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Designing a Cost‐Efficient Air‐Stripping Process
Author(s) -
Nirmalakhandan N.,
Lee Y.H.,
Speece R.E.
Publication year - 1987
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1987.tb02784.x
Subject(s) - air stripping , stripping (fiber) , operating cost , capital cost , environmental science , mass transfer , water treatment , operational costs , environmental engineering , process engineering , waste management , chemistry , materials science , engineering , chromatography , operations management , electrical engineering , wastewater , composite material
The air stripping of volatile organic chemicals (VOCs) from water was optimized by taking into account both capital and operating costs. By using Onda's correlation for mass transfer coefficient and computer simulations, optimal water loading rates and air‐to‐water ratios were established for five representative VOCs. The overall treatment cost appeared to be relatively insensitive to changes in the operating variables in the vicinity of the optimum region but increased rapidly as the conditions deviated from the optimum region. It was also observed that the overall treatment cost was very sensitive to capital cost but not significantly affected by power costs. The treatment cost dropped almost linearly as temperature increased.