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Effect of turning frequencies on composting biodegradable municipal solid waste quality

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  • Getahun, T.
  • Nigusie, A.
  • Entele, T.
  • Gerven, T. Van
  • Bruggen, B. Van der

Abstract

The objective of this study was to investigate effects of turning frequency on physical, chemical and biological properties of municipal solid waste compost. A fixed turning frequency was compared with a temperature-controlled turning method. The moisture content of the treatments was adjusted to 50–60% in all cases. The results showed that the turning frequency significantly (P<0.01) affected temperature, pH, total carbon, total nitrogen, the carbon to nitrogen ratio and the head weight of lettuce grown on the compost. However, the turning frequency did not significantly (P>0.05) affect electrical conductivity. High losses of total carbon and nitrogen were observed in the frequently turned compost bin. However, high plant nutrient content and reasonable concentration of heavy metals with no restrictions for use in agriculture were observed in all bins except for Molybdenum in bin A (turned every time when the temperature either decreases or becomes constant for three consecutive days) and B (turned every week). Interestingly, plant growth bioassays indicated that the seedling emergences, head weight and leaf area of lettuces were higher in less frequently turned compost. Therefore, composting of municipal solid waste, in particular at a low frequency of turning, can be the best strategy to manage solid waste and boost agricultural productivity.

Suggested Citation

  • Getahun, T. & Nigusie, A. & Entele, T. & Gerven, T. Van & Bruggen, B. Van der, 2012. "Effect of turning frequencies on composting biodegradable municipal solid waste quality," Resources, Conservation & Recycling, Elsevier, vol. 65(C), pages 79-84.
    • Handle: RePEc:eee:recore:v:65:y:2012:i:c:p:79-84
    DOI: 10.1016/j.resconrec.2012.05.007
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    Cited by:

    1. Cesaro, A. & Belgiorno, V. & Guida, M., 2015. "Compost from organic solid waste: Quality assessment and European regulations for its sustainable use," Resources, Conservation & Recycling, Elsevier, vol. 94(C), pages 72-79.
    2. Patricia Torres-Lozada & Pablo Manyoma-Velásquez & Jenny Fabiana Gaviria-Cuevas, 2023. "Prioritization of Waste-to-Energy Technologies Associated with the Utilization of Food Waste," Sustainability, MDPI, vol. 15(7), pages 1-13, March.
    3. Ashikur Rahman & Teoh Ai Ping & Syeda Khadija Mubeen & Imran Mahmud & Ghazanfer Ali Abbasi, 2022. "What Influences Home Gardeners’ Food Waste Composting Intention in High-Rise Buildings in Dhaka Megacity, Bangladesh? An Integrated Model of TPB and DMP," Sustainability, MDPI, vol. 14(15), pages 1-21, August.

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