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Drops the word "biobeads", refuses to elaborate on what that means. Such shit journalism. They're small plastic beads uses to provide a large surface area for
by georgefrowny 1y ago
Drops the word "biobeads", refuses to elaborate on what that means. Such shit journalism.
They're small plastic beads uses to provide a large surface area for biological decomposition of waste in wastewater plants as water flows though big mesh tanks full of them. In doing so they become contaminated with various biological and chemical toxins.
- SideburnsOfDoom 1y agoI have heard of ponds being filtered that way using a basket of pebbles. I suppose that there are some advantages of using plastic instead of rocks for this - for one thing it's lighter in bulk. But well, here is the disadvantage. A spill of small rocks isn't usually an environmental issue.
- georgefrowny 1y agoApparently that they float is important to the process. I guess so they don't need to dig them out with an excavator or some mechanism and can just float them out to be changed.