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Investigation of the Biosorption of Lead (II) from Squeous Solutions using Algae Padina australis
Nazanin Keshvadi Mrs1 , Maryam Mohammadiroozbahani PhD 2
1- Department of environment pollution , Ahvaz Branch, Islamic Azad University, Ahvaz , Iran
2- Department of environment pollution , Ahvaz Branch, Islamic Azad University, Ahvaz , Iran , Mmohammadiroozbahani@yahoo.com
Abstract:   (175 Views)
Abstract
Introduction  and Aim
Lead  is one of the most important metal ions that has many disadvantages for the environment and  organisms, especially humans. Lead is  into water resources through the waste products of various industries. One of the most effective methods for causing lead from aqueous solutions is the use of biological adsorbents. The purpose of this study was to investigate the biological absorption of lead (II) from aqueous solutions using Padina algae.
materials and methods:
Padina algae collected from Bushehr coastal  were dried in an oven at 70 ° C for 24 hours, then adsorption experiments were carried out at pH, contact time, different amounts of biomass and initial concentration of the solution and  Isotherm  also .
Results:
 The results showed that the removal efficiency of lead ion on the bio-absorbent Padina increased with increasing contact time and Biosorbent  dose and decreased with increasing initial concentration of the solution. It also increases the removal efficiency by increasing the pH and finally reaches the maximum at pH = 6. The data obtained from the study of isotherm adsorption showed that the mechanism of adsorption of lead ion (II) to the bio-absorbent of the Padina  follows well Langmuir isotherm.
Conclusion:
 Padian  biomass can be used as an adsorbent for the removal of lead ions (II) from aqueous solutions as a cheap absorbent and can be prepared under various conditions.
 
key words:
bio-absorbent, Lead  (II), Biosorption, Padina  algae
 
Keywords: bio-absorbent, Lead (II), Biosorption, Padina algae
     
Type of Study: Orginal Article | Subject: Environmental Health
Received: 2018/09/11 | Revised: 2020/04/17 | Accepted: 2020/06/20 | ePublished ahead of print: 2021/01/23
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