have also become serious. The organic waste water discharged during production pollutes river water bodies and destroys water sources. It is urgent and imperative to completely solve the pollution problem of biodiesel wastewater. The oil in biodiesel wastewater refers to the renewable diesel fuel that can replace petrochemical diesel oil, which is made from oil crops, wild oil plants, engineering microalgae and other aquatic vegetable oils, animal oils, and catering waste oils th...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a biodiesel production waste water treatment device and its treatment method, to solve the problem that the existing biodiesel waste water treatment device proposed in the above-mentioned background technology is inconvenient to clean up the settled silt during flocculation and sedimentation, and delays During the waste water treatment time, when collecting oil stains floating on the surface of the waste water, the scraping method is often used for collection, which leads to the problem of low collection efficiency

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