生物过滤去除饮用水中微量有机物的研究与发展  

Study and development on biofiltration that removed trace organics in drin king-water sources

作　　者：余健[1] 曾光明[2] 柏光明 曾富益 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]湖南大学环境科学与工程系,湖南长沙410082 [3]长沙市自来水公司,湖南长沙410015

出　　处：《工业水处理》2003年第9期8-13,共6页Industrial Water Treatment

基　　金：国家自然科学基金资助项目(70171055)

摘　　要：简要回顾了最近20多年来国内外对饮用水生物过滤的研究历史,运用Lawrence-McCarty公式和微生物增殖基本方程式,推导了最小基质浓度Smin的计算公式,阐明了第二级利用机理是生物过滤去除饮用水中微量的合成有机物的主要机理,自然有机物是降解微量合成有机物的微生物的主要碳源和能源。探讨了过滤介质、空床接触时间、反冲洗方式、水温、水源水质和预氧化等因素对生物过滤效果的影响,展望了饮用水生物过滤的发展方向及在我国微污染饮用水处理方面的应用前景。It revie ws the history of a study of drinking water biofiltration both home and abroad in the last20years,and derivates the formula of a minimal substrate concentr ation(S min )by using the Lawrence-McCarty for-mula and basic equation of microbiolog y growth and loss,and expounded the theory of secondary utilization is the main mechanism of the biofiltration that removes trace levels of synthetic organic c hemicals in the drinking-water sources,and demonstrates that natural organic m atter is the principal energy sources and carbon sources of the microbiology tha t degrade trace levels of synthetic organic chemicals.The effects of the factor s such as filter me-dia,empty contact time ,ways of backwashing,temperature of water,quality of water resources and preoxidation on the biofiltration are d iscussed.The development of biofiltration and the prospect of its application to micro-polluted drinking water treatment in China are assessed.

关 键 词：生物过滤 饮用水 自然有机物 合成有机物 降解 水处理 生物稳定性 安全性 

分 类 号：TU991.2[建筑科学—市政工程] TQ085.4[化学工程]