{
  "url": "https://openlegislation.uk/eu-decision-2014-687/annex/division-9/division-1.3/division-1.3.2/division-bat+37/division-1",
  "json_url": "https://openlegislation.uk/eu-decision-2014-687/annex/division-9/division-1.3/division-1.3.2/division-bat+37/division-1.json",
  "legislation": "eudn/2014/687",
  "legislation_title": "Commission Implementing Decision of 26 September 2014 establishing the best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council, for the production of pulp, paper and board (notified under document C(2014) 6750) (Text with EEA relevance) (2014/687/EU)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2014-687",
  "path": "annex/division/9/division/1.3/division/1.3.2/division/bat+37/division/1",
  "kind": "division",
  "number": null,
  "heading": "BAT-associated emission levels",
  "text": "See Table 15.\nTable 15\nBAT-associated emission levels for dust and SO2 emissions from a recovery boiler\nFor recovery boilers operated in mills using more than 25 % of hardwood (potassium-rich) in raw materials, higher dust emissions up to 30 mg/Nm3 may occur.\nThe BAT-AEL for dust does not apply for ammonium-based mills.\nDue to process-specific higher emissions, the BAT-AEL for SO2 does not apply for recovery boilers operated permanently under ‘acidic’ conditions, i.e. using sulphite liquor as wet-scrubber washing media as part of the sulphite recovery process.\nFor existing multistage venturi scrubbers, higher emissions of SO2 up to 400 mg/Nm3 as a daily average value and up to 350 mg/Nm3 as a yearly average may occur.\nNot applicable during ‘acid operation’, i.e. periods in which preventive flushing and cleaning of incrustation in the scrubbers takes place. During these periods emissions can be up to 300 – 500 mg SO2/Nm3 (at 5 % O2) for cleaning of one of the scrubbers and up to 1 200 mg SO2/Nm3 (half-hourly mean values, at 5 % O2) when cleaning the final washer.\nParameter\nAverage over the sampling periodmg/Nm3 at 5 % O2\nDust\n5 – 20\nDaily average\nmg/Nm3 at 5 % O2\nYearly average\nmg/Nm3 at 5 % O2\nSO2\n100 – 300\n50 – 250\nThe BAT-associated environmental performance level is a duration of acid operation of around 240 hours per year for the scrubbers, and less than 24 hours per month for the last monosulphite scrubber.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "For recovery boilers operated in mills using more than 25 % of hardwood (potassium-rich) in raw materials, higher dust emissions up to 30 mg/Nm3 may occur."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "The BAT-AEL for dust does not apply for ammonium-based mills."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "Due to process-specific higher emissions, the BAT-AEL for SO2 does not apply for recovery boilers operated permanently under ‘acidic’ conditions, i.e. using sulphite liquor as wet-scrubber washing media as part of the sulphite recovery process."
    },
    {
      "type": "footnote",
      "label": "f4",
      "text": "For existing multistage venturi scrubbers, higher emissions of SO2 up to 400 mg/Nm3 as a daily average value and up to 350 mg/Nm3 as a yearly average may occur."
    },
    {
      "type": "footnote",
      "label": "f5",
      "text": "Not applicable during ‘acid operation’, i.e. periods in which preventive flushing and cleaning of incrustation in the scrubbers takes place. During these periods emissions can be up to 300 – 500 mg SO2/Nm3 (at 5 % O2) for cleaning of one of the scrubbers and up to 1 200 mg SO2/Nm3 (half-hourly mean values, at 5 % O2) when cleaning the final washer."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2014/687/annex/division/9/division/1.3/division/1.3.2/division/bat+37/division/1",
    "retrieved_at": "2026-11-01T15:14:38.312084+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}