All Outputs (32)

'All in one' photo-reactor pod containing TiO2 coated glass beads and LEDs for continuous photocatalytic destruction of cyanotoxins in water. (2020)
Journal Article
GUNARATNE, H.Q.N., PESTANA, C.J., SKILLEN, N., HUI, J., SARAVANAN, S., EDWARDS, C., IRVINE, J.T.S., ROBERTSON, P.K.J. and LAWTON, L.A. 2020. ‘All in one’ photo-reactor pod containing TiO2 coated glass beads and LEDs for continuous photocatalytic destruction of cyanotoxins in water. Environmental science: water research and technology [online], 6(4), pages 945-950. Available from: https://doi.org/10.1039/c9ew00711c

Blooms of blue-green algae (cyanobacteria) in water reservoirs frequently produce highly toxic secondary metabolites including microcystins which have resulted in both human and animal fatalities. To tackle this global problem, we present here a viab... Read More about 'All in one' photo-reactor pod containing TiO2 coated glass beads and LEDs for continuous photocatalytic destruction of cyanotoxins in water..

Modeling phosphorus exchange between bottom sediment and water in tropical semiarid reservoirs. (2019)
Journal Article
MOURA, D.S., LIMA NETO, I.E., CLEMENTE, A., OLIVEIRA, S., PESTANA, C.J., APARECIDA DE MELO, M. and CAPELO-NETO, J. 2020. Modeling phosphorus exchange between bottom sediment and water in tropical semiarid reservoirs. Chemosphere [online], 246, article ID 125686. Available from: https://doi.org/10.1016/j.chemosphere.2019.125686

This study investigated phosphorus (P) dynamics in the sediment-water interface of three distinct reservoirs located in a tropical semiarid region. Sequential chemical fractioning of the P content in the sediment and controlled experiments of the sed... Read More about Modeling phosphorus exchange between bottom sediment and water in tropical semiarid reservoirs..

Removal of microcystins from a waste stabilisation lagoon: evaluation of a packed-bed continuous flow TiO2 reactor. (2019)
Journal Article
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

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... Read More about Removal of microcystins from a waste stabilisation lagoon: evaluation of a packed-bed continuous flow TiO2 reactor..

Trends in crop reference evapotranspiration and climatological variables across Ceará state: Brazil. (2019)
Journal Article
PAULINO, V.E.N., STUDART, T.M.C., CAMPOS, J.N.B., PESTANA, C.J., LUNA, R.M., ALVES, J.M.B. 2019. Trends in crop reference evapotranspiration and climatological variables across Ceará state: Brazil. Revista Brasileira de meteorologia [online], 34(1), pages 79-88. Available from: https://doi.org/10.1590/0102-7786334017

Irrigation has a substantial share in total world water demand. At the global level, the withdrawal ratio for agriculture is 69 percent. Irrigation is necessary to compensate evapotranspiration (ET) deficit due to insufficient precipitation. Knowing... Read More about Trends in crop reference evapotranspiration and climatological variables across Ceará state: Brazil..

The effect of water treatment unit processes on cyanobacterial trichome integrity. (2018)
Journal Article
PESTANA, C.J., CAPELO-NETO, J., LAWTON, L., OLIVEIRA, S., CARLOTO, I. and LINHARES, H.P. 2019. The effect of water treatment unit processes on cyanobacterial trichome integrity. Science of the total environment [online], 659, pages 1403-1414. Available from: https://doi.org/10.1016/j.scitotenv.2018.12.337

Many toxic and/or noxious cyanobacteria appear in nature with a filamentous, stacked cell arrangement called trichomes. Although water treatment can be optimized to keep cyanobacterial cells intact and to avoid the release of toxic and/or noxious com... Read More about The effect of water treatment unit processes on cyanobacterial trichome integrity..

Consumer perception of water quality during an off-flavor event in Fortaleza-Brazil. (2018)
Journal Article
PESTANA, C.J., CAPELO NETO, J., BARROS, M.U.G., MENEZES, I., GÓIS, A. and SANTOS, G. 2019. Consumer perception of water quality during an off-flavor event in Fortaleza-Brazil. Aqua [online], 68(1), pages 63-73. Available from: https://doi.org/10.2166/aqua.2018.077

During a taste and odor episode (2-methylisoborneol) in a reservoir that supplies the Fortaleza Metropolitan Region, Brazil, two surveys were conducted to determine tap water usage behavior as well as the sensory sensitivity towards off-flavors of pa... Read More about Consumer perception of water quality during an off-flavor event in Fortaleza-Brazil..

