# Commission Implementing Decision (EU) 2017/2117 of 21 November 2017 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the production of large volume organic chemicals (notified under document C(2017) 7469) (Text with EEA relevance), Division BAT 89:: In order to reduce the waste water volume and the organic load discharged to waste water treatment, BAT is to use both of the techniques given below.

Extent: E+W+S+N.I.

Technique
Description
Applicability
a.
Optimised liquid phase separation
Separation of organic and aqueous phases with appropriate design and operation (e.g. sufficient residence time, phase boundary detection and control) to prevent any entrainment of undissolved organic material
Generally applicable
b.
Reuse of water
Reuse of water, e.g. from cleaning or liquid phase separation. The extent to which water can be reused in the process depends on product quality considerations
Generally applicable

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Source: https://www.legislation.gov.uk/eudn/2017/2117/annex/division/11/division/11.2/division/BAT+89 (the official version)
Page: https://openlegislation.uk/eu-decision-2017-2117/annex/division-11/division-11.2/division-BAT+89
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.