Treatment system for sewage plant sludge

A technology of treatment system and sewage plant, applied in the direction of sludge treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of high heavy metal content in sludge, high moisture content of sludge, unstable properties, etc. problems, to achieve the effect of long equipment life, good processing effect and low noise

Inactive Publication Date: 2015-07-15
重庆鼎旺环保园林有限公司
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Problems solved by technology

For large urban sewage treatment plants, due to the discharge of a large amount of industrial wastewater, the content of heavy metals such as zinc, copper, lead, and cadmium in the sludge is often high
In addition, because sludge usually has a high water content, it also has the characteristics of bulky, unstable, perishable, and unfavorable for transportation.

Method used

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  • Treatment system for sewage plant sludge
  • Treatment system for sewage plant sludge

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Embodiment Construction

[0018] A treatment system for sewage plant sludge, the system includes sludge screening equipment 1, sludge concentration tank 2, microwave digestion tank 3, sludge dehydration tank 4, sludge deep dehydration tank 5, sludge fermentation tank 6, sewage Mud drying tank 7, sludge storage tank 8, waste tank 9, methane collection tower 10, dosing system 11, deodorization tower 12, sludge refining tower 13; the sludge used in the sewage treatment process is connected to the sewage The sludge inlet of sludge screening equipment 1, the sludge outlet of sludge screening equipment 1 are connected to the sludge inlet of sludge thickening tank 2 through pipelines, and the mud outlet of sludge thickening tank 2 is connected to the mud inlet of microwave digestion tank 3 through pipelines The sludge outlet of the microwave digestion tank 3 is connected to the sludge inlet of the sludge dewatering tank 4 through a pipeline, and the sludge outlet of the sludge dewatering tank 4 is connected to...

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Abstract

The invention discloses a treatment system for sewage plant sludge. The system comprises sludge screening equipment, a sludge concentration tank, a microwave digestion tank, a sludge dehydration tank, a sludge deep dehydration tank, a sludge fermentation tank, a sludge drying tank, a sludge storage tank, a waste tank, a methane collecting tower, a dosing system, a deodorization tower and a sludge refining tower. Compared with the prior art, the sludge heat value can be about 2900-3000 kcal, the sludge treatment amount per day is 1000t / d, and the sludge moisture content is reduced to about 12%. The sludge concentration tank adopts a continuous gravity concentration tank, and the microwave digestion tank adopts an anaerobic digestion process; the sludge dehydration tank adopts a physical regulating method; the sludge fermentation tank adopts an aerobic fermentation process; and the sludge drying tank adopts a direct heating mode.

Description

technical field [0001] The invention relates to a treatment system for sewage plant sludge, which belongs to the field of solid waste treatment in environmental protection. Background technique [0002] Sludge is an accompanying organism produced in the process of sewage treatment. It is mainly composed of aerobic microorganisms, and includes solid substances such as sediment, fiber, and animal and plant residues mixed in sewage, as well as adsorbed organic matter, metals, germs, and insects. A complex of substances such as eggs. The composition of sludge varies widely, depending on the source of sewage, the nature and proportion of industrial sewage in the service basin, sewage treatment process and season. Usually, sludge contains mineral salts needed for plant growth and development (such as nitrogen, phosphorus, potassium, magnesium, sulfur, calcium and other basic elements) and various trace elements to maintain normal plant growth (such as: iron, manganese, zinc, Cop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00
Inventor 李文新
Owner 重庆鼎旺环保园林有限公司
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