Application of marine algae separate and in combination with natural zeolite in dye adsorption from wastewater ; A review

Document Type : Review Articles

Authors

1 basic science, faculty of dentistry, nahda university in beni-suef NUB

2 Department of Chemistry, Faculty of Science, Beni-Suef University

3 1Nanophotonics and Applications Lab, Physics Department, Faculty of Science, Beni-Suef University

4 Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt

5 Chemistry department ,Nahdauniversity,Cairo,beni-suef

6 Department of Chemical Engineering, Faculty of Engineering, Islamic University of Madinah, Madinah, Saudi Arabia

7 Department of Chemistry, University College in Al-Jamoum, Umm Al-Qura University, Makkah, Saudi Arabia

Abstract

Industrial wastewater is obtained from industrial activities that include any solids that become useless during the manufacturing process. These wastes are considered as international green problems so significant solutions must be taken to confront these problems and reduce their environmental burden and effect. Removal of dyes from industrial wastes using zeolite and marine algae by adsorption technique has a lot of advantages as the zero cost, obtainability, high effectiveness, and ecological alternative source. Dyes adsorption onto zeolite and marine algae surfaces is a complicated method that affected by numerous factors like contact time, initial dye concentration, solution pH, catalyst weight and temperature
In this review, we present definition of marine algae and their classification, definition of Zeolite , industrial wastewater and their effect on the eco system, water treatment methods which include chemical, biological, Combinatorial method, nanotechnology-based and physical methods, uses of algae and natural zeolite in wastewater treatment and finally we discuss the factors that affect dyes adsorption onto zeolite and marine algae surfaces, such as contact time, temperature, solution pH and catalyst dose. The principal conclusions of this review are that the dye removal% is high In the early time of the adsorption operation but it reduce still it reaches equilibrium, Temperature negatively affects the dye adsorption method, There is a specific pH value for each catalyst, at which the optimum adsorption of dyes happens as well as adsorbent dose growth in general enhances catalytic activity because of the increase in total surface area and the total of active sites on catalyst surface. For optimizing the conditions for dye adsorption onto zeolite and marine algae, the factors that affect dye adsorption onto zeolite and marine algae surfaces should be known.

Keywords

Main Subjects


  • Receive Date: 21 August 2021
  • Revise Date: 03 February 2022
  • Accept Date: 07 February 2022
  • First Publish Date: 07 February 2022