METHOD FOR REMOVAL OF ORGANIC COMPOUND FROM WASTE WATER STREAM IN PROCESS FOR PRODUCTION OF (METH)ACRYLIC ACID

PROBLEM TO BE SOLVED: To provide a method for removal of organic compounds such as acetic acid from waste water streams in processes for production of (meth)acrylic acid.SOLUTION: In particular, a mixed product gas 1 comprising (meth)acrylic acid, acetic acid, propylene and acrolein is subjected to fractional absorption 2 to produce an aqueous product stream 9 comprising (meth)acrylic acid, water and acetic acid, and an absorption column off gas 8 comprising propylene and acrolein. The aqueous product stream is distilled to produce a purified (meth)acrylic acid stream 11 and a waste water stream 13, 14 comprising water and acetic acid. Then, the absorption column off gas is brought into contact with the waste water stream to transfer at least a portion of the acetic acid from the waste water stream to the absorption column off gas, and thereby producing a stripped waste water stream 17 and an enriched absorption column off gas 18.