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Pilot-scale membrane-covered composting of food waste: Initial moisture, mature compost addition, aeration time and rate.
Wang, Fei; Pan, Ting; Fu, Dafang; Fotidis, Ioannis A; Moulogianni, Christina; Yan, Yixin; Singh, Rajendra Prasad.
Afiliación
  • Wang F; School of Civil Engineering, Southeast University, Nanjing 211189, China.
  • Pan T; School of Civil Engineering, Southeast University, Nanjing 211189, China.
  • Fu D; School of Civil Engineering, Southeast University, Nanjing 211189, China.
  • Fotidis IA; School of Civil Engineering, Southeast University, Nanjing 211189, China; Department of Environment, Ionian University, 29100 Zakynthos, Greece.
  • Moulogianni C; Department of Environment, Ionian University, 29100 Zakynthos, Greece.
  • Yan Y; School of Civil Engineering, Southeast University, Nanjing 211189, China. Electronic address: 101300281@seu.edu.cn.
  • Singh RP; School of Civil Engineering, Southeast University, Nanjing 211189, China. Electronic address: rajupsc@seu.edu.cn.
Sci Total Environ ; 926: 171797, 2024 May 20.
Article en En | MEDLINE | ID: mdl-38513870
ABSTRACT
The impact of different operational parameters on the composting efficiency and compost quality during pilot-scale membrane-covered composting (MCC) of food waste (FW) was evaluated. Four factors were assessed in an orthogonal experiment at three different levels initial mixture moisture (IMM, 55 %, 60 %, and 65 %), aeration time (AT, 6, 9, and 12 h/d), aeration rate (AR, 0.2, 0.4, and 0.6 m3/h) and mature compost addition ratio (MC, 2 %, 4 %, and 6 %). Results indicated that 55 % IMM, 6 h/d AT, 0.4 m3/h AR, and 4 % MC addition ratio simultaneously provided the compost with the maximum cumulative temperature and the minimum moisture. It was shown that the IMM was the driving factor of this optimum composting process. On contrary, the optimal parameters for reducing carbon and nitrogen loss were 65 % IMM, 6 h/d AT, 0.4 m3/h AR, and 2 % MC addition ratio. The AR had the most influence on reducing carbon and nitrogen losses compared to all other factors. The optimal conditions for compost maturity were 55 % IMM, 9 h/d AT, 0.2 m3/h AR, and 6 % MC addition ratio. The primary element influencing the pH and electrical conductivity values was the AR, while the germination index was influenced by IMM. Protein was the main organic matter limiting the composting efficiency. The results of this study will provide guidance for the promotion and application of food waste MCC technology, and contribute to a better understanding of the mechanisms involved in MCC for organic solid waste treatment.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Compostaje / Eliminación de Residuos Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Compostaje / Eliminación de Residuos Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos