Biochemical changes, metal content, and spectroscopic analysis in sewage sludge composted with lignocellulosic residue using FTIR-MIR and FTIR-NIR

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dc.creatorSilvana Ferreira Bicalho
dc.creatorRodinei Facco Pegoraro
dc.creatorMaria Nilfa Almeida Neta
dc.creatorAline Martins Ferreira Barroso
dc.creatorLetícia Oliveira França
dc.creatorLeandro Soares Santos
dc.creatorRobério Rodrigues Silva
dc.creatorMárcio Neves Rodrigues
dc.creatorRegynaldo Arruda Sampaio
dc.creatorLucas Barbosa Viana
dc.date.accessioned2025-08-04T18:13:34Z
dc.date.accessioned2025-09-09T01:12:52Z
dc.date.available2025-08-04T18:13:34Z
dc.date.issued2024-05-13
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.identifier.doihttps://doi.org/10.1007/s11356-024-33652-9
dc.identifier.issn1614-7499
dc.identifier.urihttps://hdl.handle.net/1843/83993
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.rightsAcesso Restrito
dc.subjectAdubos e fertilizantes
dc.subjectAdubos compostos
dc.subjectLodo de esgoto
dc.subjectHúmus
dc.subjectLignina
dc.titleBiochemical changes, metal content, and spectroscopic analysis in sewage sludge composted with lignocellulosic residue using FTIR-MIR and FTIR-NIR
dc.typeArtigo de periódico
local.citation.epage35743
local.citation.spage35727
local.citation.volume31
local.description.resumoThe use of lignocellulosic residues, originating from sawdust, in composting sewage sludge for organic fertilizer production, is a practice of growing interest. However, few studies have explored the effect of the proportion of sawdust and sewage sludge raw materials on composting performance in the humification process. This study assessed the addition of sawdust in the sewage sludge composting process, regarding carbon content, presence of heavy metals, and humification of the organic compost. The experimental design employed was a randomized complete block design with five treatments featuring different proportions of organic residues to achieve C/N ratios between 30–1 (T1: 100% sewage sludge and 0% sawdust, T2: 86% sewage sludge and 14.0% sawdust, T3: 67% sewage sludge and 33% sawdust, T4: 55% sewage sludge and 45% sawdust, and T5: 46.5% sewage sludge and 53.5% sawdust) and five replications, totaling 25 experimental units. The addition of lignocellulosic residue in sewage sludge composting increased the levels of TOC and the C/N ratio, reduced the levels of pH, P, N, Na, Ba, and Cr, and did not interfere with the levels of K, Ca, Mg, S, CEC, labile carbon, and metals Fe, Zn, Cu, Mn, Ni, and Pb. The increase in the proportion of sawdust residue favored the degradation of aliphatic groups, increasing the presence of aromatic structures and reducing humification at the end of composting. The use of sawdust as a lignocellulosic residue in sewage sludge composting is a viable and efficient alternative to produce high-quality organomineral fertilizers.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://link.springer.com/article/10.1007/s11356-024-33652-9

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