BIODEGRADATION OF NOM - EFFECT OF NOM SOURCE AND OZONE DOSE

被引：0
|
作者：
GOEL, S
HOZALSKI, RM
BOUWER, EJ
机构：
来源：
JOURNAL AMERICAN WATER WORKS ASSOCIATION | 1995年 / 87卷 / 01期
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中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Batch degradation experiments were conducted to evaluate the extent of biodegradation of natural organic matter (NOM) as a function of ozone dosage. Four NOM sources that might be encountered in drinking water treatment were characterized and tested. The biodegradability of all sources was enhanced as the ozone dose was increased from 0 to 7.3 mg ozone/mg total organic carbon (TOC). Increased ozonation resulted in consistently improved TOC removals for NOM sources having a large fraction of high-molecular-weight organics. Greater biodegradation was observed for the unozonated sources with lower UV-absorption-to-TOC ratios and a larger fraction of low-molecular-weight organics.
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页码：90 / 105
页数：16
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