利用蒙脱石吸附氧化处理微污染水源水

ADSORPTION AND OXIDIZATION BY MONTMORILLONITE TREATED MICRO-POLLUTION RAW WATER

为研究蒙脱石吸附氧化处理微污染水源水的可行性和特性,将蒙脱石粉末投放到预曝气池中对污染较重的水源水进行了95d的生产性处理试验。运行结果表明:CODMn平均去除率达48.48%,出水色度为8～15倍;浊度平均去除率达96.42%;氨氮平均去除率达80.77%;分析认为,蒙脱石吸附氧化处理微污染水源水中的污染物是一系列物理、化学和生物三者协同作用的结果,而且效果很好,说明利用蒙脱石吸附氧化处理微污染水源水是可行的。

To study the feasible and characteristic on adsorption and oxidization by montmorillonite treated micro-pollution water, montmorillonite powder was threw into the pre-aerated tank and it has been full scale treated experiment of more serious raw water for more 3 months （95days）. The operational results show that the influent CODMn is 4.6-9.97mg/L, the effluent CODMn is 2.2-5.52mg/L, the elimination rate is 26.42%-65.14%, average elimination rate reach 48.48%; the influent color is light yellow or dark red, the effluent chromaticity is 8-15 times ; the influent turbidity is 9.5- 35NTU, the effluent turbidity is 0.16-1.2NTU, the elimination rate is 92.14%-99.38%, the average elimination rate is 96.42%; the influent ammonium is 1.03-3.44mg/L, the effluent ammonium is 0.002-1.48mg/L, the elimination rate is 43.12%-99.87%, the average elimination rate is 80.77%; and the effluent dissolved oxygen（DO） increase by 148% than the influent. Finally, the analysis is that adsorption and oxidization by montmerillonite treated micro-pollution raw water depend on three synergetic effects of physical, chemical and biological, and the effect is very stable, it indicate that adsorption and oxidization by montmorillonite treated micro-pollution raw water is feasible.