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第27卷第7 期
2014年7 月
环境科学研究
Research of Environmental Sciences
Vol. 27,No.7
July,2014
邓仁健,张金松,曲志军.污泥浓度对双重后置反硝化工艺脱氮除磷的影响[J].环境科学研究,2014,27$7% &797-803.
DENG Renjian,ZHANG Jinsong,QU Zhijun. Characteristics of nitrogen and phosphorus removal in multiple post-denitrification processes with different sludge
concentrations* J] . Research of Environmental Sciences ,2014,27 $ 7 % &797-803.
污泥浓度对双重后置反硝化工艺脱氮除磷的影响
邓仁健1 2 , 张金松1 "3 !,曲志军3
1.哈尔滨工业大学深圳研究生院,环境科学与工程研究中心,广 东 深 圳 518055
2.湖南科技大学土木工程学院,湖 南 湘 潭 411201
3.深圳市水务(集团)有限公司,广 东 深 圳 518030
摘要:利用城市实际污水考察了 p( MLSS)在2 400 #3 350#4 300和5 250 mg台4 种工况下S B R 反应器(厌氧/ f氧/缺氧台|好氧/
沉淀缺_水执^ 缺氧运行模式)的脱氮除磷效果,并分析了反应器单个周期内有机物、氮和磷的转化过程及污泥产量• 结果表明:
p( MLSS)由2 400 mg台升至5 250 mg台 时 ,系统T N 去除率由52.5%升至66.6% ;后续缺氧及预缺氧工序的脱氮比例(该工序
T N 去除量占系统T N 总去除量的比例)由 12. 7% 增至23 1% ; ! MLSS)为4 300 mg缺时系统T P 去除率(7 5. 6 % )达到最大•后
续缺氧及预缺氧工序中,p( MLSS)与内源反硝化速率呈正相关(J =0. 703 7 );提高! MLSS)可使PA0s(聚磷菌)在下一个周期
内获得更多的碳源,使厌氧释磷量由1.62 mg台升至9. 10 m g / ,但 PA0s吸磷动力会减弱,对除磷不利• 在后置反硝化、污泥衰
减、能量解偶联等减量机制共同作用下,!( MLSS)为4 300 mg缺时系统污泥减量可提高24. 4 % •从脱氮除磷及污泥减量效果综
合考虑,p( MLSS)是双重后置反硝化工艺重要的控制参数,在该研究条件下控制在4 300 mg缺最优•
关键词:后置反硝化;脱氮除磷;污泥浓度;污泥减量
中图分类号:X703. 1 文章编号:1001 -6929(2014)07 -0797 -07
文献标志码:A D O I : 10. 13198台 issn. 1001-6929.2014.07. 17
Characteristics of Nitrogen and Phosphorus Removal in Multiple Post
Denitrification Processes with Different Sludge Concentrations
D E N G Ren-jian1'2,Z H A N G Jin-song1'3, Q U Zhi-jun3
1. Environmental Science and Engineering Research Center,Harbin Institute of Technology Shenzhen Graduate School,Shenzhen 518055,
China
2. School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
3. Shenzhen Water ( Group) Co. Ltd. , Shenzhen 518030, China
Abstract : The performance of biological nitrogen and phosphorus removal on the treatment of municipal sewage in SBR process was
investigated with sludge concentrations (p( MLSS) ) of 2400, 3350,4300 and 5250 mg/L,and with an SBR reactor operation mode of
anaerobic/aerobic/anoxic/aerobic/precipitation/drainage/pre-anoxic for recycled sludge. The transformation process of organic matter,
nitrogen and phosphorus, and sludge production were also analyzed over a single cycle. The investigation results showed that the total
nitrogen removal efficiencies varied from 52.5% to 6 6 .6 % when p( MLSS) increased from 2400 mg/L to 5300 mg/L,while the
percentages of TN removal in anoxic and pre-anoxic processes varied from 12. 7% to 23. 1% • The total phosphorus removal efficiencies
reached a maximum of 75. 6 % when the p( MLSS) was 4300 mg/L. There was a positive correlation between p( MLSS) and endogenous
denitrification rate ( R2 = 0. 7037 ) in the post-denitrification process. With the increase ofp( MLSS),the PA0s could obtain more carbon
in the next cycle,and the phosphorus release capacities increased from 1. 62 to 9. 10 mg/L. It also could lower the ability of the absorption
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power of phosphorus,which could cause unfavorable influence on
收稿日期:2013-08-16 修订日期:2013-12-10
基金项目:国家高技术研究发展计划(863 )项目(2009AA064704 );深
圳水务(集团)有限公司科研立项课题
作者筒介:邓仁健(1980 -),男,湖南桂阳人,讲师,主要从事污水深度
处理研究,800912deng@ sina. com.
!责任作者,张金松(1963 -),男,黑龙江哈尔滨人,教授,博士,博导,
主要从事给水及污水深度处理研究,zhanginsong@ waterchina. com
phosphorus removalM Under the mechanism of postposition
denitrification process, the sludge decay and energy uncoupled,
and the sludge reduction reached 24.4% when the sludge
concentration was 4300 mg/L. Based on the comprehensive
consideration of biological nutrient removal and sludge reduction,
p( MLSS) was an important control parameter in the multiple post