ORIGINAL RESEARCH
Effects of Different Parameters on Photocatalytic
Oxidation of Slaughterhouse Wastewater
Using TiO2 and Silver-Doped TiO2
Nanoparticles
| 1 | College of Earth and Environmental Sciences, University of the Punjab, Lahore |
| 2 | Institute of Geology, University of the Punjab, Lahore |
CORRESPONDING AUTHOR
Kiran Bukhari
College of Earth and Environmental Sciences, University of the Punjab Lahore, Pakistan, College of Earth and Environmental Sciences, University of the Punjab, 54000 Lahore, Pakistan
College of Earth and Environmental Sciences, University of the Punjab Lahore, Pakistan, College of Earth and Environmental Sciences, University of the Punjab, 54000 Lahore, Pakistan
Submission date: 2018-03-12
Final revision date: 2018-04-27
Acceptance date: 2018-04-29
Online publication date: 2018-12-27
Publication date: 2019-02-18
Pol. J. Environ. Stud. 2019;28(3):1591–1600
KEYWORDS
TOPICS
ABSTRACT
Our study used a photocatalytic oxidation process for degrading slaughterhouse wastewater
(SHWW). Characterization of the wastewater before and after treatment with TiO2 and Ag-TiO2 in terms
of BOD, COD, and nitrogen was done. The effect of hydrogen peroxide, ozone, and various operating
parameters such as catalyst dose, pH, and reaction time on the degradation efficiency of the process were
also investigated. An increase in catalyst dose and reaction time increased process efficiency. However,
process efficiency was decreased with elevating pH. The results also revealed that the type of catalyst
and their operating parameters have significant influence on the oxidation of SHWW. Ag-TiO2-H2O2
catalyst under UV (400watt) irradiation was found to be best for the degradation of SHWW and resulted
in 95% BOD, 87% COD, and 74% nitrogen removal.
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