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Environ Monit Assess. 2011 Jul;178(1-4):73-83. doi: 10.1007/s10661-010-1673-3. Epub 2010 Sep 14.

Variation and removal efficiency of assimilable organic carbon (AOC) in an advanced water treatment system.

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Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung City 804, Taiwan.


This study investigates the microorganism growth indicator and determines the assimilable organic carbon (AOC) content at the Cheng-Ching Lake Advanced Water Treatment Plant (CCLAWTP) in Kaohsiung, Taiwan. Notably, AOC is associated with the biological stability within the water distribution network and has garnered considerable attention in the environmental engineering field in recent years. Water samples were collected from the effluent of each unit in CCLAWTP once monthly during December 2008 to November 2009. Items of water quality related to carbon concentration levels, including AOC, total organic carbon, dissolved organic carbon, UV(254), and specific ultraviolent absorbance were analyzed. Analytical results demonstrate that the average AOC concentration in raw water was 83.61 μg/L and reduced in freshwater was controlled at an average of 50 μg/L after an advanced treatment system of roughly 54% of AOC was removed in compliance with treatment plant standards. If AOC concentrations in freshwater can be reduced, study results can provide a direction for improving water treatment capabilities.

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