Abstract：The elimination of OCPs in micro-polluted water by enhanced coagulation was studied with poly aluminum chloride (PAC) and poly ferric sulfate (PFS) respectively. The effects of dosage of coagulant, pH value,initial turbidity, temperature and adding the modified attapulgite on the elimination efficiencies of OCPS were tested. Under the condition of pH5~6 and PAC 14mg/L, the removal rates of OCPS and turbidity reached 57.03~74.83% and 98.18%. The removal rates of OCPS and turbidity increased with the increasing in initial turbidity. Low temperature was conducive to the removal of OCPs.The removal rates of OCPS were enhanced to different extent when activated carbon and attapulgite were added respectively as the coagulation aids. The removal rate of OCPS reached 47.4%~78.2% and 22.8%~79.5%under the condition of modified attapulgite and activated carbon dosage of 5mg/L.Modified attapulgite is superior to activated carbon in low dosage. The removal rate of DDT is beter than BHC in the coagulation progress.The removal rates of OCPS treated with PFS were higher than that of with PAC.
李宗硕, 刘鹏宇, 常青, 赵莉, 高彩丽. 强化混凝消除微污染水中有机氯的研究[J]. 中国环境科学, 2013, 33(2): 251-256.
LI Zong-Shuo, LIU Peng-Yu, CHANG Qing, ZHAO Li, GAO Cai-Li. Study on the elimination of OCPS from micro-polluted water by enhanced coagulation. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(2): 251-256.
