Verfahren zur Reinigung von in einer Polymeranlage Gesammeltem Wasser

Details

Veröffentlichungs-Nr.

EP3088367

Aktenzeichen

EP15165598

Anmeldetag

29. April 2015

Veröffentlichung

31. Januar 2018

Erteilung

31. Januar 2018

Rechtsraum

EP

IPC

C02F9/02// C02F1/40C02F103/38

Abstract

The present invention is a method for treating polymer contaminated water in a polymer plant. The method comprises the steps of: (i) passing polymer contaminated water to a first separator; (ii) removing a part of contaminations from the polymer contaminated water in the first separator; (iii) establishing a stream of water from the first separator under the action of gravity to a filter having a first filter surface and a second filter surface; (iv) withdrawing a stream of purified water from the filter through the first filter surface; (v) determining the level of water in the filter; (vi) when the level of water in the filter increases above a predetermined level, withdrawing the stream of the purified water through the second filter surface; (vii) purging the first filter surface with a purge water stream to remove deposit from the first filter surface, thereby establishing a stream of waste water comprising the purge water and the deposit; (viii) passing the waste water to a bag filter for removing the deposit from the water thereby producing a recycle water stream; (ix) passing the recycle water stream to the first separator; and (x) discharging at least a part of the purified water stream to the environment.

Anmelder

Firma

Borealis AG

Land

🇦🇹 Österreich

Fachgebiete