Sewage treatment device

Abstract

A sewage treatment device comprises a box body, a screening mechanism, a scraper mechanism, a compression mechanism, a water inlet, a dosing port, a stirring mechanism, a discharging mechanism, supporting legs, oil stations and a supernate outlet, the multiple supporting legs are arranged at the bottom of the box body, the screening mechanism is arranged on the upper portion of the box body, the water inlet is formed in the top of the screening mechanism, and the multiple oil stations are arranged on one side of the water inlet; the stirring mechanism is arranged at the bottom of the screeningmechanism, the dosing port is formed in the side wall of the upper part of the stirring mechanism, the supernatant outlet is formed in the side wall of the box body, the scraper mechanism is arrangedat the bottom of the stirring mechanism, the compression mechanism is arranged on one side of the scraper mechanism, and the discharging mechanism is arranged at the bottom of the compression mechanism. Impurities such as floating objects and dried branches are effectively filtered and separated, sludge is rapidly separated, and the sludge is treated and recycled in a centralized mode.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a sewage treatment device. Background technique [0002] As we all know, sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and it has also increasingly entered the daily life of ordinary people. Urban sewage treatment refers to the measures taken to change the nature of sewage so that it will not cause harm to environmental waters. Urban sewage treatment is generally divided into three levels: first-level treatment, which uses physical treatment to remove insoluble pollutants and parasite eggs in sewage; second-level treatment, which uses biological treatment to oxidize and degrade various complex organic substances in sewage It is a simple substance; the tertiary treatment is to apply chemical precipitation method, bioc...

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Problems solved by technology

[0003] However, the existing sewage treatment has the following problems that are difficult to solve: 1) The amount of sewage to be treated is large, and the sewage contains a large amount of impurities such as floating objects, dead branches, leaves, plastic bags, etc., which are prone to blockage or affect sludge precipitation. ; 2) In the static sedimentation process, the sedimentation time of the sludge is long, and the amount of sedimented sludge is difficult to collect concentratedly. The sludge treatment needs to extract the supernatant, and then compress and separate the treatment. The sludge treatment efficiency is low. This means that the amount of sewage to be treated is limited

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