Monitoring of green waste composting process based on redox potential

Bioresource Technology
A KhalilP Prudent

Abstract

Among compostable matrices, green wastes represent a significant fraction which can be used as an amendment after composting. Several indicators, e.g. C(HA)/C(FA) or C/N ratios give information on evolution of the organic matrix during composting. However, measurement of these parameters is complex and requires laboratory conditions. The aim of this study was to propose on site easy-to-measure parameters to monitor composting process, such as redox potential (Eh), related to complex indices such as C(HA)/C(FA), C/N, A(210 nm)/A(280 nm), NH(4)(+)/NO(3)(-) ratios, and total organic matter (OM). Windrows were consisting in a mixture of green wastes such as palm, olive, cypress, pine, mimosa, and bay residues. By using covariance analysis, an opposite correlation between Eh and C(HA)/C(FA) ratio was found. Linear regression of this parameter with Eh was chosen to monitor the composting process. Therefore, Eh can be used to monitor green wastes composting.

Citations

Sep 1, 2015·Applied Microbiology and Biotechnology·Martin C KruegerDietmar Schlosser
Mar 21, 2015·Waste Management·Lu Zhang, Xiangyang Sun
Aug 21, 2016·Journal of Environmental Management·M A BustamanteF Tittarelli
Jan 12, 2020·Environmental Science and Pollution Research International·Yingkai LiYinsheng Li
Jul 18, 2020·International Journal of Environmental Research and Public Health·Muthu ManikandanJae-Wook Oh
Sep 18, 2015·Environmental Science and Pollution Research International·Alessandra CesaroVincenzo Belgiorno
Jan 28, 2021·Environmental Science and Pollution Research International·Rodrigo PobleteNezih Kamil Salihoglu
Jun 22, 2021·Journal of Environmental Health Science & Engineering·Verónica Isidra Domínguez-RodríguezRandy Howard Adams

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