Hydrothermal carbonization of kitchen waste
Hydrothermal carbonization is a suitable method for energy and material recovery of wet heterogeneous kitchen waste. The paper examines the ability of the process to produce stable, energy-rich material without harmful by-products from lunch leftovers, raw potatoes, creamy yogurt and raw onions. Res...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2016-06-01
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| Series: | Research in Agricultural Engineering |
| Subjects: | |
| Online Access: | https://rae.agriculturejournals.cz/artkey/rae-201602-0004_hydrothermal-carbonization-of-kitchen-waste.php |
| Summary: | Hydrothermal carbonization is a suitable method for energy and material recovery of wet heterogeneous kitchen waste. The paper examines the ability of the process to produce stable, energy-rich material without harmful by-products from lunch leftovers, raw potatoes, creamy yogurt and raw onions. Results of the batch experiments confirm the hypothesis that waste processing results in homogenous energy-rich (> 24 MJ/kg) and carbon-rich (> 63 % wt.) material. The biochar of creamy yogurt reaches the highest lower-heating value of 31.75 MJ/kg. In terms of energy use and emission concentrations, all samples meet legal requirements for incineration in combustion devices. Phytotoxicity tests prove the harmlessness of the liquid by-product for agricultural purposes. |
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| ISSN: | 1212-9151 1805-9376 |