关键词: 改性膨润土, 含油废水, 吸附

Abstract: Adsorption of oily-containing wastewater was studied by using modified Ca-bentonite of the Erzhou three products as adsorbing agent. The factors of adsorption were studied, such as the liquid-solid contact time、the dosage of sorbent、initial concentration of solution、emulsification machine content and so on. The changes of adosorbent were analyzed by infrared spectrpscopy. The result indicates that the adsorption of the 1831-bentonite is the best one,and the best craft of adsorption is that the time of 1 h,the dosage of 3 g/L,the solution concentration of 50 mg/L,the detergent volume of 0.1 ml/L,and its clearance rate is more than 95%.

Key words: Modified bentonite, Oily-containing wastewater, Absorption