{"id":20752,"date":"2019-10-24T12:37:58","date_gmt":"2019-10-24T12:37:58","guid":{"rendered":"https:\/\/services.jacobi.net\/lead-removal-from-water-with-ion-exchange-resins\/"},"modified":"2025-08-11T16:33:10","modified_gmt":"2025-08-11T16:33:10","slug":"elimination-du-plomb-pb%c2%b2%e2%81%ba-de-leau-a-laide-de-resines-chelatantes","status":"publish","type":"post","link":"https:\/\/services.jacobi.net\/fr\/elimination-du-plomb-pb%c2%b2%e2%81%ba-de-leau-a-laide-de-resines-chelatantes\/","title":{"rendered":"\u00c9limination du plomb (Pb\u00b2\u207a) de l’eau \u00e0 l’aide de r\u00e9sines ch\u00e9latantes."},"content":{"rendered":"\t\t
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D\u2019o\u00f9 vient le plomb?<\/h3>

Le plomb se trouve le plus souvent sous forme de sulfure de plomb (PbS) dans la gal\u00e9nite min\u00e9rale. La c\u00e9rusite (minerai d\u2019\u00e9tain et de plomb), de composition chimique carbonate de plomb (II) (PbCO\u2083), est un min\u00e9ral secondaire du plomb form\u00e9 par la r\u00e9action chimique de l\u2019eau gaz\u00e9ifi\u00e9e avec la gal\u00e8ne. Une troisi\u00e8me source importante de plomb est l\u2019anglesite (plomb vitriol), qui est le sulfate de plomb (II) (PbSO\u2084), form\u00e9 par l\u2019oxydation de gal\u00e8ne.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Gal\u00e9nite<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Anglesite<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\tCerussite\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Tableau 1: Min\u00e9raux de plomb<\/strong><\/td><\/tr>
Min\u00e9ral<\/strong><\/td>Formule chimique<\/strong><\/td><\/tr>
Gal\u00e9nite<\/span><\/td>Sulfure de plomb (II) (PbS)<\/span><\/td><\/tr>
Anglesite<\/span><\/td>Sulfate de plomb (II) (PbSO\u2084)<\/span><\/td><\/tr>
Cerussite<\/span><\/td>Carbonate de plomb (II) (PbCO\u2083)<\/span><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Le plomb est-il toujours utilis\u00e9?<\/h3>

Le plomb est utilis\u00e9 dans de nombreuses applications diff\u00e9rentes, notamment:<\/p>

  • Accumulateurs au plomb<\/li>
  • Feuilles de plomb lamin\u00e9es utilis\u00e9es dans le b\u00e2timent pour l’\u00e9tanch\u00e9it\u00e9 des toitures<\/li>
  • Balles de plomb dans les munitions<\/li>
  • Pigment de peinture<\/li>
  • Composant antisalissure dans les syst\u00e8mes de rev\u00eatement<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    Comment le plomb est-il pr\u00e9sent dans les eaux souterraines?<\/h3>

    Le diagramme de Pourbaix ou potentiel \/ pH du plomb de la figure 1 montre la sp\u00e9ciation du plomb dans l\u2019eau. La zone entre les lignes pointill\u00e9es orange repr\u00e9sente la zone de stabilit\u00e9 de l\u2019eau. Le diagramme montre que la sp\u00e9ciation du plomb dans l\u2019eau est domin\u00e9e par sa forme \u00e9l\u00e9mentaire cationique Pb\u00b2\u207a .<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Figure 1: Diagramme de Pourbaix du plomb dans l\u2019eau<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    La concentration de plomb dans l\u2019eau naturelle est g\u00e9n\u00e9ralement inf\u00e9rieure \u00e0 5 ppb (\u00b5g \/ l), mais une zone contamin\u00e9e peut contenir des eaux souterraines dont la concentration d\u00e9passe la recommandation de 10 ppb (\u00b5g \/ l) de l\u2019Organisation Mondiale de la Sant\u00e9 (OMS).<\/p>

    Comment le plomb (Pb\u00b2\u207a) est-il retir\u00e9 des eaux souterraines?<\/h3>

    La forme \u00e9l\u00e9mentaire cationique du plomb (Pb\u00b2\u207a) peut \u00eatre efficacement captur\u00e9e et \u00e9limin\u00e9e des eaux souterraines \u00e0 l\u2019aide d\u2019une r\u00e9sine ch\u00e9latante s\u00e9lective \u00e0 cation acide faible (WAC) avec un groupe iminodiac\u00e9tique, telle que Resinex\u2122 CH-23.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Figure 2: Une r\u00e9sine ch\u00e9latante s\u00e9lective avec un groupe iminodiac\u00e9tique<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    La capacit\u00e9 moyenne d\u2019\u00e9limination du plomb cationique (Pb\u00b2\u207a) de Resinex\u2122 CH-23 est de 90g de Pb\u00b2\u207a par litre de r\u00e9sine mais d\u00e9pend de la matrice de l\u2019eau. Souvent, l\u2019eau contient d\u2019autres m\u00e9taux qui contribueront \u00e0 la saturation du lit; par cons\u00e9quent, il est toujours recommand\u00e9 de contacter nos experts techniques pour le dimensionnement d\u2019un syst\u00e8me d\u2019\u00e9limination des m\u00e9taux lourds car d\u2019autres m\u00e9taux peuvent influencer la consommation estim\u00e9e.<\/p>

