Destination of urban pruning organic waste by means of biochar applied to the soil: Analysis of the compactation curve / Destinação de resíduos orgânicos de poda urbana por meio de biochar aplicado no solo: Análise de curva de compactação

Marcela Merides Carvalho, Willian Kazuhissa Koh, Felipe Hashimoto Fengler, Adriano Bressane, Regina Márcia Longo, Admilson Irio Ribeiro

Abstract


Urban pruning waste can have multiple uses from direct burning wood as energy to its use as organic fertilizers in the composting process. However, the lack of suitable places for the disposal of this type of waste is a problem for municipalities with large urbanization. Thus, “biochar” presents itself as an alternative proposal for the disposal of urban pruning organic waste. In this context, the present work aimed to verify the behavior of soil compaction curves through the application of biochar as a form of conditioning and waste disposal. Soil collection was carried out at the Institute of Science and Technology of Sorocaba (ICTS –UNESP Sorocaba) followed by drying and sieving for soil characterization through particle size analysis. The tests were performed with application of biochar in the soil using the Proctor Normal Compaction Test (NBR 7182/1986) at 35 t/ha and 70 t/ha in different textures. The data of the compaction curves and comparative statistical analysis presented satisfactory results. The results expose a maximum specific weight reduction and optimum humidity increase in all samples with application of biochar. Thus, the proposal for the redestination of urban pruning organic waste by means of biochar applied to the soil can be considered an alternative for urban management of pruning organic waste and may help in integrated solid waste management.


Keywords


Urban afforestation; Waste Management; Sustainability; Science Environmental.

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References


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DOI: https://doi.org/10.34117/bjdv6n11-615

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