Sludge treatment method improving dehydration efficiency

A technology for sludge treatment and sludge, which is applied in dehydration/drying/concentrated sludge treatment, sludge treatment, water/sludge/sewage treatment, etc. It can solve the problems of low dehydration efficiency, low sewage dehydration rate, and difficult treatment of filter residues Utilize and other problems to achieve the effect of strong practicability and simple process

Active Publication Date: 2016-03-02
JINJIANG SHILONG KITCHEN EQUIP CO LTD
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Problems solved by technology

[0006] The present invention provides a sludge treatment method with improved dehydration efficiency, the main purpose of which is to overcome the defects of l

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  • Sludge treatment method improving dehydration efficiency
  • Sludge treatment method improving dehydration efficiency

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[0022] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0023] refer tofigure 1 and figure 2 . A sludge treatment equipment includes a sludge heavy metal biochemical treatment tank 1 , a sludge dehydration conditioning tank 2 and a sludge dehydration drying tank 3 into which the sludge 9 is sequentially introduced.

[0024] refer to figure 1 and figure 2 . The sludge heavy metal biochemical treatment tank 1 includes a first tank 10, a first drainage hood 11 disposed inside the first tank 10, and a blowing mechanism 4. The first tank 10 is provided with a A first feeding port 101 for feeding sludge raw materials containing heavy metals, a first feeding port 102 for feeding a nutrient solution containing Thiobacillus thiooxidans, and a first ventilation port 103 communicating with the blowing mechanism 4, so The first vent 103 is located at the bottom of the first tank body 10, and the first drainage cove...

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Abstract

A sludge treatment method improving dehydration efficiency includes the following steps of 1, biochemical treatment of heavy metal, 2, dehydration conditioning of sludge, and 3, dehydration drying of the sludge. In the step of dehydration drying of the sludge, the pressure in an upper tank body is increased through a pressurization device, the pressure in a lower tank body is decreased through a vacuum tank till the interior of the lower tank body is in a vacuum state, and thus a large pressure difference is formed between the upper tank body and the lower tank body; water in water-containing sludge mixed liquid in the upper tank body can pass through a filter layer quickly, the sludge remains on the filter layer, and quick solid-liquid separation is guaranteed due to the fact that the pressure difference can be formed between the upper tank body and the lower tank body; after solid-liquid separation is finished, a microwave emitting device is started to release microwaves, and the microwaves interact with water molecules in the sludge to heat the water molecules, so that the water molecules in the sludge disperse and volatilize into the air, and the effect of drying the sludge is achieved.

Description

technical field [0001] The invention relates to a sludge treatment method, in particular to a sludge treatment method for improving dehydration efficiency. Background technique [0002] In recent years, with the rapid growth of my country's sewage treatment capacity and treatment rate, a large amount of excess sludge has been produced. At present, only a small part of the sludge from urban sewage treatment plants in the country is used for sanitary landfill, land utilization, incineration and building material utilization, etc., and most of them have not undergone standardized treatment and disposal. [0003] In the process of sewage treatment, some sewage contains a large number of larger particles and suspended solids that are difficult to settle, and some particles and suspended solids are difficult to biochemically degrade. At this time, the sewage is usually dehydrated. After dehydration, the formation The filter residue can be recycled as filler. [0004] For example...

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Application Information

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IPC IPC(8): C02F11/00C02F11/14
CPCC02F11/00C02F11/14C02F2303/06
Inventor 潘国良潘捌贡
Owner JINJIANG SHILONG KITCHEN EQUIP CO LTD
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