| Literature DB >> 30715701 |
Daniely Reis Santos1, Otávio da Mata Cunha1, Márcia Cristina Bisinoti1, Odair Pastor Ferreira2, Altair Benedito Moreira1, Camila Almeida Melo3.
Abstract
Hydrothermal carbonizationpan> transforms biomass into value-added material called hydrochar. The release of nutrienpan>ts (P, N, Ca, Mg, and K) and organic carbon (TOC) from hydrochar in different extractive solutions was investigated in this study. Two sets of hydrochar were produced: (i) hydrochar prepared from sugarcane bagasse and vinasse mixture (BV-HC) and (ii) hydrochar prepared by the addition of H3PO4 to this mixture (BVA-HC). Both hydrochar types released significative amounts of nutrient and organic carbon, mainly Ca (5.0 mg g-1) in the mixture (KCl, K2SO4, NaOH, 1:1:1) extractive solution and TOC (72.6 mg g-1) in the NaOH extractive solution, for BV-HC. Nutrient release was influenced by pH and ionic strength. The release of P, Ca, and Mg was affected by the presence of insoluble phosphate phases in BVA-HC. The release of nutrients P, N, Ca, Mg, and K and organic carbon demonstrated that hydrochar has potential for soil application purposes.Entities:
Keywords: Hydrochar; Nutrients; Release; Slow release fertilizer; Sugarcane bagasse; Vinasse
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Year: 2019 PMID： 30715701 DOI： 10.1007/s11356-019-04341-9
Source DB: PubMed Journal: Environ Sci Pollut Res Int ISSN： 0944-1344 Impact factor: 4.223