RESIN CONCENTRATION OF BY-PRODUCTS FROM CHLORINATION OF AQUATIC HUMIC SUBSTANCES

被引:14
|
作者
LECLOIREC, P [1 ]
LELACHEUR, RM [1 ]
JOHNSON, JD [1 ]
CHRISTMAN, RF [1 ]
机构
[1] UNIV N CAROLINA,SCH PUBL HLTH,DEPT ENVIRONM SCI & ENGN,CHAPEL HILL,NC 27514
基金
美国国家科学基金会;
关键词
chloration; COT; humic substances; resin; résine; substances humiques; TOC chlorination; TOX; XAD; XOT;
D O I
10.1016/0043-1354(90)90179-A
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A method to extract and concentrate the by-products from chlorination of an isolated aquatic humic substance has been investigated. Particular attention has been given to maximization of the recovery of compounds characterized as total organic halogens (TOX). After evaluation of different XAD resins with model compounds, the method chosen involved sequential adsorption of an acidified aqueous sample onto XAD-8 and XAD-4 resins, and product recovery first with base elution and then soxhlet ether extraction of the resins. This method yielded a recovery of 72% of total organic carbon (TOC) and 97% of TOX. © 1990.
引用
收藏
页码:1151 / 1155
页数:5
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