ACTIVATED CARBON AND TRIHALOMETHANE REMOVAL METHOD

摘要

PROBLEM TO BE SOLVED: To provide activated carbon the trihalomethane adsorption capacity of which is very high and lasts over a long period of time; and a trihalomethane removal method using the activated carbon.;SOLUTION: The surface of activated carbon is treated with an organometallic compound represented by the formula: CX_mY_3-m-[CX_nY_2-n]_l-(CH₂)_p-M-R₃ (wherein X is F, Cl, or Br; Y is F, Cl, Br, or H; M is Si, Ti, or Al; R is an alkoxy group optionally having a halogen group or a 1-4C substituent; (m) is 1, 2, or 3; (n) is 1 or 2; (l) is an integer of 1-30; and (p) is an integer of 0-10). Since the part represented by CX_mY_3-m-[CX_nY_2-n]_l- has a halogen (F, Cl, or Br)-containing structure similar to the structure of a trihalomethane, the surface of the activated carbon is improved in the affinity to the trihalomethane, exhibiting improved adsorption capacity.;COPYRIGHT: (C)2005,JPO&NCIPI