Organic sewage treatment and recovery system

Abstract

The invention discloses an organic sewage treatment and recovery system. The system comprises a sewage pool, an acidification pool, a fermentation tank, a desulfurization tower and a filter pressing device; a first pump is arranged between the sewage tank and the acidification pool; sewage in the sewage pool is pumped into the acidification pool through a first pump; the acidification pool is communicated with a sulfuric acid solution device; a second pump is arranged between the acidification pool and the fermentation tank; an inlet of the second pump extends into the liquid level in the acidification pool, and the acidification pool is pumped into the fermentation tank through the second pump; a feed port is formed in the front end of the fermentation tank, a discharge port is formed inthe rear end of the fermentation tank, and the feed port is communicated with an outlet of the second pump; a gas storage space is formed in the top in the fermentation tank and is communicated with afeeding hole of the desulfurizing tower through a pipeline; a gas outlet of the desulfurizing tower is communicated with gas storage equipment, and a liquid outlet of the desulfurizing tower is communicated with the acid liquor pool; and an inlet of the filter pressing device is communicated with a discharge port at the rear end of the fermentation tank.

Description

technical field [0001] The invention relates to sanitation treatment equipment, in particular to an organic sewage treatment and recovery system. Background technique [0002] The activated sludge method is the earliest and most widely used biological treatment technology, and the main method of biological sewage treatment with activated sludge as the main body. The basic process of the activated sludge method includes: the sewage is subjected to primary sedimentation treatment, aeration treatment and secondary sedimentation treatment to obtain water and sludge, and part of the sludge is returned to participate in aeration treatment; the other part of the sludge is used as excess sludge Drain the system. Activated sludge is a general term for microbial populations and the organic and inorganic substances to which they are attached. Microbial groups mainly include bacteria, protozoa and algae. In the process of activated sludge's life activities, the microbial groups invol...

AI Technical Summary

Problems solved by technology

With the continuous improvement of drainage water quality requirements, the currently used activated sludge treatment equipment can no longer meet the requirements

Due to the lack of carbon sources in the sewage, the efficiency of the existing process technology for the utilization of carbon sources is also low. Most of the carbon sources are oxidized into carbon dioxide and synthesized microbial cells, which cannot meet the demand for carbon sources and require additional carbon sources. To achieve the goal of effluent water quality, the COD removal rate in sewage is low, the cost of organic sewage treatment and recovery is high, the recovery rate is low, and it is inconvenient to use

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