Characterization and energy potential of food waste from catering service in Hangzhou, China.
Waste Manag Res
; 32(8): 791-5, 2014 Aug.
Article
em 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.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Resíduos Sólidos
/
Eliminação de Resíduos
/
Conservação de Recursos Energéticos
/
Abastecimento de Alimentos
País/Região como assunto:
Asia
Idioma:
En
Revista:
Waste Manag Res
Assunto da revista:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
China