The sludgy, salty sediment that's left is discharged back into the ocean.

NPR: California Town Votes on Huge Desalinization Plant

The result, after several days, was a sludgy brown stain at the bottom of the reaction vessel a stain that proved to contain amino acids.

ECONOMIST: Stanley Miller

Australian outfit No Anchor understand how to make sinister noise-rock that sounds great: Their 2011 album, Real Pain Supernova, includes slabs of distorted bass notes that rumble and quake, sludgy riffs played at a crawling pace, shrieks of feedback that shoot skyward, and harrowing vocals punctuated with shrill wailing.

FORBES: Cheap Tunes: No Anchor's 'The Golden Bridge'