有机物对沸石去除氨氮的影响  

INFLUENCE OF ORGANICS ON AMMONIA-NITROGEN REMOVAL BY ZEOLITE

作　　者：董秉直[1] 夏丽华[1] 高乃云[1] 

机构地区：[1]同济大学环境科学与工程学院,上海200092

出　　处：《水处理技术》2005年第8期10-13,共4页Technology of Water Treatment

基　　金：国家高技术研究发展计划(863)资金资助;2002AA601130国家科技攻关计划重大项目资助(200BA808A17)

摘　　要：采用改性的安徽繁昌天然斜发沸石,进行有机物对氨氮去除的影响试验。结果表明:沸石能有效地去除大分子的有机物,对小分子有机物的去除效果很差。因此,具有较大相对分子质量的有机物会妨碍沸石去除氨氮。去除大分子有机物能有效地提高氨氯的去除效果。混凝与沸石的组合能有效地去除氨氮和有机物。The natural clinoptilolite zeolite of Fanchang County, Anhui Province, was selected and modified for evaluating impact of organics on removal of ammonia-nitrogen by zeolite. The results demonstrated that the zeolite could be effective for removing higher molecular weight （MW） organics but less effective at lower one. Therefore, removal of organics with higher MW could enhance the efficiency of ammonia-nitrogen removal by zeolite, which might otherwise impede the removal. The zeolite coupled with coagulation can remove both ammonia-nitrogen and organics effectively.

关 键 词：天然沸石 氨氮 有机物 分子量分布 混凝 

分 类 号：X703.5[环境科学与工程—环境工程]