Evaluation of an Anaerobic Granule Biosensor for Upset Early Warning Detection

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Abstract:

The objective of this study was to evaluate the use of anaerobic granules in an on-line device to detect toxic conditions in the influent to a biological wastewater treatment system. In this study a porous pot reactor was used to simulate the activated sludge stage of a wastewater treatment plant, and an anaerobic granule biosensor (AGB) was evaluated as an upset early warning device (UEWD). In the first group of toxic loading tests, the prepared cupric chloride solutions were separately injected into both the porous pot and AGB systems at six different concentrations, and phenol solutions were used at three different concentrations in the second group of tests. The results showed the porous pot chemical oxygen demand (COD) and ammonia-N removal efficiency decreased dramatically in response to the addition of Cu2+ and phenol. The most sensitive parameter was the oxidation-reduction potential (ORP) in the AGB, which suggests that the AGB could potentially be used as an on-line UEWD.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864708788804603

Publication date: January 1, 2008

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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