Cambria's post last week about recycling in NYC had us read up more on the subject, and this was one of those questions we'd always had, but never knew the answer to...At NYC.gov, the site explains that once the paper has been hauled to the processing plant paper, it's combined with water in a huge vat. It's stirred, then dissolves into a thick liquid called "slurry". Next, the mixture is filtered where items like staples or string are caught. Finally, the pulp is dried and rolled into new paper.
photo: via Scyza/sxc