Project File

Removal of Chromium from ..

GIK INSTITUTE

GIK INSTITUTE

Start: Aug 01, 2017 - Ongoing

Chemical


Removal of Chromium from Tannery Waste
Advisor:
Dr. Javaid Rabbani Khan
....

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Description
Removal of Chromium from Tannery Waste

Advisor:

Dr. Javaid Rabbani Khan

Co-Advisor:

Dr Khurram Imran

Dr Sajjad Hussain
Project Story
The surfaces treated with Titanium Dioxide (TiO2), thanks to an oxidation process activated by solar or artificial light; acquire decontaminating and auto-cleaning properties through a chemical process. In these conditions, the surface transforms pollutant molecules in suspensions, such as nitrogen dioxide (NOx), sulfur dioxides, or volatile organic compounds or nitrites and nitrates. Which can easily be evacuated by rain? Photo-catalysis has a wide range of applications, which are mostly related to the removal of contaminants from the environment or a solution.
Currently, Photocatalysis is not being used commercially. We planned to create a portable, efficient and cost-effective model that is not only able to remove chromium up to Pakistan Health and Safety Standard but is able to recover a usable amount of chromium, which is a costly metal further reducing the overall cost of implementing this project in any industry.
Our Final Year Project is based this very principle. We are using a mixture of 50-50 brochure and anatase form of Titanium Dioxide as our catalyst. We are studying the usability of photocatalytic removal of chromium from Tannery waste (Tannery effluent is the largest source of chromium in rivers, lakes or seas). Using solutions of chromium prepared in the lab we are going to continuously pass a solution of chromium salt with a pH of 3 over the catalyst while UV light (540 nanometers) is continuously shined on the catalyst. The catalyst will form an insoluble salt of trivalent chromium ions which is removed from the solution via a sieve. This is a batch process because not only is it easier to achieve the correct result, it also matches well with tanning process currently in use in the industry.

Muhammad Ali Butt

Muhammad Ali Butt

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