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Safety recycling method for solid-liquid separation of sludge water of water supply plant

A waterworks, solid-liquid separation technology, applied in the direction of dehydration/drying/concentrated sludge treatment, oxidation treatment of sludge, etc., can solve the problem of not realizing safe reuse, so as to improve sludge dewatering performance, increase efficiency, reduce The effect of water intake

Inactive Publication Date: 2017-08-25
北京尚水清源水处理技术有限公司
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Problems solved by technology

However, in the existing technology, the Fenton oxidation technology has not been fully utilized, and safe reuse has not yet been realized.

Method used

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  • Safety recycling method for solid-liquid separation of sludge water of water supply plant
  • Safety recycling method for solid-liquid separation of sludge water of water supply plant
  • Safety recycling method for solid-liquid separation of sludge water of water supply plant

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Embodiment Construction

[0017] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and schemes made within the spirit and scope of the present invention.

[0018] In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0019] In the following paragraphs the invention is described more specifically by way of example with reference to the accompanying drawings. It should be noted that all the drawings are in simplified form and use inaccurate scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of t...

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Abstract

The invention discloses a safety recycling method for solid-liquid separation of sludge water of a water supply plant. The method sequentially comprises a chemical conditioning process, a high-pressure filtering process and a membrane press filtering process, and comprises the following specific steps of (1) concentrating sludge of running water through gravity and treating by adopting a Fenton oxidation technology; (2) conditioning through the Fenton oxidation technology, generating flocs in the sludge and adding a few of organic macromolecule flocculants to carry out secondary construction of the flocs; (3) carrying out deep dehydration on conditioned sludge of the running water by adopting a filter device; and (4) recycling a clear liquid as inlet water of the water supply plant and transporting a mud cake outward. The dehydration effect of the sludge is improved, and reflux recycling of the sludge water is achieved.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a safe reuse method for solid-liquid separation of sludge discharged from a waterworks. Background technique [0002] While producing a large amount of domestic and production water, the waterworks also produce a large amount of sludge, which mainly comes from the sludge discharge water from the sedimentation tank and the backwash wastewater from the filter tank, which account for approximately the total net water volume of the waterworks 4-7%. Among them, the backwash sludge water of the filter is relatively large (accounting for about 3.5-5% of the water production), and the sludge moisture content is relatively high, as high as 99.9%. The sedimentation tank sludge water accounts for about 1.5-2% of the water production, and the moisture content is relatively low Low (99.7%). It can be refluxed through static settling, but the water content is still around 99% after ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/14C02F11/12C02F11/08
CPCC02F11/08C02F11/12C02F11/14
Inventor 虞红波杨鹏张伟军王东升
Owner 北京尚水清源水处理技术有限公司
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