PDF《氮除磷性能对比 研究》

第32 卷第3期2012 年3月环境科学学报Acta Scientiae Circumstantiae Vol.

32, No.

3 Mar. ,2012 基金项目:国 家自然科学基金(No. 50908028) Supported by the National Natural Science Foundation of China(No. 50908028) 作者简介:郭 海燕(1977― ), 女,副教授(博 士), Email:ghy2721@ sina. com;

通讯作者(责 任作者)Biography:GUO Haiyan ( 1977― ),female,associate professor(Ph. D. ),Email:ghy2721@ sina. com;

Corresponding author 郭海燕,郭祯,柳志刚,等.2012. 不同曝气强度下SBMBBR 和SBR 脱氮除磷性能对比研究[J]. 环境科学学报,32( 3):

568576 Guo H Y,Guo Z,Liu Z G,et al. 2012. Characteristics of nitrogen and phosphorus removal in SBR and SBMBBR with different aeration rates[J]. Acta Scientiae Circumstantiae, 32( 3):

568576 不同曝气强度下SBMBBR 和SBR 脱氮除磷性能对比研究郭海燕1,2, , 郭祯1,

2 , 柳志刚1,

2 , 张寿通1,

2 , 周集体31. 大连交通大学环境与化学工程学院,大连116028 2. 辽宁省高等学校环境科学与技术重点实验室,大连116028 3. 大连理工大学环境与生命学院,大连116024 收稿日期:20110513 修回日期:20110715 录用日期:20110728 摘要:对比考察了不同曝气强度下序批式活性污泥反应器(SBR)和序批式移动床生物膜反应器(SBMBBR)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.实验结果表明,SBMBBR 和SBR 脱氮主要是基于好氧段发生的同步硝化反硝化(SND)及进水、搅拌阶段发生的缺氧反硝化途径实现的,而除磷是基于常规生物除磷和反硝化除磷过程而完成.曝气强度会影响SBR 和SBMBBR 好氧阶段SND 发生的程度,最佳曝气强度下两者通过SND 作用去除的TN 量分别达到去除总量的47. 7% 和79. 0% . 在采用先行厌氧的运行方式,保持系统内高浓度微生物,使反应器在进水C/N比只有2.

2 ~ 3.

5 的条件下均取得了良好的脱氮除磷效果.两者相比,SBMBBR 和SBR 在COD 和NH +

4 N 去除方面没有差异,而SBMBBR 的反硝化、除磷效果更优,TN、 TP 去除率分别达到95. 4% 和93. 5% , 较SBR 分别高出10. 9% 和4. 1% . 关键词:SBR;

SBMBBR;

脱氮除磷;

硝化反硝化(SND);

反硝化除磷文章编号:02532468( 2012)

0356809 中图分类号:X703 文献标识码:ACharacteristics of nitrogen and phosphorus removal in SBR and SBMBBR with different aeration rates GUO Haiyan1, 2, ,GUO Zhen1,

2 ,LIU Zhigang1,

2 ,ZHANG Shoutong1,

2 ,ZHOU Jiti3 1. College of Environmental and Chemical Engineering,Dalian Jiaotong University,Dalian

116028 2. Key Laboratory of Environmental Science and Technology,Education Department of Liaoning Province,Dalian

116028 3. College of Environmental and Biological Science,Dalian University of Technology,Dalian

116024 Received

13 May 2011;

received in revised form

15 July 2011;

accepted

28 July

2011 Abstract:Nitrogen and phosphorus removal were investigated in sequencing batch activated sludge reactor (SBR)and sequencing batch moving bed biofilm reactor (SBMBBR)under different aeration rates. COD,nitrogen and phosphorus profiles in a single operating circle were analyzed. The experimental results indicated that,in both SBMBBR and SBR,nitrogen removal was mainly accomplished by simultaneous nitrification and denitrication (SND)process at aerobic phase and anoxic denitrification process at filling and mixing phase. Phosphorus removal was realized through conventional phosphorus removal and denitrifying phosphorus removal processes. Aeration rate affected the occurrence of SND,and under the optimum aeration rate nitrogen removal during SND process accounted for 47. 7% and 79. 0% of the total nitrogen removed in SBR and SBMBBR,respectively. Ideal nitrogen and phosphorus removal efficiencies were achieved when operated first in anaerobic mode and kept high concentration of microorganism with influent C / N ratio of 2.