pH值对新型SBBR处理畜禽废水脱氮的影响.pdf

文档介绍：2009 年 10 月第三届全国农业环境科学学术研讨会论文集 821
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pH值对新型SBBR处理畜禽废水脱氮的影响
朱春兰,肖鸿,邓仕槐,段焱,孙亚琴,胡晓梅,侯麟
(四川农业大学环境工程系,雅安 625014)

摘要:以畜禽废水为处理对象,考察 pH 值对新型 SBBR 处理畜禽废水脱氮的影响。结果表明:在原水 pH 值为 7
和 8 的条件下,系统脱氮效果较好,总氮的去除率达到 85%以上,pH值为 6 和 9 的时候总氮去除率下降至 50%~60%;
系统对 pH 值有着明显的调节作用;新型 SBBR 内存在同步硝化反硝化及短程硝化反硝化作用。
关键词:畜禽废水;新型 SBBR;pH 值;脱氮

Effect of pH on Nitrogen Removal of Poultry-wastewater with the New-style SBBR
ZHU Chun-lan, XIAO Hong, DENG Shi-huai, DUAN Yan, SUN Ya-qin, HU Xiao-mei, HOU Lin
(Department of Environmental Engineering,Sichuan Agriculture University,Ya′an 625014)
Abstract: A new-type SBBR was used to treat the poultry-wastewater, investigated on the removal efficiency n of nitrogen in
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different pH conditions. When it was at the room temperature,the CODCr of influent was about 2000 mg·L ,and the TN was
about 140 mg·L-1,keeped dissolved oxygen as ~ mg·L-1,The results showed that the treatment effect of an alternative
aerobic and anaerobic mode was good to SND and shortcut nitrification and denitrification;We studied four pH conditions, pH
had an obvious effect on dispose of TN:when the pH of poultry-wastewater was 7 or 8, the results turned out to be better, the
removal rate of TN exceed 85%,and the main way of nitrogen removal was simultaneous nitrification and denitrification as soon
as the short-cut nitrification-denitrification.
Keywords: poultr