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Updated: Jun 9, 2025

Transformation of Organic Household Leftovers into a Peat Substitute
Published on: July 9, 2019
Innovation for recycling of organic matter through composter with automatic and sustainable temperature recording
Lucas Lourenço Castiglioni Guidoni1,2,3, Érico Kunde Corrêa4, Paulo César Sedrez Moncks5
1Post-Graduation Program in Biotechnology, CDTec, Federal University of Pelotas, Pelotas-RS, Brazil. lucaslcg@gmail.com.
Abstract:
Compost reactors, commonly used in experiments, industrial assays, and home residue treatment systems, have the potential to facilitate composting. Challenges persist in the realm of small-scale composting, encompassing facets such as temperature monitoring, homogenization of the compost mass, management of moisture with the control of leachate generation, and integration with a renewable energy source. This study assesses a pioneering composter prototype endowed with essential features to ensure a pragmatic and secure composting process. This includes the facilitation of remote access to temperature data via Bluetooth and a mobile application. Across successive trials, the scrutinized composter prototype consistently yielded reproducible outcomes, exhibiting a coefficient of variation below 25% for the majority of appraised parameters. In comparison to a conventional reactor, the decomposing residue mixture within the examined prototype manifested elevated temperatures (p < 0.05). Moreover, the tested prototype demonstrated C/N ratio lower than 20/1 within 45 days, a higher final nitrogen concentration, and enhanced germination of seeds that served as phytotoxicity bioindicators. Notably, the prototype needed 46.6% less space, offering improved leachate control, three times faster turning time, temperature monitoring, and reduced fly attraction.

