Treatment of Dyeing Wastewater with Activated Carbon
- 化学化工－已发表论文 
[中文文摘]研究了活性炭对染料废水色度和COD的去除率,考察了温度、pH值和活性炭量对废水脱色率的影响.结果表明,活性炭量是脱色率的主要影响因素.室温下,初始浓度为250 mg/L时,处理酸性品红、碱性品红、活性黑B-133染料废水的活性炭最佳用量分别为0.8%、1.0%、2.0%,脱色率均在97%以上,COD去除率分别为63.28%、95.66%、84.62%.[英文文摘]Three kinds of dyeing wastewater (fuchsin acid, fuchsin basic and reactive black B-133) were treated with activated carbon (AC) to remove color and chemical oxygendem and ( COD). AC and dyeing wastewater were fed in the conical flask and oscilla ted by the oscillator for some time. Then them ixturew as centrifuged at 1 500 r/m in for 10 minutes, and the pellucid liquid was got tom easure its absorbency. The e ffects of the time, tem perature, pH value, AC dose on the color removal were investigated, and accordingly the optimal operating cond itions were determ ined. The experiment results showed that the equilibrium time of three kinds of dyeing wastewaterw as 3. 5, 6, 17 hrespectively. The color removal increased with increasing AC dose, then atta ined equilibr ium and rema ined constant thereafter. The optim al AC dose for fuchsin acid, fuchs in basic and reactive black B-133 dyeing w astew ater was 0. 8%, 1. 0% and 2. 0%. In general pH value did not have sign ifican t influence on the color removal.When the temperature increased, the color removal efficiency from the dyeing wastewater increased. Under the optimal conditions, the color rem oval of the three kinds of dyeing wastewater reached over 97%, and the COD rem oval reached 63. 28%, 95. 66% and 84. 62% respectively.