A device for recycling sewage by steam stripping

Abstract

The invention provides a device for stripping and recycling sewage, comprising: a sewage sedimentation tank, the bottom of the sewage sedimentation tank communicates with the top of the stripping tower through a pipeline; the bottom of the stripping tower communicates with the first water quality detection separator through a pipeline The bottom of the first water quality detection separator is connected to the top of the separator in two ways, which are qualified water quality and unqualified water quality. Among them, the qualified water quality is connected to the recycling device through the pipeline, and the unqualified water quality is connected to the sewage sedimentation tank through the pipeline. The device for stripping and reusing sewage provided by the present invention uses a stripping tower to carry out stripping and separation of the washing water and water sealing water in the sewage settling tank, and recycles the water after the stripping is qualified, saving a lot of water and reducing the Cost of production.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a device for stripping and recycling sewage. Background technique [0002] figure 1 It is a structural schematic diagram of a prior art sewage treatment device, such as figure 1 As shown, the device includes: a water tank 1, a feed water pump 2, a finished product storage tank 3, and a sewage sedimentation tank 4. In the production process of carbon disulfide using natural gas and sulfur as raw materials, the product carbon disulfide is stored in the finished product storage tank, the bottom of the storage tank is carbon disulfide, and the top of the storage tank is to use fresh water as a water-sealed storage tank. The water washes out the hydrogen sulfide contained in the carbon disulfide. The water after washing in the finished product storage tank tank area or the water quality of the water sealing water will be directly discharged into the sewage sedimentation ta...

AI Technical Summary

Problems solved by technology

The water after washing in the finished product storage tank tank area or the water quality of the water sealing water will be directly discharged into the sewage sedimentation tank. On the one hand, the fresh water in the fresh water tank is used to provide the finished product storage tank with the feed water pump, so as to seal up carbon disulfide. When the quality of water seal water is qualified, return to the fresh water tank for recycling. When the water quality of water seal water is unqualified, it is directly discharged into the sewage sedimentation tank; Hydrogen sulfide in carbon disulfide is washed out, and the resulting washing water is directly discharged into the sewage settling tank, and the sewage in the sewage settling tank is not recycled. In this way, a large amount of water resources will be wasted every year, and at the same time, production costs will be increased.

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