基于太湖水源的水质深度处理工艺选择及效果评估  

Technological choice of drinking water depth processing based on source water from Taihu and its effect assessment

作　　者：肖琦[1] 查巧珍 陆颂文 李建[1] 杨海兵[1] 

机构地区：[1]苏州市疾病预防控制中心,江苏苏州215004 [2]苏州新区新宁自来水有限公司

出　　处：《中国卫生工程学》2015年第4期303-307,310,共6页Chinese Journal of Public Health Engineering

基　　金：苏州市医学重点学科(2013);水质监测平台(2011)

摘　　要：目的探索太湖水源水深度制水工艺,为百姓提供安全、健康的生活饮用水。方法根据原水水质特征选择适宜的饮用水深度处理工艺,进行优化组合和效果评估。结果当前微污染原水水质的改进方法主要包括强化的常规水质处理和开发深度制水工艺;该水厂以太湖水为原水,其水质特征为:总氮和总磷偏高、水质处于轻度富营养化状态,藻类暴发季节性特征明显,小分子量(<3 k)有机物所占比例高约占60%;宜采用臭氧预处理和臭氧-生物活性炭深度处理工艺;出厂水水质符合《生活饮用水卫生标准》(GB 5749-2006)。结论太湖水源深度处理非常必要,本水厂采用臭氧预处理和臭氧-生物活性炭工艺能满足需要。建议加强深度处理后的水质监测和风险评估,完善和优化工艺流程。Objective To explore the technology of drinking water depth processing based on source water from Taihu in order to supply safety and healthy drinking water for people. Methods The technology of drinking water depth processing was selected and optimized according to source water feature and was assessed its effect. Results Currently, the improve- ment technology of water quality on slight - polluted source water had included intensive - convention water processing and drinking water depth processing. Source water features from Taihu had included tiny - higher level of total - nitrogen and phosphorus, light- eutrophication, seasonal characteristic of algae break- out, the percentage was about 60% of organics （ less than 3 k）. It was suitable for the water factory to adopt ozone - pretreatment and ozone - biological activated carbon. After depth processing, the water quality met the Sanitary Standard for Drinking Water （GB 5749 -2006）. Conclusion It is necessary to adopt drinking water depth processing for source water from Taihu. The technology of ozone - pretreatment and ozone - biological activated carbon meets the demand of the water factory. It is necessary to reinforce the water monito- ring and hazard assessment, perfect and optimize the technological process.

关 键 词：太湖水源 深度制水工艺 臭氧-生物活性炭 

分 类 号：R123.5[医药卫生—环境卫生学]