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当前位置: 首页 > 文章 > pH值对猪场养殖废水常温短程硝化特性的影响 农业机械学报 2011,42 (10) 181-185+166
Position: Home > Articles > Effect of pH Value on Characteristics of Shortcut Nitrification for Swine Wastewater Treatment under Normal Temperature Transactions of the Chinese Society for Agricultural Machinery 2011,42 (10) 181-185+166

pH值对猪场养殖废水常温短程硝化特性的影响

作  者：
闫立龙;张颖;李传举;代英杰;韩雪
单  位：
东北农业大学资源与环境学院
关键词：
猪场废水;pH值;短程硝化;SBR
摘  要：
为实现高氨氮猪场养殖废水高效脱氮处理,针对猪场废水中尿素(主要源于猪尿液)水解过程伴随着污水pH值的变化现象,采用序列间歇式活性污泥法(SBR)处理某猪场养殖废水,在常温(20℃)、非限制溶解氧的条件下,考察了pH值、曝气时间等因素对氨氮去除效果和短程硝化特性的影响。实验结果表明,pH值在7.0～9.5范围内亚硝酸盐积累率在75%～80%之间;长时间曝气并未对短程硝化造成影响;高质量浓度氨氮废水生物处理过程中,亚硝酸盐积累与进水pH值、游离氨(FA)及游离亚硝酸(FNA)有关。
译  名：
Effect of pH Value on Characteristics of Shortcut Nitrification for Swine Wastewater Treatment under Normal Temperature
作  者：
Yan Lilong Zhang Ying Li Chuanju Dai Yingjie Han Xue (School of Resource and Environment,Northeast Agricultural University,Harbin 150030,China)
关键词：
Swine wastewater,pH value,Shortcut nitrification,Sequencing batch reactor activated sludge process
摘  要：
In order to achieve high efficient nitrogen removal from high ammonium-nitrogen swine wastewater,sequencing batch reactor activated sludge process(SBR) was used to treat swine wastewater to the phenomenon which the urea(mainly from pig urine) hydrolysis of swine wastewater was accompanied by changes of pH value.Under conditions of normal temperature(20℃) and non-restricted dissolved oxygen,effects of pH value and aeration time on ammonium removal,characteristics of shortcut nitrification were studied.The results showed that nitrite accumulation rate was 75%～80% when pH value was 7.0～9.5.Shortcut nitrification would not affected by long-term aeration.In the biological treatment process of high ammonium-nitrogen wastewater concentration,the nitrite accumulation was related to levels of pH value,free ammonia(FA) and free nitrite(FNA) in influent.

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