4.7 Article

Thermal behavior of lignin and cellulose from waste composting process

Journal

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 111, Issue 1, Pages 589-595

Publisher

SPRINGER
DOI: 10.1007/s10973-012-2276-8

Keywords

Lignin; Cellulose; Composting process; FTIR and thermal analysis

Funding

  1. Instituto de Quimica-UNESP de Araraquara/SP
  2. CAPES (Coordenacao de Aperfeicoamento Pessoal de Nivel Superior)
  3. CNPQ (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico)
  4. FACTE (Fundacao de Apoio a Ciencia, Tecnologia e Educacao)

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The lignin and cellulose were extracted from reference material (leaves and twigs) and food of compost at different times composting: zero (raw), 30, and 120 days. According to thermogravimetric analysis and its derivative and differential scanning calorimetry curves for these samples, were verified during composting process there were considerable changes in its thermal profiles, as well as, characteristics lignin in cellulose samples and cellulose in lignin samples. These features were found by fourier transformed infrared spectroscopy.

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