2,4- 二 硝 基 酚 对 活 性 污 泥 生 长 动 力 学 的 影 响讨 论摘 要:通过序批式试验讨论了2,4-二硝基酚(dNP) 对活性污泥生长动力学的影响
当2,4-二硝基酚浓度小于10 mg/l 时,污泥产率和相对比生长速率(/0) 明显下降,但相对基质比降解速率(q/q0) 并没有明显降低,抑制系数分析表明,此时1/Ki=0
05,即对活性污泥基本没有毒害;而当投加量大于10 mg/l 时,相对比生长速率和相对基质比降解速率均有明显下降,此时抑制系数1/Ki=0
14,毒害作用增强
关键词:2,4-二硝基酚;生长动力学;产率;抑制性Effect of 2,4-Dinitrophenol on the Growth Kinetics of Activated Sludge Abstract:The effect of 2,4-dinitrophenol(dNP) on the batch growth kinetics of activated sludge was investigated in this study
The yield and the relative specific growth rate(/0) of activated sludge decreased significantly at dNP concentrations lower than 10 mg/l, while the relative specific COD removal rate(q/q0) was not affected severely, and the reciprocal of Ki(inhibition coefficient) was 0
When dNP levels were higher than 10 mg/l, the r