文献类型：期刊文献

中文题名：陶粒改性对生物膜特性及除污效能的影响

英文题名：Modified Ceramsite on the Biofilm Characteristics and the Influence of the Decontamination Efficiency

作者：江子建[1];陈秀荣[1];许孔耀[1];吴健[1]

机构：[1]华东理工大学资源与环境工程学院,上海200237

年份：2016

卷号：39

期号：3

起止页码：56

中文期刊名：环境科学与技术

外文期刊名：Environmental Science & Technology

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家科技重大专项课题(2014ZX07202-011-002);国家自然科学基金项目(51378207)

语种：中文

中文关键词：改性陶粒;TP;TN;COD;多糖;脱氢酶活性

外文关键词：modified ceramsite; TP; TN; COD; polysaccharide; dehydrogenase activity

摘要：为改善陶粒的除磷性能,该实验分别用FeCl_3和CaCl_2对普通陶粒进行改性,并考察了表面改性对陶粒表面的生物膜特性和除污特性的改善。结果表明,经FeCl_3和CaCl_2改性的陶粒对TP的去除率更高,但吸附效能随运行时间延长有下降趋势;陶粒经改性处理后表面生物膜多糖含量更多,脱氢酶活性更强,对TN和COD有较好的去除效果。
The ceramsite was respectively modified using FeCl3 and CaCl2 to improve the phosphorus removal performance and examine the surface characteristics of biofilm and the removal efficiency. The results showed that compared to unmodified ceramsite,the higher TP removal efficiency was obtained for modified ceramsite. Nonetheless,the adsorption effect of the ceramsite was significantly reduced at the later period. Meanwhile,after the ceramsite was modified,the content of polysaccharide and the activity of dehydrogenase at the surface of biofilm were higher and the removal effect of TN and COD was better than unmodified ceramsite.