Effect of inorganic constituents on chemical oxygen demand-II. Organic carbon to halogen ratios determine halogen interference

Shimshon Belkin; Asher Brenner; Aharon Abeliovich

doi:10.1016/0043-1354(92)90157-Y

Effect of inorganic constituents on chemical oxygen demand-II. Organic carbon to halogen ratios determine halogen interference

Shimshon Belkin, Asher Brenner, Aharon Abeliovich

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15 Scopus citations

Abstract

The dependency of free halogen ion oxidation in chemical oxygen demand (COD) assays on the organic content of the sample was investigated. Halogen interference was reduced at increasing glucose or potassium hydrogen phthalate concentration; in each case, a threshold ratio of organic matter to halogen existed, above which halogen oxidation was masked. This ratio depended upon the presence of mercuric sulfate in the case of chloride but not of bromide. It was also affected by the ease of oxidation of both the organic molecule and the halogen ion, as well as by their actual COD. Thus, bromide oxidation was more difficult to prevent than that of chloride, and phthalate exerted a stronger masking effect than glucose.

Original language	English
Pages (from-to)	1583-1588
Number of pages	6
Journal	Water Research
Volume	26
Issue number	12
DOIs	https://doi.org/10.1016/0043-1354(92)90157-Y
State	Published - 1 Jan 1992

Keywords

bromide
chemical oxygen demand (COD)
chloride
halogen interference
industrial wastewater

ASJC Scopus subject areas

Water Science and Technology
Ecological Modeling
Pollution
Waste Management and Disposal
Environmental Engineering
Civil and Structural Engineering

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10.1016/0043-1354(92)90157-Y

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title = "Effect of inorganic constituents on chemical oxygen demand-II. Organic carbon to halogen ratios determine halogen interference",

abstract = "The dependency of free halogen ion oxidation in chemical oxygen demand (COD) assays on the organic content of the sample was investigated. Halogen interference was reduced at increasing glucose or potassium hydrogen phthalate concentration; in each case, a threshold ratio of organic matter to halogen existed, above which halogen oxidation was masked. This ratio depended upon the presence of mercuric sulfate in the case of chloride but not of bromide. It was also affected by the ease of oxidation of both the organic molecule and the halogen ion, as well as by their actual COD. Thus, bromide oxidation was more difficult to prevent than that of chloride, and phthalate exerted a stronger masking effect than glucose.",

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author = "Shimshon Belkin and Asher Brenner and Aharon Abeliovich",

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T1 - Effect of inorganic constituents on chemical oxygen demand-II. Organic carbon to halogen ratios determine halogen interference

AU - Belkin, Shimshon

AU - Brenner, Asher

AU - Abeliovich, Aharon

PY - 1992/1/1

Y1 - 1992/1/1

N2 - The dependency of free halogen ion oxidation in chemical oxygen demand (COD) assays on the organic content of the sample was investigated. Halogen interference was reduced at increasing glucose or potassium hydrogen phthalate concentration; in each case, a threshold ratio of organic matter to halogen existed, above which halogen oxidation was masked. This ratio depended upon the presence of mercuric sulfate in the case of chloride but not of bromide. It was also affected by the ease of oxidation of both the organic molecule and the halogen ion, as well as by their actual COD. Thus, bromide oxidation was more difficult to prevent than that of chloride, and phthalate exerted a stronger masking effect than glucose.

AB - The dependency of free halogen ion oxidation in chemical oxygen demand (COD) assays on the organic content of the sample was investigated. Halogen interference was reduced at increasing glucose or potassium hydrogen phthalate concentration; in each case, a threshold ratio of organic matter to halogen existed, above which halogen oxidation was masked. This ratio depended upon the presence of mercuric sulfate in the case of chloride but not of bromide. It was also affected by the ease of oxidation of both the organic molecule and the halogen ion, as well as by their actual COD. Thus, bromide oxidation was more difficult to prevent than that of chloride, and phthalate exerted a stronger masking effect than glucose.

KW - bromide

KW - chemical oxygen demand (COD)

KW - chloride

KW - halogen interference

KW - industrial wastewater

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SN - 0043-1354

VL - 26

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EP - 1588

JO - Water Research

JF - Water Research

IS - 12

ER -

Effect of inorganic constituents on chemical oxygen demand-II. Organic carbon to halogen ratios determine halogen interference

Abstract

Keywords

ASJC Scopus subject areas

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