An Assessment of Anaerobic Thermophilic Co-Digestion of Dairy Cattle Manure and Separated Tomato Greenhouse Waste in Lab-Scale Reactors
| Autor: | Đurđica Kovačić, Robert Spajić, Daria Jovičić, Davor Kralik |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Agriculture (General)
0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences 01 natural sciences S1-972 Animal science Biogas Bioenergy biogas 021108 energy dairy cow manure Waste Management and Disposal 0105 earth and related environmental sciences anaerobic co-digestion tomato greenhouse waste Chemistry Mechanical Engineering methane Biodegradable waste Total dissolved solids Manure Anaerobic digestion Biofuel Agronomy and Crop Science Cow dung |
| Zdroj: | Acta Technologica Agriculturae, Vol 22, Iss 2, Pp 38-42 (2019) |
| ISSN: | 1338-5267 |
| Popis: | Anaerobic co-digestion of dairy cow manure (DCM) and separated tomato greenhouse waste (tomato stalks and leaves (TSL) and rotten and damaged tomato fruits – TF) was conducted under batch thermophilic conditions (T = 55 °C) for period of 45 days. Concentrations of substrates (tomato waste) were 5 and 10% (w/v). Each substrate, as well as experimental mixtures, was analysed in order to specify the content of pH, total solids (TS), volatile solids (VS), total extractable nitrogen (TN) and total organic carbon (TOC). Biogas yield and composition, as well as cumulative biogas curves, were reported. In comparison to DCM monodigestion (329.5 cm3·g−1 VS), biogas yield was significantly improved in experiment C (365.1 cm3·g−1 VS) (with 5% (w/v) TF added), whereas methane yield did not show any significant difference. Experiment D (with 10% (w/v) TSL added) resulted in significantly lower biogas and methane yields in contrast to the rest of experiments performed. Average methane content in all analysed experimental samples ranged from 65 to 69%. It is evident from the results that biogas production can be improved by addition of separated tomato greenhouse waste to DCM process and issue of organic waste disposal could be effectively solved. |
| Databáze: | OpenAIRE |
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