The mechanism of the Azolla plant in reducing dissolved pollutants from the nutrients and heavy elements, its production, harvest times and the nutritional value in adopting it to feed the fish.
If you feed fish w it, that metal will travel right up the food chain. We learned that from the Hg process in chlor-alkali production. Hg does not go away. In many locations no fishing was allowed until those generations died (many generations) and the Hg sunk deep into the soil at the bottom of the lake/pond/river/bay et al. Now, dredging of those areas is avoided.
I think we should identify native species and once they have absorbed metal, burn them and recover the metal - whether of value or not but prevent it migrating back into the environment as a refined metal.
Your work is interesting.
Thank you Daniel Shannon for your important question and the answer is twofold
1- The nutrients, such as nitrates, ammonia, and phosphorus that are soluble in animal water wastes and food processing plants, are recycled to sound and contribute to building the plant's biomass and are used to feed agricultural animals.
2- When using water plants in contaminated processing plants, the results revive heavy elements such as batteries manufacturing factories, then the growing plant on this water is not suitable for animal feeding because there are heavy elements that negatively affect the food chain, but it is used as a vegetable fertilizer to forest and ornament trees.
Thank you so much
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