Sewage treatment device

Abstract

The invention discloses a sewage treatment device, which is formed by combining the following seven parallel and communicated tank units: an adjustment tank, a No.1 biochemical tank, a No.2 biochemical tank, a No.3 biochemical tank, a No.4 biochemical tank, a return tank and a discharge tank. Microbes, wood biological carriers and aeration pipes with aeration micropores on the surface and with certain distance from the tank bottom are placed into the seven tank units respectively; the wood biological carriers are matched with directional aeration flow fields to form accumulations of different areas in the tank so that simulated natural environment areas in which the same natural microbes can coexist are formed in the tanks, namely an anaerobic area, an anoxic area and an aerobic area. Therefore, organic substances in the sewage are quickly decomposed; the residual organic sludge phenomenon is thoroughly eliminated; full fermentation, decomposition and digestion for the organic substances are effectively performed; and the whole treatment device does not produce bad smell, does not grow flies, purifies the sewage to form odorless and tasteless purified water, and thoroughly achieves the effect of protecting the ecological environment. The device has the advantages of scientific design and reasonable structure, and is suitable for popularization.

Description

(1) Technical field: [0001] The invention relates to a sewage treatment device, in particular to a sewage treatment device which can completely eliminate organic matter and organic biological sludge in a sewage treatment pool, and eliminate the odor of the whole device to achieve sewage purification effect. It belongs to the technical field of environmental protection equipment. (two) background technology: [0002] The sewage treatment devices currently used in domestic sewage, food manufacturing sewage, catering sewage, livestock sewage, etc. are mainly based on activated sludge method and biofilm method. However, this treatment method will cause excess organic sludge produced, causing serious pollution to the environment. At the same time, general domestic sewage and industrial wastewater contain proteins, fats, carbohydrates and other substances, which are prone to foul odor after being treated by traditional sewage equipment. The stench is easy to cause the breeding o...

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Problems solved by technology

[0007] 1. The process is complicated, the process is troublesome, and the effect is not good;

[0008] 2. The decomposition efficiency of the traditional process is low and the treatment is not thorough, so the organic sludge in the sewage tank cannot be completely eliminated. Not only must it be eliminated after a certain period of time, it is time-consuming and labor-intensive and uneconomical, and it will also produce stench, which is serious affect sanitation

[0009] 3. Because the sludge sedimentation treatment method is adopted in each pool, the positions of the water inlets and outlets must not be at the same water level, so the construction is often restricted by the terrain, making construction impossible or difficult

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