Article thumbnail

Transformações químicas da matéria orgânica durante a compostagem de resíduos da indústria madeireira

By Cristiane R. Budziak, Claudia M. B. F. Maia and Antonio S. Mangrich

Abstract

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

Topics: humic acid structures, composting of sawdust, paper mill sludge
Publisher: Sociedade Brasileira de Química
Year: 2004
OAI identifier: oai:periodicos.ibict.br.QuimicaNova:oai:scielo:S0100-40422004000300007
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.scielo.br/scielo.ph... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.