BIOTECHNOLOGICAL DEGRADATION OF WOOD WASTES

Management of Wastes from Wood Preserving Facilities

INTRODUCTION Wood preserving is a significant, diverse and well established industry with five hundred forty-seven known operating plants in the United States. (1) The principal product of these plants is chemically treated wood for use as railroad ties, utility poles, and construction materials. In 1984, the industry treated about 500 million cubic feet of wood products. (2) Wood is chemically...

Biotechnological Production of Xylitol from Agro-Industrial Wastes

Xylitol is a polyalcohol of five carbon atoms which is widely used in the food and chemical industry. Its interest is due to the sweetening power similar to that of sucrose. However, it has been shown that the use of xylitol as a sweetener is better due to its anticariogenecity, tooth rehardening and remineralization properties. It is suitable as sugar substitute for diabetics, and it limits th...

Thermal Degradation of Wood Components:

Wastes into wood: composites are a promising new resource.

-Chronically hypoxic cells were 5 times more resistant to Adriamycin (ADR) than exponentially growing oxic cells. On reoxygenation, resistance decreased slowly to reach the ADR sensitivity of oxic cells after 24 h. With increasing pH, ADR efficiency increased more in oxic than in chronically hypoxic cells. With increasing cell density, ADR efficiency decreased linearly. The differences in ADR e...

Degradation Characteristics of Wood Using Supercritical Alcohols

In this work, the characteristics of wood degradation using supercritical alcohols have been studied. Supercritical ethanol and supercritical methanol were used as solvents. The kinetics of wood degradation were analyzed using the nonisothermal weight loss technique with heating rates of 3.1, 9.8, and 14.5 °C/min for ethanol and 5.2, 11.3, and 16.3 °C/min for methanol. Three different kinetic a...