湘江微污染饮用水源水生物过滤去除特性研究

通过试验探讨了不同滤料介质组成的生物滤柱对湘江微污染水源的处理效果。结果表明,生物过滤具有良好的去浊性能,浊度的去除是传统吸附截留和生物吸附共同作用的结果;生物过滤可有效去除微污染水源中的有机物,NH+4-N,总铁和Mn2+,提高饮用水生物稳定性。颗粒活性炭-石英砂双层滤料组合要优于石英砂单层滤料和无烟煤-石英砂双层滤料,加氯水反冲洗不利于生物滤池的运行。 

Research on Characteristics of Treatment of Xiangjiang River Micro-Polluted Resource Water by Biofiltration

The effect of Xiangjiang River micro-polluted water treatment by different media biofilters is experimented.The results show that biofiltration has favorable character on turbidity removal,and removal of turbidity is the result of combined action of conventional adsorption and biological adsorption.Biofiltration can effectively remove organic matter,ammonium,iron and manganese,and enhance biological stability of drinking water.The granule active carbon(GAC)-sand media is superior to sand media and anthracite-sand media,and the backwashing water with residual chlorine will do harm to the operation of the biofiltration.