Seasonal Change and Algae Growth

Why Algae Blooms Happen Seasonally

Wastewater stabilisation ponds and lagoons commonly experience fluctuating algal blooms throughout the year due to:

• Warm temperatures and longer daylight in spring and summer, which accelerate algal growth

• High concentrations of nutrients—particularly phosphorus and nitrogen—present from wastewater influent or runoff

• Stagnant or slow-moving water in warm months promotes photosynthesis and bloom formation

Blue Wing Outdoors

During warm seasons, algae multiply rapidly, assimilating phosphorus and nitrogen into biomass—it’s common for algae to uptake more phosphorus than needed, temporarily storing polyphosphate within their cells

Impacts on Aerated Systems & Effluent Quality

❌ Dissolved Oxygen Fluctuations

• During daylight, algae generate excess dissolved oxygen (DO) via photosynthesis

• At night or in overgrowth conditions, respiration by bacteria and algae depletes DO, leading to hypoxic or even anaerobic conditions—this can stress aquatic life or wastewater microbes

• Hypoxia can result in “dead zones” that impair treatment performance and environmental health

🚧 Increased Sludge & Poor Settling

• Algal die-off adds to the organic solids load, increasing sludge accumulation

• High solids disrupt settling in clarifiers, raising suspended solids (TSS) and impairing effluent quality

• Some systems show a seasonal surge in sludge thickness or carryover due to algae decay

🧪 Nutrient Cycling & Eutrophication

• Excess phosphorus, even in well‑operated ponds, fuels seasonal blooms, especially in summer

• Algal growth and decay cycles contribute to eutrophication downstream of treatment plants, leading to harmful downstream impacts

✅ Micro‑Genix Algae Management Solution

Micro‑Genix offers a proven microbial-based treatment tailored for seasonal algae control in wastewater ponds:

How It Works

• Natural gram-positive bacteria are applied via surface spray or reactor dosing to compete with algae for nutrients such as phosphorus and nitrogen

• These bacteria reduce surface tension, limiting algae’s ability to form blooms

• The treatment also stimulates improved dissolved oxygen management by encouraging microbial respiration over uncontrolled algal photosynthesis

Seasonal Benefits

• Effectively reduces nutrient-driven algal blooms, especially during warm months

• Supports smoother effluent management, reducing downstream phosphorus release and eutrophication risk

• Helps stabilise DO fluctuations, avoiding daily spikes and nighttime crashes

Summary of Impacts & Benefits

Seasonal Effect Impact on Pond Systems Micro-Genix Solution Outcome Warm temperature/light Rapid algal growth via nutrient uptake reduces bloom intensity. High phosphorus/nitrogen algal biomass accumulation & eutrophication risk. Nutrient competition by bacteria during DO swings: Day-night oxygen extremes impacting microbial ecology. Stabilised dissolved oxygen levels, increased organic solids.

Seasonally elevated sludge and TSS in treatment cells reduce sludge build-up and enhance settling

🧭 Why Choose Micro‑Genix

Micro‑Genix’s algae remediation product offers:

• A proactive strategy for seasonal nutrient and algal cycles

• Reduced sludge generation and improved settling

• Enhanced effluent quality and system stability

• Lower operational costs by reducing mechanical interventions and chemical dosing

Ready to Take Control of Seasonal Algal Blooms?

Connect with Micro‑Genix for algae remediation strategies tailored to aerated lagoons, stabilisation ponds, and industrial treatment systems.

📧 info@micro‑genix.com • 22 Success Street, Brisbane QLD 4000 • www.micro‑genix.com