Exchange electrode electroosmotic sludge dewatering system and method based on voltage grading detection

A technology of sludge dehydration and electroosmosis, which is applied in the direction of oxidation treatment sludge, dehydration/drying/concentrated sludge treatment, etc., can solve the problem of inability to improve the serious drying of anode sludge, poor uniformity of mud cake, and inability to dispose of sludge, etc. problems, to achieve the effect of improving the poor uniformity of sludge, improving corrosion problems, and reducing the moisture content of sludge

Active Publication Date: 2019-09-17
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the uniformity of mud cake after treatment by this technology is poor, and it cannot improve the serious drying of anode sludge, and cannot directly carry out subsequent sludge disposal

Method used

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  • Exchange electrode electroosmotic sludge dewatering system and method based on voltage grading detection
  • Exchange electrode electroosmotic sludge dewatering system and method based on voltage grading detection
  • Exchange electrode electroosmotic sludge dewatering system and method based on voltage grading detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] An exchange electrode electroosmosis sludge dewatering method based on voltage classification detection. Two sets of experiments were carried out for comparison. The first group used traditional electroosmosis technology, and the second group used exchange electrode electroosmosis technology. The rest of the conditions were the same. The results of the two groups of experiments were Figure 4 shown.

Embodiment 2

[0064] An exchanged electrode electroosmosis sludge dewatering method based on voltage classification detection. Three sets of experiments were carried out for comparison. The first group used traditional electroosmosis technology, and the second group used exchanged electrode electroosmosis technology combined with ammonium persulfate advanced oxidant , the third group used exchanged electrode electroosmosis technology combined with ferrous activation of ammonium persulfate oxidant, and the rest of the conditions were the same. The results of the two groups of experiments were Figure 5 shown.

Embodiment 3

[0066] An exchanged electrode electroosmosis sludge dewatering method based on voltage classification detection. Two sets of experiments were carried out for comparison. The first group used traditional electroosmosis technology, and the second group used exchanged electrode electroosmosis technology combined with ammonium persulfate advanced oxidant And take the voltage classification detection system, the rest of the conditions are the same. The results of the two groups of experiments were Figure 6 shown.

[0067] From the above three examples, it can be clearly concluded that the second group in Example 3 has the best dehydration effect. It also proves the good effect of using exchanged electrode electroosmosis technology combined with ammonium persulfate advanced oxidant and adopting voltage classification for sludge dewatering.

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Abstract

The invention relates to an exchange electrode electroosmotic sludge dewatering system based on voltage grading detection, the exchange electrode electroosmotic sludge dewatering system comprises a bracket, wherein a platen is horizontally arranged on the bracket; an electroosmotic reactor, a power supply, a first voltmeter and a second voltmeter are arranged on the platen; an upper carbon sheet electrode, a middle copper sheet electrode and a lower copper sheet electrode are sequentially arranged at intervals from top to bottom in the electroosmotic reactor; and a power driving device for driving the upper carbon sheet electrode to move downwards along the inner wall of the electroosmotic reactor is arranged above the upper carbon sheet electrode. The invention also discloses a dehydrating method of the exchange electrode electro-osmotic sludge dehydration system based on voltage grading detection. According to the invention, sludge is deeply dewatered by adopting an exchange electrode type electroosmosis process, so that the water content of the sludge can be effectively reduced, the problem of poor uniformity of the sludge after traditional electroosmosis can be solved, and the treated sludge can be directly subjected to subsequent treatment; according to the invention, the copper sheet electrode corrosion problem is improved by adopting an exchange electrode mode.

Description

technical field [0001] The invention belongs to the technical field of sludge treatment, and in particular relates to an exchange electrode electroosmotic sludge dewatering system and method based on voltage classification detection. Background technique [0002] Sludge is a solid-liquid mixture containing pathogenic bacteria, organic matter, inorganic matter and toxic and harmful substances produced in the process of sewage treatment. Due to the large output and high water content of sludge, improper treatment or disposal will cause secondary pollution and endanger the health of land, humans and livestock. In order to reduce the difficulty of sludge treatment and disposal, sludge dehydration should be taken as the primary treatment. [0003] Most of the sewage treatment plants use mechanical dehydration, and the commonly used mechanical dehydration method can only reduce the moisture content to 80%, which cannot meet the requirements of my country's sludge treatment and di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/15C02F11/06
CPCC02F11/15C02F11/06
Inventor 李亚林刘蕾方珑宇李坤鹏邢诗翎
Owner HENAN INST OF ENG
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