Biomethanation of Carpet Grass (Axonopus fissifolius)
| Autor: | E. S. Amadi, Chima Ngumah, Justina Orji, JN Ogbulie |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Environmental Research
Waste Management Biotechnology Applied Microbiology Environmental Engineering Waste management biology Bioenergy Biogas Biofertilizer Anaerobic Digestion Renewable Energy Sustainability and the Environment Chemistry Management Monitoring Policy and Law Axonopus fissifolius Raw material Total dissolved solids biology.organism_classification Pollution Renewable energy anaerobic digestion grass waste biogas Anaerobic digestion Animal science Biofuel Digestate Waste Management and Disposal |
| Zdroj: | Environmental Research, Engineering and Management; Vol 66, No 4 (2013); 34-37 |
| ISSN: | 2029-2139 |
| Popis: | Axonopus fissifolius commonly called “carpet grass” was subjected to anaerobic digestion for 30 days. Anaerobic digestion was carried out in a batch-fed process at the ambient temperature of 27-29 0 C. Biomethane measurements were obtained by measuring the volume displacement of a saturated filtered calcium hydroxide solution in a transparent calibrated vessel. 42.7g of fresh carpet grass clippings yielded 1.955 L of biomethane. Biomethane potential (BMP) of carpet grass for a 30 day anaerobic digestion was 0.05 m 3 CH 4 kg -1 TS. The rates of biomethane potentials for the first, second, third, fourth and fifth six-day intervals were 1.5mL g -1 TS (2.81%), 6.4mL g -1 TS (14.58%), 16.1mL g -1 TS (30.18%), 17.74mL g -1 TS (33.25%), and 10.23mL g -1 TS (19.81%) respectively. The total solids, volatile solids and pH of feedstock and digestate were 85.80% and 85.56%, 90.91% and 87.58%, 6.6 (27 o C) and 6.9 (27 o C) respectively. The relatively high biomethane potential of carpet grass at the ambient temperature presented in this paper depicts anaerobic digestion as a viable means of profitably treating grass waste for both sanitation and generating biomethane especially in the tropics where the ambient temperatures are usually favourable for optimum biomethanation for most part of the year, thus making the process affordable and less cumbersome. DOI http://dx.doi.org/10.5755/j01.erem.66.4.5228 |
| Databáze: | OpenAIRE |
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