| 摘要 |
PURPOSE:To conduct excellent deodorization and water quality control by removing the malodor of hydrogen sulfide and ammonia with an active carbon with the pencil hardness, pore diameter, pore volume, etc., specified and consisting of a carbon crystallite and a sparingly graphitizable carbon. CONSTITUTION:A specified active carbon is used to remove malodorous hydogen sulfide and ammonia. Namely, this active carbon has a sparingly graphitizable cross-linked lattice in the void of the carbon crystallite, has B to 6B pencil hardness, 100-400Angstrom pore diameter, 150-500m<2>/g specific surface and 1.3-5.0ml/g pore volume and consists of an irregularly arranged carbon crystallite and sparingly graphitizable carbon. The active carbon is obtained by burning a spent tyre contg. metallic wire at 400-900 deg.C 111 the presence of oxygen, CO2 and steam. The water quality can be controlled by using the active carbon. The active carbon is packed in a pipe, and water is circulated through the pipe and purified. |
