{"id":3217,"date":"2015-04-10T00:00:02","date_gmt":"2015-04-09T22:00:02","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil1\/?p=3217"},"modified":"2015-04-09T21:13:00","modified_gmt":"2015-04-09T19:13:00","slug":"des-micro-algues-dans-le-bitume-ca-tient-la-route","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/des-micro-algues-dans-le-bitume-ca-tient-la-route\/","title":{"rendered":"Des micro-algues dans le bitume, \u00e7a tient la route"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Des chercheurs fran\u00e7ais voient dans ces minuscules organismes aquatiques une solution pour remplacer le p\u00e9trole.<\/p>\n<p>Des micro-algues comme alternative s\u00e9rieuse au p\u00e9trole dans le bitume de demain ? Pour une \u00e9quipe de chercheurs fran\u00e7ais, dont les travaux viennent d\u2019\u00eatre publi\u00e9s dans le num\u00e9ro d\u2019avril de la revue ACS Sustainable Chemistry &amp; Engineering, le concept tient la route.<\/p>\n<p>Parmi les solutions envisag\u00e9es jusqu\u2019alors pour rompre la d\u00e9pendance au p\u00e9trole dans la construction des chauss\u00e9es, celles \u00e0 base d\u2019huiles d\u2019origine agricole avaient l\u2019inconv\u00e9nient d\u2019occuper des champs pouvant servir \u00e0 l\u2019alimentation. \u00abLes micro-algues n\u2019ont pas ce probl\u00e8me : elles sont d\u00e9j\u00e0 disponibles sous forme de d\u00e9chets g\u00e9n\u00e9r\u00e9s par l\u2019industrie cosm\u00e9tique\u00bb, explique Bruno Bujoli, du laboratoire chimie et interdisciplinarit\u00e9 de l\u2019universit\u00e9 de Nantes, qui a particip\u00e9 aux recherches.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p>En les chauffant dans une enceinte ferm\u00e9e, lui et ses collaborateurs ont r\u00e9ussi \u00e0 transformer ces r\u00e9sidus d\u2019algues en une mati\u00e8re noire \u00e0 l\u2019aspect et au comportement proches du bitume classique. Visco\u00e9lastique entre -20 \u00b0C et 60\u00b0C, le m\u00e9lange assurerait la coh\u00e9sion des autres \u00e9l\u00e9ments granulaires et permettrait de supporter les charges impos\u00e9es.<\/p>\n<p>M\u00e9lang\u00e9 aux granul\u00e9s, le produit \u00e0 base de micro-algues permet d&rsquo;obtenir un bitume au comportement proche de ceux \u00e0 base de p\u00e9trole.<\/p>\n<p>Ce bio-bitume n\u2019a cependant pas encore \u00e9t\u00e9 test\u00e9 en conditions r\u00e9elles hors du laboratoire. \u00abC\u2019est pr\u00e9vu dans les prochaines ann\u00e9es\u00bb, assure Bruno Bujoli. Restera aussi \u00e0 en d\u00e9terminer la viabilit\u00e9 \u00e9conomique. Car pour l\u2019heure, seuls 55% des d\u00e9chets r\u00e9cup\u00e9r\u00e9s sont r\u00e9utilis\u00e9s en fin de r\u00e9action chimique.<\/p>\n<p>Ces recherches, financ\u00e9es dans le cadre du programme Algoroute par la r\u00e9gion Pays de la Loire, ne se limitent pas aux micro-algues. \u00abOn pourrait envisager d\u2019utiliser les d\u00e9chets de l\u2019industrie alimentaire\u00bb, glisse le chercheur. Des routes \u00e0 base de graisse de canard et de pommes pourries ? Du moment que \u00e7a roule.<\/p>\n<p>source :\u00a0http:\/\/www.liberation.fr\/<\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"3217\">(265)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Des chercheurs fran\u00e7ais voient dans ces minuscules organismes aquatiques une solution pour remplacer le p\u00e9trole. Des micro-algues comme alternative s\u00e9rieuse&#8230;<\/p>\n","protected":false},"author":1,"featured_media":3218,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[26],"tags":[2770,2769,2768,1131,1428,88,1240,100,38],"class_list":["post-3217","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solutions","tag-alternative","tag-base-de-graisse","tag-bitume","tag-industrie","tag-micro-algues","tag-petrole","tag-route","tag-solution","tag-solutions","wpcat-26-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/algues-bitume.jpg?fit=750%2C414&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-PT","jetpack-related-posts":[{"id":1106,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-algues-notre-futur-plein-dessence-ii\/","url_meta":{"origin":3217,"position":0},"title":"Les Algues, notre