Comparative evaluation of performance and usability of small-scale household composting with different geometric models

Authors

DOI:

https://doi.org/10.5327/z2176-947820200757

Keywords:

organic solid waste; valorization of solid waste; small-scale composting; composting bins; design.

Abstract

The evaluation of layout influence on the operational performance and usability of small-scale composters contributes to produce compact solutions with simplified operation and sanitary safety, suitable for reduced spaces and continued use. This study aims to report the influence of different designs on the composting process and the usability of compost bins. Five composters of similar scale (3 liters) and different geometric shapes were designed, manufactured, and tested. Bench tests were carried out for 60 days, and physical, chemical, and sanitary parameters were monitored, as well as the quality of the compost, according to agronomic parameters. The composters were filled with the same proportions of organic residues (food residues, dry leaves, and lawn trimming) to obtain the ideal C:N ratio. Three geometrical layouts were tested concerning usability (hexagonal prism, cube, and parallelepiped) by volunteers for 50 days. The performed tests associated with the statistical treatment of results showed that the geometry of the prototypes interfered with the quality of the final compost and the composter operation. The hexagonal prism and the cube showed greater usability. The results represent a significant contribution to the advancement of solutions in decentralized composting.

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Published

2021-02-04

How to Cite

Glicerio Dazzi, J., Daré Zampirolli Pires, P., Nicolau Korres, A. M., Risso Günther, W. M., Servare Dadalto, F., & Bringhenti, J. R. (2021). Comparative evaluation of performance and usability of small-scale household composting with different geometric models. Revista Brasileira De Ciências Ambientais (RBCIAMB), 56(1), 180–191. https://doi.org/10.5327/z2176-947820200757

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