大连大学生活污水生物脱氮的实验研究  

Experimental research on the biological nitrogen-removal for the domestic sewage of Dalian University

作　　者：杨永义[1] 朱波[1] 徐继润[1] 

机构地区：[1]大连大学环境与化学工程学院,辽宁大连116622

出　　处：《大连大学学报》2006年第6期35-38,42,共5页Journal of Dalian University

摘　　要：采用改进的生物接触氧化法对大连大学生活污水进行生物脱氮研究.该工艺结合内回流和生物膜的特点,实现了同步硝化反硝化作用,提高了反应器对各种水质水量的适应性.实验结果表明,改进后的生物接触氧化反应器在不影响去除有机物的情况下,对总氮的去除率提高了约14.7%,对氨氮的去除率提高了25.7%以上,并且不用外加碳源进行反硝化,也不用加碱进行硝化.The biological nitrogen-removal for the domestic sewage of Dalian University was investigated in this paper with an improved biological contact oxidation method. The modified technology was to combine the characteristic of internal circulation with that of bio-film process, and to realize the simultaneous nitrification and denitrification in one reactor, and then to increase the suitability of the reactor for the verified wastewater. The experimental results showed that at the present of similar CODer removal the improved technology enhanced the total nitrogen removal of 14.7% and ammonia nitrogen removal of 25.7%. Meanwhile, the nitrification carried out without addition of basic and the de-nitrification processed with no additional carbon in the new reactor.

关 键 词：水处理 生物脱氮 同步硝化反硝化 水力停留时间 碳氮比. 

分 类 号：X703.1[环境科学与工程—环境工程]