Prevent accumulation of Mn, Fe, H2S and methyl-Hg

During periods of thermal stratification, bottom waters can go anoxic. The settling and decomposition of cyanobacteria blooms can deplete bottom waters of dissolved oxygen (DO), thus allowing soluble manganese (Mn), iron (Fe) and hydrogen sulfide (H2S) to diffuse up the water column and be brought into a WTP. Iron and manganese can give a metallic taste, as well as discolor the water. Hydrogen sulfide gives the water a “rotten egg” odour as this gas is released to the atmosphere. Soluble phosphorus and highly toxic methyl mercury (methyl-Hg) can also accumulate in anoxic bottom waters.

Setting the SolarBee hose deep for hypolimnetic circulation has shown effective at addressing these water quality issues. Hypolimnetic oxygenation involves bringing up oxygen-poor water to the surface for natural re-oxygenation via transport across the air-water interface and from algal photosynthesis. At the same time, oxygen-rich water gets transported downward to the depth of the SolarBee intake hose through displacement. This method of deployment is most frequently used in drinking water supply reservoirs to prevent taste and odour problems. Keeping deep waters below the level of the intake pipe to the water treatment plant well oxygenated effectively prevents odour-causing Mn and H2S intrusions into the plant.

Improved dissolved ocygen(DO) and pH levels

Prevent Fish Kill

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