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Sludge treatment system and treatment process

A sludge treatment and sludge conditioning technology, applied in sludge treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc., can solve the problems of high heavy metal content, high operating cost, high investment cost, etc. problems, to achieve the effect of protecting the ecological environment, reducing energy consumption, and ensuring environmental protection standards

Active Publication Date: 2017-05-31
YUNNANWATER INVESTMENT CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0016] In order to make more reasonable and comprehensive utilization of organic matter and its calorific value in sludge, especially to solve the problems of high heavy metal content, high investment cost, complicated management and high operating cost in the sludge treatment process

Method used

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  • Sludge treatment system and treatment process
  • Sludge treatment system and treatment process
  • Sludge treatment system and treatment process

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Embodiment Construction

[0055] The present invention will be further described in detail below in conjunction with the examples.

[0056] Those skilled in the art will understand that the following examples are only for illustrating the present invention and should not be considered as limiting the scope of the present invention. If no specific technique or condition is indicated in the examples, it shall be carried out according to the technique or condition described in the literature in this field or according to the product specification. The equipment or materials used are not indicated by the manufacturer, and they are all conventional products that can be obtained through purchase.

[0057] like figure 1 As shown, a sludge treatment system includes a sludge thickening tank 1, a sludge conditioning tank 2, a high-pressure mechanical plate and frame filter press 3, a sludge drying furnace 4, a sludge carbonization furnace 5, biochar cooling equipment 6, Conditioning agent dosing system 7, inci...

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Abstract

The invention relates to a sludge treatment system and treatment process, and belongs to the technical field of water treatment. The process comprises the following steps: stabilizing the quality and quantity of sludge through a sludge thickener; feeding into a sludge conditioner, and throwing a conditioner to perform wall breaking treatment on the sludge; feeding into a high-pressure mechanical plate and frame filter press, and performing pressure filtration until the water content is 55-60%; feeding into a sludge drying furnace, and performing indirect heat exchange through low-temperature fume produced by a sludge charring furnace until the water content of the dewatered sludge to dried to 10% or below; and feeding into the sludge charring furnace, and pyrolyzing the dried sludge through high-temperature fume produced by an incineration hot-blast furnace to produce biochar and tail gas, wherein the tail gas produced by the sludge drying furnace and the sludge charring furnace is fed into a tail gas purification tower for purification and separation, the produced combustible gas and waste oil are fed into the incineration hot-blast furnace for incineration, and the biochar is comprehensively utilized. According to the invention, sludge from a sewage treatment plant can be treated economically and efficiently, thereby realizing comprehensive utilization of the sludge from a sewage treatment plant.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a sludge treatment system and a treatment process, in particular to a treatment system and a treatment process for sludge produced in a sewage treatment plant during the water treatment process. Background technique [0002] With the development of sewage treatment in our country, the water pollution problem has been effectively alleviated, but the sludge output of sewage plants is increasing. The amount of sludge accounts for 0.3% to 0.5% (volume) of the amount of sewage or 1% to 2% of the amount of sewage treatment. If advanced treatment is carried out, the amount of sludge will increase by 0.5 to 1 times. Due to factors such as high difficulty in sludge treatment technology, large investment, and uncertain returns, domestic enterprises involved in this field are few and small in scale, and there is a large gap compared with advanced foreign countries. Amon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C02F11/14C02F11/10C10B53/00F23G7/06
CPCC02F11/10C02F11/122C02F11/14C10B53/00F23G7/06F23G2206/20F23G2209/14
Inventor 罗宇煊张传健陈亮邹新国高伟叶峰
Owner YUNNANWATER INVESTMENT CO LTD
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