污泥电解脱水过程中泥饼厚度变化研究

邢思奇; 吕航; 张文标; 刘道广; 吴旭

doi:10.12153/j.issn.1674-991X.2019.06.180

污泥电解脱水过程中泥饼厚度变化研究

doi: 10.12153/j.issn.1674-991X.2019.06.180

^1. 华中科技大学,湖北武汉 430074
^2. 上海同臣环保有限公司,上海 200092

详细信息

通讯作者:
吴旭 E-mail: profxuwu@hust.edu.cn

中图分类号: X705
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出版历程
- 收稿日期: 2019-03-27
- 刊出日期: 2019-11-20

Study on thickness change of mud cake during electrolytic dewatering process

^1. Huazhong University of Science and Technology, Wuhan 430074, China
^2. Shanghai Techase Environment Protection Co., Ltd., Shanghai 200092, China

More Information

Corresponding author: Xu WU E-mail: profxuwu@hust.edu.cn

摘要

摘要: 污泥电解脱水具有独特优势,但同时伴随电耗高、时空产率低等问题。为实现能耗优化,以污泥电解脱水过程中泥饼厚度的变化为切入点,通过小试装置原位探究厚度变化规律以及厚度变化与含水率之间的关系,通过观察垂直电场作用下厚度的变化,使含水率的变化更加直观和可控,并从密度和含水率入手,对厚度变化的机理进行简要分析。结果表明:电解脱水过程中泥饼厚度变化具有一定规律,当泥饼初始厚度较小时,泥饼厚度随含水率的降低而减小;当泥饼初始厚度较大时,泥饼厚度随含水率的减少呈先增大后减小的趋势。
- 污泥 /
- 电解脱水 /
- 厚度变化 /
- 含水率
Abstract: Sludge electrolytic dehydration has its unique advantages, but at the same time accompanied by high power consumption, low space-time yield and other problems. In order to reduce energy consumption, taking the change of mud cake thickness in the process of sludge electrolytic dehydration as the starting point, the rule of thickness change and the relationship between thickness change and water content were explored through the small test device. The change of water content was more intuitive and controllable by observing thickness change in sludge electrolysis process under the action of vertical electric field. The mechanism of thickness change was briefly analyzed from the density and moisture content. The experiment proved that the thickness of mud cake changed regularly during the process of electrolysis. When the amount of mud input was less, the thickness of mud cake decreased with the decrease of water content, while when the amount of mud input was larger, the thickness of mud cake increased firstly and then decreased with the decrease of water content.
- sludge /
- electrolytic dehydration /
- thickness change /
- water content

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参考文献(16)

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