|Table of Contents|

Optimum Feed Ratio of Primary Settling Tank Transformed as Denitrification Tank of Recycle Sludge

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2011年02期
Page:
279-283
Research Field:
Publishing date:

Info

Title:
Optimum Feed Ratio of Primary Settling Tank Transformed as Denitrification Tank of Recycle Sludge
Author(s):
YANG MinSUN Yong-liZHENG Xing-canYOU Jia
National Engineering Research Center for Urban Water and Wastewater,Tianjin 300074,China
Keywords:
primary settling tanks upgrading and transforming recycle sludge denitrification tanks denitrification rate optimum feed ratio
PACS:
X703
DOI:
-
Abstract:
In order to remove nitrogen and phosphorus enhancedly,the feed ratio of denitrification tank of recycle sludge transformed from primary settling tank should be optimized.Combining a simulation experiment about the transforming of wastewater treatment plant,the denitrification rate of mixed solution made up of recycle sludge and different ratio feed is studied based on comparative jar tests in this study.The result shows that:when the total nitrogen in effluent of wastewater treatment plant arrives Grade A of national discharge standard,by endogenous denitrification of recycle sludge with 3.2h,the mass concentration of NO-3 in denitrification tank of recycle sludge is no more than 1.5 mg/L,and 0% is an optimum feed ratio of denitrification tank of recycle sludge transformed from primary settling tank.

References:

[1] 张辰,谭学军. 城镇污水处理厂升级改造的有关问 题[J]. 中国给水排水,2008, 24( 24) : 23 - 27.
[2] Bortone G,Libelli S M. Anoxic phosphate uptake in the dephanox process[J]. Wat Sci Tech, 1999, 40( 4 - 5) : 177 - 185.
[3] 郑兴灿,李亚新. 污水除磷脱氮技术[M]. 北京: 中 国建筑工业出版社,1998.
[4] Sedlak R I. Phosphorus and nitrogen removal from municipal wastewater—Principles and practice[M]. 2nd ed. New York: Lewis Publishers, 1991.
[5] 周爱姣,陶涛,张太平,等. A - A2 /O 工艺处理低碳 源城市污水的除磷脱氮效果[J]. 环境科学与技术, 2008, 31( 12) : 150 - 152.
[6] 邱慎初,丁堂堂. 探讨城市污水生物处理出水的总磷达 标问题[J]. 中国给水排水,2002, 18( 9) : 23 -25.
[7] 樊杰,张碧波,陶涛,等. 安庆市城东污水处理厂改 良型A2 /O 工艺的设计与运行[J]. 给水排水, 2008, 34( 12) : 27 - 30.
[8] 王社平,王卿卿,惠灵灵,等. 分段进水A/O 脱氮工 艺反硝化速率的测定[J]. 环境工程,2008,26( 3) : 56 - 58.
[9] Barnard J L. Cut P and N without chemicals[J]. Water and Wastes Eng, 1974, 11( 7) : 33 - 48.
[10] GB18918 - 2002. 城镇污水处理厂污染物排放标准 [S]. 283

Memo

Memo:
-
Last Update: 2012-04-30