Carlos J. Pestana
Removal of microcystins from a waste stabilisation lagoon: evaluation of a packed-bed continuous flow TiO2 reactor.
Pestana, Carlos J.; Hobson, Peter; Robertson, Peter K.J.; Lawton, Linda A.; Newcombe, Gayle
Peter K.J. Robertson
Linda A. Lawton
Photocatalysis has been shown to successfully remove microcystins (MC) in laboratory experiments. Most research to date has been performed under ideal conditions in pure or ultrapure water. In this investigation the efficiency of photocatalysis using titanium dioxide was examined in a complex matrix (waste stabilisation lagoon water). A flow-through photocatalytic reactor was used for the photocatalytic removal of four commonly-occurring microcystin analogues (MC-YR, MC-RR, MC-LR, and MC-LA). Up to 51% removal for single MC analogues in waste lagoon water was observed. Similar removal rates were observed when a mixture of all four MC analogues was treated. Although treatment of MC-containing cyanobacterial cells of Microcystis aeruginosa resulted in no decline in cell numbers, or viability with the current reactor design and treatment regime, the photocatalytic treatment did improve the overall quality of waste lagoon water. This study demonstrates that, despite the presence of natural organic matter, the microcystins could be successfully degraded in a complex environmental matrix.
|Journal Article Type||Article|
|Publication Date||Apr 30, 2020|
|Peer Reviewed||Peer Reviewed|
|Institution Citation||PESTANA, C.J., HOBSON, P., ROBERTSON, P.K.J., LAWTON, L.A. and NEWCOMBE, G. 2020. Removal of microcystins from a waste stabilisation lagoon: evaluation of a packed-bed continuous flow TiO2 reactor. Chemosphere [online], 245, article number 125575. Available from: https://doi.org/10.1016/j.chemosphere.2019.125575|
|Keywords||Microcystins; Cyanobacteria; Photocatalysis; Titanium Dioxide; Waste water treatment|
This file is under embargo due to copyright reasons.
Contact email@example.com to request a copy for personal use.
You might also like
Daphnia magna exudates impact physiological and metabolic changes in microcystis aeruginosa.
Using cellulose polymorphs for enhanced hydrogen production from photocatalytic reforming.
The effect of water treatment unit processes on cyanobacterial trichome integrity.