Cause and controlling measures of floating upward of sludge in AAC oxidation ditch process

doi:10.11894/1005-829x.2006年.26（04）.78

INDUSTRIAL WATER TREATMENT ›› 2006, Vol. 26 ›› Issue (4): 78-80. doi: 10.11894/1005-829x.2006年.26（04）.78

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Cause and controlling measures of floating upward of sludge in AAC oxidation ditch process

Jiang Yamin, Mai Wenning, Li Ning

School of Environment and Water Conservancy, Zhengzhou University, Zhengzhou 450002, China

Received:2005-10-09 Online:2006-04-20 Published:2010-10-01

AAC氧化沟工艺中污泥上浮的原因与控制

姜亚敏, 买文宁, 李宁

郑州大学环境与水利学院, 河南, 郑州 450002

作者简介:姜亚敏(1980- )，郑州大学环境与水利学院环境工程专业硕士研究生，主要研究方向为水污染控制理论与技术。电话: 13523413412。E-mail: jiangyamin2003@126.com。

Abstract

Abstract:

The main cause of floating upward of sludge is discussed. It occurs in a municipal wastewater plant. Large quantity of nitric nitrogen flows into the secondary sedimentation tank which produces N₂ by denitrification, as is believed to be the main cause of floating upward of sludge in this plant. Measures against this problem are put forward, such as increasing the amount of the discharged sludge, decreasing the amount of the aerated air, etc.

Key words: oxidation ditch, floating upward of sludge, denitrification

摘要：

分析了采用AAC氧化沟工艺的城市污水厂污泥上浮的主要原因。认为大量硝态氮进入二沉池并发生反硝化产生N₂是污泥上浮的主要原因，并针对此提出了加大排泥量、降低曝气量等解决方案。

关键词: AAC氧化沟, 污泥上浮, 反硝化

CLC Number:

Jiang Yamin, Mai Wenning, Li Ning. Cause and controlling measures of floating upward of sludge in AAC oxidation ditch process[J]. INDUSTRIAL WATER TREATMENT, 2006, 26(4): 78-80.

姜亚敏, 买文宁, 李宁. AAC氧化沟工艺中污泥上浮的原因与控制[J]. 工业水处理, 2006, 26(4): 78-80.

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URL: https://gyscl.magtechjournal.com/EN/10.11894/1005-829x.2006年.26（04）.78

https://gyscl.magtechjournal.com/EN/Y2006/V26/I4/78

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AAC氧化沟工艺中污泥上浮的原因与控制

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Cause and controlling measures of floating upward of sludge in AAC oxidation ditch process

AAC氧化沟工艺中污泥上浮的原因与控制

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