{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T09:52:48Z","timestamp":1768557168262,"version":"3.49.0"},"reference-count":25,"publisher":"IWA Publishing","issue":"1","content-domain":{"domain":["iwaponline.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2019,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>This work is dedicated to the removal of free cyanide from aqueous solution through oxidation with hydrogen peroxide H2O2 catalyzed by copper oxide nanoparticles. Effects of initial molar ratio [H2O2]0\/[CN\u2212]0, catalyst dose, temperature, pH and the catalyst stability on cyanide removal have been investigated. The use of copper oxide has improved the reaction rate showing catalytic activity. The cyanide removal efficiency was increased from 60% to 94% by increasing in the dose of catalyst from 0.5 g\/L to 5.0 g\/L. Increasing the temperature from 20 \u00b0C to 35 \u00b0C promotes cyanide removal and the four successive times re-use of catalyst shows good stability. Kinetics of cyanide removal was found to be of pseudo-first-order with respect to cyanide. The rate constants have been determined.<\/jats:p>","DOI":"10.2166\/wst.2019.254","type":"journal-article","created":{"date-parts":[[2019,7,25]],"date-time":"2019-07-25T13:42:40Z","timestamp":1564062160000},"page":"126-133","update-policy":"https:\/\/doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":11,"title":["Removal of cyanide in aqueous solution by oxidation with hydrogen peroxide catalyzed by copper oxide"],"prefix":"10.2166","volume":"80","author":[{"given":"Hamza","family":"Amaouche","sequence":"first","affiliation":[{"name":"Laboratoire d'Etude et de D\u00e9veloppement des Techniques de Traitement et d'Epuration des Eaux et de Gestion Environnementale \u2013 LEDTEGE, Ecole Normale Sup\u00e9rieure Kouba, BP 92 Vieux Kouba 16050, Algiers, Algeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Salima","family":"Chergui","sequence":"first","affiliation":[{"name":"Laboratoire d'Etude et de D\u00e9veloppement des Techniques de Traitement et d'Epuration des Eaux et de Gestion Environnementale \u2013 LEDTEGE, Ecole Normale Sup\u00e9rieure Kouba, BP 92 Vieux Kouba 16050, Algiers, Algeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Farid","family":"Halet","sequence":"first","affiliation":[{"name":"Laboratoire d'Etude et de D\u00e9veloppement des Techniques de Traitement et d'Epuration des Eaux et de Gestion Environnementale \u2013 LEDTEGE, Ecole Normale Sup\u00e9rieure Kouba, BP 92 Vieux Kouba 16050, Algiers, Algeria"},{"name":"Universit\u00e9 M'hamed Bougara de Boumerdes, Avenue de l'ind\u00e9pendance Boumerdes 35000, Algeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ahmed R\u00e9da","family":"Yeddou","sequence":"first","affiliation":[{"name":"Laboratoire d'Etude et de D\u00e9veloppement des Techniques de Traitement et d'Epuration des Eaux et de Gestion Environnementale \u2013 LEDTEGE, Ecole Normale Sup\u00e9rieure Kouba, BP 92 Vieux Kouba 16050, Algiers, Algeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abdelmalek","family":"Chergui","sequence":"first","affiliation":[{"name":"Laboratoire d'Etude et de D\u00e9veloppement des Techniques de Traitement et d'Epuration des Eaux et de Gestion Environnementale \u2013 LEDTEGE, Ecole Normale Sup\u00e9rieure Kouba, BP 92 Vieux Kouba 16050, Algiers, Algeria"},{"name":"Ecole Nationale Polytechnique d'Alger, 10 rue Hassen Badi El Harrach, Algiers, Algeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Boubekeur","family":"Nadjemi","sequence":"first","affiliation":[{"name":"Laboratoire d'Etude et de D\u00e9veloppement des Techniques de Traitement et d'Epuration des Eaux et de Gestion Environnementale \u2013 LEDTEGE, Ecole Normale Sup\u00e9rieure Kouba, BP 92 Vieux Kouba 16050, Algiers, Algeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A\u00efssa","family":"Ould-Dris","sequence":"first","affiliation":[{"name":"Laboratoire de 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