The Anaerobic Fermentation of Lignin

Boruff, C. S.; Buswell, A. M.

doi:10.1021/ja01319a037

Cited by 26 publications

(10 citation statements)

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“…Table 1 indicates the VS percentage for the wheat straw was 10% higher than that for the chicken manure; the lignin content, however, was quite a bit higher. Lignin is very resistant to degradation by anaerobic fermentation (Boruff and Buswell, 1934), and it shields the cellulose materials and other volatile solids from enzymatic hydrolysis. A digestion study by Robbins et al (1979), involving dairy manure plus chemically delignified wheat straw, indicated that approximately 44% of the fermentable materials in the wheat straw is shielded by lignin.…”

Section: Resultsmentioning

confidence: 99%

Methane Gas from High Solids Digestion of Poultry Manure and Wheat Straw

Hills

Ravishanker

1984

Poultry Science

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An investigation was conducted for 15 months to assess the potential for methane production from high solids slurries consisting of manure from laying chickens combined with 0, 20, 40, and 60% by volatile solids (VS) weight chopped wheat straw. Two pilot scale digesters, each with an operating volume of 100 liters, were fed on alternate days at loading rates of 6 kg VS/m 3 -day. Retention times were held constant at 15 days, and the temperatures were maintained at 35 C. The methanogenic bacteria appeared to acclimate successfully to high concentrations of ammonia nitrogen (4.5 g/liter). Greatest gas production and volatile solids breakdown were observed for the digester fed 100% chicken manure (2.95 v/v gas/digester per day and 57.4%, respectively). Although addition of wheat straw provided a more stable environment for the methanogenic bacteria, gas production decreased with increasing amounts of straw (1.75 v/v gas/digester per day for 40% manure plus 60% straw). (

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Section: Resultsmentioning

confidence: 99%

Methane Gas from High Solids Digestion of Poultry Manure and Wheat Straw

Hills

Ravishanker

1984

Poultry Science

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“…Studies are clearly required to address this issue. Some studies indicate that these materials may be degradable on very long time scales [Schobert, 1978;Boruff and Buswell, 1934]. It is known that, after a landfill is covered, methane production continues for several decades, due to slowly decaying waste constituents.…”

Section: Agricultural Wastesmentioning

confidence: 99%

The production of methane from solid wastes

Bingemer¹,

Crutzen²

1987

J. Geophys. Res.

260

113

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An analysis is presented of possible worldwide production of methane from anaerobic decay of organic municipal and industrial wastes in landfills. The amount of methane released to the atmosphere from this source may now be in the range of 30–70×106 T/yr, which is between 6% and 18% of the total CH4 source. By far, most of this emission comes from the industrialized world. Release rates from these countries have been increasing steadily during the past decades, but growth rates are now gradually stagnating. In the future, the contribution from developing nations is expected to grow rapidly because of increasing population and urbanization. Consequently, methane release from landfills may become one of the main sources of atmospheric methane in the next century.

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“…In the 1930s several studies were carried out on the anaerobic utilization of agricultural waste with interest focussed on the fate of the lignin component. Boruff & Buswell (1934) observed that lignin from cornstalks fermented very slowly and incompletely under anaerobic conditions. Carbon balance data showed that 52% of added lignin was fermented to methane and carbon dioxide.…”

Section: Anaerobic Lignin Degradationmentioning

confidence: 99%