Characterization of Natural Organic Matter in Conventional Water Treatment Processes and Evaluation of THM Formation with Chlorine

被引：74

作者：

Ozdemir, Kadir ^{[1
]}

机构：

[1] Bulent Ecevit Univ, Dept Environm Engn, TR-67100 Incivez, Zonguldak, Turkey

来源：

SCIENTIFIC WORLD JOURNAL | 2014年

关键词：

DISINFECTION BY-PRODUCTS; DRINKING-WATER; TRIHALOMETHANE PRECURSORS; SEASONAL-VARIATIONS; SIZE DISTRIBUTION; MOLECULAR-SIZE;

D O I：

10.1155/2014/703173

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

This study investigates the fractions of natural organic matter (NOM) and trihalomethane (THM) formation after chlorination in samples of raw water and the outputs from ozonation, coagulation-flocculation, and conventional filtration treatment units. All the water samples are passed through various ultrafiltration (UF) membranes. UF membranes with different molecular size ranges based on apparent molecular weight (AMW), such as 1000, 3000, 10,000, and 30,000 Daltons (Da), are commonly used. The NOM fraction with AMW < 1000Da (1 K) is the dominant fraction within all the fractionated water samples. Its maximum percentage is 85.86% after the filtration process and the minimum percentage is 65.01% in raw water samples. The total THM (TTHM) yield coefficients range from 22.5 to 42 mu g-TTHM/mg-DOC in all fractionated samples, which is related to their specific ultraviolet Absorbance (SUVA) levels. As the molecular weight of the fractions decreased, the TTHM yield coefficients increased. The NOM fractions with AMW values less than 1K had lower SUVA values (<3 L/mg.m) for all treatment stages and also they had higher yield of TTHM per unit of DOC. The NOM fraction with AMW <1K for chlorinated raw water samples has the highest yield coefficient (42 mu g-TTHM/mg-DOC).

引用

页数：7

共 27 条

[1] ISOLATION OF HYDROPHILIC ORGANIC-ACIDS FROM WATER USING NONIONIC MACROPOROUS RESINS [J].

AIKEN, GR ;

MCKNIGHT, DM ;

THORN, KA ;

THURMAN, EM .

ORGANIC GEOCHEMISTRY, 1992, 18 (04) :567-573

[2]

[Anonymous], 2005, Standard Methods for the Examination of Water and Wastewater

[3]

[Anonymous], 1998, OFFICIAL J EUROPEA L

[4] Size distribution measurements of dissolved organic carbon in natural waters using ultrafiltration technique [J].

Cai, Y .

WATER RESEARCH, 1999, 33 (13) :3056-3060

[5] The effect of the molecular mass of the organic matter in raw water on the formation of disinfection by-products [J].

Chang, CY ;

Hsieh, YH ;

Lin, YM ;

Hu, PY ;

Liu, CC ;

Wang, KH .

JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA, 2001, 50 (01) :39-45

[6] Physical and chemical fractionation of dissolved organic matter and trihalomethane precursors: A review [J].

Chow, AT ;

Gao, S ;

Dahlgren, RA .

JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA, 2005, 54 (08) :475-507

[7] Isolation of humic and non-humic NOM fractions: Structural characterizations [J].

Croué J.-P. .

Environmental Monitoring and Assessment, 2004, 92 (1-3) :193-207

[8] Haloacetic acid and trihalomethane formation from the chlorination and bromination of aliphatic β-dicarbonyl acid model compounds [J].

Dickenson, Eric R. V. ;

Summers, R. Scott ;

Croue, Jean-Philippe ;

Gallard, Herve .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2008, 42 (09) :3226-3233

[9] Relationship of chlorine decay and THMs formation to NOM size [J].

Gang, DC ;

Clevenger, TE ;

Banerji, SK .

JOURNAL OF HAZARDOUS MATERIALS, 2003, 96 (01) :1-12

[10] The occurrence of trihalomethanes in the drinking water in Greece [J].

Golfinopoulos, SK .

CHEMOSPHERE, 2000, 41 (11) :1761-1767

← 1 2 3 →