    Resinex\u2122 CH-23 est une r\u00e9sine ch\u00e9latante qui \u00e9limine \u00e9galement efficacement les autres cations de m\u00e9taux lourds, tels que le cuivre (Cu\u00b2\u207a), le vanadium (Va\u00b2\u207a), le nickel (Ni\u00b2\u207a), le zinc (Zn\u00b2\u207a) et le cadmium (Cd\u00b2\u207a) dans leur forme cationique \u00e9l\u00e9mentaire.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Conditions de fonctionnement recommand\u00e9es pour l’\u00e9limination du plomb (Pb\u00b2\u207a)<\/h3>

    La s\u00e9lection des conditions de fonctionnement d’un syst\u00e8me d’\u00e9limination du plomb d\u00e9pend:<\/p>

    • Du temps de contact superficiel minimum n\u00e9cessaire \u00e0 l’application<\/li>
    • Des autres esp\u00e8ces cationiques dans l’eau<\/li>
    • De la dur\u00e9e de vie du lit souhait\u00e9e<\/li>
    • Des conditions de fonctionnement (continu, discontinu)<\/li><\/ul>

      Un AquaFlow\u2122 peut \u00eatre utilis\u00e9 pour \u00e9liminer le plomb (Pb\u00b2\u207a) avec un temps de contact superficiel d’au moins six minutes, mais g\u00e9n\u00e9ralement deux AquaFlow\u2122 en s\u00e9rie, en syst\u00e8me carrousel sont utilis\u00e9s avec un d\u00e9bit typique par r\u00e9servoir: 10 \u00e0 20 BV\/ h.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Un cas d’enl\u00e8vement de plomb calcul\u00e9 (Pb\u00b2\u207a)<\/h3>

      Supposons une eau souterraine contamin\u00e9e avec 1 mg \/ l de plomb (Pb\u00b2\u207a) qui doit \u00eatre purifi\u00e9e avec les propri\u00e9t\u00e9s suivantes:<\/p>

      • D\u00e9bit moyen de 30m\u00b3\/ h\u00a0<\/span><\/li>
      • Fonctionnement continu 24h \/ 24, 7j \/ 7\u00a0<\/span><\/li><\/ul>

        La charge annuelle de plomb (Pb\u00b2\u207a) est alors calcul\u00e9e comme suit:\u00a0<\/span><\/p>

        • Concentration de plomb: 1mg\/l = 1g\/m\u00b3\u00a0<\/span><\/li>
        • Volume annuel d\u2019eau souterraine contamin\u00e9e au plomb (Pb\u00b2)\u00a0: 30m\u00b3\/h x 8\u00a0600 hp = 258\u00a0000 m\u00b3\u00a0<\/span><\/li>
        • Charge annuelle de plomb (Pb\u00b2)\u00a0: 1g\/m\u00b3 x 258 000m\u00b3= 258 000g = 258kg Pb\u00b2\u207a\u00a0<\/span><\/li><\/ul>

          Cela donne \u00e0 une charge moyenne de 90kg Pb\u00b2\u207a\/m\u00b3 Resinex\u2122 CH-23<\/strong> une consommation d’environ 3m\u00b3 par an. Un filtre AquaFlow\u2122 peut \u00eatre s\u00e9lectionn\u00e9 dans notre gamme de filtres mobiles industriels afin d’obtenir la fr\u00e9quence d’\u00e9change souhait\u00e9e.\u00a0<\/span><\/span><\/p>

          Il est toujours recommand\u00e9 de contacter notre expert technique pour le dimensionnement d’un syst\u00e8me d’\u00e9limination des m\u00e9taux lourds car d’autres m\u00e9taux peuvent interf\u00e9rer dans la consommation estim\u00e9e.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

          D\u2019o\u00f9 vient le plomb? Le plomb se trouve le plus souvent sous forme de sulfure de plomb (PbS) dans la gal\u00e9nite min\u00e9rale. La c\u00e9rusite (minerai d\u2019\u00e9tain et de plomb), de composition chimique carbonate de plomb (II) (PbCO\u2083), est un min\u00e9ral secondaire du plomb form\u00e9 par la r\u00e9action chimique de l\u2019eau gaz\u00e9ifi\u00e9e avec la gal\u00e8ne. Une…<\/p>\n","protected":false},"author":32,"featured_media":39354,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3662],"tags":[],"class_list":["post-20752","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-traitement-de-leau"],"acf":[],"yoast_head":"\n\u00c9limination du plomb (Pb\u00b2\u207a) de l'eau \u00e0 l'aide de r\u00e9sines ch\u00e9latantes. | Jacobi Services<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/services.jacobi.net\/fr\/elimination-du-plomb-pb%c2%b2%e2%81%ba-de-leau-a-laide-de-resines-chelatantes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c9limination du plomb (Pb\u00b2\u207a) de l'eau \u00e0 l'aide de r\u00e9sines ch\u00e9latantes.\" \/>\n<meta property=\"og:description\" content=\"D\u2019o\u00f9 vient le plomb?Le plomb se trouve le plus souvent sous forme de sulfure de plomb (PbS) dans la gal\u00e9nite min\u00e9rale. 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