futur plein d&rsquo;essence II","author":"Admin","date":"1 novembre 2012","format":false,"excerpt":"Apr\u00e8s avoir vu le proc\u00e9d\u00e9 et \u00e9galement le d\u00e9veloppement qui est en cours aux Etats-Unis et en Espagne ICI, voici que le carburant d'algues fait ses premiers pas en France. GRUISSAN (Aude) (AFP) - Nich\u00e9 dans les salins au bord de la M\u00e9diterran\u00e9e, l'endroit \u00e9voque une paillote dont les propri\u00e9taires\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1342,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-algues-lenergie-du-futur\/","url_meta":{"origin":3217,"position":1},"title":"Les Algues : l&rsquo;\u00e9nergie du futur","author":"Admin","date":"16 avril 2013","format":false,"excerpt":"Les algues, l\u2019\u00e9nergie du futur. La diminution des r\u00e9serves d\u2019hydrocarbures et les modifications environnementales climatiques rendent n\u00e9cessaire le d\u00e9veloppement de nouvelles sources d\u2019\u00e9nergie. La crise \u00e9nerg\u00e9tique actuelle est sans pr\u00e9c\u00e9dent car elle d'ordre g\u00e9ologique. L\u2019id\u00e9e de produire du p\u00e9trole, ou plut\u00f4t du carburant, \u00e0 partir de mati\u00e8res organiques n\u2019est pas\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"algues p\u00e9trole","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2012\/03\/algues-petrole.gif?fit=480%2C319&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":822,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-algues-notre-futur-plein-dessence\/","url_meta":{"origin":3217,"position":2},"title":"Les algues, notre futur plein d\u2019essence ?","author":"Admin","date":"25 mars 2012","format":false,"excerpt":"Les algues pourraient bient\u00f4t remplacer le p\u00e9trole pour faire rouler nos voitures. Elles ont l'avantage de rejeter beaucoup moins de CO2 que le p\u00e9trole et leur production est peu polluante. \u00c0 quand, le premier plein d'algues ? Et quand un p\u00e9trolier comme ExxonMobil se pr\u00e9pare au tournant... Il y a\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4539,"url":"https:\/\/www.laterredufutur.com\/accueil\/a-la-recherche-de-lalgue-a-petrole\/","url_meta":{"origin":3217,"position":3},"title":"A la recherche de l\u2019algue \u00e0 p\u00e9trole","author":"Admin","date":"30 juillet 2008","format":false,"excerpt":"Un programme de l\u2019Agence Nationale de la Recherche sur un compl\u00e9ment au p\u00e9trole vient d\u2019\u00eatre lanc\u00e9, avec l\u2019objectif d\u2019utiliser une micro algue servant de biocarburant \u00e0 tr\u00e8s haut rendement. 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Les premi\u00e8res \"mar\u00e9es vertes\" bretonnes datent des ann\u00e9es 1960. Avec l\u2019intensification de l\u2019agriculture,\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":5751,"url":"https:\/\/www.laterredufutur.com\/accueil\/lopep-en-tremble-deja-voici-le-petrole-renouvelable\/","url_meta":{"origin":3217,"position":5},"title":"L\u2019OPEP en tremble d\u00e9j\u00e0: voici le p\u00e9trole renouvelable","author":"Admin","date":"30 mars 2011","format":false,"excerpt":"Depuis 5 ans, des chercheurs fran\u00e7ais et espagnols travaillent \u00e0 l\u2019\u00e9laboration du p\u00e9trole synth\u00e9tique. Ils y sont parvenu et la production industrielle est sur le point de d\u00e9buter. \u00c0 partir d\u2019algues microscopiques, de lumi\u00e8re et de CO2 recycl\u00e9 des usines polluantes, on peut faire en 48 heures ce que la\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/algues-petrole.jpg?fit=207%2C239&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/3217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=3217"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/3217\/revisions"}],"predecessor-version":[{"id":3219,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/3217\/revisions\/3219"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/3218"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=3217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=3217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=3217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}