ORIGINAL RESEARCH
Effects of Different Parameters on Photocatalytic Oxidation of Slaughterhouse Wastewater Using TiO2 and Silver-Doped TiO2 Nanoparticles
 
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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
Online publish date: 2018-12-27
Publish date: 2019-02-18
Submission date: 2018-03-12
Final revision date: 2018-04-27
Acceptance date: 2018-04-29
 
Pol. J. Environ. Stud. 2019;28(3):1591–1600
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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.
eISSN:2083-5906
ISSN:1230-1485