Waterworks sludge water sludge dewatering process self-control treatment method

Abstract

The invention discloses a waterworks sludge water sludge dewatering process self-control treatment method which is used for treating waterworks sludge water and sludge concentration, and is characterized by comprising the following operation steps: S1, obtaining precipitation conditions through sludge property analysis and static precipitation test; s2, determining the most appropriate medicament type and dosage through a medicament test; s3, using an efficient precipitation concentration tank, and combining the efficient precipitation concentration tank and inclined plate precipitation so that the solid content of sludge in a bottom concentration area is increased, and the sludge directly enters a dehydration procedure to improve the concentration efficiency; and S4, reducing the amount of sludge water entering subsequent equipment through a floating type sludge-water separation device. According to the mode, the treatment process and technical equipment are researched, and compared with a traditional sludge water treatment process, the optimized process and equipment have the advantages that the land occupation of a waterworks is reduced, the engineering investment is reduced, the energy consumption is reduced, and water resources are recycled and economically utilized.

Description

technical field [0001] The invention relates to a process for treating muddy water sludge from a waterworks, and belongs to the field of environmental protection water treatment, in particular to an automatic control treatment method for the dewatering process of muddywater sludge from a waterworks. Background technique [0002] As an important and irreplaceable resource for human beings, water resources are indispensable in the process of human survival and development. In our research on the sludge treatment and sludge disposal of urban waterworks, we found the following problems: [0003] (1) Status quo of sewage sludge treatment in urban waterworks [0004] Most of the water sources of urban waterworks come from surface water bodies such as rivers and lakes. The sludge discharge water produced by the waterworks mainly comes from the sludge discharge water from the sedimentation tank and the backwash water from the filter tank. The sludge in the sludge discharge water is ...

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Problems solved by technology

[0014] At present, the sludge water treatment facilities of the waterworks have been built, and the research on the generation method and physical and chemical properties of the sludge water from the waterworks is not enough. To a large extent, the design and application of the sewage and sludge treatment methods of the municipal industry have not been combined with the waterworks. Reasonable consideration of the process of its own characteristics

[0015] 2) Large footprint

For the waterworks that have been built in cities and towns, most of the sites for sludge water treatment were not reserved in the original design. If new sludge water treatment facilities are built, the sites often cannot meet the requirements

[0017] (3) The operating cost is high, and the operation cannot realize fully automatic control

[0026] (2) A large amount of suspended solids, organic matter and other pollutants contained in the muddy water discharged from the waterworks will cause pollution to the discharged water body

[0027] (3) At present, most of the self-contained factories use aluminum salt as a coagulant. If a large amount of aluminum sludge is discharged into the water body, it will cause harm to aquatic organisms and benthic organisms, thus destroying the ecological balance of the water body.

The traditional waterworks sludge water process adopts sludge collection + advection sedimentation tank + mechanical agitation clarifier + dehydration treatment, which has the problems of large area, high investment cost and high operating cost, and some newly built waterworks have not yet built corresponding facilities. Sludge water treatment measures, for the established waterworks, are restricted by the site, and it is impossible to build new sludge water treatment facilities

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