In the aftermath of Kerala, India, floods, videos are circulating advising people to buy cheap Sodium Polyacrylate and apply it to the layer of mud or standing water deposited. How good/bad is this advice?
The videos say
sprinkle a small amount of the dry on mud and water and you will get a easily movable solid paste. You can use 1 kilogram to remove 1000 kilogram of mud and water. It is perfectly safe as its used in common, even skin-contact products like diapers and sanitary napkins.
Floors here are usually tile and walls are plastered and painted brick.
From my searches, I saw it could leave floors and outdoors a slippery mess and clog drains and ditches further. And letting loose large amounts on the environment seems bad.
If the powder is inhaled, it can irritate the lungs–but that’s not generally a concern. When it comes in contact with a large amount of spilled water in an area, it can cause the area to become very slippery. If it enters sewer or drainage systems in large quantities, it can cause serious clogging and should be dealt with immediately.
A video in English: https://www.youtube.com/watch?v=2fR_7jH5fys