%0 Journal Article
%T Effects of seawater salinity on nitrite accumulation in short-range nitrification to nitrite as end product
%A YU De-shuang
%A PENG Yong-zhen
%A ZHANG Kui
%A <br>YU De-shuang
%A PENG Yong-zhen
%A ZHANG Kui
%J 环境科学学报(英文版)
%D 2004
%I 
%X The effect of seawater salinity on nitrite accumulation in short-range nitrification to nitrite as the end product was studied by using a SBR. Experimental results indicated that the growth of nitrobacteria was inhibited and very high levels of nitrite accumulation at different salinities were achieved under the conditions of 25-28 degrees C, pH 7.5-8.0, and the influent ammonia nitrogen of 40-70 mg/L when seawater flow used to flush toilet was less than 35% (salinity 12393 mg/L, Cl- 6778 mg/L) of total domestic wastewater flow, which is mainly ascribed to much high chlorine concentration of seawater. Results showed that high seawater salinity is available for short-range nitrification to nitrite as the end product. When the seawater flow used to flush toilet accounting for above 70% of the total domestic wastewater flow, the removal efficiency of ammonia was still above 80% despite the removal of organics declined obviously (less than 60%). It was found that the effect of seawater salinity on the removal of organics was negative rather than positive one as shown for ammonia removal.
%K seawater salinity
%K short range nitrification-denitrification to nitrite as the end product
%K nitrite accumulation
%K organics removal efficiency
%K ammonia removal efficiency<br>海水盐度
%K 亚硝酸盐
%K 硝化作用
%K 氨
%K 有机物
%K 去除率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=D1170E3A344CC5A0E1B3A938CC26F18F&yid=D0E58B75BFD8E51C&vid=7801E6FC5AE9020C&iid=0B39A22176CE99FB&sid=002786F01A86D891&eid=4B1FFFA116F7AE3B&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=11