{
  "url": "https://openlegislation.uk/eu-decision-2013-84/annex/division-2/division-1.4/division-1.4.1/division-5",
  "json_url": "https://openlegislation.uk/eu-decision-2013-84/annex/division-2/division-1.4/division-1.4.1/division-5.json",
  "legislation": "eudn/2013/84",
  "legislation_title": "Commission Implementing Decision of 11 February 2013 establishing the best available techniques (BAT) conclusions under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions for the tanning of hides and skins (notified under document C(2013) 618) (Text with EEA relevance) (2013/84/EU)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2013-84",
  "path": "annex/division/2/division/1.4/division/1.4.1/division/5",
  "kind": "division",
  "number": "5",
  "heading": null,
  "text": "In order to reduce the pollutant load in the waste water before effluent treatment arising from the beamhouse process steps, BAT is to use an appropriate combination of the techniques given below.\nTechnique\nDescription\nApplicability\na\nThe use of short floats\nShort floats are reduced amounts of process water. When less water is present, the quantity of process chemicals which are discarded unreacted, is reduced.\nThe technique cannot be applied for the processing of calfskins.\nApplicability is also limited to:\nnew processing vessels,\nexisting processing vessels that allow the use of, or can be modified to use, short floats.\nb\nThe use of clean hides or skins\nUse of hides or skins which have less manure adhering to the exterior, possibly through a formal ‘clean hides scheme’.\nApplicable subject to the constraints of the availability of clean hides.\nc\nProcessing fresh hides or skins\nUnsalted hides or skins are used.\nRapid post-mortem cooling combined with either short delivery times or temperature-controlled transport and storage are used to prevent their deterioration.\nApplicability is limited by the availability of fresh hides or skins.\nCannot be applied when a supply chain longer than two days is involved.\nd\nShaking off loose salt from hides by mechanical means\nSalted hides are opened out for processing in a manner which shakes or tumbles them, so that loose salt crystals fall off and are not taken into the soaking process.\nApplicability is limited to tanneries processing salted hides.\ne\nHair-save unhairing\nUnhairing is carried out by dissolving the hair root rather than the whole hair. The remaining hair is filtered out of the effluent. The concentration of hair breakdown products in the effluent is reduced.\nThe technique is not applicable where facilities for the processing of hair for use are not available within a reasonable transport distance or when the hair use is not possible.\nApplicability is also limited to:\nnew processing vessels,\nexisting processing vessels that allow the use of, or can be modified to use, the technique.\nf\nUsing organic sulphur compounds or enzymes in the unhairing of bovine hides\nThe amount of inorganic sulphide used in unhairing is reduced by partially replacing it by organic sulphur compounds or by additional use of appropriate enzymes.\nAdditional use of enzymes is not applicable to tanneries producing leather with a visible grain (e.g. aniline leather).\ng\nReduced ammonium use during deliming\nThe use of ammonium compounds in deliming is partially or completely replaced by the injection of carbon dioxide gas and/or the use of other substitute deliming agents.\nThe complete replacement of ammonium compounds by CO2 during deliming cannot be applied to the processing of materials whose thickness is over 1,5 mm.\nThe applicability of partial or complete replacement of ammonium compounds by CO2 during deliming is also limited to:\nnew processing vessels,\nexisting processing vessels that allow the use of, or can be modified to use, CO2 during deliming.",
  "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/2013/84/annex/division/2/division/1.4/division/1.4.1/division/5",
    "retrieved_at": "2026-11-01T15:15:10.805176+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."
}