# Commission Implementing Decision of 28 February 2012 establishing the best available techniques (BAT) conclusions under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions for iron and steel production (notified under document C(2012) 903) (Text with EEA relevance) (2012/135/EU), Division 28

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

BAT is to treat the effluent water from sinter plants where rinsing water is used or where a wet waste gas treatment system is applied, with the exception of cooling water prior to discharge by using a combination of the following techniques:
I.. heavy metal precipitation
II.. neutralisation
III.. sand filtration.
The BAT-associated emission levels, based on a qualified random sample or a 24-hour composite sample, are:
In some cases, TOC is measured instead of COD (in order to avoid HgCl2 used in the analysis for COD). The correlation between COD and TOC should be elaborated for each sinter plant case by case. The COD/TOC ratio may vary approximately between two and four.
—
suspended solids
< 30 mg/l
—
chemical oxygen demand (COD)
< 100 mg/l
—
heavy metals
< 0,1 mg/l
(sum of arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), nickel (Ni), lead (Pb), and zinc (Zn)).

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Source: https://www.legislation.gov.uk/eudn/2012/135/annex/division/3/division/1.2/division/2/division/28 (the official version)
Page: https://openlegislation.uk/eu-decision-2012-135/annex/division-3/division-1.2/division-2/division-28
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.