摘要
该文讨论了凹凸棒土的改性方法，利用改性凹凸棒土对染化废水进行了吸附脱色性能研究，考察了改性方法，ｐＨ值、凹凸棒土投加量、吸附时间等因素的影响。结果表明：改性凹凸棒土对染化废水ＣＯＤｃｒ和色度有较好的的去除能力，ＣＯＤｃｒ去除率可达８０％，脱色率达９５％以上，该吸附剂的静态吸附行为符合Ｆｒｅ－ｕｎｄｌｉｃｈ吸附等温式。本研究对凹凸棒土的应用开发提供了有价值的实验数据。
The methods of modifying attapulgite and treating dyeing wastewater are studied in this paper.The results show that the modified attapulgite used in 1% removes COD and color from dyeing wastewater by 80% and 95% respectively.The process of adsorption can be stated by an expression similar to Freundlich model.This research provides valuable experimental data for modifying natural absorbents and applying them to treating dyeing wastewater.
出处
《南京理工大学学报》
EI
CAS
CSCD
1998年第3期240-243,共4页
Journal of Nanjing University of Science and Technology
关键词
吸收剂
改性
废水处理
凹凸棒土
染料
absorbents,modification,waste water treatment
attapulgite
