臭氧生物活性炭净水工艺参数选择及影响因素研究

Study on the Technological Parameters and Influence Factors in the Water Treatment Processes with O_3-BAC

该文通过臭氧生物活性炭净水工艺在不同运行参数下的净水效果比较,得出影响臭氧生物活性炭工艺的主要因素,包括滤速、停留时间、炭层高度、余臭氧浓度、水温等,通过这些参数的改变最终得出闵行水厂臭氧生物活性炭深度处理的基本控制参数。活性炭层高度为2．0 m,接触时间15 min(即滤速8 m／h);进活性炭滤池水的臭氧浓度应为0．05-0．2 mg/L;水温大于9℃时,活性炭滤池除NH3率可达90％以上;气温对NH3去除率有较大影响,因此活性炭滤池最好设在室内。

In this paper, results of l＇esearch on the technological parameters and influence factors obtained through experiments was introduced. The optimum conditions of the water treatmext with O3-BAC are as follows： depth of GAC layer 2.0 m; HRT 15 min; residual 03 Conc. of the influent of BAC filter 0.05-0.2 my/L; at water temp. 〉9℃, removal rate of NH3-N〉90%; arm. temp. gives great influence to the removal rate of NH3-N, and thus indoor BAC filter must be needed.