Impact of persulfate and ultraviolet light activated persulfate pre-oxidation on the formation of trihalomethanes, haloacetonitriles and halonitromethanes from the chlor(am)ination of three antibiotic chloramphenicols

Water Research
Wenhai ChuNai-Yun Gao

Abstract

Persulfate oxidation processes, with and without activation using ultraviolet light (respectively UV/PS and PS) have the potential to degrade anthropogenic chemicals in water. However, little is known about the impact of PS or UV/PS pre-oxidation on downstream formation of disinfection by-products (DBPs). In this study the three antibiotic chloramphenicols (chloramphenicol and two of its analogues [thiamphenicol and florfenicol], referred to collectively as CAPs), which frequently occur in wastewater-impacted source waters used by drinking water treatment plants, were selected as model antibiotic compounds. The formation of carbonaceous and nitrogenous disinfection by-products, including halomethanes, haloacetonitriles and halonitromethanes, during chlorination and chloramination preceded by PS and UV/PS was investigated. No significant concentrations of haloacetonitriles and halonitromethanes were detected during chlorination. During chloramination chloramphenicol formed a considerable amount of dichloronitromethane (e.g., 3.44 ± 0.33% mol/mol at NH2Cl dose = 1 mM) and trichloronitromethane (e.g., 0.79 ± 0.07% mol/mol at NH2Cl dose = 1 mM), compared with THM and HAN formation. PS pre-oxidation achieved a statistically signific...Continue Reading

References

Apr 1, 1984·Journal of Clinical Pharmacology·W G KramerL K Pickering
Mar 7, 2002·Environmental Science & Technology·William A Mitch, David L Sedlak
Dec 22, 2006·Environmental Science & Technology·Stuart W KrasnerAlfred D Thruston
Feb 22, 2007·Environmental Science & Technology·Mark G MuellnerMichael J Plewa
Jun 28, 2007·Environmental Science & Technology·Sung Hee Joo, William A Mitch
Jun 21, 2008·Environment International·Amir SapkotaRobert Lawrence
Jan 14, 2009·The Science of the Total Environment·A J WatkinsonS D Costanzo
Feb 28, 2009·Environmental Science & Technology·Mark J BenottiShane A Snyder
Jul 8, 2009·Applied and Environmental Microbiology·Chuanwu XiJerome Nriagu
Feb 16, 2010·Chemosphere·Hocheol SongTanju Karanfil
Apr 20, 2010·Environmental Science & Technology·Wen-Hai ChuStuart W Krasner
Apr 27, 2010·Environmental Science & Technology·Maria G AntoniouDionysios D Dionysiou
Dec 3, 2010·Water Research·Maria Huerta-FontelaFrancesc Ventura
Jun 15, 2011·Analytical Chemistry·Susan D Richardson, Thomas A Ternes
Dec 14, 2011·Journal of Computational Chemistry·Tian Lu, Feiwu Chen
Dec 27, 2012·The Science of the Total Environment·Li-Jun ZhouChang-Gui Pan
Mar 30, 2013·The Science of the Total Environment·Li-Jun ZhouHua-Jie Lai
Nov 7, 2013·Environmental Technology·Mohammad ShokriMohammad A Behnajady
Jul 2, 2014·Journal of Hazardous Materials·Tom BondMichael R Templeton
Aug 27, 2014·Journal of Hazardous Materials·Cristina Postigo, Susan D Richardson

❮ Previous
Next ❯

Related Concepts

Related Feeds

Antifungals (ASM)

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.

Antifungals

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.