Adsorption Properties of Waste Building Sludge for Environmental Protection
نویسندگان
چکیده
Waste building sludge (WBS) originating in the production of concrete prestressed poles (CSW) and technical stone (TSW) used original Fe-modified forms (CSWFe, TSWFe) was tested as an environmentally friendly cheap sorbent selected cations (Cd2+, Pb2+, Cs+) anions (AsO43?, PO43?, CrO42?) from water. The experiments were performed with 0.1 0.5 mmol·L?1 model solutions a batch manner at laboratory temperature. Adsorption data fitted Langmuir model. adsorption (Pb2+ Cd2+) ran almost quantitatively (>97%) on both CSW TSW. Cesium (Cs+) TSW reached 80%, while case CSW, it ineffective. modification FeII (CSWFe improved their selectivity to by up 70%. PO43? AsO43? (>98%) modified CSWFe TSWFe also initial CrO42? effectively adsorbed (?80%) only. affinity ions terms capacity consumption declined order follows: Pb2+ ? Cd2+ >> Cs+ for > anions.
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ژورنال
عنوان ژورنال: Minerals
سال: 2021
ISSN: ['2075-163X']
DOI: https://doi.org/10.3390/min11030309