Our retention pond in our neighborhood has a lot of algae and problematic plant growth due to the surrounding farms and lawn runoff, so we're experimenting with a floating island to pull nutrients out before they can cause problems. This will also provide some interesting flowering plants, and more fish habitats.
Will be an interesting experiment to see what survives and what does poorly.
Zinnias, sunflowers, marigolds, and a few others are in net pots, inserted into cutouts in EVA foam mats.
Not less steps; this is the OG aquaponics method and has been around for hundreds of years. Everything else is just refining for efficiency and space limitations.
That was my first thought, along the lines of 'how much plant mass will you need to significantly reduce N in the water, enough so that it has sufficient reduction of unwanted photosynthesis'? I look forward to reading of your progress.
Love it, but we're not as concerned about metals or toxins as we are about excess nutrients.
The papers I listed have plants that they've been using for their remediation, and we're following those lists. I know some of the researchers on those projects, and we'll modify our plant list based on any changes in their recommendations.
Cannabis would pull out excess nutrients as well, I’m just saying there’s probably other options if you wanted to do a little research, but apparently no one wanted to discuss this topic.
Yep, hemp has been long known to rejuvenate soil. It's been used for decades (or more) as a rotation crop to restore soil after something like corn or wheat sucks up all of the nutrients.
For soil rejuvenation you mulch it back into the soil for compost I thought, you can’t do that if you’re using it for remediation to pull stuff out of the soil as you would be just be putting it right back in again.