Reduction of Copper, Iron, and Lead Content in Laboratory Wastewater Using Zinc Oxide Photocatalyst under Solar Irradiation

• Autorzy: Agustina Tuty Emilia , Habiburrahman Muhammad , Amalia Farah , Arita Susila , Faizal Muhammad , Novia , Gayatri Rianyza

Identyfikatory

DOI

10.12911/22998993/152341

• Języki publikacji: EN

Abstrakty

EN

Heavy metal is a type of metal that has a high density and high toxicity when consumed by living things, especially humans. To prevent the impact of environmental pollution, optimal handling of wastewater containing heavy metals is required, including the wastewater from laboratories. This research aimed to study the effect of pH, catalyst dose, and irradiation time on the reduction of Copper (Cu), Iron (Fe), and Lead (Pb) heavy metals and their application to laboratory wastewater treatment. Among the Advanced Oxidation Processes (AOPs) methods, photocatalysis was chosen to reduce the level of Cu, Fe, and Pb heavy metals where zinc oxide (ZnO) is used as a photocatalyst and the sunlight as a light source. To determine the effect of pH, catalyst dose, and time on the reduction of heavy metal levels, firstly, this research used the synthetic wastewater containing Cu, Fe, or Pb heavy metals. On the basis of the experimental results, it is concluded that the pH value, catalyst dose, and time affect the photocatalytic process, decreasing the levels of Cu, Fe, and Pb metals. The optimum pH value obtained for Cu was at pH 7–8, for Fe it was at pH 6, and for Pb it was at pH 8; in turn, the metal removal percentages were 99.46, 99.91, and 99.70%, respectively. In the photocatalysis of synthetic wastewater, high removal percentage of more than 99% was achieved by using 0.1 g/L catalyst. The optimum decrease of metals occurred in the first 15 minutes of solar irradiation where the removal percentage was close to 100%. In this study, the application of ZnO photocatalyst under solar irradiation can reduce the heavy metals content in the laboratory wastewater by almost 100%, which meets the environmental quality standard for Cu, Fe, and Pb.

Słowa kluczowe

EN

AOPs; photocatalysis; heavy metals; sunlight; zinc oxide

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2022
• Tom: Vol. 23, nr 10
• Strony: 107--115
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Agustina Tuty Emilia

• Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Jl. Raya Palembang – Prabumulih Km. 32 Indralaya, Ogan Ilir 30662, South Sumatera, Indonesia

• https://orcid.org/0000-0002-7289-7318

autor

Habiburrahman Muhammad

• Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Jl. Raya Palembang – Prabumulih Km. 32 Indralaya, Ogan Ilir 30662, South Sumatera, Indonesia

autor

Amalia Farah

• Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Jl. Raya Palembang – Prabumulih Km. 32 Indralaya, Ogan Ilir 30662, South Sumatera, Indonesia

autor

Arita Susila

• Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Jl. Raya Palembang – Prabumulih Km. 32 Indralaya, Ogan Ilir 30662, South Sumatera, Indonesia

autor

Faizal Muhammad

• Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Jl. Raya Palembang – Prabumulih Km. 32 Indralaya, Ogan Ilir 30662, South Sumatera, Indonesia

autor

Novia

• Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Jl. Raya Palembang – Prabumulih Km. 32 Indralaya, Ogan Ilir 30662, South Sumatera, Indonesia

autor

Gayatri Rianyza

• Doctor of Phylosophy Chemical Engineering Program, Universiti Kuala Lumpur, Branch Campus Malaysian Institute of Chemical and BioEngineering Technology, Alor Gajah 78000, Melaka, Malaysia

Bibliografia

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