The monitoring of gases, temperature and humidity is important for quantifying the benefit of microorganisms within the decomposition of organic matter. Due to the difficulty of obtaining automated devices, this type of monitoring is usually done manually and with a daily resolution for sampling. Based on such a problem, this study aims at developing an automatic monitoring system using free software and DIY hardware, capable of testing the environment temperature and humidity, also, the temperature within the decomposing matter, as well as the gases emitted during degradation of organic matter (methane, ammonia and carbon dioxide), in two different containers. One of the packages was treated with beneficial microorganisms, while the other package was not treated. A reduction of polluting gases such as methane, ammonia and carbon dioxide has been demonstrated by 93.09%, 35.17% and 13.63%, respectively.

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