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Sludge deep dehydration method

A deep dehydration and sludge technology, applied in the direction of dehydration/drying/concentrated sludge treatment, etc., can solve the problems of low dehydration efficiency and low sludge dewatering rate, achieve fast dehydration speed, high filter cake dehydration rate, and safe operation Effect

Inactive Publication Date: 2010-06-09
HANGZHOU XINGYUAN FILTER TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcomings: first, the sludge dehydration rate is low; second, the dehydration efficiency is low

Method used

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Embodiment 1

[0011] Embodiment 1: with reference to attached Figure 1~3 . A sludge deep dehydration method, which includes a dehydrating agent addition system 1, an air filtration treatment system 2 and a filtration dehydration system 3, a feed pump 8 is provided between the dehydration agent addition system 1 and the air filtration treatment system 2 and passes through The pipeline is connected, the air filtration treatment system 2 is connected to the filtration and dehydration system 3 through pipelines, and the filtered water outlet 21 of the filtration and dehydration system 3 is connected to the water inlet of the service water supply system 23, and the dehydration machine 13 dehydration machine in the filtration and dehydration system 3 There is a variable filter chamber diaphragm to press the filter cake, and a mud guide bucket 15 and a water outlet 16 are provided at the bottom of the dehydrator 13, and the mud guide bucket 15 is installed on the conveyor 17. Described dehydrati...

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Abstract

The invention relates to a sludge deep dehydration method which has favorable dehydration effect, saves energy and is environmental friendly. In the method, a dehydrating agent adding system, an air filtration and treatment system and a filtration dehydration system are provided. A charge pump is arranged between the dehydrating agent adding system and the air filtration and treatment system which are communicated by a pipeline; the air filtration and treatment system and the filtration dehydration system are communicated by a pipeline; a guide bucket and a water outlet are arranged at the bottom of a dehydrater in the filtration dehydration system, and the guide bucket is mounted on a conveyer. The invention has the following advantages that, firstly, the sludge dehydration rate is high, and the water content of the sludge can reach 50-58%; secondly, the filtering efficiency is high, and the filtering cycle can be shortened to less than 20 min; thirdly, the filtered water can be recycled, and the water resource is saved; fourthly, the dehydrater is utilized, the high pressure resistance, the antiseptic performance and the sealing performance are favorable, the dehydration ratio of a filter cake is high, the washing is uniform and thorough and the dehydration speed is fast; fifthly, the automatic degree is high; and sixthly, the operation is safe.

Description

technical field [0001] The invention relates to a sludge deep dehydration method with good dehydration effect, energy saving and environmental protection, and belongs to the field of sludge dewatering device manufacturing. Background technique [0002] With the popularization of urban sewage treatment plants in China, sludge production continues to increase rapidly. According to statistics, the current generation of sludge (water content 80%) in China is about 42 million tons per year, and it is also increasing at a rate of more than 15% every year. China's urban sewage plants generally use mechanical methods to dehydrate sludge. The moisture content of dewatered sludge is generally 75-85%. Secondary pollution can no longer meet the requirements of environmental protection. At present, common sludge subsequent treatment and disposal methods, such as composting, incineration, and landfill, all require a moisture content of less than 60%, which directly leads to up to 83% of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/14
Inventor 徐孝雅付祥兵张鹏沈袆生李伟陈莉华刘晓东
Owner HANGZHOU XINGYUAN FILTER TECH
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