南京地区水厂上、下向流生物活性炭工艺应用效能对比
Comparative of Application Efficiency of Upflow and Downflow Biological Activated Carbon Technology in WTPs in Nanjing Area
周冰洁 1兰童 2王萌 1杨遇春 2毛步云 1刘成 2陈卫2
作者信息
- 1. 南京水务集团有限公司,江苏南京 210043
- 2. 河海大学环境学院,江苏南京 210098
- 折叠
摘要
通过对南京地区两水厂中上向流和下向流生物活性炭(biological activated carbon,BAC)池的长期检测,系统对比了两种类型BAC的净化效能和自身性能变化规律.结果表明,在水厂长期运行过程中,上向流BAC池对氨、高锰酸盐指数等水质指标的总体去除效能优于下向流BAC池;上向流、下向流BAC池中BAC的碘值和亚甲蓝值衰减程度相近,但上向流BAC池中BAC颗粒的吸附性能优于下向流水厂;运行8年后,两类BAC池中生物量和生物活性都趋于稳定,但上向流BAC池中的微生物群落丰富度较高,生物降解性能较好.
Abstract
Through the long-term detection of upflow and downflow biological activated carbon(BAC)filters in two water treatment plants(WTPs)in Nanjing area,the purification efficiency and self-performance of the two types of BAC were systematically compared.The results showed that the overall removal efficiency of upflow BAC pool to ammonia,permanganate index and other water quality indices was better than that of downflow BAC pool during long-term operation.The decay degree of iodine and methylene blue values of BAC in upflow and downflow BAC pools was similar,but the adsorption performance of BAC particles in upflow BAC pools was better than that in downflow BAC WTPs.After 8 years of operation,the biomass and biological activity of the two types of BAC pools tended to be stable,but the microbial community richness of the upflow BAC pools was higher and the biodegradation performance was better.
关键词
生物活性炭池/上向流/下向流/氨/碘值/种群结构Key words
biological activated carbon filter/upflow/downflow/ammonia/iodine value/populative structure引用本文复制引用
基金项目
国家重点研发计划重点专项(2022YFC3203702)
出版年
2024
国家科技期刊平台
NSTL
万方数据