Journal
BIORESOURCE TECHNOLOGY
Volume 263, Issue -, Pages 548-554Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.05.031
Keywords
Compost; Vermiculite; Food waste; Ammonia emissions; Decomposition
Funding
- National Key Research and Development Program of the Ministry of Science and Technology of China [2016YFD0600204]
- State Key Program of National Natural Science Foundation of China [31530007]
- Sanxin Forestry Project in Jiangsu Province [LYSX[2016]46]
- Specimen Platform of China
- Major Science and Technology Program for Water Pollution Control and Treatment [2012ZX07204-004-003]
- [2005DKA21403-JK]
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This study investigated the effects of adding vermiculite to the food waste composting process. Four treatments with varying vermiculite percent compositions, 0%, 5%, 10% and 15% (w/w, wet weight of food waste basis) mixed with initial food waste were designed and then composted for 42 days. Results show that adding vermiculite prolongs the thermophilic phase, speeds up the organic matter loss, reduces the NH3 emissions and electrical conductivity values. Compared to the control, the amount of nitrogen loss through NH3 emissions in the treatments of 5%, 10% and 15% vermiculite decreased by 9.89%, 26.39% and 18.65%, respectively. Finally this work suggests that vermiculite is a suitable additive for food waste composting, especially when the makeup of the compost is 10% vermiculite.
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