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Comprehensive treatment method and system for sludge from city sewage processing

A comprehensive treatment and urban sewage technology, applied in sludge treatment, biological sludge treatment, sludge treatment through temperature control, etc., can solve the problems of secondary environmental pollution, high water content, increased sludge treatment costs, etc. The effect of reducing operating costs

Inactive Publication Date: 2007-09-19
高斌 +2
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  • Abstract
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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] In the embodiment shown in Fig. 1, it includes an inclined tube sedimentation tank 1, and also includes a sludge thickening tank 2, a high-pressure mud pump 3, a heat exchanger 4, an anaerobic reactor 5, a high-pressure mud pump 6, and sludge dehydration machine 7, biogas storage tank 8, biogas and firewood 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 sludg...

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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...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/04C02F11/02C02F11/18B09B3/00C02F1/52
CPCY02E50/343Y02E50/30Y02W10/20
Inventor 高斌李利军高腾霄
Owner 高斌