湘江微污染饮用水源生物过滤试验研究

通过试验探讨了生物过滤对湘江微污染饮用水源的处理效果。试验结果表明，生物过滤可有效去除湘江微污染饮用水源中的可同化有机炎(AOC)、可生物降解有机炎(BDOC)、氨氮、铁、锰和浊度，提高饮用水生物稳定性。不同滤料介质组成的生物滤池具有不同的去除效果。由活性碳、石英砂组成的生物滤池对AOC、BDOC、氨氮、铁、锰等的去除效果比由无烟煤、陶粒和石英砂等滤料组成的生物滤池好，加氯水反冲洗对生物过滤具有明显的负面影响。

Experimental Research of Biofiltration of Micro-polluted Drinking Water Resource of Xiangjiang River

The research examined the results of micro polluted drinking water biofiltration. The results show that the biofiltration can effectively remove assimilable organic carbon(AOC),biodegradable dissolved organic carbon(BDOC),ammonium,iron,manganese and turbidity in the micro polluted drinking water resources of Xiangjiang river,and raise the biological stability of drinking water.The biofilters with different filter media have different removal of pollutants.The GAC sand biofilters have better removal of AOC,BDOC,ammonium,iron and manganese than the anthracite sand bifilter or sand biofilter.The backwashing with chlorinated water has evidently harmful effect on the biofilters.