Device using high-voltage pulsed discharge to break excess sludge and application method thereof

A high-voltage pulse discharge, excess sludge technology, applied in sludge treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of high energy consumption, low cracking rate, high cost, etc. high energy consumption, high safety and low manufacturing cost

Active Publication Date: 2015-06-10
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the current methods have their own advantages, they share the

Method used

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  • Device using high-voltage pulsed discharge to break excess sludge and application method thereof
  • Device using high-voltage pulsed discharge to break excess sludge and application method thereof
  • Device using high-voltage pulsed discharge to break excess sludge and application method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A device for cracking excess sludge using high-voltage pulse discharge, comprising a pressure-resistant container 1, a sludge flow pipe 2, a discharge electrode 3, a side cover 4, and an insulating nut 5; the pressure-resistant container 1 is a shell, and The pressure vessel 1 is symmetrically provided with two sludge flow pipes and two electrode sockets; the discharge end of the discharge electrode 3 penetrates into the container through the electrode socket; the insulating nut 5 is set on the outside of the discharge electrode 3 to fix the electrode on the On the pressure vessel 1; the side cover 4 is set outside the insulating nut 5 to fix the nut on the pressure vessel 1; except for the electrode discharge part, the outer surface of the device is coated with insulating material;

[0036] Wherein, the pressure-resistant container 1 is a spherical shell structure, the wall thickness of the container is ≥ 1cm, the volume of the spherical container is 3-5L, and its diame...

Embodiment 2

[0038] A device for cracking excess sludge using high-voltage pulse discharge, comprising a pressure-resistant container 1, a sludge flow pipe 2, a discharge electrode 3, a side cover 4, and an insulating nut 5; the pressure-resistant container 1 is a shell, and The pressure vessel 1 is symmetrically provided with two sludge flow pipes and two electrode sockets; the discharge end of the discharge electrode 3 penetrates into the container through the electrode socket; the insulating nut 5 is set on the outside of the discharge electrode 3 to fix the electrode on the On the pressure vessel 1; the side cover 4 is set outside the insulating nut 5 to fix the nut on the pressure vessel 1; except for the electrode discharge part, the outer surface of the device is coated with insulating material;

[0039] Wherein, the pressure-resistant container 1 is a square shell structure, the wall thickness of the container is ≥ 1cm, and the volume of the container is 3-5L; the diameter of the di...

Embodiment 3

[0041]According to the requirement of disintegration of excess sludge, the device is connected through the sludge flow pipe 2 to form a multi-level disintegration system, so that the excess sludge can achieve the desired disintegration effect.

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Abstract

A current method for breaking excess sludge has the problems of being high in energy consumption, high in cost and low in breaking rate. The invention provides a device using high-voltage pulsed discharge to break the excess sludge and an application method thereof, or provides a novel device and a technology using a shock wave formed by the instantaneous ultra high temperature and high pressure generated by the high-voltage pulsed discharge to achieve efficient breaking of the excess sludge, and belongs to the technical field of animal vegetable tissue and microorganism crushing. The device is capable of efficiently dispersing zoogloeas in the excess sludge, and ablating and breaking cell walls of germs and macro molecular substances, so that intracellular organic matters in the germs are prompted to flow out, the biodegradability of the excess sludge is greatly improved, and an approach for large-scale efficient treating of the excess sludge is provided. In addition, by changing different technological parameters, the device is applicable to processes such as sterilization and tissue breaking of various industries, and the excellent effect can be delivered by the device.

Description

technical field [0001] The invention belongs to the technical field of crushing animal and plant tissues and microorganisms, and in particular relates to a device for cracking excess sludge by high-voltage pulse discharge and a method for using the same. Background technique [0002] Activated sludge treatment of urban sewage is the most widely used sewage treatment technology today. In the process of sewage treatment, a large amount of residual sludge will be produced. It contains a large amount of heavy metal ions, pathogens, organic pollutants and other harmful substances. If it is not treated properly It will bring secondary pollution to the environment. Anaerobic nitrification and other microbial treatment of excess sludge technology can not only reduce the amount of excess sludge and make it harmless, but also generate a large amount of biogas to realize the resource utilization of excess sludge. However, the cell wall of bacteria in excess sludge is decomposed slowly...

Claims

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Application Information

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IPC IPC(8): C02F11/00
Inventor 朱彤李现瑾谢元华朱曜南
Owner NORTHEASTERN UNIV
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