DBP alteration from NOM and model compounds after UV/persulfate treatment with post chlorination

Z Hua, X Kong, S Hou, S Zou, X Xu, H Huang, J Fang - Water research, 2019 - Elsevier
The UV/persulfate process is an effective advanced oxidation process (AOP) for the
abatement of a variety of micropollutants via producing sulfate radicals (SO 4•-). However …

Impact of UV/persulfate pretreatment on the formation of disinfection byproducts during subsequent chlorination of natural organic matter

P Xie, J Ma, W Liu, J Zou, S Yue - Chemical Engineering Journal, 2015 - Elsevier
Abstract Ultraviolet/persulfate (UV/PS) has been widely used to generate sulfate radicals
(SO 4 radical dot−) in degrading organic pollutants. However, its impact on chlorinated …

Experimental and simulation investigations of UV/persulfate treatment in presence of bromide: Effects on degradation kinetics, formation of brominated disinfection …

Z Wang, N An, Y Shao, N Gao, E Du, B Xu - Separation and Purification …, 2020 - Elsevier
Abstract Bromide (Br−), which is omnipresent in water bodies, can not only affect the
degradation kinetics of target pollutants but may also form undesired byproducts (such as …

Natural organic matter exposed to sulfate radicals increases its potential to form halogenated disinfection byproducts

J Lu, W Dong, Y Ji, D Kong… - Environmental science & …, 2016 - ACS Publications
Sulfate radical-based advanced oxidation processes (SR-AOPs) are considered as viable
technologies to degrade a variety of recalcitrant organic pollutants. This study demonstrates …

Micropollutant removal and disinfection byproduct control by sequential peroxymonosulfate-UV treatment in water: A case study with sulfamethoxazole

TY Zhang, YS Lu, ZN Luo, WJ Sun, B Xu, CY Hu… - Journal of …, 2022 - Elsevier
Abstract UV/peroxymonosulfate (UV/PMS) advanced oxidation process has attracted
significant attention for removal of micropollutants in water. However, during practical water …

Insights into the effects of bromide at fresh water levels on the radical chemistry in the UV/peroxydisulfate process

A Wang, Z Hua, Z Wu, C Chen, S Hou, B Huang… - Water Research, 2021 - Elsevier
Bromide (Br−) is a typical scavenger to sulfate radical (SO 4•−) and hydroxyl radical (HO•),
which simultaneously forms secondary reactive bromine species (RBS) such as Br• and Br …

Comparison of UV/H2O2, UV/PMS, and UV/PDS in Destruction of Different Reactivity Compounds and Formation of Bromate and Chlorate

YH Guan, J Chen, LJ Chen, XX Jiang, Q Fu - Frontiers in chemistry, 2020 - frontiersin.org
In this study, we compared the decontamination kinetics of various target compounds and
the oxidation by-products (bromate and chlorate) of PMS, PDS, and H2O2 under UV …

Treatment of bromate in UV/sulfite autoxidation process enhances formation of dibromoacetonitrile during chlorination

H Chen, T Lin, P Wang, X Zhang, F Jiang, W Liu - Water Research, 2022 - Elsevier
The integration of UV/sulfite autoxidation process (USAP, ie, UV activation of sulfite in the
presence of 5∼ 10 mg/LO 2) into conventional water to degrade micropollutants rises …

Kinetics and transformations of diverse dissolved organic matter fractions with sulfate radicals

X Lei, Y Lei, J Guan, P Westerhoff… - Environmental Science & …, 2022 - ACS Publications
Dissolved organic matter (DOM) scavenges sulfate radicals (SO4•–), and SO4•–-induced
DOM transformations influence disinfection byproduct (DBP) formation when chlorination …

Formation of chlorination by-products in waters with low SUVA—correlations with SUVA and differential UV spectroscopy

N Ates, M Kitis, U Yetis - Water research, 2007 - Elsevier
The formation of THMs and HAAs after chlorination of bulk water fractions of low-SUVA
(specific UV absorbance) surface waters was investigated, and the applicability of SUVA …