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Investigation of disinfection byproducts formation in ferrate(VI) pre-oxidation of NOM and its model compounds followed by chlorination.
J Hazard Mater. 2015 Jul 15; 292:197-204.JH

Abstract

This study investigated the effect of disinfection by-products (DBPs) formation in pre-oxidation with ferrate(VI) (Fe(VI)O4(2-), Fe(VI)) and relationship between subsequent chlorination of Suwannee river natural organic matter (SRNOM) and eight model compounds containing moieties of alcohol, aldehyde, amines, amino acids, and phenol. The DBPs studied were trihalomethanes (THMs), chloral hydrate (CH), haloacetonitriles (HANs), and trichloronitromethane (TCNM). When the interaction of Fe(VI) and SRNOM was independently examined at pH 7.0, a decrease was seen in dissolved organic carbon and in the hydrophobic and hydrophilic fractions of NOM. With the model compounds, the results showed that Fe(VI) pre-oxidation and subsequent chlorination decreased the formation of THMs with most of the compounds except amines and glycine. The effect of Fe(VI) preoxidation on CH and HANs formation from model compounds varied and was dependent on ferrate doses. Fe(VI) pre-oxidation significantly enhanced TCNM formation, compared to without pre-oxidation, from subsequent chlorination of methylamine, dimethylamine and glycine and the formation increased with increasing doses of ferrate. Correlations of DBPs formation between SRNOM and model compounds were sought to identify the moieties involved in influencing the formation of DBPs. The generation of DBPs is described using the parent molecules and the kinetics and reaction products of Fe(VI)/chlorine oxidation.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Gan W
SYSU-HKUST Research Center for Innovative Environmental Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
Sharma VK
Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, 1266 TAMU, College Station, TX 77843, USA.
Zhang X
SYSU-HKUST Research Center for Innovative Environmental Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
Yang L
SYSU-HKUST Research Center for Innovative Environmental Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
Yang X
SYSU-HKUST Research Center for Innovative Environmental Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China; Research Institute of Sun Yat-sen University in Shenzhen, Shenzhen, China. Electronic address: yangx36@mail.sysu.edu.cn.

MeSH

DisinfectantsHalogenationIronModels, ChemicalOxidation-Reduction

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25814185

Citation

Gan, Wenhui, et al. "Investigation of Disinfection Byproducts Formation in ferrate(VI) Pre-oxidation of NOM and Its Model Compounds Followed By Chlorination." Journal of Hazardous Materials, vol. 292, 2015, pp. 197-204.
Gan W, Sharma VK, Zhang X, et al. Investigation of disinfection byproducts formation in ferrate(VI) pre-oxidation of NOM and its model compounds followed by chlorination. J Hazard Mater. 2015;292:197-204.
Gan, W., Sharma, V. K., Zhang, X., Yang, L., & Yang, X. (2015). Investigation of disinfection byproducts formation in ferrate(VI) pre-oxidation of NOM and its model compounds followed by chlorination. Journal of Hazardous Materials, 292, 197-204. https://doi.org/10.1016/j.jhazmat.2015.02.037
Gan W, et al. Investigation of Disinfection Byproducts Formation in ferrate(VI) Pre-oxidation of NOM and Its Model Compounds Followed By Chlorination. J Hazard Mater. 2015 Jul 15;292:197-204. PubMed PMID: 25814185.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Investigation of disinfection byproducts formation in ferrate(VI) pre-oxidation of NOM and its model compounds followed by chlorination. AU - Gan,Wenhui, AU - Sharma,Virender K, AU - Zhang,Xing, AU - Yang,La, AU - Yang,Xin, Y1 - 2015/03/09/ PY - 2014/11/02/received PY - 2015/02/09/revised PY - 2015/02/13/accepted PY - 2015/3/28/entrez PY - 2015/3/31/pubmed PY - 2016/1/9/medline KW - Chlorine KW - Disinfection by-products KW - Ferrate KW - Kinetics KW - Organic matter SP - 197 EP - 204 JF - Journal of hazardous materials JO - J Hazard Mater VL - 292 N2 - This study investigated the effect of disinfection by-products (DBPs) formation in pre-oxidation with ferrate(VI) (Fe(VI)O4(2-), Fe(VI)) and relationship between subsequent chlorination of Suwannee river natural organic matter (SRNOM) and eight model compounds containing moieties of alcohol, aldehyde, amines, amino acids, and phenol. The DBPs studied were trihalomethanes (THMs), chloral hydrate (CH), haloacetonitriles (HANs), and trichloronitromethane (TCNM). When the interaction of Fe(VI) and SRNOM was independently examined at pH 7.0, a decrease was seen in dissolved organic carbon and in the hydrophobic and hydrophilic fractions of NOM. With the model compounds, the results showed that Fe(VI) pre-oxidation and subsequent chlorination decreased the formation of THMs with most of the compounds except amines and glycine. The effect of Fe(VI) preoxidation on CH and HANs formation from model compounds varied and was dependent on ferrate doses. Fe(VI) pre-oxidation significantly enhanced TCNM formation, compared to without pre-oxidation, from subsequent chlorination of methylamine, dimethylamine and glycine and the formation increased with increasing doses of ferrate. Correlations of DBPs formation between SRNOM and model compounds were sought to identify the moieties involved in influencing the formation of DBPs. The generation of DBPs is described using the parent molecules and the kinetics and reaction products of Fe(VI)/chlorine oxidation. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/25814185/Investigation_of_disinfection_byproducts_formation_in_ferrate_VI__pre_oxidation_of_NOM_and_its_model_compounds_followed_by_chlorination_ DB - PRIME DP - Unbound Medicine ER -