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Biomass compositions fermentation in initial stage of fresh municipal solid waste degradation in bioreactor landfill
| Content Provider | Semantic Scholar |
|---|---|
| Author | Guo-Jian, Li |
| Copyright Year | 2005 |
| Abstract | Lab-scale simulated fresh MSW bioreactor landfill columns, recirculated with the leachate from stabilized landfill layer, were setup. Sugar, protein, lipid, cellulose and lignin fermentation in the fresh MSW landfill layer were studied. The results indicated that sugar and protein fermentation caused high concentrations of organic carbon in the leachate during the initial stage of waste degradation. However, the degradation of lipid and cellulose during the initial stage was much slower, and they were not the key compositions causing heavy leachate pollution. Cellulose was the principle source of carbon for the methanogenetic process, and the hydrolysis rate of cellulose was the limiting factor for waste degradation and methanogenesis. The hydrolysis rate constants for all the compositions were between 0.01 to 0.1; the methane volume fraction found in the landfill gas reached 45% in 65 days. Sufficient capacity for degradation of acidic products from sugar and protein fermentation should be supplied when the bioreactor landfill technology is applied as the MSW characterized with high food waste content. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.actasc.cn/hjkxxb/ch/reader/create_pdf.aspx?falg=1&file_no=20050913&quarter_id=9&year_id=2005 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
