Preparation of activated carbons from cattle-manure compost by zinc chloride activation.
Dried cattle-manure compost was pyrolyzed by a one-step process to obtain activated carbon using chemical activation by zinc chloride. The influence of activation parameters such as ZnCl(2) to cattle-manure compost (ZnCl(2)/CMC) ratio, activation temperature and retention time on the final products was investigated. The resultant activated carbons were characterized by nitrogen adsorption-desorption isotherms at 77 K. The results showed that the surface area and pore volume of activated carbons, which were estimated by BET and t-plot methods, were achieved as high as 2170 m(2)/g and 1.70 cm(3)/g in their highest value, respectively. Thermogravimetric analysis (TGA) was carried out to monitor the pyrolysis process of cattle-manure compost (CMC) and ZnCl(2) impregnated one (ZnCl(2)/CMC). The capabilities of phenol adsorption were also examined for the CMC carbons prepared with various treatments.
Qian
Qingrong
Q
Graduate School of Science and Technology, Chiba University, Yayoi-cho 1-33 Inage-ku, Chiba 263-8522, Japan. qrqian@graduate.chiba-u.jp
Machida
Motoi
M
Tatsumoto
Hideki
H
D000327:Adsorption; D000818:Animals; D002244:Carbon / Q000737:chemistry*; D002417:Cattle; D002712:Chlorides / Q000737:chemistry*; D008372:Manure; D009584:Nitrogen / Q000737:chemistry; D011312:Pressure; D012987:Soil / Q000032:analysis*; D017967:Zinc Compounds / Q000737:chemistry*
D002712:Chlorides; D008372:Manure; D012987:Soil; D017967:Zinc Compounds; D002244:Carbon; C016837:zinc chloride; D009584:Nitrogen