Dechlorination/detoxification of aromatic chlorides using fly ash under mild conditions.
An efficient dechlorination/detroxification method for p-nitrochlorobenzene, p-chloroanisole and 1-chloronaphthalene on municipal waste incinerator fly ash in presence of reducing agents with water/alcohol mixtures was developed. Dechlorination% was higher in water/isopropanol mixture at temperature <100 degrees C. Metal contents of fly ash played a vital role in enhancing dechlorination at low temperature. Moreover, the fly ash particles provided the surface to accomplish reduction and substitution reactions by adsorbing the chlorinated aromatic compound, hydrogen and hydroxyl ions. The mechanism of dechlorination was envisaged.
Ghaffar
Abdul
A
Department of Chemistry, Faculty of Science and Engineering, Saga University, 1 Honjo-machi, Saga 840-8502, Japan. ghaffargreat@yahoo.com
Tabata
Masaaki
M
D002244:Carbon / Q000737:chemistry*; D002713:Chlorine / Q000302:isolation & purification*; D060729:Coal Ash; D006256:Hazardous Waste / Q000032:analysis; D008670:Metals / Q000737:chemistry; D009281:Naphthalenes / Q000737:chemistry*; D009578:Nitrobenzenes / Q000737:chemistry*; D010084:Oxidation-Reduction; D052638:Particulate Matter / Q000737:chemistry*; D018505:Waste Management / Q000379:methods*; D014867:Water / Q000737:chemistry
D060729:Coal Ash; D006256:Hazardous Waste; D008670:Metals; D009281:Naphthalenes; D009578:Nitrobenzenes; D052638:Particulate Matter; D014867:Water; D002713:Chlorine; D002244:Carbon; C010407:4-chloronitrobenzene; C031337:1-chloronaphthalene