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Online sludge conditioning and concentrating system and process

A thickening system and sludge conditioning technology, applied in the direction of sludge treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems that the separation of sludge and water cannot be guaranteed, and it is not conducive to concentration treatment, etc., to achieve Save civil costs, reduce power, and achieve control effects

Pending Publication Date: 2021-04-30
SHANGHAI KAIXIN ISOLATION TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In this dehydration process, only the flocculation operation is performed on the sludge, which cannot guarantee the separation of sludge and water, and is not conducive to the subsequent concentration treatment

Method used

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  • Online sludge conditioning and concentrating system and process

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Embodiment 1

[0030] refer to figure 1 , an on-line sludge conditioning and concentration system, comprising a sludge conditioning tank 8, a sludge concentration tank 9 and a plate-and-frame filter press 13 sequentially connected through a sludge pipeline along the sludge feeding direction, and the sludge conditioning tank 8 is The mud feeding direction is divided into a coagulation tank 3 and a flocculation tank 4. The coagulation tank 3 is connected with a coagulant dosing device 6, the flocculation tank 4 is connected with a flocculant dosing device 7, and the sludge thickening tank 9 is provided with a sludge Mud Thickener5.

[0031] A coagulation agitator is provided in the coagulation tank 3 , and a flocculation agitator is provided in the flocculation tank 4 . The flocculant fed by the flocculant dosing device 7 is cationic polyacrylamide.

[0032] The sludge thickening tank 9 is connected with the coagulant dosing device 6 and the flocculant dosing device 7 .

[0033] The side wa...

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Abstract

The invention relates to online sludge conditioning and concentrating system and process. The system comprises a sludge conditioning tank (8), a sludge concentration tank (9) and a plate-and-frame filter press (13) which are sequentially connected through sludge pipelines in the sludge feeding direction, wherein the sludge conditioning tank (8) is divided into a coagulation tank (3) and a flocculation tank (4) in the sludge feeding direction, and the coagulation tank (3) is connected with a coagulant adding device (6); the flocculating tank (4) is connected with a flocculating agent adding device (7), and a sludge thickener (5) is arranged in the sludge thickening tank (9). Compared with the prior art, the sludge mixing and conditioning device has the advantages that the sludge mixing and conditioning can be accurately realized on line, the sludge conditioning power and the volume of the gravity concentration tank are greatly reduced, and the water content of the concentrated sludge is improved; therefore, the current situation that a sludge thickening tank and a conditioning tank with large volumes, a high-power stirrer and plate-and-frame filter pressing equipment with a large filtering area need to be adopted for sludge conditioning is solved, so that the investment of subsequent dehydration equipment is reduced.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to an on-line sludge conditioning and concentration system and process. Background technique [0002] Due to the increasingly stringent environmental protection requirements, various sewage plants have higher and higher requirements on the moisture content of sludge. Usually, the main steps of traditional sludge dewatering are divided into two major steps of concentration and dehydration: the concentration process section usually adopts Gravity concentration or mechanical concentration; the dehydration process is based on the moisture content requirements, using stacked screw, centrifuge or plate and frame dehydrator Relatively speaking, the moisture content of the plate and frame dehydrator, especially the diaphragm plate and frame dehydrator can be made lower , is also the most widely used dehydration process equipment in the market, and the derivative processes of various plate an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/147C02F11/121C02F11/122
CPCC02F11/121C02F11/122C02F11/147
Inventor 邵蔚王益民
Owner SHANGHAI KAIXIN ISOLATION TECH CO LTD
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