Increased chloroform production from model components of aquatic humus and mixtures of chlorine dioxide/chlorine

Lin, Sechoing; Liukkonen, Robert J.; Thom, Rebecca E.; Bastian, John G.; Lukasewycz, Marta T.; Carlson, Robert M. K.

doi:10.1021/es00130a007

Cited by 9 publications

(1 citation statement)

References 17 publications

(43 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Organic chlorinated byproducts with masses of 84, 150, and 178 Da were detected in the NaOCl/resorcinol solution (Figures S8 and S9). Structures with masses of 82.5, 150.5, and 178.9 Da were proposed as possible products for the reaction between resorcinol and HOCl/OCl – (Figure S10 and Table S2) and were based on results from the literature. − Products include a chlorinated phenolic compound (mass = 178.9 Da) and chlorinated aliphatic compounds (masses = 150.5 and 82.5 Da). The products for direct reaction between resorcinol and HOCl/OCl – were distinctly different from those for electrochemical oxidation experiments (Figure ), indicating that oxidation of resorcinol in electrochemical experiments was not solely attributed to reactions with HOCl/OCl – .…”

Section: Resultsmentioning

confidence: 99%

Chlorinated Byproduct Formation during the Electrochemical Advanced Oxidation Process at Magnéli Phase Ti₄O₇ Electrodes

Lin

Bulman

Remucal

et al. 2020

Environ. Sci. Technol.

View full text Add to dashboard Cite

This research investigated chlorinated byproduct formation at Ti4O7 anodes. Resorcinol was used as a model organic compound representative of reactive phenolic groups in natural organic matter and industrial phenolic contaminants and was oxidized in the presence of NaCl (05 mM). Resorcinol mineralization was >68% in the presence and absence of NaCl at 3.1 V/SHE (residence time = 13 s). Results indicated that ∼4.3% of the initial chloride was converted to inorganic byproducts (free Cl2, ClO2 –, ClO3 –) in the absence of resorcinol, and this value decreased to <0.8% in the presence of resorcinol. Perchlorate formation rates from chlorate oxidation were 115371 mol m–2 h–1, approximately two orders of magnitude lower than reported values for boron-doped diamond anodes. Liquid chromatography–mass spectroscopy detected two chlorinated organic products. Multichlorinated alcohol compounds (C3H2Cl4O and C3H4Cl4O) at 2.5 V/SHE and a monochlorinated phenolic compound (C8H7O4Cl) at 3.1 V/SHE were proposed as possible structures. Density functional theory calculations estimated that the proposed alcohol products were resistant to direct oxidation at 2.5 V/SHE, and the C8H7O4Cl compound was likely a transient intermediate. Chlorinated byproducts should be carefully monitored during electrochemical advanced oxidation processes, and multibarrier treatment approaches are likely necessary to prevent halogenated byproducts in the treated water.

show abstract

Section: Resultsmentioning

confidence: 99%

Chlorinated Byproduct Formation during the Electrochemical Advanced Oxidation Process at Magnéli Phase Ti₄O₇ Electrodes

Lin

Bulman

Remucal

et al. 2020

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

A Review of Chlorine Dioxide in Drinking Water Treatment

Aieta¹,

Berg²

1986

Journal AWWA

254

116

View full text Add to dashboard Cite

There is increased interest in using chlorine dioxide to treat drinking water for trihalomethane control, taste and odor control, oxidation of iron and manganese, and oxidant‐enhanced coagulation‐sedimentation. This article reviews the physical, chemical, and biological properties of chlorine dioxide as they relate to water treatment. The generation reactions as well as the reactions likely to occur in treated water are presented. In addition, the biological properties of chlorine dioxide are reviewed and compared with other common disinfectants.

show abstract

Reactions of chlorine and chlorine dioxide with resorcinol in aqueous solution and adsorbed on granular activated carbon

1987

View full text Add to dashboard Cite

Increased chloroform production from model components of aquatic humus and mixtures of chlorine dioxide/chlorine

Cited by 9 publications

References 17 publications

Chlorinated Byproduct Formation during the Electrochemical Advanced Oxidation Process at Magnéli Phase Ti₄O₇ Electrodes

Chlorinated Byproduct Formation during the Electrochemical Advanced Oxidation Process at Magnéli Phase Ti₄O₇ Electrodes

A Review of Chlorine Dioxide in Drinking Water Treatment

Reactions of chlorine and chlorine dioxide with resorcinol in aqueous solution and adsorbed on granular activated carbon

Contact Info

Product

Resources

About

Increased chloroform production from model components of aquatic humus and mixtures of chlorine dioxide/chlorine

Cited by 9 publications

References 17 publications

Chlorinated Byproduct Formation during the Electrochemical Advanced Oxidation Process at Magnéli Phase Ti4O7 Electrodes

Chlorinated Byproduct Formation during the Electrochemical Advanced Oxidation Process at Magnéli Phase Ti4O7 Electrodes

A Review of Chlorine Dioxide in Drinking Water Treatment

Reactions of chlorine and chlorine dioxide with resorcinol in aqueous solution and adsorbed on granular activated carbon

Contact Info

Product

Resources

About

Chlorinated Byproduct Formation during the Electrochemical Advanced Oxidation Process at Magnéli Phase Ti₄O₇ Electrodes

Chlorinated Byproduct Formation during the Electrochemical Advanced Oxidation Process at Magnéli Phase Ti₄O₇ Electrodes