Biosorbents: A Hope for Developing Countries for the Dye Removal from Industrial Aqueous Effluents.

Author(s) : Muhammad Jahangeer, Muhammad Afzal Qamar, Abdul Rehman, Naveed Munir, Imtiaz Mahmood Tahir, Shoukat Hussain, Syed Muhammad Ali Shah, Mehvish Ashiq, Hafiza Rameen Fatima & Haseeb Ahmad Khan

Abstract:

Objective:
To study an alternative and cheap way for the waste water treatment to remove the dyes.
Material and Methods:
Three adsorbents i.e. banana bark, rice straw and wheat straw were used without any treatment, having a particle size less than 841 micron to remove disperse blue 106 dye and reactive red 195 (C.R) dye from their aqueous solution. Experiments were performed in the batch method. All the experiments performed for various variables such as dose of the bio-adsorbent, shaking time, dye concentration, pH and nature of the bio-adsorbent under both shaking and static conditions. Percent (%) removal of each of the bio-adsorbent was estimated after every six hours for shaking condition and 24 hours for the static condition with the help of U.V visible spectrophotometer.
Results:
Banana bark proved to be the best adsorbent for Reactive red 195 dye and wheat straw for Disperse blue 106 dye. Banana bark showed best efficiency (50%-100%) for red dye as compared to the other two adsorbents and wheat straw proved to be the best adsorbent for blue dye having % removal of 40%-100% depending upon dye concentration in aqueous solution.
Conclusion:
Biosorbents are the hope for developing countries to protect the underground water and ecosystem from toxic effects of industrial effluents.

Key Words: Biosorbent, industrial effluents, pollution, dye removal, health improvement