Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 304, Issue -, Pages -Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2021.114236
Keywords
Photocatalysis; Advanced oxidation processes; Groundwater remediation; Hydroxyl radical; VOC mineralization
Categories
Funding
- German Federal Ministry for Economic Affairs and Energy (BMWi) through the German Federation of Industrial Research Associations (AiF) [ZF4044124SA9]
Ask authors/readers for more resources
In this study, an experimental setup was developed to apply advanced oxidation processes to real groundwater, resulting in promising degradation rates of organic pollutants. Through parameter optimization, high degradation rates were achieved without the formation of transformation products.
In the present work, a suitable experimental setup was developed to successfully apply advanced oxidation processes (AOP) to real groundwater matrices. This setup combines an O-3-bubble column reactor with a carrier bound TiO2/UV-system. The degradation of various chlorinated ethene and methane derivatives commonly found of chlorinated volatile organic compound polluted regional groundwater samples was investigated. Because of known issues within water remediation using AOP such as toxification by transformation products, this study aimed at complete mineralization of the contained organic micropollutants. Moreover, the influences of variable process parameters such as flow rate, ozone concentration, and radiation dose on process performance were statistically evaluated and discussed. Parameter optimization using a Box-Behnken experimental design resulted in very promising degradation rates. It was thus possible to achieve a degradation rate of at least 98% for cis-dichloroethene, trichloroethene and tetrachloroethene and 85% for trichloromethane without formation of transformation products. The results of this work open up the possibility of developing innovative technologies based on AOP, which can be universally applied even to challenging matrices such as groundwater.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available