Gilles Raoul Meli Lontsi, Boris Merlain Kanouo Djousse, Clémentine Pernot, Alison D. Munson
{"title":"Production and characterization of eight biochars originating from agricultural waste in Cameroon","authors":"Gilles Raoul Meli Lontsi, Boris Merlain Kanouo Djousse, Clémentine Pernot, Alison D. Munson","doi":"10.1007/s10163-024-02022-5","DOIUrl":null,"url":null,"abstract":"<div><p>Biochar physicochemical properties vary greatly depending on the origin of the residues. The present study contributes to leveling the scientific gap on biochar properties. We produced and characterized the chemistry of 8 biochars from agricultural crop residues (corncobs, bean straws, cocoa pod husks, coconut shells, palm kernel shells, palm mesocarp fibers, rice husks, and cassava peels), for assessing their suitability as organic amendments, and their potential to sequester carbon dioxide in the soil. Bean straws and cocoa pod husks exhibited higher total nitrogen and phosphorus, exchangeable bases, and electrical conductivity. Ash content was highest in biochar from rice husks (43.8%). Coconut shells and corncobs had the highest total carbon concentration of 77.4% and 75.6%, respectively. Coconut shells exhibited the greatest carbon dioxide reduction potential (374.6) among all studied biochars. According to the International Biochar Initiative (IBI) standard, heavy metal concentrations were low in all tested biochar. Therefore, biochars from bean straw and cocoa pod husks were the most promising as agricultural amendments and biochar from coconut shells had the best carbon dioxide reduction potential. The advantages highlighted by this chemical characterization should be tested in field soils for validation.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02022-5.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Material Cycles and Waste Management","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s10163-024-02022-5","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Biochar physicochemical properties vary greatly depending on the origin of the residues. The present study contributes to leveling the scientific gap on biochar properties. We produced and characterized the chemistry of 8 biochars from agricultural crop residues (corncobs, bean straws, cocoa pod husks, coconut shells, palm kernel shells, palm mesocarp fibers, rice husks, and cassava peels), for assessing their suitability as organic amendments, and their potential to sequester carbon dioxide in the soil. Bean straws and cocoa pod husks exhibited higher total nitrogen and phosphorus, exchangeable bases, and electrical conductivity. Ash content was highest in biochar from rice husks (43.8%). Coconut shells and corncobs had the highest total carbon concentration of 77.4% and 75.6%, respectively. Coconut shells exhibited the greatest carbon dioxide reduction potential (374.6) among all studied biochars. According to the International Biochar Initiative (IBI) standard, heavy metal concentrations were low in all tested biochar. Therefore, biochars from bean straw and cocoa pod husks were the most promising as agricultural amendments and biochar from coconut shells had the best carbon dioxide reduction potential. The advantages highlighted by this chemical characterization should be tested in field soils for validation.
期刊介绍:
The Journal of Material Cycles and Waste Management has a twofold focus: research in technical, political, and environmental problems of material cycles and waste management; and information that contributes to the development of an interdisciplinary science of material cycles and waste management. Its aim is to develop solutions and prescriptions for material cycles.
The journal publishes original articles, reviews, and invited papers from a wide range of disciplines related to material cycles and waste management.
The journal is published in cooperation with the Japan Society of Material Cycles and Waste Management (JSMCWM) and the Korea Society of Waste Management (KSWM).