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Residual sludge ultrasonic-dehydration apparatus

A technology of excess sludge and dehydration device, which is applied in the direction of dehydration/drying/concentrated sludge treatment, etc., can solve the problems of low dehydration rate, large land occupation, secondary pollution, high cost pretreatment, and high power consumption.

Inactive Publication Date: 2014-04-02
BEIJING ZHONGZIKONG ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of sludge has poor compressibility and poor dewaterability
Using conventional mechanical treatment methods such as sedimentation methods and centrifugation methods, the dehydration effect is poor, the dehydration time is long, the dehydration rate is low, and the power consumption is large.
Traditional landfill, incineration and other sludge treatment technologies are increasingly restricted due to the need to occupy a large amount of land, secondary pollution and high cost pretreatment.
Therefore, it is a big problem to deal with and dispose of these surplus sludge

Method used

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  • Residual sludge ultrasonic-dehydration apparatus
  • Residual sludge ultrasonic-dehydration apparatus

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] exist Figure 1-2 Among them, an ultrasonic dehydration device for excess sludge, comprising an ultrasonic reactor 1 for excess sludge dehydration, an excess sludge water supply pipeline 2, a water supply pipeline valve 3, a filtrate outlet pipeline 4, a concentrated sludge outlet pipeline 6, and an ultrasonic generator 8, Wherein said filtrate outlet pipeline 4 ports are provided with filtrate outlet pipeline valve 5, described concentrated sludge outlet pipeline 6 ports are provided with concentrated sludge outlet pipeline valve 7, are provided with adding flocculation on described excess sludge water supply pipeline 2 The pipeline 11 of the agent, the ultrasonic generator 8 is composed of an ultrasonic tuning module and an ultrasonic power amplifier, and there are several groups, each group excites an ultrasonic probe 9, and the ultrasonic probe 8 is composed...

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Abstract

The invention relates to a residual sludge ultrasonic-dehydration apparatus. The residual sludge ultrasonic-dehydration apparatus comprises a residual sludge dehydration ultrasonic-reactor, a residual sludge water supply pipeline, a water supply pipeline valve, a filtrate outlet pipeline, a concentrated sludge outlet pipeline and an ultrasonic generator, wherein the port of the filtrate outlet pipeline is provided with a filtrate outlet pipeline valve, the port of the concentrated sludge outlet pipeline is provided with a concentrated sludge outlet pipeline valve, and the residual sludge water supply pipeline is provided with a flocculating agent feeding pipeline. The residual sludge ultrasonic-dehydration apparatus has the advantages of simple technology, convenient operation, high dehydration rate and easy subsequent treatment.

Description

[0001] technical field [0002] The invention belongs to the technical field of dehydration treatment, and in particular relates to a pretreatment method for dehydration and weight reduction of excess activated sludge. [0003] Background technique [0004] With the increase of population and the increasing emphasis on environmental protection, the number of sewage treatment plants has increased rapidly, and the amount of surplus sludge produced has also increased day by day. This kind of excess sludge is mainly hydrophilic bacterial micelles formed by some negatively charged biological particles. The particle size of mycolloids is small. The remaining sludge belongs to a kind of organic sludge with hydrophilicity and fine particle size. The moisture content of these activated sludge is as high as 99%, and the relative density is close to 1. After traditional concentration and dehydration treatment, their water content is still high, and subsequent treatment problems are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C02F11/14
Inventor 沈建中
Owner BEIJING ZHONGZIKONG ENVIRONMENTAL PROTECTION TECH CO LTD
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