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Impact of Photolysis and $TiO_{2}$ on Pesticides Degradation in Wastewater
| Content Provider | MDPI |
|---|---|
| Author | El-Saeid, Mohamed Alotaibi, Modhi. Alshabanat, Mashael Al-Anazy, Murefah Alharbi, Khadijah Altowyan, Abeer |
| Copyright Year | 2021 |
| Description | Pesticide residues are harmful to the environment and human and animal health even at low levels because of long-term bioaccumulation. In this study, photolysis was applied to treat three representative water samples: aqueous atrazine and dimethoate solutions as target pesticides, as well as wastewater and agriculture wastewater containing pesticide residue. It was performed using ultraviolet (UV) irradiation at two wavelengths (254 and 306 nm) with exposure times ranging from 2 to 12 h in the presence and absence of a photocatalyst to identify the optimal degradation conditions. Extraction and analyzation process were performed by the Quick Easy Cheap Effective Rugged Safe (QuEChERS) methods and gas chromatography–tandem mass spectrometry with triple quadrupole detector (GC–MSMS/TQD), respectively. Photodegradation increased with an increase in exposure time and the TiO2 catalyst was beneficial for degradation. Both selected irradiation wavelengths were effective, although the wavelength of λ = 306 nm was the most efficient. |
| Starting Page | 655 |
| e-ISSN | 20734441 |
| DOI | 10.3390/w13050655 |
| Journal | Water |
| Issue Number | 5 |
| Volume Number | 13 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-02-28 |
| Access Restriction | Open |
| Subject Keyword | Water Water Science and Technology Photolysis Pesticides Degradation Wastewater Agriculture Wastewater Tio2 |
| Content Type | Text |
| Resource Type | Article |
