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A systematic analytical artifact that significantly influences anaerobic digestion efficiency measurement

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Abstract:

Volatile solids reduction efficiency is widely used to assess the efficiency of anaerobic digestion of municipal wastewater sludge. When calculation methods that rely on the assumption that the nonvolatile or fixed solids are unaltered by anaerobic digestion have been used, it has been observed that higher volatile solids reduction efficiencies are typically obtained with primary sludge digestion than when waste biological sludges are digested. The research reported in this paper demonstrates that this difference in efficiency largely results from an artifact caused by the decomposition of ammonium bicarbonate during the total solids analysis.

Keywords: ANAEROBIC DIGESTION; EFFICIENCY; TOTAL SOLIDS ANALYSIS; VOLATILE SOLIDS REDUCTION

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/106143098X123345

Publication date: July 1, 1998

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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