Levantamento da liberdade de operação atual de biodigestores domésticos no Brasil

Abstract

The population growth along with economic development has increased waste Production, however, waste treatment methods have not evolved at the same pace. Due to the high demand for waste treatment from households nowadays, biodigesters are becoming increasingly relevant as a potential technology capable of proper treatment, in addition to generating biogas and biofertilizer as by-products. However, this knowledge is still limited, so a survey of domestic biodigester models capable of meeting these demands is essential to disseminate this technology to the public. Therefore, the present work aims to survey the operational freedom of domestic biodigester models and the state of the art in this area, classify the researched models, and review patent research mechanisms. For this purpose, a study was conducted on search techniques used to apply appropriate filters, thereby reducing the amount of information and focusing on the subject at hand. Subsequently, an approach to the types of searches made in patent databases was conducted to reduce the number of patents and focus only on domestic biodigester models. Based on the research methods, a diverse set of domestic biodigester models was found, designed to meet the needs of both small households, as exemplified by the HomeBiogas model, and the requirements of a community of 100 people, as in the case of the Plug Flow model. It was observed that operational freedom varies depending on the information source, with scientific research having greater operational freedom and patent models having less. The combination of this knowledge resulted in the proposition of potential solutions for the treatment of waste produced in households, playing an important role in promoting sustainable practices and advancing environmental and social development.