Volume 7, Issue 27 And 28 (9-1998)
JGUMS 1998, 7(27 And 28): 55-62 |
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Farrokhi, Engineer M, Vaczi F. Air Stripping of Volatile Organic Compounds from Contaminated Water By Packed Tower Aeration. JGUMS 1998; 7 (27 and 28) :55-62
URL: http://journal.gums.ac.ir/article-1-1838-en.html
URL: http://journal.gums.ac.ir/article-1-1838-en.html
Abstract: (2516 Views)
ABSTRACT
Nowadays, removal of volatile organic compounds (VOCs) from drinking water specially from ground water resources, is considered as a very important act. Many reports have shown the contamination of water resources by these chemicals.
Two common method to reduce the concentration of VOCs are air stripping and GAC absorption. Of course, it is necessary to perform pilot study before using the air stripping as the method of choice for the removal of encountered contamination.
This paper described air stripping of VOCs and provided an overview of the feasibility of a packed column aeration designed in removing toluen from water. The packed column had 100cm height and 19 cm diameter.
Efficiency of this reactor in stripping of toluen has been studied under different conditions of temperature and air to water ratios.
The results of this study indicate that removal officiencies for toluen will increase over 90 percent if air/water ratio reaches 60 or more, but increasing air/watcr ratio over 70 have not significant effect on removal efficiency in this condition (height + of packing = 100cm). Camparison of toluen Henry law's constant with many of trihalometans (chloroform), chlorinated organic compounds (TCE), pesticides (Toxaphen), indicate that these compounds are treatable by this method (PTA).
Nowadays, removal of volatile organic compounds (VOCs) from drinking water specially from ground water resources, is considered as a very important act. Many reports have shown the contamination of water resources by these chemicals.
Two common method to reduce the concentration of VOCs are air stripping and GAC absorption. Of course, it is necessary to perform pilot study before using the air stripping as the method of choice for the removal of encountered contamination.
This paper described air stripping of VOCs and provided an overview of the feasibility of a packed column aeration designed in removing toluen from water. The packed column had 100cm height and 19 cm diameter.
Efficiency of this reactor in stripping of toluen has been studied under different conditions of temperature and air to water ratios.
The results of this study indicate that removal officiencies for toluen will increase over 90 percent if air/water ratio reaches 60 or more, but increasing air/watcr ratio over 70 have not significant effect on removal efficiency in this condition (height + of packing = 100cm). Camparison of toluen Henry law's constant with many of trihalometans (chloroform), chlorinated organic compounds (TCE), pesticides (Toxaphen), indicate that these compounds are treatable by this method (PTA).
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Received: 2019/03/6 | Accepted: 2019/03/6 | Published: 2019/03/6
Received: 2019/03/6 | Accepted: 2019/03/6 | Published: 2019/03/6
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