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Electro-catalytic conditioning energy wave superposition resonance sludge deep dehydrating method

A technology of deep dehydration and energy wave, applied in the direction of oxidation treatment sludge, electrochemical sludge treatment, chemical instruments and methods, etc., can solve the problems of energy consumption and environmental protection, and achieve condition control, simple method and high efficiency Effect

Pending Publication Date: 2018-12-25
袁颖宏
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  • Claims
  • Application Information

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Problems solved by technology

In the conditioning method, if a large amount of chemical treatment agents are added, the solid content of the sludge can be reduced to a very low level, but the consumed chemicals and the increased solid pollutants are not the way that environmental protection treatment should take
The heating and drying method is not a feasible solution from the perspectives of energy consumption and environmental protection.

Method used

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  • Electro-catalytic conditioning energy wave superposition resonance sludge deep dehydrating method

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Experimental program
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Embodiment 1

[0047] Electroplating sludge to be treated: moisture content 80.2%; pH value 9.1; conductivity 438 ms / m; mud: water = 1:10; take 100 kg of the above sludge and put it in the reactor for chemical conditioning.

[0048] Step 1: Flocculation chemical conditioning, adding 0.75% concentration of PDADMAC and 0.28% concentration of acidic salt mixture for conditioning; after conditioning, transfer it to an electrochemical reactor for activation and catalysis;

[0049] Step 2: Electrochemical conditioning (catalytic activation), the conditions are: constant voltage 5.8-6.5 volts, pH value 7.2-7.5, catalytic reaction time 8-10 minutes, apparent ξ potential -15mv, apparent conductivity 620ms / m;

[0050] Step 3: Select wave resonance frequency 1500 (Hz), three-level resonance mode, and dehydrate under pressure drainage for 15-20 minutes;

[0051] Step 4: After deep drying, the moisture content of the sludge reaches 47-49%.

[0052] In summary, the method provided by the present inventio...

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Abstract

The invention relates to an electro-catalytic conditioning energy wave superposition resonance sludge deep dehydrating method. The method comprises steps of electrochemical conditioning, wave resonance superposition and mechanical solid-liquid separation. The method is capable of, through the electrochemical conditioning, changing a sludge colloid double-electric-layer structure, and forming a predictable tight bonding force between sludge colloid and a diffusion layer, and according to this feature parameter, damaging a binding force of bonded water molecules through a certain energy wave, thereby releasing the bonded water molecules from sludge, and easy to be synergistically applied with other mechanical, chemical and physical dehydrating devices, and good dehydrating efficiency and drying effect can be achieved.

Description

technical field [0001] The invention belongs to the technical field of sludge deep dewatering, and in particular relates to an electrocatalytic conditioning energy wave superimposition resonance sludge deep dehydration method. Background technique [0002] The output of sludge shows an upward trend with the continuous improvement of my country's sewage treatment rate. The process of sewage treatment is to make the harmful substances in the liquid wastewater harmless, and the polluted dissolved suspended substances are precipitated and separated in the form of solid phase through proper treatment. After the water is purified, it enters the natural water body for circulation or reuse. Solid separated matter, as sludge, becomes a by-product of water treatment. It usually contains a large amount of refractory organic matter, heavy metals and salts, as well as pathogenic microorganisms and insect eggs. If not handled properly, it will cause serious secondary pollution. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C02F11/06C02F11/00
CPCC02F11/006C02F11/06C02F11/12C02F11/121C02F2303/06
Inventor 袁颖宏
Owner 袁颖宏
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