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The methylene blue dye wastewater was treated by various amount of hydroxyl Fe modified bentonite, then, the dye was oxidized by the bentonite with the Fe catalysis. As a result the modified bentonite was regenerated and could be recycled in adsorption. Ultrasound and hydrogen peroxide have synergistic action on degradation of methylene blue for OH-Fe-bentonites' regeneration. The adsorption of dye...
Organobentonite is suggested as potential super-sorbents for the removal of organic pollutants such as dyes from wastewater. Limited by the high operation cost and the complicate process of its synthesis, however, organobentonite is not widely applied in wastewater treatment. Based on the truth that organobentonite was normally synthesized by cationic surfactants and bentonite with cationic exchanging,...
A novel technology of wastewater treatment was proposed based on simultaneously synthesis of organobentonite and removal of organic pollutants such as phenols from water in one-step, which resulted that both surfactants and organic pollutants were removed from water by bentonite. The effects of contact time, pH and inorganic salt on the removal of phenols were investigated. Kinetic results showed...
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