Experimental Study of Organic Pollutants in Waste Water from the Coking Plant Adsorbed by Organobentonite

摘要

The adsorption of organic pollutants from the waste water in the Beijing Shougang Coking Plant has been studied using bentonite modified by cetyl trimethyl ammonium bromide (CTMAB) in this experiment. The factors that affected the adsorbing capacity are amount of modifier, amount of sorbent, reaction time and grain size of organobentonite through a series of dynamic experiments. The experimental results show that under the conditions: the grain size of organobentonite 150μm, amount of organobentonite 10g·L~(-1), modifier 5g and the adsorption time 60min, the removal efficiency of group components and polycyclic aromatic hydrocarbons (PAHs) from the waste water can reach 90% above.