Algal-Induced Decay and Formation of Hydrogen Peroxide in Water: Its Possible Role in Oxidation of Anilines by Algae

Zepp, Richard G.; Skurlatov, Yu. I.; Pierce, J. Thomas

doi:10.1021/bk-1987-0327.ch016

Cited by 38 publications

(29 citation statements)

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“…They also suggested that H 2 O 2 degradation follows a second order reaction in the dark. However, when exposed to sunlight, the algae may both produce and degrade H 2 O 2 [53]. In the current study, the oxidant degraded for more than 72 h, and led to the long-term low toxicity of H 2 O 2 with regard to the algae.…”

Section: Statistical Analysesmentioning

confidence: 54%

“…Mikula et al (2012) [52] observed that light (140 µmol·m −2 ·s −1~3 0.4 W·m −2 ) is a sine qua non-condition for H 2 O 2 decomposition and for its toxicity to M. aeruginosa. They also reported that in dark conditions, H 2 O 2 decomposes very slowly over 72 h. Zepp et al (1987) [53] reported that algae might have a role in natural waters for the production of H 2 O 2 . They also suggested that H 2 O 2 degradation follows a second order reaction in the dark.…”

Section: Statistical Analysesmentioning

confidence: 97%

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Impacts of Hydrogen Peroxide and Copper Sulfate on the Control of Microcystis aeruginosa and MC-LR and the Inhibition of MC-LR Degrading Bacterium Bacillus sp.

Kansole

Lin

2017

Water

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Abstract:Laboratory batch experiments were carried out to evaluate the impacts of H 2 O 2 and copper sulfate on M. aeruginosa PCC7820, microcystin-LR (MC-LR) and its degrading bacteria Bacillus sp., previously isolated from Hulupi Lake in Taiwan. The study shows that 3 mg·L −1 hydrogen peroxide removed only 9% M. aeruginosa within seven days of exposure, from an initial cell concentration of 2 × 10 6 cells/mL. With copper sulfate, a concentration of 2 mg·L −1 removed 99% M. aeruginosa cells, but showed negligible efficacy in removing 0.05 mg·L −1 MC-LR. At a higher dosage, 20 mg·L −1 H 2 O 2 led to 40% and 95% removal, respectively for MC-LR and M. aeruginosa cells. Copper sulfate and H 2 O 2 were both lethal to Bacillus sp. population, with mortality rate constants of k = 0.04 h −1 and 0.03 h −1 under 1 mg·L −1 copper sulfate and 5 mg·L −1 H 2 O 2 , respectively. H 2 O 2 is competitive in terms of cost, with a capability of degrading organic compounds with the assistance of ultraviolet (UV) light, and it may be considered as an alternative algaecide to copper sulfate in reservoirs for algae growth control.

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Section: Statistical Analysesmentioning

confidence: 54%

Section: Statistical Analysesmentioning

confidence: 97%

Impacts of Hydrogen Peroxide and Copper Sulfate on the Control of Microcystis aeruginosa and MC-LR and the Inhibition of MC-LR Degrading Bacterium Bacillus sp.

Kansole

Lin

2017

Water

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“…However, bromine species such as HOBr would have oxidized aniline, potentially leaving them unavailable to halogenate organics. In addition, aniline is known to scavenge H,O, during incubations of algae in light (Zepp et al 1987), and sufficient aniline was added (55 @I) to deplete existing H,O, (<50 nM); thus, external H,O, concentrations should have been low. Nonetheless, significant CHBr, and CH,Br, production was observed for kelp incubated with aniline after a lag period of 1.5 h (CHBr,, 20 + 8.7; CH,Br,, 21 2 2.2 ng gfwt-' d I _' SE).…”

Section: Resultsmentioning

confidence: 99%

Production of bromoform and dibromomethane by Giant Kelp: Factors affecting release and comparison to anthropogenic bromine sources

Goodwin

North

Lidstrom

1997

Limnology & Oceanography

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Macrocystis pyrifera (Giant Kelp), a dominant macroalgal species in southern California, produced I71 ng per g fresh wt (gfwt) per day of CHBr, and 48 ng gfwt-' d-' of CH,Br, during laboratory incubations of whole blades. Comparable rates were measured during in situ incubations 01 intact fronds. Release of CHBr, and CH,Br, by M. pyr$eru was affected by light and algal photosynthetic activity, suggesting that environmental factors influencing kelp physiology can affect halomethane release to the atmosphere. Data from H,O, additions suggest that brominated methane production during darkness is limited by bromide oxidant supply. A bromine budget constructed for a region of southern California indicated that bromine emitted from the use of CH,Br as a fumigant (1 X 1 Ox g BI yr -I) dominates macroalgal sources (3 X 10" g Br yr-I). Global projections, however, suggest that combined emissions of marine algae (including microalgac) contribute substantial amounts of bromine to the global cycle, perhaps on the same order of magnitude as anthropogenic sources.

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“…For example, the decay of H 2 O 2 in cultures of various freshwater algae had a median half-life of just 1.5 h (Zepp et al 1992). In unfiltered freshwaters incubated in the dark, the half-life of H 2 O 2 was also on the order of hours, whereas the rates of decay in filtered controls were at least an order of magnitude slower (Cooper and Zepp 1990;Richard et al 2007).…”

mentioning

confidence: 99%

Hydrogen peroxide dynamics in an agricultural headwater stream: Evidence for significant nonphotochemical production

Dixon

Vermilyea

Scott

et al. 2013

Limnology & Oceanography

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Hydrogen peroxide (H 2 O 2 ) plays key roles in aquatic systems, including metal redox cycling and degradation of organic matter into bioavailable forms. Abiotic photoproduction, via photo-oxidation of chromophoric dissolved organic matter, has generally been assumed to be the most important source of H 2 O 2 to freshwater systems in the daytime. However, the significance of other H 2 O 2 sources has not been previously examined in situ. In this study, isotopically labeled H 2 O 2 (H 2 18 O 2 ) was added to in-stream mesocosms exposed to light and dark periods. By measuring total H 2 O 2 and H 2 18 O 2 in tandem, we inferred absolute rates of H 2 O 2 production and decay, which occurred simultaneously. Abiotic photoproduction rates were measured independently by exposing filtered samples to sunlight. Even in these shallow systems, total production rates greatly exceeded rates of abiotic photoproduction, and other sources of H 2 O 2 , most likely biological production, were the dominant control on the H 2 O 2 budget. Thus, H 2 O 2 and its precursor superoxide (O { 2 ) may play a greater role in biogeochemical processes, especially in the absence of light, than previously thought.

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Algal-Induced Decay and Formation of Hydrogen Peroxide in Water: Its Possible Role in Oxidation of Anilines by Algae

Cited by 38 publications

References 0 publications

Impacts of Hydrogen Peroxide and Copper Sulfate on the Control of Microcystis aeruginosa and MC-LR and the Inhibition of MC-LR Degrading Bacterium Bacillus sp.

Impacts of Hydrogen Peroxide and Copper Sulfate on the Control of Microcystis aeruginosa and MC-LR and the Inhibition of MC-LR Degrading Bacterium Bacillus sp.

Production of bromoform and dibromomethane by Giant Kelp: Factors affecting release and comparison to anthropogenic bromine sources

Hydrogen peroxide dynamics in an agricultural headwater stream: Evidence for significant nonphotochemical production

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