Modulating the Effect of Iron and Total Organic Carbon on the Efficiency of a Hydrogen Peroxide-Based Algaecide for Suppressing Cyanobacteria

Crafton, Elizabeth A.; Cutright, Teresa J.; Bishop, West M.; Ott, Donald

doi:10.1007/s11270-019-4112-2

Cited by 10 publications

(3 citation statements)

References 52 publications

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“…Crafton et al [48] investigated the effects of the SP formulation PAK ® 27, finding that 6.2 mg•L −1 HP equivalent led to statistically significant reductions in cyanobacterial populations and increases in the abundance of other classes of phytoplankton. Furthermore, results obtained by Kędzierska [49] showed that 20.0 mg•L −1 SP (5.5 mg•L −1 HP) of the SP formulation CYANOXIDE ® reduced cyanobacteria from 63% of the phytoplankton assemblage to less than 5% 6 days after application in a 300 L experimental tank.…”

Section: Discussionmentioning

confidence: 99%

The Effects of Sodium Percarbonate Generated Free Oxygen on Daphnia—Implications for the Management of Harmful Algal Blooms

Thoo

Siuda

Jasser

2020

Water

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Increasing frequencies and durations of harmful algal blooms are a nuisance in many aquatic ecosystems. This has led to the use of a variety of control methods to prevent their appearance or to disperse them following their establishment. Most of these methods are not selective; consequently, research into alternative selective methods has been ongoing. Reactive oxygen species generated following the addition of hydrogen peroxide have been shown to selectively target the cyanobacterial component of harmful algal blooms in experimental and field settings. This study assesses the effects of increasing concentrations of reactive oxygen species from the addition of sodium percarbonate on zooplankton in a small experimental setting using a natural plankton sample. It was found that the genus Daphnia showed moderate sensitivity to sodium percarbonate. Preliminary evidence suggests that the size of an individual may affect the probability of survival, with larger individuals having a lower likelihood of survival. Lower survival rates of large Daphnia were hypothesized to have been caused by higher relative filtration rates of larger individuals. From the zooplankton data obtained, we suggest that a safe concentration of sodium percarbonate for Daphnia individuals would be below 10.0 mg·L−1 sodium percarbonate (2.8 mg·L−1 hydrogen peroxide).

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Section: Discussionmentioning

confidence: 99%

The Effects of Sodium Percarbonate Generated Free Oxygen on Daphnia—Implications for the Management of Harmful Algal Blooms

Thoo

Siuda

Jasser

2020

Water

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“…The in uence of water-quality conditions on the e cacy of H 2 O 2 has started to be addressed under laboratory (Drábková et al 2007), eld mesocosm (Yang et al 2018; Buley et al 2021) and whole-lake studies (Matthijs et al 2012). As a reactive oxygen species (ROS), H 2 O 2 readily reacts with organic substances and metals (Crafton et al 2019;Zepp et al 1992), and may experience differing reaction rates under varying light exposures (Drábková et al 2007) and temperatures (Yazici and Deveci, 2010), therefore negatively affecting its e ciency as an algaecide when exposed to these conditions. It has also been observed that the species of cyanobacteria present in blooms in uences the effectiveness of H 2 O 2 treatments, perhaps due to morphological differences or the presence/absence of extracellular polymeric substances that may buffer against ROS (Gao et al 2015;Yang et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Complex effects of dissolved organic matter, temperature, and initial bloom density on the efficacy of hydrogen peroxide to control cyanobacteria

