Application of Hydrogen Peroxide to the Control of  Eutrophic Lake Systems in Laboratory Assays

Bauzá, Letizia; Aguilera, Anabella; Echenique, Ricardo Omar; Andrinolo, Darı́o; Giannuzzi, Leda

doi:10.3390/toxins6092657

Cited by 45 publications

(23 citation statements)

References 34 publications

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“…Hydrogen peroxide is effective in freshwater at low concentration (≈3 mg L −1 ) (Bauzá et al . ). Microcystis toxins (microcystins) are considered hepatotoxic, whereas anatoxin‐a (produced by Anabaena spp.)…”

Section: Chemical and Physical–chemical Methodsmentioning

confidence: 97%

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A critical review on control methods for harmful algal blooms

Gallardo

Astuya-Villalón

Llanos-Rivera

et al. 2018

Reviews in Aquaculture

104

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The impacts of harmful algal blooms on human health, tourism, fisheries and ecosystems have increased in recent decades. Eutrophication and the feared climate change are believed to further challenge authorities and those whose activity depends on coastal resources. While in most of the affected countries, regulatory steps have been taken to protect consumers of contaminated food, there has been an unequal focus on management systems. Some countries such as EEUU and Canada have focused on monitoring and prediction programs, whereas others (e.g. Korea, China) have relied on direct control of blooms in the sea. Here, we review current control methods for HABs including their fundamentals and the last scientific advances. A thorough revision of all considered approaches so far has been included. Ecological studies of the impact of the countermeasures were also considered.

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Section: Chemical and Physical–chemical Methodsmentioning

confidence: 97%

“…As advantage over other algicidals, hydrogen peroxide destroys microcystins helped by natural UV radiation (Bauzá et al . ). Similarly, photocatalytic degradation of microcystins is also possible (Shephard et al .…”

Section: Chemical and Physical–chemical Methodsmentioning

confidence: 97%

A critical review on control methods for harmful algal blooms

Gallardo

Astuya-Villalón

Llanos-Rivera

et al. 2018

Reviews in Aquaculture

104

View full text Add to dashboard Cite

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“…However, many studies only examined H 2 O 2 toxicity in the MC-producing species from Planktothrix and Microcystis genera. Much less is known on the interspecific variation across other common bloom-forming and potentially toxic cyanobacteria from the genera Dolichospermum, Aphanizomenon, or Raphidiopsis, however a wide range of H 2 O 2 toxicity thresholds against these cyanobacteria have been documented [22][23][24]. The current study has shown different responses of cyanobacteria to the treatment, depending on the stage of the experiment.…”

Section: Treatment In Lake Ludošmentioning

confidence: 60%

The Effect of a Combined Hydrogen Peroxide-MlrA Treatment on the Phytoplankton Community and Microcystin Concentrations in a Mesocosm Experiment in Lake Ludoš

Dziga

Tokodi

Drobac

et al. 2019

Toxins

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Harmful cyanobacteria and their toxic metabolites constitute a big challenge for the production of safe drinking water. Microcystins (MC), chemically stable hepatotoxic heptapeptides, have often been involved in cyanobacterial poisoning incidents. A desirable solution for cyanobacterial management in lakes and ponds would eliminate both excess cyanobacteria and the MC that they potentially produce and release upon lysis. Hydrogen peroxide (H 2 O 2 ) has recently been advocated as an efficient means of lysing cyanobacteria in lakes and ponds, however H 2 O 2 (at least when used at typical concentrations) cannot degrade MC in environmental waters. Therefore, mesocosm experiments combining the cyanobacteria-lysing effect of H 2 O 2 and the MC-degrading capacity of the enzyme MlrA were set up in the highly eutrophic Lake Ludoš (Serbia). The H 2 O 2 treatment decreased the abundance of the dominant cyanobacterial taxa Limnothrix sp., Aphanizomenon flos-aquae, and Planktothrix agardhii. The intracellular concentration of MC was reduced/eliminated by H 2 O 2 , yet the reduction of the extracellular MC could only be accomplished by supplementation with MlrA. However, as H 2 O 2 was found to induce the expression of mcyB and mcyE genes, which are involved in MC biosynthesis, the use of H 2 O 2 as a safe cyanobacteriocide still requires further investigation. In conclusion, the experiments showed that the combined use of H 2 O 2 and MlrA is promising in the elimination of both excess cyanobacteria and their MC in environmental waters. Key Contribution:A new concept has been proposed for rapid and efficient mitigation of MC-producing cyanobacterial biomass through a combined treatment with H 2 O 2 and microcystinase (MlrA).

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“…Nevertheless, the use of copper sulfate is not the only option for water quality management (Beaulieu et al, 2005;Huh and Ahn, 2017). Other effective methods for the control of algae and cyanobacteria include the use of hydrogen peroxide, which is associated with fewer longterm ecotoxicological impacts (Matthijs et al, 2012;Bauzá et al, 2014;Lürling et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Impact of copper sulfate application at an urban Brazilian reservoir: A geostatistical and ecotoxicological approach

Leal

Moschini‐Carlos

López-Doval

et al. 2018

Science of The Total Environment

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A landscape ecotoxicology approach was used to assess the spatial distribution of copper in the recent bottom sediment (surficial sediment) of a Brazilian subtropical reservoir (the Guarapiranga reservoir) and its potential ecotoxicological impacts on the reservoir ecosystem and the local society. We discuss the policies and procedures that have been employed for the management of this reservoir over the past four decades. Spatial heterogeneity in the reservoir was evaluated by means of sampling design and statistical analysis based on kriging spatial interpolation. The sediment copper concentrations have been converted into qualitative categories in order to interpret the reservoir quality and the impacts of management policies. This conversion followed the Canadian Water Framework Directive (WFD) ecotoxicological concentration levels approach, employing sediment quality guidelines (SQGs). The SQG values were applied as the copper concentration thresholds for quantitative-qualitative conversion of data for the surficial sediment of the Guarapiranga. The SQGs used were as follows: a) interim sediment quality guideline (ISQG), b) probable effect level (PEL), and c) regional reference value (RRV). The quantitative results showed that the spatial distribution of copper in the recent bottom sediment reflected the reservoir's management policy and the copper application protocol, and that the copper concentrations varied considerably, ranging from virtually-zero to in excess of 3g/kg. The qualitative results demonstrated that the recent bottom sediment was predominantly in a bad or very bad condition, and could therefore have impacts on the local society and the ecosystem. It could be concluded that the management policy for this reservoir was mainly determined by the desire to minimize short-term costs, disregarding long-term socioeconomic and environmental consequences.

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Application of Hydrogen Peroxide to the Control of Eutrophic Lake Systems in Laboratory Assays

Cited by 45 publications

References 34 publications

A critical review on control methods for harmful algal blooms

A critical review on control methods for harmful algal blooms

The Effect of a Combined Hydrogen Peroxide-MlrA Treatment on the Phytoplankton Community and Microcystin Concentrations in a Mesocosm Experiment in Lake Ludoš

Impact of copper sulfate application at an urban Brazilian reservoir: A geostatistical and ecotoxicological approach

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