Ispitivanje efikasnosti različitih sorpcionih materijala za uklanjanje Cu(II) jona iz vodenog rastvora

Abstract

U ovom radu je ispitivana efikasnost (bio)sorpcije više materijala u uklanjanju bakarnih jona iz vodenog rastvora. Koncentracija bakarnih jona u rastvoru je bila 2mmol/l, M/V odnos 10 g/l, a pH rastvora je bio podešen na 5. Karakterizacija korišćenih materijala je izvršena uz pomoć skenirajuće elektronske mikroskopije. SEM-EDX analize materijala ukazuju na to da se vezivanje bakra dešava uglavnom preko jonske izmene.Uklanjnjanje jona bakra je ispitivano na sledećim materijalima: M.spicatum, koštica breskve, koštica kajsije, oklasak kukuruza, bentonit, zeolit, apatit, apatit i modifikovani NH4 zeolit i modifikovani NH4 zeolit. Najbolji rezultati dobijeni su sa bentonitom i biomasom M.spicatum. Stoga, bi trebalo ispitati mogućnost primene kombinovanih adsorbenata. Takođe, ovaj rad ima za cilj da promoviše biosorpciju i adsorpciju kao alternativne tehnologije za prečišćavanje otpadnih voda zasnovanih na upotrebi ekonomski prihvatljivih bioloških otpadnih materija i mineralnih sirovina koje karakterišu niske cene i visoka efikasnost.

In the present study the (bio)sorption efficiency of different materials for the removal of copper ions from aqueous solution has been investigated. Concentration of cooper ions in solutions was 2mmol/l, M/V ration 10 g/l and pH of the solutions were adjusted at 5. Used materials were characterized by scanning electron microscopy. SEM-EDX analyses of some materials indicate that copper binding occurs mainly through ion exchange mechanism, between Cu(II) and exchangeable cations. Removal of copper ions was investigated in the following materials: M. spicatum, peach pits, apricot pits, corn cobs, bentonite, zeolite, apatite, apatite and NH4 modified zeolite and modified zeolite NH4. Best results in copper ions removal showed bentonite and M.spicatum. Therefore, it should examine the possibility of using combined adsorbents. The work is aimed to promote biosorption and adsorption as alternative technologies for wastewater treatment based on the use of economically acceptable biological waste materials and mineral raw materials which are characterized by low cost and high efficiency.