微污染水源饮用水处理工艺中试试验对比分析  

Experimental Comparison and Analysis of Pilot Scale Test for Drinking Water Treatment Processes of Micro-Polluted Raw Water

作　　者：李璇 刘武平 吕锡武[3] 

机构地区：[1]江苏辐环环境科技有限公司,江苏南京210038 [2]中国市政工程西南设计研究总院有限公司,四川成都610081 [3]东南大学能源与环境学院,江苏南京210096

出　　处：《净水技术》2016年第3期68-74,共7页Water Purification Technology

摘　　要：文中针对长江南京段微污染水源水的特点,考察了常规工艺、强化常规工艺和生物活性炭工艺对原水中有机物的去除效果,分析了不同季节和水质条件下强化常规工艺和生物活性炭工艺中生物处理的稳定性。试验结果表明,三种工艺对以COD_(Mn)和UV_(254)为指标的有机物都有较好的去除效果;常规工艺对分子量>5 kD的大分子有机物的去除效果较好,但出水未能达到生物稳定性的要求,且冬季存在出水氨氮(NH_3-N)超标的问题;强化常规工艺和生物活性炭工艺出水水质稳定,对原水中占多数的<1 kD的有机物去除效果更显著,大幅度降低了水中可生物降解有机物(BDOC和AOC)含量,对1,2,4三氯苯去除效果明显,在低温及高NH_3-N时期仍能有效降低出水有机物含量,是微污染水源水处理的有效工艺。According to features of the micro-polluted raw water from the Yangtze River（Nanjing section）,characteristics and mechanisms of conventional process,enhanced conventional process and BAC（Biological activated carbon） process were studied,with pollution indexes such as CODMn,UV254 etc.The results show that all of three processes have good effect on CODMn and UV254.Conventional process has high removal rates on macromolecular organic pollutants（Molecular Weight 5 kD）,but its effluent is not biological stable and the effluent of the water plant contains over standard ammonia in winter.Enhanced conventional process and BAC process can effectively remove small organic molecules（Molecular Weight 〈1 kD）,which is more than half in raw water,significantly reduce the biodegradable organic matter content,make considerable reduction on 1,2,4-trichlorobenzene content,and work effectively and efficiently even when the temperature is low and NH4^＋N content is high.Therefore,enhanced conventional water treatment process and BAC process are effective technologies for micro-polluted raw water.

关 键 词：微污染原水 饮用水处理 溶解性有机物 常规工艺 强化常规工艺 生物活性炭工艺 对比分析 

分 类 号：TU991.1[建筑科学—市政工程]