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Comprehensive treatment method and system for sludge from city sewage processing

A comprehensive treatment and urban sewage technology, applied in the direction of sludge treatment, flocculation/sedimentation water/sewage treatment, waste fuel, etc., can solve the problems of environmental secondary pollution, low sludge combustion value, waste of precious resources, etc., and achieve reduction The effect of running costs

Inactive Publication Date: 2005-12-14
高斌 +2
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Problems solved by technology

However, the sludge produced by the landfill treatment of urban sewage, because the sludge contains a large number of harmful bacteria, viruses, germs and other organic pollutants, will cause serious secondary pollution to the environment
Using incineration to treat the sludge produced by physical and chemical treatment of urban sewage requires a lot of energy due to its low combustion value and high water content, which will greatly increase the cost of sludge treatment, and waste some valuable resources that could have been recycled.

Method used

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  • Comprehensive treatment method and system for sludge from city sewage processing

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Embodiment Construction

[0027] The technical solution and other beneficial effects of the present invention will be apparent through the detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0028] exist figure 1 In the shown embodiment, comprise a inclined tube sedimentation tank 1, also comprise sludge concentration tank 2, high-pressure mud pump 3, heat exchanger 4, anaerobic reactor 5, high-pressure mud pump 6, swamp dehydrator 7, Biogas storage tank 8, biogas wood hybrid generator 9 and diesel storage tank 10, wherein,

[0029] The sludge discharge pump interface of the inclined tube sedimentation tank 1 is connected to the sludge inlet of the sludge thickening tank 2 through a pipeline, and the sludge outlet of the sludge thickening tank 2 is connected to the high-pressure mud pump 3, the heat exchanger 4 and the drain through the sludge pipeline in sequence. The oxygen reactor 5 and the sludge outlet of the anaerobic reacto...

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Abstract

The present invention discloses comprehensive treatment method and system for sludge from city sewage processing. The method treating sludge from settling tank in city sewage processing system through the following steps: gravitational concentration to reduce volume; adding carbon source material and compound bioactive clastic enzyme to the concentrated sludge; pumping sludge with high pressure pump to heat exchanger and heating; anaerobic reaction; dewatering; etc. The present invention realizes the reuse of resource and recovers great amount of biological energy and high quality organic fertilizer to reduce the operation cost of sewage processing yard.

Description

technical field [0001] The invention relates to a method and system for comprehensive treatment of sludge in urban sewage, in particular to a method and system for comprehensive treatment of sludge capable of realizing resource reuse. Background technique [0002] At present, the treatment methods for the sludge generated in the process of urban sewage treatment at home and abroad are the following methods, anaerobic, facultative, landfill, incineration and so on. The premise of these methods to treat sludge must be the sludge produced by biochemical treatment of sewage, because the harmless treatment of sludge needs to completely rely on microorganisms to degrade and decompose organic pollutants. Microorganisms degrade or decompose organic pollutants. In the process, sufficient nutrients are needed to maintain its own survival and reproduction, which requires balanced nutrients in the sludge, and the sludge produced by biochemical treatment of urban sewage can fully meet th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
CPCY02E50/30Y02W10/20
Inventor 高斌李利军高腾霄
Owner 高斌