Ho lokisa limela ka tlhaho mobung o silafalitsoeng ke tšepe ho sebelisoa liphetoho tsa tlhaho

Khabone e sebetsang e na le thepa ea carbonaceous e tsoang mashaleng. Khabone e sebetsang e hlahisoa ke pyrolysis ea thepa ea tlhaho e tsoang limela. Lintho tsena li kenyelletsa mashala, likhetla tsa kokonate le patsi,mokoetla oa 'moba,likhetla tsa soyale ka bokhutšoanyane (Dias et al., 2007; Paraskeva et al., 2008). Ka tekanyo e lekanyelitsoeng,manyolo a liphoofoloHape di sebediswa bakeng sa tlhahiso ya khabone e kentsweng tshebetsong. Tshebediso ya khabone e kentsweng tshebetsong e tlwaelehile ho tlosa ditshila metsing a ditshila, empa tshebediso ya yona bakeng sa ho thibela tshepe ho sisinyeha ha e tlwaelehile mobung o silafetseng (Gerçel le Gerçel, 2007; Lima le Marshall, 2005b). Khabone e kentsweng tshebetsong e tswang mantle a dikgoho e ne e na le bokgoni bo botle ba ho tlama tshepe (Lima le Marshall, 2005a). Khabone e kentsweng tshebetsong hangata e sebediswa bakeng sa ho lokisa ditshila mobung le metsing ka lebaka la sebopeho se nang le masoba, sebaka se seholo sa bokahodimo le bokgoni bo phahameng ba ho monya metsi (Üçer et al., 2006). Khabone e kentsweng tshebetsong e tlosa ditshila (Ni, Cu, Fe, Co, Cr) ho tloha tharollong ka pula e le hydroxide ya tshepe, ho monya metsi hodima khabone e kentsweng tshebetsong (Lyubchik et al., 2004). AC e tswang ho makhapetla a almonde e tlosa Ni ka katleho metsing a ditshila ka le ntle le H₂SO₄kalafo (Hasar, 2003).

Haufinyane tjena, biochar e sebelisitsoe e le phetoho ea mobu ka lebaka la litlamorao tsa eona tse molemo holim'a thepa e fapaneng ea 'mele le ea lik'hemik'hale ea mobu (Beesley et al., 2010). Biochar e na le litaba tse phahameng haholo (ho fihlela ho 90%) ho latela thepa ea motsoali (Chan le Xu, 2009). Ho eketsa biochar ho ntlafatsa ho monngoa ha khabone e qhibilihisitsoeng ea tlhaho,pH ea mobu, e fokotsa litšepe tse leachates mme e eketsa limatlafatsi tse kholo (Novak et al., 2009; Pietikäinen et al., 2000). Ho phehella ha biochar nako e telele mobung ho fokotsa ho kenngoa ha litšepe ka ho sebelisoa khafetsa ha liphetoho tse ling (Lehmann le Joseph, 2009). Beesley et al. (2010) ba fihletse qeto ea hore biochar e fokotsa Cd le Zn tse qhibilihang metsing mobung ka lebaka la keketseho ea khabone ea tlhaho le pH. Khabone e sebetsang e fokolitse mahloriso a tšepe (Ni, Cu, Mn, Zn) makhasing a limela tsa poone tse holisitsoeng mobung o silafetseng ha ho bapisoa le mobu o sa fetoloang (Sabir et al., 2013). Biochar e fokolitse mahloriso a phahameng a Cd le Zn tse qhibilihang mobung o silafetseng (Beesley le Marmiroli, 2011). Ba fihletse qeto ea hore ho sorption ke mokhoa oa bohlokoa oa ho boloka litšepe ke mobu. Biochar e fokoditse mahloriso a Cd le Zn ho fihlela ho fokotseha ha mahloriso a tsona a leachate ka makhetlo a 300 le a 45, ka ho latellana (Beesley le Marmiroli, 2011).