{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T16:12:53Z","timestamp":1790179973252,"version":"4.1.0"},"reference-count":29,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2024,6,6]],"date-time":"2024-06-06T00:00:00Z","timestamp":1717632000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100011755","name":"Center for Research and Development under the Cornet Initiative","doi-asserted-by":"publisher","award":["CORNET\/27\/1\/2019"],"award-info":[{"award-number":["CORNET\/27\/1\/2019"]}],"id":[{"id":"10.13039\/501100011755","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Membranes"],"abstract":"<jats:p>This paper presents the basic assumptions of the concept of a new technology for the valorisation of chromium tannery waste. It assumes the use of an integrated system of the thermal pressure hydrolysis process and membrane filtration techniques for the recovery of chromium compounds and the use of a separated organic matter during anaerobic fermentation. According to the assumptions of the developed technological concept, at the first stage, the crushed mixture of chromium tannery waste is decomposed in the process of thermal pressure hydrolysis using appropriate process conditions in an alkaline environment. Then, the liquid product of this process (the so-called hydrolysate) is processed using centrifugal force separation and ultrafiltration. Such activities enable the recovery of chromium compounds for rawhide currying and concentration of organic matter (fats, proteins) with energy potential. Research carried out under conditions similar to real operating conditions proved that chromium compounds recovered from waste can be successfully used in the processing of cowhides intended for the production of footwear. The industrial implementation of the developed technology for valorising chromium tannery waste would enable the transition from a linear to a circular economy.<\/jats:p>","DOI":"10.3390\/membranes14060136","type":"journal-article","created":{"date-parts":[[2024,6,7]],"date-time":"2024-06-07T04:38:56Z","timestamp":1717735136000},"page":"136","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Valorisation of Tannery Waste to Recover Chromium with a View to Reusing It in Industrial Practise"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1595-1039","authenticated-orcid":false,"given":"Anna","family":"Kowalik-Klimczak","sequence":"first","affiliation":[{"name":"\u0141ukasiewicz Research Network\u2013Institute for Sustainable Technology, Pu\u0142askiego St. 6\/10, 26-600 Radom, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3789-7531","authenticated-orcid":false,"given":"Monika","family":"\u0141o\u017cy\u0144ska","sequence":"additional","affiliation":[{"name":"\u0141ukasiewicz Research Network\u2013Institute for Sustainable Technology, Pu\u0142askiego St. 6\/10, 26-600 Radom, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7361-0932","authenticated-orcid":false,"given":"Maciej","family":"\u017bycki","sequence":"additional","affiliation":[{"name":"\u0141ukasiewicz Research Network\u2013Institute for Sustainable Technology, Pu\u0142askiego St. 6\/10, 26-600 Radom, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Schadewell","sequence":"additional","affiliation":[{"name":"Pr\u00fcf- und Forschungsinstitut Pirmasens e.V., Marie-Curie-Str. 19, 66953 Pirmasens, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Fiehn","sequence":"additional","affiliation":[{"name":"Pr\u00fcf- und Forschungsinstitut Pirmasens e.V., Marie-Curie-Str. 19, 66953 Pirmasens, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bogus\u0142aw","family":"Wo\u017aniak","sequence":"additional","affiliation":[{"name":"\u0141ukasiewicz Research Network\u2013Institute for Sustainable Technology, Pu\u0142askiego St. 6\/10, 26-600 Radom, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monika","family":"Flisek","sequence":"additional","affiliation":[{"name":"Countrywide Chamber of Leather Industry, W\u0142odzimierza Krukowskiego St. 1, 26-600 Radom, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"434","DOI":"10.1016\/j.psep.2022.09.024","article-title":"Single pot low float chromium tanning: Cleaner pathway approach to environment friendly leather manufacturing","volume":"167","author":"Ariram","year":"2022","journal-title":"Process Saf. 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