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Optimized photodegradation of palm oil agroindustry waste effluent using multivalent manganese–modified black titanium dioxide
Abstract
This article presents a methodological approach to use manganese (Mn3+Mn7+)-modified black titanium dioxide (Mn/BTiO2) as a photocatalyst to optimize and improve visible-light-driven photodegradation of treated agro-industrial effluent (TPOME). A modified wet chemical process was used to prepare BTiO2. The BTiO2 was then wet impregnated with Mn and calcined at 300 °C for 1 h to produce Mn/BTiO2. The activity of Mn/BTiO2 was investigated in terms of photo-assisted elimination of chemical oxygen demand (COD), phenolic compounds (PCs), color, and total organic carbon (TOC). Using the design of experiments (DOE), the conditions of the photocatalytic process, including photocatalyst loading, Mn concentration, hydrogen peroxide (H2O2) dose, and irradiation time, were optimized. Under the optimum conditions (0.85 g/L photocatalyst loading, 0.048 mol/L H2O2 dose, 0.301 wt.% Mn concentration, and 204 min irradiation time) COD, PCs, color, and TOC removal efficiencies of 88.87%, 86.04%, 62.8%, and 84.66%, respectively, were obtained. Statistical analysis showed that the response variable’s removal from TPOME estimation had high R2 and low RMSE, MSE, MAD, MAE, and MAPE values, indicating high reliability. This study demonstrated the significant potential of the developed photocatalytic system for the treatment of waste effluent generated by the palm oil industry and other agro-industries, with the ability to simultaneously reduce a number of organic pollution indicators (OPIs).
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Authors (9)
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Rab Nawaz
-
Sajjad Haider
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Muzammil Anjum
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Adnan Haider
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Rawaiz Khan
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Muhammad Aqif
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Tahir Hanif
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Nasruulah Khan
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
no. 30,
pages 77850 - 77874,
ISSN: 0944-1344 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Nawaz R., Haider S., Anjum M., Oad V. K., Haider A., Khan R., Aqif M., Hanif T., Khan N.: Optimized photodegradation of palm oil agroindustry waste effluent using multivalent manganese–modified black titanium dioxide// ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH -Vol. 30, (2023), s.77850-77874
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s11356-023-27831-3
- Sources of funding:
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- The authors sincerely appreciate funding from Researchers Supporting Project number [RSP2023R399], King Saud University, Riyadh, Saudi Arabia.
- Verified by:
- Gdańsk University of Technology
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