Removal of Heavy Metals from Aqueous Solutions using Zeolite(LTA)

Elimination by Zeolite LTA is a very effective technique for the removal of heavy metals from aqueous solutions. Zeolite LTA is very good adsorbent for elimination of lead and zinc ions from aqueous solutions economically. The zeolite LTA crystallization from clay was studied under the conditions such as the concentration of alkalinity (5M NaOH), reaction, temperatures (100oC), the reaction times (2h) in addition to, the calcination of kaolin samples was an important factor that influenced on the zeolite LTA synthesis. Its applications in the elimination of heavy metal ions such as Pb2+, Zn2+, Cu2+, Ni2+ were studied and showed excellent results. The elimination of Cu2+, Ni2+, Pb2+ and Zn2+ in zeolite LTA was investigated and The selectivity sequence for ions removed was Pb2+>Cu2+>Zn2+>Ni2+.