[Adsorption behavior and mechanisms in dual-solutes of Pb2+ and p-nitrophenol by organobentonites].
The sorption behavior for organobentonites to sorb organic pollutants from metal-organic pollutant systems were investigated. The results suggested that in organobentonite/Pb2+/p-nitrophenol solute systems, Pb2+ can slow the sorption velocity of organobentonite to adsorb p-nitrophenol from water. Pb2+ and p-nitriphenol exhibit a competitive effect. The competitive effects were relevant to ration of p-nitrophenol and Pb2+ and adsorption mechanisms of organobentonites. Bentonite modified with TMAB adsorbing contaminants primarily by an adsorption process, and the process exhibits a stonger competitive effect in multi-solute systems.
Department of Environmental Science, Zhejiang University, Hangzhou 310028, China.
Xue-you
XY
Shen
Ying-ying
YY
Lu
Shuang-shuang
SS
Wu
Jun-jie
JJ
Sun
Li-zhong
LZ
Zhu
D000327:Adsorption; D001546:Bentonite / Q000737:chemistry*; D007854:Lead / Q000737:chemistry*; D009596:Nitrophenols / Q000737:chemistry*; D009930:Organic Chemicals / Q000737:chemistry; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis; D014876:Water Pollution / Q000517:prevention & control*
D009596:Nitrophenols; D009930:Organic Chemicals; D014874:Water Pollutants, Chemical; D001546:Bentonite; D007854:Lead