Phytoremediation nke Ala Metọrọ Metọọ n'Iji Na-eji Ntuzi Ọdịnaya

Carbon arụ ọrụ nwere ihe carbonaceous sitere na unyi. A na-emepụta carbon na-arụ ọrụ site na pyrolysis nke ihe ndị sitere n'okike sitere na osisi. Ihe ndị a gụnyere coal, shells aki oyibo na osisi,akpa okpete,anụ soybeanna nkenke (Dias et al., 2007; Paraskeva et al., 2008). N'oke oke,nri anụa na-ejikwa maka mmepụta nke carbon arụ ọrụ. Iji carbon a na-arụ ọrụ bụ ihe a na-ahụkarị iji wepụ ọla na mmiri mkpofu, mana iji ya mee ihe maka imegharị igwe anaghị adịkarị n'ime ala ndị mmetọru (Gerçel na Gerçel, 2007; Lima na Marshall, 2005b). Carbon na-arụ ọrụ anụ ọkụkọ enwetara nwere ezigbo ike ijikọ igwe (Lima na Marshall, 2005a). A na-ejikarị carbon arụ ọrụ emezigharị ihe ndị na-emerụ emerụ na ala na mmiri n'ihi nhazi nke porous, nnukwu akụkụ elu na ikike mgbasa ozi dị elu (Üçer et al., 2006). Carbon arụ ọrụ na-ewepụ ọla (Ni, Cu, Fe, Co, Cr) na ngwọta site na mmiri ozuzo dị ka metal hydroxide, mgbasa ozi na carbon arụ ọrụ (Lyubchik et al., 2004). Almond husk ewepụtara AC wepụrụ Ni nke ọma na mmiri mkpofu yana yana enweghị H₂SO₄ọgwụgwọ (Hasar, 2003).

N'oge na-adịbeghị anya, a na-eji biochar dị ka mgbanwe ala n'ihi mmetụta bara uru na ọdịdị anụ ahụ na kemịkal dị iche iche nke ala (Beesley et al., 2010). Biochar nwere nnukwu ọdịnaya (ruo 90%) dabere na ihe nne na nna (Chan na Xu, 2009). Mgbakwunye biochar na-eme ka mgbasa nke carbon organic gbazere,ala pH, na-ebelata ọla na leachates ma gbakwunye nri macro (Novak et al., 2009; Pietikäinen et al., 2000). Ịnọgidesi ike nke biochar n'ime ala ogologo oge na-ebelata ntinye nke ọla site na itinye mgbanwe ndị ọzọ ugboro ugboro (Lehmann na Joseph, 2009). Beesley et al. (2010) kwubiri na biochar belatara mmiri cd na Zn soluble na ala n'ihi mmụba na carbon organic na pH. Carbon na-arụ ọrụ belatara mkpokọta ọla (Ni, Cu, Mn, Zn) n'ime ome osisi ọka toro n'ime ala emetọtọ ma e jiri ya tụnyere ala a na-emezigharịghị (Sabir et al., 2013). Biochar wedara nnukwu mkpokọta Cd na Zn soluble n'ime ala emetọọ (Beesley na Marmiroli, 2011). Ha kwubiri na sorption bụ usoro dị mkpa maka ijide ọla site na ala. Biochar wedara mkpokọta Cd na Zn ruo mbelata 300- na 45 n'ime mkpokọta mkpochapụ ha, otu n'otu (Beesley na Marmiroli, 2011).