摘要
采用模拟试验的方法，考察混凝剂与粉末活性炭（PAC）投加去除姚江原水溶解性有机物（DOC）的效果．试验结果表明，表征活性炭吸附性能的碘值与亚甲基兰值与有机物去除效果无显著相关性；混凝处理主要去除的是分子质量1×10^～3×10^4u区段的有机物，而粉末活性炭处理其他区段的有机物效果较好，尤其是分子质量小于1×10^4u区段，去除率均在40％以上；混凝处理分子质量小于3×10^3u区段的有机物效果较差，几乎全部依赖粉末活性炭去除，该区段质量分数占姚江原水的70％，这是处理姚江原水时粉末活性炭投加量相对较大的主要原因．
A simulated study was conducted to investigate the effects of powdered activated carbon （PAC） adsorption and coagulation on removal of dissolved organic compounds （DOC） from Yao River. The experimental results show that no significant correlation is found between organic compounds removal and iodine value or methylene blue value which are typical index for describing the adsorption ability of PAC. Coagulation preferentially removes DOC with molecular weight （MW） raging from 1 × 10^4 to 3 × 10^4 u and PAC mainly adsorbed DOC with other MW regions, especially with over 40 % removal efficiency for DOC with less than 1 × 10^4 u. Organic compounds with less than 3 × 10^3 u occupies 70 % of total DOC mass in raw water of Yao River. These organic compounds are mainly removed by PAC rather than by coagulation, resulting in high adding amount of PAC for treatment of raw water from Yao River.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第12期1670-1673,1718,共5页
Journal of Tongji University:Natural Science
关键词
饮用水处理
粉末活性炭
有机物分子质量分布
溶解性有机物
drinking water treatment
powdered activated carbon（PAC）
molecular weight distribution of organic compounds
dissolved organic compounds （DOC）
