Química Nova | |
Transformações químicas da matéria orgânica durante a compostagem de resíduos da indústria madeireira | |
Cristiane R. Budziak1  Claudia M. B. F. Maia1  Antonio S. Mangrich1  | |
[1] ,Universidade Federal do Paraná Departamento de Química Curitiba PR | |
关键词: humic acid structures; composting of sawdust; paper mill sludge; | |
DOI : 10.1590/S0100-40422004000300007 | |
来源: SciELO | |
【 摘 要 】
Composting of sawdust and paper mill sludge, using a "Kneer" process reactor, was studied in an attempt to elaborate upon organic matter (OM) transformation during the process and to define parameters to measure the compost maturity level. Temperature, electron paramagnetic resonance (EPR) data, ash and C, H, N and S contents, and a spectroscopic method using ultraviolet-visible (UV-VIS) for alkaline (pH = 8.5) and solid samples was used to study the maturity of the compost samples. These parameters were measured in 6 humic acids (HA) extracted from the compost samples during 29 days. The results of this work show that the "Kneer" process is efficient in transforming ligno-celulitic residues in a short time (29 days), into an organic fertilizer material with application perspectives.
【 授权许可】
CC BY-NC
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
【 预 览 】
Files | Size | Format | View |
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RO202005130061397ZK.pdf | 375KB | download |