Characterization and energy potential of food waste from catering service in Hangzhou, China.
Waste Manag Res
; 32(8): 791-5, 2014 Aug.
Article
en En
| MEDLINE
| ID: mdl-24980033
ABSTRACT
Safe disposal of food waste is becoming an impending issue in China with the rapid increase of its production and the promotion of environmental awareness. Food waste from catering services in Hangzhou, China, was surveyed and characterized in this study. A questionnaire survey involving 632 units across the urban districts showed that 83.5% of the food waste was not properly treated. Daily food waste production from catering units was estimated to be 1184.5 tonnes. The ratio of volatile solid to total solid, easily biodegradable matter (including crude fat, crude protein and total starch) content in total solid and the ratio of total organic carbon to nitrogen varied in ranges of 90.1%-93.9%, 60.9%-72.1%, and 11.9-19.9, respectively. Based on the methane yield of 350 mL g VS(-1) in anaerobic batch tests, annual biogas energy of 1.0 × 10(9) MJ was estimated to be recovered from the food waste. Food waste from catering services was suggested to be an attractive clean energy source by anaerobic digestion.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Residuos Sólidos
/
Eliminación de Residuos
/
Conservación de los Recursos Energéticos
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Abastecimiento de Alimentos
País como asunto:
Asia
Idioma:
En
Año:
2014
Tipo del documento:
Article