Investigating the removal of heavy metals using nanoclay composite stabilized on chitosan surface
Subject Areas : Research On Surface Engineering and Nanomaterials Science
قدرت اله
موسوی ممبینی
1
(گروه محیط زیست، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران.)
خوشناز
پاینده
2
(گروه خاک شناسی، واحد اهواز، دانشگاه آزاد اسلامی ، اهواز، ایران)
لاله
رومیانی
3
(گروه شیلات، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران)
Keywords: fish powder Company wastewater, heavy metals, composite, clay nanoparticles, Chitosan,
Abstract :
This research aimed to investigate the effect of nanoclay composite stabilized on chitosan surface in removing zinc, copper, iron and aluminum metals from fish meal Company effluent in 2017. Chitosan was prepared from common carp (Cyprinus carpio) skin. The amount of absorption of zinc, copper, iron and aluminum metals by chitosan-clay nanocomposite was investigated in five concentrations of 0, 0.2, 0.5, 0.8 and 1 weight percentage and at contact times of 60, 120 and 180 minutes. . In two concentrations of 0.2% and 0.5% of adsorbent and in contact times of 60 and 120 minutes, zinc and aluminum metals had the highest absorption rate compared to copper and iron metals, and in contact time of 180 minutes, iron metal had the highest absorption percentage (P<0.05). In concentrations of 0.8% and 1% of adsorbent in all three times, zinc metal has the highest removal percentage and aluminum has the lowest removal percentage (P<0.05) and two metals iron and copper rank second without any significant difference were placed (P<0.05). The results of the present study showed that the amount of metal absorption by chitosan-clay nanocomposite is related to the concentration of the adsorbent and the contact time and chitosan-clay nanocomposite can be used to remove and reduce the level of heavy metal contamination in the wastewater of fishmeal and other food factories.