Effects and model of alkaline waste activated sludge treatment
Effects and model of alkaline waste activated sludge treatment
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DOI：
10.1016/j.biortech.2007.09.019
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发表时间：
2008-07-01
影响因子：
11.4
通讯作者：
Nie, Yongfeng
中科院分区：
文献类型：
--
作者：
Li, Huan;Jin, Yiying;Nie, Yongfeng
由于缺乏在环境温度下高剂量碱性污泥处理的相关信息，对碱性污泥处理进行了研究，以了解不同剂量（0 - 0.5 mol/L）的氢氧化钠（NaOH）和氢氧化钙[Ca(OH)₂]在0 - 40℃下的处理效果。结果表明，NaOH比Ca(OH)₂更适合用于污泥分解。对于NaOH处理，最有效剂量约为0.05 mol/L（0.16 g/g干固体），在24小时的处理过程中，前30分钟内有机物的溶解率达到60 - 71%。该过程可用一个变幂函数模型来描述，反应速率常数与温度之间的关系符合阿伦尼乌斯方程。低剂量NaOH处理（
Due to lack of information about alkaline sludge treatment with high dose at ambient temperature, alkaline sludge treatment was investigated to know the effects of different doses (0-0.5 mol/L) of sodium hydroxide (NaOH) and calcium hydroxide [Ca(OH)(2)] at 0-40 degrees C. Results showed that NaOH was more suitable than Ca(OH)(2) for sludge disintegration. For NaOH treatment, most efficient dose was about 0.05 mol/L (0.16 g/g dry solid), and 60-71% solubilization of organic matters was achieved in first 30 min during its treatment of 24 h. The process is described by a transmutative power function model, and relation between reaction rate constant and temperature are according with Arrhenius equation. Low dose NaOH treatment (