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Supermatant discharge system and sludge condensation method

A technology of discharge system and sludge tank, applied in the direction of dewatering/drying/concentrating sludge treatment, etc., can solve the problems of large sludge volume, high infrastructure investment, high production and operation cost, etc.

Inactive Publication Date: 2014-06-04
ZHENJIANG WATER IND CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The sludge produced by these processes is large in volume and high in water content. During treatment, the investment in infrastructure construction is high, and the cost of production and operation is high.

Method used

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  • Supermatant discharge system and sludge condensation method

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Embodiment Construction

[0010] A sludge tank supernatant discharge system, it comprises a sludge tank 1, the bottom of the sludge tank is provided with a mud inlet pipe 2, the top is provided with a drain pipe 4; it also includes a sludge discharge device 3, the The sludge discharge equipment includes a sludge discharge pipe, and the inlet of the sludge discharge pipe is located at the bottom of the sludge tank 1 .

[0011] The drain pipe 4 is provided with a control valve 5, and the control valve 5 can be a manual or electric valve.

[0012] In the sludge pond supernatant liquid discharge system described in claim 1, the sludge in the previous sludge treatment equipment enters the sludge pond 1 through the mud inlet pipe 2, and when the sludge settles to the bottom of the sludge pond 1, the upper When the supernatant is in the upper part, open the control valve 5 on the drain pipe 4, discharge the supernatant through the drain pipe 4 on the upper part of the sludge tank 1, and then disch...

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Abstract

The invention relates to a sewage processing device and a sewage processing method, and specifically refers to deposition pond a <{EN0}>supermatant discharge system and a sludge condensation method; the supermatant discharge system comprises the deposition pond; the bottom of the deposition pond is provided with a mud inlet pipe, and an upper portion of the deposition pond is provided with a water discharge pipe; the supermatant discharge system also comprises mud discharge equipment including a mud discharge pipe; an inlet of the mud discharge pipe is positioned on the bottom of the deposition pond; the mud of the previous mud processing equipment enters the deposition pond through the mud inlet pipe, when the mud settles on the bottom of the deposition pond and the supermatant is positioned on the upper portion, the supermatant can be discharged by the water discharge pipe on the upper portion of the deposition pone, and condensation mud is discharged to the next mud processing equipment through the mud discharge equipment; mud water content and mud volume are reduced.

Description

technical field [0001] The invention relates to a sewage treatment device and a sewage treatment method, in particular to a sludge pond supernatant discharge system and a sludge concentration method. Background technique [0002] Activated sludge method is currently the most widely used sewage treatment technology in the world, and a large amount of sludge will be generated during the treatment process. During the operation of the sewage plant, sludge will be generated in the primary settling tank, secondary settling tank, and advanced treatment. Generally, the moisture content of the sludge in the primary settling tank of the sewage plant is about 97%, the sludge moisture content in the secondary settling tank is about 99%, and the sludge moisture content in the advanced treatment is about 99%. The sludge produced by these processes is large in volume and high in water content. During treatment, the investment in infrastructure construction is high, and the cost of produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12
Inventor 胡坚陈恒宝刘孟赵宝康张有仓许立群
Owner ZHENJIANG WATER IND CORP
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