Treatment challenge of a cyanobacterium Romeria elegans bloom in a South Australian wastewater treatment plant: a case study. (2016)
Journal Article
PRAPTIWI, R.A., PESTANA, C.J., SAWADE, E.T., SWAIN, N., SCHROEDER, G. and NEWCOMBE, G. 2017. Treatment challenge of a cyanobacterium Romeria elegans bloom in a South Australian wastewater treatment plant: a case study. Environmental technology [online], 38(6), 782-788. Available from: https://doi.org/10.1080/09593330.2016.1262454

A bloom of the non-toxic cyanobacterium Romeria elegans in waste stabilisation ponds (WSPs) within Angaston waste water treatment plant (WWTP) has posed an unprecedented treatment challenge for the local water utility. The water from the WSPs is chlo... Read More about Treatment challenge of a cyanobacterium Romeria elegans bloom in a South Australian wastewater treatment plant: a case study..

Bioindicators assessing water quality and environmental impacts of water treatment plant sludge. (2016)
Journal Article
ABREU DA COSTA, T.R.A., WEBER, O.B., PESTANA, C.J. and CAPELO-NETO, J. 2017. Bioindicators assessing water quality and environmental impacts of water treatment plant sludge. International journal of environment and sustainable development [online], 16(1), pages 25-42. Available from: https://doi.org/10.1504/IJESD.2017.10001350

This study had as objectives to assess water quality using macroinvertebrate communities in Gaviao artificial reservoir (Brazil), used to supply potable water to 2.5 million people, and to evaluate how these organisms responded to the discharge of wa... Read More about Bioindicators assessing water quality and environmental impacts of water treatment plant sludge..

Identification and assessment of water quality risks associated with sludge supernatant recycling in the presence of cyanobacteria. (2016)
Journal Article
DREYFUS, J., MONROLIN, Y., PESTANA, C.J., REEVE, P.J., SAWADE, E., NEWTON, K., HO, L., CHOW C.W.K. and NEWCOMBE, G. 2016. Identification and assessment of water quality risks associated with sludge supernatant recycling in the presence of cyanobacteria. Aqua [online], 65(6), pages 441-452. Available from: https://doi.org/10.2166/aqua.2016.030

This study focussed on the fate of cyanobacteria cells and associated metabolites during the sludge management processes that follow the conventional drinking water treatment train. The topic is of importance, as the release of metabolites during slu... Read More about Identification and assessment of water quality risks associated with sludge supernatant recycling in the presence of cyanobacteria..

Photocatalytic degradation of eleven microcystin variants and nodularin by TiO2 coated glass microspheres. (2015)
Journal Article
PESTANA, C.J., EDWARDS, C., PRABHU, R., ROBERTSON, P.K.J. and LAWTON, L.A. 2015. Photocatalytic degradation of eleven microcystin variants and nodularin by TiO2 coated glass microspheres. Journal of hazardous materials [online], 300, pages 347-353. Available from: https://doi.org/10.1016/j.jhazmat.2015.07.016

Microcystins and nodularin are toxic cyanobacterial secondary metabolites produced by cyanobacteria that pose a threat to human health in drinking water. Conventional water treatment methods often fail to remove these toxins. Advanced oxidation proce... Read More about Photocatalytic degradation of eleven microcystin variants and nodularin by TiO2 coated glass microspheres..

A continuous flow packed bed photocatalytic reactor for the destruction of 2-methylisoborneol and geosmin utilising pelletised TiO2. (2013)
Journal Article
PESTANA, C.J., ROBERTSON, P.K.J., EDWARDS, C., WILHELM, W., MCKENZIE, C. and LAWTON, L.A. 2014. A continuous flow packed bed photocatalytic reactor for the destruction of 2-methylisoborneol and geosmin utilising pelletised TiO2. Chemical engineering journal [online], 235, pages 293-298. Available from: https://doi.org/10.1016/j.cej.2013.09.041

Taste and odour compounds, especially geosmin (GSM) and 2-methylisoborneol (2-MIB), cause major problems in both drinking water and aquaculture industries world-wide. Aquaculture in particular has experienced significant financial losses due to the a... Read More about A continuous flow packed bed photocatalytic reactor for the destruction of 2-methylisoborneol and geosmin utilising pelletised TiO2..

Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems. (2012)
Thesis
PESTANA, C.J. 2012. Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems. Robert Gordon University, PhD thesis.

Cyanobacterial secondary metabolites can cause serious harm to animals and humans (cyanotoxins) and can have a major financial impact on the potable water and aquaculture industries (taste and odour compounds). Understanding the factors that affect c... Read More about Monitoring and regulating cyanobacterial metabolites (microcystins and geosmin) in aquatic systems..