Assimilable organic carbon in molecular weight fractions of natural organic matter

被引：114
|
作者：
Hem, LJ
Efraimsen, H
机构：
[1] Norwegian Water Technol Ctr AS, Aquateam, N-0504 Oslo, Norway
[2] Norwegian Inst Water Res, N-0411 Oslo, Norway
来源：
WATER RESEARCH | 2001年 / 35卷 / 04期
关键词：
NOM; humic; AOC; regrowth; biofilm formation potential; molecular weight;
D O I：
10.1016/S0043-1354(00)00354-7
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Assimilable organic carbon (AOC) in natural organic matter (NOM) has been measured in three Norwegian waters. The AOC measurement has been done on unfiltered and membrane-filtered (molecular weight (MW) cut-off of 1000 and 10,000) samples. While the colour in the waters is mainly related to the NOM with MW > 10,000, the AOC was mainly related to the NOM with MW < 1000. The fraction of the NOM with MW < 1000 corresponds to 16-38% of the total organic carbon (TOC), and 4-9% of the colour. This shows that a water treatment process removing the colour and a large part of the TOC in the water will not necessarily result in a reduction in the biofilm formation potential. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1106 / 1110
页数：5
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