Journal
ENVIRONMENTAL TECHNOLOGY
Volume 37, Issue 3, Pages 344-351Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09593330.2015.1069898
Keywords
activated sludge process; cross-validation; digital imaging; non-linear scaling; suspended solids
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One activated sludge process line was optically monitored in situ by a novel image analysis equipment. The results of the image analysis were studied to find out dependencies to the process variables of the wastewater treatment plant (WWTP) and to the quality of the treated wastewater. The quality parameter of the treated wastewater, suspended solids, was modelled using the image analysis results. The model can be used for evaluating the performance of the WWTP and for the better control for stable effluent quality. It was shown that the results of the online optical monitoring reveal useful information from the process and can be used in forecasting the quality of biologically treated wastewater. The optical monitoring method together with process measurements has an important role in keeping the process in stable operating conditions and avoiding environmental risks.
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