<  Back to the Polytechnique Montréal portal

Ultrasonic Tuning of Semiconductors' Band Gap

Zahra Khani

Master's thesis (2019)

Open Access document in PolyPublie
[img]
Preview
Open Access to the full text of this document
Terms of Use: All rights reserved
Download (1MB)
Show abstract
Hide abstract

Abstract

Wastewaters are any used water from whichever combination of domestic, industrial or agricultural activities come. Wastewaters contain a wide variety of physical, chemical and biological pollutants. The concentration of pollutants varies along with the source of the wastewaters. Indeed, human activity and industrial discharges enormously contribute to the release of pollutants in water, which in turn alter the water cycle thus affecting wildlife and human health. Researchers aim at achieving more efficient wastewater treatment technologies to degrade complex pollutants. However, the efficiency of wastewater treatment depends on its nature and composition. Processes that generate hydroxyl radicals (Advanced Oxidation Processes, AOPs) are the most powerful technologies to oxidize and mineralize organic pollutants to carbon dioxide and water. AOPs include cavitation, photocatalytic oxidation, and Fenton process.

Résumé

Les eaux usées sont toutes les eaux provenant des activités domestiques, industrielles ou agricoles. Elles contiennent une grande variété de polluants physiques, chimiques et biologiques. La concentration de polluants varie en fonction de la source des eaux usées. En effet, l'activité humaine et les rejets industriels contribuent énormément au rejet des polluants dans l'eau, ce qui modifie le cycle aquatique, affectant ainsi la faune, la flore et la santé humaine. Les chercheurs visent à mettre au point des technologies de traitement des eaux usées plus efficaces pour dégrader des polluants complexes. Cependant, l'efficacité du traitement des eaux usées dépend de leur nature et leur composition. Les processus générant des radicaux hydroxyles (Advanced Oxydation Process, AOP) sont les technologies les plus puissantes pour l'oxydation et la minéralisation des polluants organiques en dioxyde de carbone et en eau. Les AOP incluent la cavitation, l'oxydation photocatalytique et le procédé de Fenton.

Department: Department of Chemical Engineering
Program: Génie chimique
Academic/Research Directors: Daria Camilla Boffito
PolyPublie URL: https://publications.polymtl.ca/3958/
Institution: Polytechnique Montréal
Date Deposited: 11 Oct 2019 11:08
Last Modified: 19 Apr 2023 12:57
Cite in APA 7: Khani, Z. (2019). Ultrasonic Tuning of Semiconductors' Band Gap [Master's thesis, Polytechnique Montréal]. PolyPublie. https://publications.polymtl.ca/3958/

Statistics

Total downloads

Downloads per month in the last year

Origin of downloads

Repository Staff Only

View Item View Item