本研究考察了生物滤池进水和反冲洗水中游离和组合C12对所选可生物降解有机物（BOM）组分的去除以及此类滤池中活性生物量的积累的影响。使用四个平行的50毫米（2英寸）在实验室规模上收集数据ID玻璃滤柱。向色谱柱的进水中加入易生物降解物质的混合物。结果表明，在持续存在C12的情况下，无阈值C12浓度低于0.2 mg/L C12，超过该浓度时，易于生物降解的BOM组分的去除受到抑制。对于持续存在的组合C12，发现该阈值浓度在0.1至0.3 mg/L C12之间。氯化反冲洗水（~1 mg/L C12）极大地损害了醋酸盐和甲酸盐的去除，尤其是当反冲洗水中的氯以游离C12的形式存在时。

This study investigated the effects of free and combined C12 in biofilter influents and the backwash water on the removal of selected biodegradable organic matter (BOM) components and the accumulation of viable biomass in such filters. Data were collected at bench-scale using four parallel 50 mm (2") ID glass filter columns. The influent of the columns was dosed with a cocktail of easily biodegradable substances. The results showed that in the case of the continuous presence of C12, the threshold free C12 concentration above which the removal of easily biodegradable BOM components is inhibited was less than 0.2 mg/L C12. For continuously present combined C12, this threshold concentration was found to be between 0.1 and 0.3 mg/L C12. Chlorinated backwash water (~1 mg/L C12) considerably impaired the removals of acetate and formate, particularly if the chlorine in the backwash water was present as free C12.