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- W58453167 abstract "Four, unmixed, bench-scale digesters were operated for 89 days on a 15-day solids retention time. The seed and the feed for digester stabilization were obtained from a combined domestic and industrial wastewater treatment plant. After stabilization of the units, an industrial wastewater from a drum recycling center was incorporated into the feed of three of the four digesters. The total solids in digesters 3, 4 and 5 were increased by 10, 30 and 50%, respectively, by addition of the industrial waste. Digester 4, with no industrial loadings served as the control. The industrial portion consisted of a wastewater from the drum cleaning operation and a variety of wastes resulting from the residues in the drums. These residuals contributed to the variability of the wastewater. During the third retention time, gas volume dropped markedly, first in digester 5 and then in digester 4. Coinciding with the faltering gas volume was a dramatic rise in volatile acids and supernatant lead concentrations and a decline in volatile solids and COD reduction and pH. Digester 3, however, with the lowest of the industrial loadings was functioning as well as the control during the period of instability in the other two experimental units. After twomore » retention times, digesters 4 and 5 began to recover; volatile acids and supernatant lead levels decreased and gas volume, pH and COD and volatile solids reduction rose. This recovery shows the ability of the acidogenic and methanogenic bacteria to degrade a variable and potentially toxic industrial waste.« less" @default.
- W58453167 created "2016-06-24" @default.
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- W58453167 date "1980-12-01" @default.
- W58453167 modified "2023-09-24" @default.
- W58453167 title "Bioconversion of an industrial waste to methane gas" @default.
- W58453167 hasPublicationYear "1980" @default.
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