Energy and protein production from pulp mill wastes. Annual report, September 15, 1978--December 15, 1978
Year: 1978
Type: report
Abstract: Effort was concentrated during the past quarter to define the extent of biological control necessary to achieve high production rates of methane. Although sustained production rates in excess of 100 cc/hr were consistently obtained in the previous quarter, the fermentation activity decreased with respect to productivity. All efforts during the past quarter proved ineffective in arresting the decline in productivity. Methane production now averaging 20 cc/hr is no better than productivity previously obtained on ozonated SSL with no supplemental methyl alcohol addition being added. Although it is still evident that supplemental methyl alcohol enhances methane production, the rate is now below the satisfactory or expected level. The fundamental conclusion one must draw from this quarter's results is that methane fermentation of simple oxygenated molecules is more efficient and produces a richer off-gas in terms of energy content than the same fermentation conducted on low molecular weight fragments obtained by the ozonation of SSL.
DOI: 10.2172/6357842
Authors: M.F. Jurgensen, J.T. Patton
Institution: Michigan Technological University
Language: English
Subfield: Building and Construction
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4206201591