生物活性炭滤池对污染物去除效果预测模型建立方法的介绍

An Introduction of the Method for Developing Models on the Removal of Organic Contaminants in BACs

对生物活性炭滤池的模型建立方法进行了介绍,从生物活性炭滤池去除有机物的效果、滤池内发生的各反应的机理及假设条件几个方面着手,具体包括水流的流动过程、生物膜降解污染物(基质)的过程、污染物在水流中以及生物膜中的传质过程,以及滤料本身对污染物的吸附过程。同时,对确定和估算模型参数给出了建议,为预测污染物在生物活性炭滤池的去除效果提供了技术支撑。

The method on how to develop a model for BAC was introduced and summarized.The development of the model considered contaminant removal efficiency in BAC,reaction mechanisms occurring in filter bed,and model assumptions.Specifically,the mechanisms were taken in to account including flow behavior,biodegradation of the contaminants(substrates),mass transfer between contaminants and aqueous phase,mass transfer between contaminants and biofilm as well as the adsorption in support material.In addition,recommended methods for determination and calculation of model parameters were also summarized.Overall,the paper provided a technical support on estimation of organic contaminant removal in BAC.