{
  "url": "https://openlegislation.uk/eu-decision-2017-2117/annex/division-9/division-9.2/division-BAT+69",
  "json_url": "https://openlegislation.uk/eu-decision-2017-2117/annex/division-9/division-9.2/division-BAT+69.json",
  "legislation": "eudn/2017/2117",
  "legislation_title": "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)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2017-2117",
  "path": "annex/division/9/division/9.2/division/BAT+69",
  "kind": "division",
  "number": "BAT 69:",
  "heading": "In order to reduce the load of nitrite, nitrate and organic compounds discharged from the DNT plant to waste water treatment, BAT is to recover raw materials, to reduce the waste water volume and to reuse water by using an appropriate combination of the techniques given below.",
  "text": "Technique\nDescription\nApplicability\na.\nUse of highly concentrated nitric acid\nUse highly concentrated HNO3 (e.g. about 99 %) to increase the process efficiency and to reduce the waste water volume and the load of pollutants\nApplicability to existing units may be restricted by design and/or operational constraints\nb.\nOptimised regeneration and recovery of spent acid\nPerform the regeneration of the spent acid from the nitration reaction in such a way that water and the organic content are also recovered for reuse, by using an appropriate combination of evaporation/distillation, stripping and condensation\nApplicability to existing units may be restricted by design and/or operational constraints\nc.\nReuse of process water to wash DNT\nReuse process water from the spent acid recovery unit and the nitration unit to wash DNT\nApplicability to existing units may be restricted by design and/or operational constraints\nd.\nReuse of water from the first washing step in the process\nNitric and sulphuric acid are extracted from the organic phase using water. The acidified water is returned to the process, for direct reuse or further processing to recover materials\nGenerally applicable\ne.\nMultiple use and recirculation of water\nReuse water from washing, rinsing and equipment cleaning e.g. in the counter-current multistep washing of the organic phase\nGenerally applicable\nBAT-associated waste water volume: See Table 9.2.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2017/2117/annex/division/9/division/9.2/division/BAT+69",
    "retrieved_at": "2026-11-01T15:13:18.480772+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."
}