Method and apparatus for improving sludge dehydration

A dehydration and sludge technology, applied in the direction of dehydration/drying/concentrated sludge treatment, etc., can solve the problems of complex conditioning process, high equipment requirements, and large consumption of chemicals, so as to increase permeability and improve work efficiency , activity and solubility enhancement effects
CN101328002AInactive Publication Date: 2008-12-24上海滨浦水处理设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海滨浦水处理设备有限公司
Publication Date
2008-12-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for improving the dehydrating property of the sludge and equipment thereof. The method is to adopt an inner embedded type electromagnetic swirling wing sludge conditioner arranged in the sludge pipe or an external magnet-rotary sludge conditioner arranged on the sludge pipe to quench and temper the sludge, so as to achieve the purpose of sludge specific resistance reduction and sludge dehydrating property improvement. After the method and the equipment are implemented, the water content of the final dewatered sludge (mud cake) can reach 70-80% which reduces by 2-15% comparing to the technology without conditioner treatment. The work efficiency of the dewaterer is greatly improved, the energy consumption of the dewaterer is reduced by 5-40% and the reagent dosing is reduced by 5-100%. The method and equipment of the invention are not only suitable for the transformation of the old equipment in the prior sludge treatment, but also suitable for the establishment of the new equipment.
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Description

technical field

[0001] The invention relates to a sludge treatment method, in particular to a method for improving sludge dehydration and a dynamic sludge physical conditioner device used therein. Background technique

[0002] With the rapid development of my country's economy, the discharge of urban industrial wastewater and domestic sewage is increasing day by day. Sewage sludge is a solid waste produced in the process of sewage treatment. It has a huge amount of production and complex components. How to reduce it after scientific treatment , Harmless, resourceful and stable, has become a research topic that is widely concerned by the environmental circles in our country and even in the world.

[0003] Due to different urban sewage treatment methods, there are many kinds of sludge formed, including primary sludge, humic sludge, residual activated sludge or digested sludge. The water content in the sludge is very high, generally 99.2-99.8%. The form of water contained in s...

Claims

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