高密度沉淀池-超滤组合工艺对黄河微污染水源的处理效果

Treatment Effectiveness of Group Technology of High Density Sedimentation Tank and Ultra-filtration on the Yellow River Slightly-polluted Water

针对黄河微污染水源的水质特点,采用高密度沉淀池-超滤组合工艺对其进行处理,出水浊度可稳定在0.1NTU以下.在投加粉末活性炭(10mg/L)的情况下,COD_(Mn)平均去除率为43.84%,对藻类的去处率能达到100%,能够完全去除细菌、病毒等.结果表明,该组合工艺的处理效果比单独高密度沉淀池的处理效果有较大的提高,水质指标均满足《生活饮用水卫生标准》(GB5749—2006)的相关要求.

For water quality characteristic of the Yellow River slightly-polluted sources, group technology of high density sedimentation tank and ultra-filtration is applied to it. The results shows the effluent turbidity can stabilize below 0.1 NTU, and in the condition of dosing powdered activated carbon （ 10 mg/L） , removal rate of CODmn can reach to 43.84% , and algae 100% , bacteria, viruses, etc can be completely removed. Therefore water treatment effectiveness of the combined process than the original target process is greatly improved, and can fully meet the relevant water quality requirements of the ＂drinking water health standards＂ （GB5749--2006）.