Effect and mechanism of removal of nitrogen in the mimic sewage using bio-zeolite system

CORC > 北京大学 > 城市与环境学院

	Effect and mechanism of removal of nitrogen in the mimic sewage using bio-zeolite system
	Zhang Xi ; Wu Weizhong ; Wen Donghui ; Tang Xiaoyan
刊名	环境科学
	2003
英文摘要	On the spot, the removal effect of pollutants such as NH3-N, N, NO3(-)-N, NO2-(-)N, TN and COD in the mimic sewage by bio-zeolite system was studied. The following results were obtained: it was obvious and stable for the removal of NH3-N by bio-zeolite with a removal efficiency over 95%, but the removal effect of NO3(-)-N was affected deeply by hydraulic retention time, according to the different removal mechanism; chemical adsorption and ion exchange were the main reasons for the removal of NH3-N as well as nitrification by microbe, while denitrification was the main reason for the removal of NO3(-)-N. Nitrification intensity of bio-zeolite was affected by the concentration of dissolved oxygen in the solution, so the nitrification intensity of bio-zeolite on the surface of the zeolite bed was two times of that in the middle in vertical direction. Denitrification intensity changed with different values of C/N in the study, and it could reach the maximum while COD/TN was 5; as for denitrification velocity, it was largest in the first six hour.; PubMed; 中文核心期刊要目总览(PKU); 中国科学引文数据库(CSCD); 0; 5; 75-80; 24
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/346580]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Zhang Xi,Wu Weizhong,Wen Donghui,et al. Effect and mechanism of removal of nitrogen in the mimic sewage using bio-zeolite system[J]. 环境科学,2003.
APA	Zhang Xi,Wu Weizhong,Wen Donghui,&Tang Xiaoyan.(2003).Effect and mechanism of removal of nitrogen in the mimic sewage using bio-zeolite system.环境科学.
MLA	Zhang Xi,et al."Effect and mechanism of removal of nitrogen in the mimic sewage using bio-zeolite system".环境科学 (2003).