Wave resonant sludge deep dehydration technology

Abstract

The invention relates to a wave resonant sludge deep dehydration technology. The wave resonant sludge deep dehydration technology mainly comprises the following steps: performing the flocculation chemical regulation: adding 3 to 15 kg of regulation agent into every ton of sludge to perform the chemical regulation; performing the electrochemical regulation: after the chemical regulation, transferring the sludge into an electrochemical reactor with voltage of 3 to 10 V, performing the catalytic activation, so that the potential of a double electrode layer of the sludge colloid is reduced, the frequency of a combination bond of water molecules and solid particles in the sludge colloid can reach an energy wave set frequency range, and obtaining activated sludge; determining the energy wave setfrequency: selecting the energy wave set frequency applied to the activated sludge as 1000 to 5000 Hz; and performing the energy wave resonant superposition association dehydration: selecting the resonant wave frequency same with the combination bond frequency in the energy wave set frequency range to perform the resonation, destructing the combination bond of the water molecule and solid particles in the activated sludge colloid, and performing the oscillation dehydration treatment for the activated sludge. According to the method provided by the invention, the water is released and separated at a liquid phase state, no large phase changing energy needs to be overcome, and the energy consumption is relatively low.

Description

technical field [0001] The invention belongs to the technical field of sludge treatment, in particular to a wave resonance sludge deep dewatering technology. 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] Residual sludge, that is, the sludge produced after sewage treatment,...

AI Technical Summary

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.

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