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Chemistry for Sustainable Development

2006 year, number 2

State and Biochemical Transformations of Stored Waste Wood. Analysis and Forecast

S. A. MEDVEDEVA1, I. V. VOLCHATOVA1, G. P. ALEKSANDROVA1, I. A. ANTIPOVA1, L. I. ANTONOVA1, O. G. KUZMINA2 and V. A. VEBER2
1Favorsky Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences,
Ul. Favorskogo 1, Irkutsk 664033 (Russia)
E-mail: irina@irioch.irk.ru
2Sibgiprobum JSC,
Ul. Stepana Razina 6, Irkutsk 664033 (Russia)
(Received November 10, 2005; revised January 27, 2006)
Pages: 163-169

Abstract

Physical and chemical composition of the stored waste wood taken from the pits of the Ust-Ilimsk Timber Industrial Complex (TIC) was investigated. The microbiological and sanitary-hygienic status of the waste wood was examined. The experimental data obtained provide evidence that the mass in the pits is friable because of large-size wastes, so oxygen access is provided even to the deep layers in the pit. Aerobic microorganisms (fungi and bacteria) that had occupied the lowest old layers have already created a united community that carries out biochemical destruction of waste wood forming ecologically dangerous lignin-like substances, neutral compounds, phenols and acids. Intense microbiological activity can lead to spontaneous ignition of waste wood, which belongs to the class of fire dangerous substances.