At present the best advice we’ve received regarding disposal of waste ink collected from desktop inkjet printers (water based) is to pour the waste ink into an old container that can be sealed and placed in the household bin/garbage-can or similar.
Some common sense but important points to note:
- Don’t put the ink in a container that could be mistaken for a drink
- Make sure the top is secured before disposal
- Put the container in the outside bin
- Dispose of the container immediately
If/when we get more specific advice we’ll add it here.