Cleaning up a polyacrylamide spill safely
Polyacrylamide is not very hazardous, but a wet spill makes a floor dangerously slippery. How to clean dry and wet spills, and what to wear.
Why spills matter
The main risk with polyelectrolyte is underfoot, not in the air. Add a little water to a powder spill and it turns into a clear, slick gel that is hard to see and very easy to slip on.
Dry powder: keep it dry
Do not hose a powder spill. Sweep or vacuum it up dry, put it in a closed bag or drum, and label it. Then wipe the area with a damp cloth to pick up the fine dust.
Wet spills and solution leaks
Stop the leak first. Cover the liquid with sand, sawdust or another absorbent, let it soak up, then scrape it into a container. Rinse the remaining film with plenty of water and squeegee it away. Keep people off the area until it is dry.
What to wear
Gloves and safety glasses for handling and clean-up. A dust mask when tipping or sweeping powder, as fine dust irritates the eyes and throat. Non-slip footwear around make-up tanks. The product SDS gives the full guidance for each grade.
Where the waste goes
Small quantities go with the plant's sludge or solid waste, following your consent conditions. Do not wash large amounts of concentrated polymer into drains or the ETP inlet in one go.
Preventing the next one
Keep a spill kit (absorbent, scraper, bags, gloves) next to the make-up area, fit a lip or bund around the tank, and use a funnel or eductor rather than tipping bags by hand.
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