A sewage treatment process

A sewage treatment and sewage technology, which is applied in water/sewage treatment, water/sewage multi-stage treatment, sludge treatment, etc., can solve the problems of water resource waste, the recovery rate of sewage treatment is difficult to reach 90%, and the surrounding environment pollution, etc. Achieve the effect of protecting the environment, realizing zero discharge of sewage and saving water resources

Active Publication Date: 2020-04-28
HEBEI BOHAI COAL COKING CO LTD
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  • Claims
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Problems solved by technology

[0004] At present, ultrafiltration and microfiltration technology are widely used in wastewater treatment systems to improve the recovery rate of sewage treatment. It is generally difficult to achieve a recovery rate of 90% for sewage treatment, which not only causes waste of water resources, but also wastes water. Direct discharge will also cause certain pollution to the surrounding environment

Method used

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  • A sewage treatment process

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Embodiment Construction

[0029] In order to deepen the understanding of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.

[0030] Such as figure 1 Shown, the present invention relates to a kind of sewage treatment process, comprises the steps:

[0031] a. New water treatment process

[0032] The water enters the new water adjustment tank from the reservoir, and the flocculant polyaluminum chloride and coagulant polyacrylamide are added through the new water lift pump, and then the new water with additives is sent into the 500m 3 The Xinshui high-density pool is further treated in the Xinshui high-density pool to improve the water quality. The turbidity of the effluent is reduced to below 10mg / L. After the turbidity drops below 3mg / L, it flows into the new water intermediate pool, enter...

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Abstract

The invention discloses a sewage treatment process, comprising the following steps: a. fresh water treatment process; b. sewage treatment process; c. concentrated water treatment process; d. waste material treatment process; Continuous and high-efficiency operation greatly improves the sewage water production and recovery rate. The ultrafiltration process is added in the sewage treatment process, which solves the problems of reverse osmosis fouling and low recovery rate; the weak acid bed process is added in the concentrated water treatment system to solve the fouling problem of concentrated water reverse osmosis, through the above process Through innovation and transformation, the sewage recovery rate has increased from 70% to 90%; the remaining 10% of the concentrated water is used for ironmaking and slag flushing in steelmaking plants, which solves the problem of sewage outflow and realizes zero sewage discharge, which not only saves water resources, And protect the environment.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment process which can obviously improve the recovery rate of sewage and can operate continuously and efficiently. Background technique [0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements of a certain water body for drainage or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and more and more enters the daily life of ordinary people. There are many elements, so the processing is more troublesome. [0003] The core desalination equipment of the sewage treatment plant is the reverse osmosis device, and the previous pretreatment processes provide protection for the reverse osmosis. After the reverse osmosis membrane is put into use, it will be polluted ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04
CPCC02F1/001C02F1/441C02F1/444C02F1/5245C02F1/56C02F1/58C02F9/00C02F11/122C02F2301/08
Inventor 高清元宋英杰孙丹娜丁佳敏赵亚东尹宗伟杨晓伟冯帅帅
Owner HEBEI BOHAI COAL COKING CO LTD
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