Research on the Purification of Oil-polluted Sea Water by Carbonized Rice Hull
In recent years,marine oil pollution resulting from exploitation spills and accidents during oil transportation and use has affected the marine ecosystem safety,and oil polluted sea water remediation becomes a global problem Rice hull possesses a good property of absorption pollutants and it can be easily obtained from the abundant produce of rice all around the world.This experiment used carbonized rice hull (CRH) as absorbent,aiming to purify oil polluted sea water and explore optimal absorption conditions and effects.Six sets of experiments were done under the initial oil concentration of 1.35mg/L and CRH dosages of 0,6.67,13.33,20,26.67 and 33.33g/L,separately.Seventy percent of oil was removed under the ideal dosage of 13.33g/L,getting the minimum oil concentration of 0.39mg/L.Another six sets of experiments were also done under the absorption time of 0h,1 h,2h,3h,4h,5h and the same CRH dosage of 13.33mg/L.The ideal removals of COD (35.5%) and oil (71%) were obtained after 3 hours adsorption,while the highest COD removal gets to 47.5%.
absorption carbonized rice hull marine oil pollution oil polluted sea water
CUI Yubo ZHAO Meiyu YAO Xin CAO Xiaoyu
College of Resources and Environment, Dalian Nationalities University, Dalian 116600; College of Lig College of Resources and Environment, Dalian Nationalities University, Dalian 116600
国际会议
合肥
英文
294-297
2012-05-24（万方平台首次上网日期，不代表论文的发表时间）