海水养殖废水处理中的运行效果.pdf

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工
进展
2011年第30卷第11期
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2545
研究开发
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缺氧动态膜生物反应器在淡水/海水养殖废水处理中的运行效果
卢芳芳,洪俊明,尹娟
(华侨大学化工学院,福建厦门361021)
摘要:采用缺氧动态膜生物反应器( Anoxic-DMBR)处理淡水和海水养殖废水。结果表明:缺氧动态膜生
物反应器对淡水养殖废水和海水养殖废水的 COD去除率分別为89.5%和75.5%;出水总氩浓度分別为1.42
mg几L和3.50mg/L,污泥浓度分别为3850mgL和3550mgL。由于盐度对反硝化菌的酶产生一定的抑制作用,
在海水条件下反硝化效率降低了16%。淡水和海水养殖废水的NO3N的降解速率常数分别为5.02x10-“h和
4.48x10~4h,海水反硝化过程的反应速率低于淡水条件。
关键词:缺氧动态膜生物反应器;海水养殖废水;反硝化作用
中图分类号:X703
文献标志码:A
文章编号:1000-6613(2011)11~-2545-04
Study on the operational effect of an anoxic dynamic membrane bioreactor
for aquaculture/mariculture wastewater treatment
LU Fangfang, HONG Junming, YIN uan
College of Chemical engineering, Huagiao University, Xiamen 361021, Fujian, China)
Abstract: An anoxic dynamic membrane bioreactor (ANOXIC-DMBR was used to treat
aquaculture/mariculture wastewater. The results showed that the CODMN removal rates by A-DMBR for
treating aquaculture and mariculture wastewater were 89.5% and 75.5%. The TN concentrations of
effluent were about 1 42 mg/L and 3.50 mg/L. And the sludge concentrations were 3850mg/L and
3550 mg/L respectively. Because of the inhibition effect of salt on denitrification enzyme, the
nitrification efficiency decreased by 16% The cons ants of NO N reduction rate were 5.02x10h
and 4.48x10 h in freshwater and seawater respectively. The reaction rate of the denitrification
process in seawater was lower than that in freshwater
Key words: anoxic dynamic membrane bioreactor; mariculture wastewater; denitrification
我国的水产养殖业有悠久的历史,水产养殖产染21。因此,研究淡水和海水养殖废水水质条件下
量多年居世界首位。水产养殖生产过程中环境污染NO3-N的反硝化脱氮动力学过程具有す分重要的
导致的生态失衡、环境恶化、资源萎缩的状况在国意义
内外已十分严重。鱼类的饵料大部分通过鳃的扩散、
动态膜生物反应器是传统膜生物反应器和动
离子交换及代谢产物或残饵的形式排入水中,这
些大量存在的含氮废物会导致水中氮污染物的过
收稿日期:2011-05-03:修改稿日期:2011-05-17
基金项目:国家自然科学基金(51078157)、厦门科技计划
度积累。硝态氮(NO3-N)浓度过高会使水中(3000及华桥大学基本科研业务费专项基金(JBCn005
的营养平衡失调,并且在局部厌氧条件下会转化为
项目。
要从事水
亚硝态氮(NO2-N,高浓度的NOっ-N不仅对水联系人、洪俊明,博士,副教,额士生导师,研究方向为水污染控
产养殖类有影响,排放也对周边水体造成严重的污制工程及清洁生产。E-mailjihong@Phqu.edu.cn