摘要
讨论了凹凸棒土的热处理改性方法,利用改性凹凸棒土对造纸黑液进行吸附脱色和降低COD性能研究,考察了改性温度,pH值、凹凸棒土投加量、吸附时间等因素的影响。结果表明:改性凹凸棒土对造纸黑液CODcr和色度有较好的去除能力,具有工业应用前景。
Papermaking wastewater is a kind of wastewater with high content of organic matters, high colority and it is hard to be degraded. The methods of modifying attapulgtie and treating papermaking wastewater are studied. The results show that the modified attapulite used in removes COD and color from papermaking wastewater by 83.4% and 95.6% respectively. This research provides valuable experimental data for modifying natural absorbents and applying them to treating papermaking wastewater.
出处
《贵州化工》
2005年第5期29-31,49,共4页
Guizhou Chemical Industry
基金
江苏科技攻关立项项目(编号:BE2004387)
关键词
凹凸棒土
造纸废水
吸附
Attapulgite
papermaking wastewater
adsorption
