| 摘要 |
PURPOSE:To obtain the titled material which has a volatile content, a fixed carbon content, etc. in specified ranges, has a pore structure suitable for the growth of a microorganism, and is suitable as a carrier for growing various microorganisms, by low-temperature carbonization of a coal of a low ash content. CONSTITUTION:A coal of a low ash content is ground to a particle size of 10mm or less and is then subjected to rapid carbonization at a low temperature of about 400-750 deg.C for 5-30min, giving an objective coal-base carbonaceous material for conditioning a microorganism which has a volatile content, based on a dry ash content, of 7-25%, a fixed carbon content of 75-93%, a bulk density of 0.1-0.8g/ml, and a specific surface area of 100-300m<2>/g. The material thus obtained has a great effect particularly on the multiplication of microorganisms useful for the growth of a plant. By mixing this carbonaceous material with a soil, the soil environment can be improved, and the growth of various agricultural products, various horticultural plants, etc. can be promoted. |
