blowdown

in atmospheric chemistry
https://doi.org/10.1351/goldbook.B00687
@[email protected] purged during refinery shutdowns and startups which should be piped to storage systems for safe venting, flaring or @[email protected] This term also applies to the purging of water in boiler operation, and serves in the control of dissolved solids in the boiler water.
Source:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2176 [Terms] [Paper]