Investigation and Presentation of a Method for Absorbing Heavy Metal Ions (Pb۲+) from Wastewater Using Zeolite Nanocomposite

Nowadays, extraction from mines containing heavy metals such as (Pb) and the use of these metals in various industries have caused pollution in the wastewater system. Pollution by this group of pollutants has many dangers and harms to the environment of the region and humans. The use of natural adsorbents such as zeolites helps a lot in absorbing this group of pollutants. Zeolites are adsorbents with high absorption rates and very low risks that can be used to absorb various pollutants. In this research, using a nanocomposite prepared from zeolite, the performance of heavy metal absorption from wastewater was investigated. A type of synthetic zeolite and a type of mineral zeolite have been synthesized by multi-walled carbon nanotubes. In this research, the adsorption rate of nanocomposite was investigated by batch adsorption experiments under different conditions, such as temperature, adsorbent weight, pH, contact time with the adsorbent, and contaminant concentration, and the optimal adsorption rate was ۸۹.۶% for the mineral sample and ۹۲% for the synthesized sample. All absorption analyses were also performed using an atomic absorption spectrometer (AAS).

کلیدواژه ها:

Zeolite ، Multi-Walled Carbon Nanotubes ، AAS