微压流化式复合生物反应器的同步脱氮

J4 ›› 2012, Vol. 42 ›› Issue (3): 832-837.

微压流化式复合生物反应器的同步脱氮

刘淼|陈睿阳|李广柱|郎贵林

吉林大学地下水资源与环境教育部重点实验室|长春130021

收稿日期:2011-12-19 出版日期:2012-05-26 发布日期:2012-05-26
作者简介:刘淼(1963-)|男|教授|博士生导师|主要从事环境科学研究|E-mail:liumiao@jlu.edu.cn
基金资助:
科技部重大专项（2012ZX07202009 ）

Simulataneous Nitrogen Removal in the Micro-Pressurized Fluidized Hybrid Biological Reactor

LIU Miao, CHEN Rui-yang, LI Guang-zhu, LANG Gui-lin

Key Laboratory of Groundwater Resources and Environment|Ministry of Education, Jilin University, Changchun130021, China

Received:2011-12-19 Online:2012-05-26 Published:2012-05-26

摘要/Abstract

摘要：

通过对曝气系统的调节，微压流化式复合生物反应器（MP-FHBR）内可以实现好氧区和缺氧区共存，利用这一特点和MP-FHBR中同时存在的活性污泥﹑悬浮生物膜复合生物体系，进行了同步脱氮的试验研究。结果表明，MP-FHBR在好氧-缺氧条件下，实现了同步脱氮过程，TN和COD的平均去除率分别达到77.5%和98.3%。降低DO质量浓度使反应器内形成完全缺氧环境，对MP-FHBR同步脱氮效果没有显著影响，但会降低系统去除COD的效果；而提高DO质量浓度使反应器内形成完全好氧环境，MP-FHBR同步脱氮效果显著下降。在一定范围内提高进水COD/TN有利于提高MP-FHBR同步脱氮效果，COD/TN 由2升高到10，TN平均去除率由58.4%提高到78.8%，而继续提高COD/TN对系统同步脱氮效果的影响并不明显。在反应器允许的条件下，提高污泥质量浓度(MLSS)有利于提高系统反硝化脱氮效果，TN去除率随MLSS的增加而提高。

关键词: 复合生物反应器, 缺氧, 好氧, 脱氮, 污水处理

Abstract:

By regulating aeration system, anoxic and aerobic areas can coexist in the micro-pressurized fluidized hybrid biological reactor(MP-FHBR). Using the characteristic and the mixed organism of activated sludge and suspended biofilm coexisting in the MP-FHBR, study was conducted for simulataneous nitrogen removal. The experimental results showed that, nitrogen can be effectively simulataneous removal under the condition of anoxic-aerobic in the MP-FHBR. Under the conditions of this experiment, removal rates of TN and COD reached 77.5% and 98.3% respectively. Reducing the DO concentration to form completely anoxic environment within the reactor have no significant influence on TN removal effect of MP-FHBR, but it reduce the COD removal rate of the system. Improving the DO concentration to form completely aerobic environment within the reactor, TN removal effect of MP-FHBR decreased significantly. With the increasing of COD/TN, the TN removal efficiency was increased. TN removal efficiency was increased from 58.4% to 78.8%, when COD/TN was increased from 2 to 10, further increasing COD/TN, TN removal effect was not significantly increased. With the increase of MLSS, the TN removal efficiency was increased, leading to a more apparent denitrification efficiency of MP-FHBR.

Key words: hybrid biological reactor, anoxic, aerobic, nitrogen removal, water pollution control

中图分类号:

X523

刘淼, 陈睿阳, 李广柱, 郎贵林. 微压流化式复合生物反应器的同步脱氮[J]. J4, 2012, 42(3): 832-837.

LIU Miao, CHEN Rui-yang, LI Guang-zhu, LANG Gui-lin. Simulataneous Nitrogen Removal in the Micro-Pressurized Fluidized Hybrid Biological Reactor[J]. J4, 2012, 42(3): 832-837.

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