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Removal of dissolved organic carbon by processes of coagulation
Date issued
2013
Author(s)
Masu, Smaranda
Abstract
The removal of natural organic matter is presented in this paper in conventional terms:
turbidity, chemical organic demand (COD), total organic carbon (TOC), colour (A436); and in
unconventional terms: dissolved organic carbon (DOC), UV absorbance at λ=254 nm (A254), at
λ=365 nm (A365) and specific UV absorbance (SUVA), expressed as the ratio between
absorbance A254 and dissolved organic carbon (DOC), from water in concordance with the
coagulation process. The use of the enhanced doses of coagulant improved the efficiency of
organic matter removal from water samples. The results for DOC and TOC indicated an
efficiency removal of 31.5–51.0% and for A254–A365 the efficiency removal ranged between
17.4–76.4%.
turbidity, chemical organic demand (COD), total organic carbon (TOC), colour (A436); and in
unconventional terms: dissolved organic carbon (DOC), UV absorbance at λ=254 nm (A254), at
λ=365 nm (A365) and specific UV absorbance (SUVA), expressed as the ratio between
absorbance A254 and dissolved organic carbon (DOC), from water in concordance with the
coagulation process. The use of the enhanced doses of coagulant improved the efficiency of
organic matter removal from water samples. The results for DOC and TOC indicated an
efficiency removal of 31.5–51.0% and for A254–A365 the efficiency removal ranged between
17.4–76.4%.
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