摘要
利用活性污泥对含有碱减量印染废水的特征污染物进行吸附试验,污泥对特征污染物的吸附符合Langmuir 和Frundlich方程.污泥对特征污染物首先表现为很强的吸附作用,然后是吸附和生化的共同作用.由于厌氧污泥颗粒小、比表面积大,对特征污染物的吸附能力优于好氧污泥;同时,在微生物适宜的温度(25～35℃)和pH值条件下(pH=7～9),活性污泥的吸附能力最强.
In the operation by the activated sludge to absorb the characteristic pollutants of the alkali minimization and dyeing wastewater, absorption process is remarkable at first and then bio-absorption and bio-chemical process takes place. Under the experimentatal condition, the bio-absorption accords with Langmuir equation and Frundlich equation. Since the particle of anaerobic sludge is small and its specific surface is large, its adsorption capability is better than aerobic sludge. At the same time, under proper temperature of 25 -35℃ and pH of 7 -9, the adsorption capability of activated sludge is the best.
出处
《环境污染治理技术与设备》
CSCD
北大核心
2005年第9期41-46,共6页
Techniques and Equipment for Environmental Pollution Control
关键词
生物吸附
活性污泥
碱减量印染废水
bio-absorption
activated sludge
alkali-minimization and dyeing wastewater
