Characterization and source of trihalomethane formation in the secondary effluent by sequencing batch reactors
Dissolved organic matter (DOM) may do harms to human beings.After disinfected by chlorine (amine), DOM can form disinfection by-products (DBPs) which can be mutagenic,teratogenic and carcinogenic.Characterization and source of trihalomethane precursors in the secondary effluent by sequencing batch reactors were investigated.CHCl3 was the primary DBPs.The results showed that the precursors of CHCl3 were mainly strongly hydrophobic DOM, while CHCl2Br and CHClBr2 were mainly formed from hydrophilic DOM.The effects of different powder media (activated carbon, zeolite) on removal of DOM were compared.The results showed that the dosing of powder media can promote the removal of DOM and the DBPs precursors.
Dissolved Organic Matter Disinfection Byproducts Precursors Trihalomethane
Chaojie Zhang Sibo Li Qian Chen Qi Zhou
College of Environmental Science and Engineering, Tongji University Shanghai 200092, PR China
国际会议
杭州
英文
323-326
2013-01-18（万方平台首次上网日期，不代表论文的发表时间）