EFFECT OF SUNLIGHT ON COLIPHAGES IN AN OXIDATION POND

被引：16

作者：

OHGAKI, S ^{[1
]}

KETRATANAKUL, A ^{[1
]}

PRASERTSOM, U ^{[1
]}

机构：

[1] ASIAN INST TECHNOL,DIV ENVIRONM ENGN,BANGKOK 10501,THAILAND

来源：

WATER SCIENCE AND TECHNOLOGY | 1986年 / 18卷 / 10期

关键词：

Biochemistry - Solar radiation - VIRUSES - Bacteriophages;

D O I：

10.2166/wst.1986.0109

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Batch experiments showed the adsorption of coliphage to microbial particulates (mainly algae) occurred under aerobic conditions. The desorption of coliphage from the particulates was observed under anaerobic conditions. The adsorption-desorption process was reversible and was controlled by dissolved oxygen concentration. The same mechanism of adsorption-desorption was observed in the oxidation pond as well. During day-time, the concentration of coliphage decreased under high concentration of dissolved oxygen caused by photosynthesis. On the other hand, the concentration of coliphage increased after sunset because the dissolved oxygen concentration in the pond decreased to zero due to respiration of algae. The degree of removal of coliphage in the oxidation pond (design retention time 20 days) was 90% (1 log). Field measurement showed that coliphage could be inactivated by sunlight only near the water surface.

引用

页码：37 / 46

页数：10

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