Concrete mixing station production sewage treatment, regeneration and reuse system and method

Abstract

The invention discloses a concrete mixing station production sewage treatment, regeneration and reuse system, which comprises a dehydration separation system used for carrying out solid-liquid separation on sewage entering the dehydration separation system, dividing the treated sewage into clear water and neutralized water, inputting the neutralized water into a carbon dioxide neutralization device, and introducing the carbon dioxide neutralization device into the dehydration separation system; inputting the clear water into the clear water storage pool; the carbon dioxide neutralization device is used for receiving the neutralization water input by the dehydration separation system and injecting carbon dioxide into the neutralization water, the neutralization water is neutralized to form mixed water, and the mixed water is input into the dehydration separation system; a closed cycle is formed between the dehydration separation system and the carbon dioxide neutralization device. According to the invention, the alkaline neutralized water is neutralized, and a closed cycle is established between the neutralizing device and the dehydration separation system, so that the discharge of wastewater is avoided, and the regeneration and reuse ratio of sewage is increased.

Description

technical field [0001] The invention relates to the field of sewage treatment in a concrete mixing station, in particular to a system and a method for treating and reusing production sewage in a concrete mixing station. Background technique [0002] The production of the concrete mixing plant requires a lot of water, and the large amount of sewage produced by the concrete mixing plant cannot be directly discharged. The water used in the concrete mixing station comes from groundwater resources or industrial water, and the cost of water intake for production is relatively high. In order to reduce the cost of production water and increase people's awareness of environmental protection, it is required to rationally recycle the sewage from the concrete batching plant. [0003] When treating the sewage in the concrete mixing plant, there is usually still the discharge of waste water. According to the pollution of the sewage, the proportion of waste water discharge will fluctuate ...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of the existing technology that after the sewage treatment of the concrete mixing plant, people will discharge waste water and cannot perform a high proportion of regeneration and reuse, and provide a regeneration and reuse of the production sewage of the concrete mixing plant The system and method, by neutralizing the alkaline neutralized water, and establishing a closed cycle between the neutralization device and the dehydration separation system, avoiding the discharge of waste water and increasing the proportion of sewage regeneration and reuse

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