Buley

Gladfelter

Fernandez-Figueroa

et al. 2023

Environ Sci Pollut Res

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Harmful cyanobacterial blooms plague reservoirs and lakes used for a variety of purposes. Chemical controls are frequently used to mitigate the occurrence of cyanobacterial blooms given that many are fast-acting and effective at reducing cyanobacterial abundance. Recent research has identi ed hydrogen peroxide (H 2 O 2 ) as an environmentally-friendly alternative to algaecides that have typically been used, such as copper sulfate. To build on past studies, these experiments sought to further understand how well H 2 O 2 treatments reduce cyanobacteria in complex eutrophic conditions. We assessed the effectiveness of H 2 O 2 (at treatments of 2-16 mg L -1 ) under varying environmental conditions in a controlled laboratory setting, including (1) dissolved organic matter (DOM) concentrations (humic acid; 0 -60 mg L -1 ), ( 2) temperatures (20, 25, and 32 °C), and (3) initial algal biomass (82 -371 µg L -1 as chlorophyll). In contrast to our expectations, neither DOM concentration nor temperature meaningfully impacted the effectiveness of H 2 O 2 at reducing cyanobacteria. However, initial algal biomass as well as H 2 O 2 treatment greatly in uenced the effectiveness of the algaecide. Across all experiments, H 2 O 2 concentrations of 0.03 -0.12 mg H 2 O 2 L -1 /µg chlorophyll L -1 were effective at signi cantly reducing cyanobacteria. Thus, water resource managers are encouraged to consider how ambient levels of algal biomass may affect the ability of H 2 O 2 to control algal blooms prior to treatment. Highlights 1. The effect of hydrogen peroxide on cyanobacteria was assessed under varying conditions.2. Neither dissolved organic matter concentration nor temperature meaningfully reduced the e cacy of hydrogen peroxide.3. Initial algal biomass negatively in uenced the e cacy of hydrogen peroxide.

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“…Because of these concerns, the state of Florida does not permit the use of copperbased aquatic algaecides on public bodies of water. As a result, peroxidebased algaecides with documented cHAB efficacy have received interest as an alternative management tool (Lembi 2014;Matthijs et al 2012;Netherland 2014;Crafton et al 2019). Peroxide-based algaecides pose a negligible nontarget species toxicity threat; can be selective against cHABs, restoring beneficial phytoplankton populations; require shortexposure duration for control; and rapidly dissipate with no water-use restrictions (for example, drinking, recreation, irrigation, livestock watering) (Barrington, Reichwaldt, and Ghadouani 2013;Bauza et al 2014;Drábková, Admiraal, and Maršálek 2006;Lusty and Gobler 2020;Reichwaldt et al 2012;SePRO 2018;Weenink et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Field demonstration of a peroxide-based algaecide for harmful algal bloom control in Lake Okeechobee

Sperry,

Sartain,

Getsinger

et al. 2023

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Large-scale cyanobacterial harmful algal blooms (cHABs) in Lake Okeechobee, Florida, and connected waterways routinely impair water resources. This study conducted a field demonstration of a peroxide-based algaecide in 2020 in the Pahokee Marina on Lake Okeechobee to evaluate the algaecide’s suitability for near-future operational implementation. Within minutes of treatment, rapid oxidation of cHAB cells occurred in the form of bleaching and cell lysis. On average, levels in the treatment area decreased by 4 hours after treatment (HAT) and remained low out to 24 HAT: chlorophyll decreased 87%, phycocyanin decreased 85%, total microcystin levels decreased from 50 μg L−1 to 4 μg L⁻¹ at 4 HAT and then increased to 11 μg L⁻¹ by 24 HAT, hydrogen peroxide concentrations averaged 6.1 mg L⁻¹ 0.5 HAT and then dropped below detection limits by 24 HAT, and Microcystis spp. cell densities decreased at 4 HAT in all but four sampling sites. However, inflows of cHAB-infested lake water in some portions of the treatment area resulted in lack of control at these sites. Because of their vulnerability to influxes of cHABs from surrounding nontreated waters via water-exchange processes driven by wind-induced surface currents, future applications must therefore consider treatment area size.

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Modulating the Effect of Iron and Total Organic Carbon on the Efficiency of a Hydrogen Peroxide-Based Algaecide for Suppressing Cyanobacteria

Cited by 10 publications

References 52 publications

The Effects of Sodium Percarbonate Generated Free Oxygen on Daphnia—Implications for the Management of Harmful Algal Blooms

The Effects of Sodium Percarbonate Generated Free Oxygen on Daphnia—Implications for the Management of Harmful Algal Blooms

Complex effects of dissolved organic matter, temperature, and initial bloom density on the efficacy of hydrogen peroxide to control cyanobacteria

Field demonstration of a peroxide-based algaecide for harmful algal bloom control in Lake Okeechobee

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