Algal blooms, particularly those caused by Microcystis aeruginosa, present an escalating threat to water quality across Australia, New Zealand, and globally. These blooms, often triggered by nutrient-rich waters and warm temperatures, can produce toxins harmful to aquatic life, ecosystems, and even human health.
Redox is proud to offer RedeGuard, an innovative, environmentally responsible solution to this growing issue. Currently available exclusively in New Zealand, RedeGuard is pending regulatory approval for use in Australia.
Understanding the Problem
Cyanobacteria, commonly referred to as blue-green algae, are natural inhabitants of many freshwater environments. Under favourable conditions, species such as Microcystis can grow rapidly, forming dense surface accumulations that reduce water quality and dissolved oxygen levels, thereby severely disrupting aquatic ecosystems.
Of particular concern is the toxin-producing Microcystis, known for generating hepatotoxic compounds called microcystins. These potent monocyclic peptides pose a substantial risk to drinking water supplies, recreational water bodies, aquaculture, and biodiversity. Conventional mitigation strategies such as chlorination, UV irradiation, and copper sulphate treatment while effective in the short term, often exhibit drawbacks including non-selectivity, bioaccumulation, and collateral damage to beneficial aquatic organisms.
The RedeGuard Advantage
RedeGuard represents a next-generation algaecide that combines efficacy with ecological compatibility. Laboratory and field evaluations have demonstrated RedeGuard’s capacity to inhibit M. aeruginosa proliferation through a multi-mechanistic mode of action. Its key benefits include:
- Rapid Onset of Action: RedeGuard significantly reduces algal cell density within 48 to 72 hours.
- Environmentally Degradable: Its active constituents degrade rapidly in aquatic environments, mitigating residual ecological burden.
- Selective Targeting: It exhibits low toxicity toward non-target aquatic flora and fauna, supporting ecological resilience.
- Low Effective Dosage: Potent at concentrations as low as 10–16 ppm for active control, with maintenance efficacy observed from 2–10 ppm.
Mechanistically, RedeGuard induces oxidative stress within cyanobacterial cells, compromising membrane integrity and impairing photosynthetic pathways thereby halting bloom progression without triggering secondary pollution.
Easy Application
RedeGuard is engineered for practical field application. It is administered by direct dosing into affected water bodies, preferably in zones of active circulation to ensure even dispersion. Best practices include:
- Control dosing: 10–16 litres per 1,000 kilolitres (10–16 ppm)
- Maintenance dosing: 2–10 litres per 1,000 kilolitres (2–10 ppm)
- Repeat dosing: Optional re-application after 48 hours in high-burden environments
To maximise treatment efficacy, users should temporarily restrict water turnover, monitor dissolved oxygen (DO) and pH, and employ supplementary aeration where feasible.
Proven Results
Third-party performance validation confirms RedeGuard’s effectiveness. Controlled trials demonstrate statistically significant reductions in M. aeruginosa populations within 72 hours of application.
Supplementary data show marked improvement in water quality metrics, including the suppression of odour-causing metabolites like geosmin and stabilisation of pH fluctuations, which are common byproducts of bloom activity.
A Smarter, Greener Approach to Algae Control
RedeGuard exemplifies Redox’s dedication to sustainable, science-led solutions in water treatment. For environmental managers, municipal authorities, aquaculture operators, and regulatory agencies seeking reliable mitigation of harmful cyanobacterial blooms, RedeGuard delivers a compelling blend of performance and ecological stewardship.
To learn more or enquire about availability, contact Redox today and explore how RedeGuard can support your environmental management objectives.