生物接触氧化技术在低温条件下脱氮除磷效果试验研究  

STUDY ON REMOVAL OF NITROGEN AND PHOSPHORUS BY BIO-CONTACT-OXIDATION PROCESS AT LOW TEMPERATURE

作　　者：梁建祺[1] 宁寻安[1] 

机构地区：[1]广东工业大学环境科学与工程学院,广州510006

出　　处：《环境工程》2009年第S1期334-336,37,共4页Environmental Engineering

基　　金：广东省科技计划项目(2005B33301007)

摘　　要：采用生物基接触氧化技术在低温下治理污染河涌,分析了低温条件下生物基接触氧化技术去除有机物及脱氮除磷的效果。实验结果表明:在温度为8～22℃,停留时间为1d时,生物接触氧化技术对河涌水体中的有机物、氨氮、总氮及总磷的平均去除率分别达到70%、97%、34%和32%,远低于常温下的去除率,通过扫描电镜和显微镜观察在低温时填料中微生物种群明显减少。Polluted river treatment by bio-contact-oxidation process was carried out at low temperature.The effect of temperature on organics,nitrogen and phosphorus removal by bio-contact-oxidation process was analyzed.The results show that under the condition of water temperatures of 8～22℃,HRT=1 d,the removal ates of COD,NH_3-N,TN and TP were 70%,97%,34%and 32% respectively.The microorganism population in bio-film carrier decreases obviously by using SEM and microscope.

关 键 词：生物接触氧化 低温 脱氮除磷 SEM 

分 类 号：X703[环境科学与工程—环境工程]