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Sludge soil dehydration process and treatment system

A sludge treatment and sludge technology, applied in the field of sludge soil dehydration process and treatment system, can solve the problems of high energy consumption, high treatment cost, large investment in equipment and site, etc., to achieve convenient on-site treatment, improve flocculation effect, dehydration The effect of effect enhancement

Active Publication Date: 2022-04-12
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the mechanical dehydration method is mainly used, but the energy consumption is large, the equipment and site investment are large, and the corresponding treatment cost is also high.

Method used

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  • Sludge soil dehydration process and treatment system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, a mobile sludge soil dewatering system includes a buccular system, a flocculation precipitation system 4, a multi-segment sludge conditioning dewatering system 6;

[0042] The flocculating precipitation system 4 includes a tube flocculating precipitation apparatus A41, a tube flocculating precipitation apparatus C43, a tube flocculating precipitation apparatus C43, and a tube flocculating precipitation apparatus A41, a tube flocculating precipitation apparatus A41, a raw tube flocculation precipitation Equipment C43 has a flocculant addition port and drain outlet;

[0043]The multi-segment sludge conditioning dewatering system 6 includes a silt regulatory chamber A61, a belt filter press A62, a sludge conditioning chamber B63, a belt filter press B64, and a silt regulation chamber C10;

[0044] The sludge conditioning chamber A61, the sludge conditioning chamber B63 and the silt regulation chamber C10 are each provided with a dose of a dose; the b...

Embodiment 2

[0052] Silled Soil Soil Dehydration Process, Silk Soil Dehydration Process Use the sludge treatment system according to any one of claims 1-6, including:

[0053] (1) Extracting silt flocculation precipitation device A from the river

[0054] (2) Adding a polyacrylamide in the tube flocculation precipitation device A for the first flocculation precipitation, the amount of polyacrylamide is added to the sludge of 30 mg of polyacrylamide, the first flocculation of the first flocculation precipitated supernatant The drain is discharged, and the first flocculation precipitated silt into the tube flocculation precipitation device B;

[0055] (3) The second flocculation precipitation is carried out in the raw tube flocculation precipitation device B, and the second flocculation precipitation is carried out by the second flocculation precipitation. The drain is discharged, and the second flocculation precipitated sludge enters the tube flocculation precipitation device C;

[0056] (4) Th...

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Abstract

The invention discloses a sludge soil dehydration process and a treatment system. The treatment system comprises a sludge feeding system, a flocculent precipitation system and a multi-section sludge conditioning dehydration system which are connected in sequence. According to the technology, the system is utilized, the modified clay is added, the flocculation effect of the sludge is improved, the chemical fertilizer, the organic fertilizer and the modified sandy soil are added, the pH and porosity of the sludge are adjusted, surface charges of the sludge are neutralized, the dehydration effect of the sludge is greatly improved, meanwhile, the fertility of the sludge is increased, follow-up fermentation of the sludge is facilitated, and soil utilization of the sludge is promoted. In addition, on-site treatment of sludge is facilitated, and the problem that sludge treatment equipment and site investment are large is solved.

Description

Technical field [0001] The present invention belongs to the field of sludge treatment, involving a silt soil dehydration process and treatment system. Background technique [0002] As an important part of river governance, the river's dredging and large-scale processing technology of the river and the normal use of rivers are closely related. The river has gradually increased, and the flood control capacity of the river is weakened. Therefore, it is necessary to strengthen the application of sludge cleaning and sewage treatment technology in river governance. Silted mud is very high in the lower layer of the water for a long time, resulting in very high water content. Silled dehydration not only reduces the volume of mud cake and transportation treatment, but also contributes to the resource utilization of the lattime, and the mud has a large economic and environmental value as plant nutrients and soil organic matter. Therefore, the dehydration process is essential. The sludge de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/14C02F11/147C02F11/148C02F11/123
Inventor 祝建中蒋冬雪张欢汪存石刘叶
Owner HOHAI UNIV
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