Double-oxidation synergistic electroosmosis sludge transverse deep dewatering system and method
A technology of deep dehydration and double oxidation, which is applied in the direction of oxidation treatment of sludge, chemical instruments and methods, water/sludge/sewage treatment, etc., to achieve the effect of improving performance
Pending Publication Date: 2019-06-11
HENAN INST OF ENG
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Problems solved by technology
[0005] In order to solve the deficiencies in the prior art, the present invention provides a double oxidation synergistic electro-osmotic sludge lateral deep dehydration system and method that is easy to operate, low in cost, and high in sludge water removal rate
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Embodiment 1
[0060] Weigh the thin sludge with a water content of 99.2%, add 100 mg -1 Calcium peroxide in g DS, 80 mg -1 ·g·DS of ammonium persulfate, stir evenly and pour into the sludge reaction chamber 1. When energized at a voltage of 50 V, moisture is removed from the cathode dehydration zone 2. After deep dehydration by electroosmosis, the moisture content of the sludge is reduced to 55.22%.
Embodiment 2
[0062] Weigh the thin sludge with a moisture content of 99.07%, add 100 mg -1 Calcium peroxide in g DS, 160 mg -1 ·g·DS of ammonium persulfate, stir evenly and pour into the sludge reaction chamber 1. When energized at a voltage of 50 V, moisture is removed from the cathode dehydration zone 2. After deep dehydration by electroosmosis, the moisture content of the sludge is reduced to 55.5%.
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The invention discloses a double-oxidation synergistic electroosmosis sludge transverse deep dewatering system. The system comprises a power supply, a sludge reaction chamber, a cathode drainage device, an anode piston and an electric push rod; the sludge reaction chamber comprises a cylinder body which is horizontally arranged from left to right; a mud adding hole is formed in the top of the cylinder body; a left support plate and a right support plate are respectively and fixedly arranged at the left end and the right end of the cylinder body; the cathode drainage device is arranged on the left support plate at the left end opening of the cylinder body; the anode piston is slidably, coaxially and hermetically connected in the cylinder body; the right end surface of the anode piston is coaxially connected with a driving rod; the power driving end of the electric pushing rod is coaxially connected with the right end of the driving rod; and the positive electrode and the negative electrode of the power supply are respectively connected with the anode piston and the cathode drainage device through wires. The invention further discloses a dewatering method of the double-oxidation synergistic electroosmosis sludge transverse deep dewatering system. The system is reasonable in design and simple in structure, is convenient to operate during sludge dewatering, has high destruction capability on sludge organic matter, has a high moisture removal rate and does not cause secondary pollution.
Description
technical field [0001] The invention belongs to the technical field of sewage sludge treatment, and in particular relates to a double oxidation synergistic electro-osmotic sludge horizontal deep dehydration system and method. Background technique [0002] The sludge produced in our country every year is increasing with the increase of sewage discharge. Sludge is a hydrophilic organic aggregate mainly composed of extracellular polymers (EPS), with complex components, a large amount of water, and there are difficult-to-degrade organic matter, heavy metals, and a small amount of microorganisms and pathogenic parasite eggs. If the sludge is not treated effectively and properly, the ecological environment of our country will be greatly threatened. [0003] At present, after mechanical dehydration in municipal sewage treatment plants, the water content can only be reduced to about 70%~80%, which cannot meet the requirements in "Sludge Disposal of Municipal Sewage Treatment Plants...
Claims
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IPC IPC(8): C02F11/06C02F11/00C02F11/15
Inventor 李亚林刘蕾董浩云窦雪毕雅洁王尊严
Owner HENAN INST OF ENG
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