{"id":1000014128,"date":"2024-01-04T16:08:00","date_gmt":"2024-01-04T15:08:00","guid":{"rendered":"https:\/\/forum-engagement.org\/?p=1000014128"},"modified":"2023-12-21T16:10:11","modified_gmt":"2023-12-21T15:10:11","slug":"la-valeur-des-dechets","status":"publish","type":"post","link":"https:\/\/forum-engagement.org\/2024\/la-valeur-des-dechets\/","title":{"rendered":"La valeur des d\u00e9chets"},"content":{"rendered":"\n
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Ecrit par Bertrand Piccard<\/a><\/p>\n\n\n\n

Nous vivons dans un monde qui gaspille. 
 
Au-del\u00e0 de cette \u00e9vidence, nous trouvons la cause de la plus grande partie de la pollution et des changements climatiques. Nous gaspillons 75 % de l’\u00e9nergie, la moiti\u00e9 de la nourriture que nous produisons et une immense partie des ressources naturelles. Pas seulement par des comportements erron\u00e9s, mais souvent en raison d\u2019infrastructures d\u00e9su\u00e8tes et inefficientes. Ce qui est moins connu, c\u2019est la valeur de tout ce que nous jetons. Et pourtant nous gaspillons 95 % des d\u00e9chets que nous produisons. C\u2019est un cercle vicieux qui nous fait foncer \u00e0 toute vitesse dans le mur.
 
Pourtant, de nombreuses solutions existent, \u00e0 diff\u00e9rentes \u00e9chelles et dans diff\u00e9rents secteurs. De nos d\u00e9chets m\u00e9nagers, \u00e0 ceux alimentaires et industriels, le monde est doucement en train de comprendre le potentiel que cela repr\u00e9sente. Ainsi, alors qu\u2019il est important de r\u00e9duire le gaspillage avant ou apr\u00e8s consommation, les d\u00e9chets que nous produisons par d\u00e9faut ne repr\u00e9sentent pas la fin du processus. 
 
C\u2019est ainsi que la technologie Wagabox, d\u00e9velopp\u00e9e par Waga Energy, spin-off du groupe Air Liquide, permet de produire du biom\u00e9thane \u00e0 partir de gaz de d\u00e9charge pour remplacer le gaz naturel d’origine fossile. Qu\u2019est-ce-que le gaz de d\u00e9charge?C\u2019est du biogaz g\u00e9n\u00e9r\u00e9 par la fermentation des mati\u00e8res organiques contenues dans les d\u00e9chets, m\u00e9lang\u00e9 \u00e0 diff\u00e9rents compos\u00e9s organiques volatils produits par leur d\u00e9composition. Wagabox r\u00e9cup\u00e8re 90 % du m\u00e9thane contenu dans les gaz de d\u00e9charge, qui autrement se dissiperait dans l\u2019atmosph\u00e8re avec un effet de serre 28 fois plus graves que le CO2. Le gaz est ensuite refroidi \u00e0 temp\u00e9rature cryog\u00e9nique pour s\u00e9parer le m\u00e9thane de l’oxyg\u00e8ne et de l’azote, injectant ainsi du biom\u00e9thane 24 heures sur 24 dans les r\u00e9seaux de gaz qui le transportent jusqu’aux lieux de consommation. Les avantages environnementaux et \u00e9conomiques sont \u00e9poustouflants : depuis 2017, Wagabox \u00e0 d’ores et d\u00e9j\u00e0 inject\u00e9 plus de 72 millions de m\u00e8tres cubes de biom\u00e9thane dans les r\u00e9seaux, et \u00e9vit\u00e9 ainsi l’\u00e9mission d’environ 140 000 tonnes d’eqCO2 par an dans l’atmosph\u00e8re par la substitution du gaz naturel fossile. Cela repr\u00e9sente les \u00e9missions annuelles d’environ 60 000 voitures.
 
Fran\u00e7aise, cette technologie s\u2019est bien export\u00e9e ces derniers mois. Au Canada, en Espagne, aux U.S.A, Wagabox devient une r\u00e9f\u00e9rence dans le secteur du biom\u00e9thane. Une unit\u00e9 va d\u00e9marrer dans quelques mois dans l’Etat de New York, et quatre autres sont d\u00e9j\u00e0 en construction dans le nord-est des Etats-Unis et dans l’Iowa. Tout cela permettra de produire du gaz substitut du gaz naturel fossile, en captant le biogaz \u00e9mis par les mati\u00e8res organiques des d\u00e9chets. Elle a aussi suscit\u00e9 l\u2019int\u00e9r\u00eat de grandes entreprises, telles que Veolia et SUEZ, qui collaborent depuis avec Waga Energy.
 
Je termine souvent cette chronique en soulignant la logique de certaines solutions d\u00e9crites ici et identifi\u00e9es par la Fondation Solar Impulse, gr\u00e2ce \u00e0 son label. Mais que voulez-vous rajouter face \u00e0 tant d\u2019\u00e9vidence ? Wagabox est une entreprise fran\u00e7aise innovante, \u00e0 la pointe dans son domaine et qui a vu un potentiel dans quelque chose sans aucune valeur apparente : l\u2019opportunit\u00e9 de faire bouger les lignes et de remplacer une \u00e9nergie fossile par une propre, qui s’\u00e9vaporait litt\u00e9ralement dans leciel. C\u2019est l\u2019esprit pionnier que j\u2019admire tant chez ceux qui font la transition \u00e9cologique.<\/p>\n\n\n\n

*Cet article est tir\u00e9 des Echos\/Investir, o\u00f9 Bertrand Piccard tient une chronique mensuelle*.<\/strong><\/p>\n\n\n\n

<\/a><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Ecrit par Bertrand Piccard Nous vivons dans un monde qui gaspille.  Au-del\u00e0 de cette \u00e9vidence, nous trouvons la cause de la plus grande partie de la pollution et des changements climatiques. Nous gaspillons 75 % de l’\u00e9nergie, la moiti\u00e9 de la nourriture que nous produisons et une immense partie des ressources naturelles. Pas seulement par des comportements erron\u00e9s, mais souvent […]<\/p>\n","protected":false},"author":197,"featured_media":1000014129,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[155],"tags":[],"class_list":{"0":"post-1000014128","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-engagements-pour-une-strategie-ecologique-performante"},"yoast_head":"\nLa valeur des d\u00e9chets | Forum Engagement<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La valeur des d\u00e9chets | Forum Engagement\" \/>\n<meta property=\"og:description\" content=\"Ecrit par Bertrand Piccard Nous vivons dans un monde qui gaspille.  Au-del\u00e0 de cette \u00e9vidence, nous trouvons la cause de la plus grande partie de la pollution et des changements climatiques. Nous gaspillons 75 % de l’\u00e9nergie, la moiti\u00e9 de la nourriture que nous produisons et une immense partie des ressources naturelles. Pas seulement par des comportements erron\u00e9s, mais souvent […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/forum-engagement.org\/2024\/la-valeur-des-dechets\/\" \/>\n<meta property=\"og:site_name\" content=\"Forum Engagement\" \/>\n<meta property=\"article:published_time\" content=\"2024-01-04T15:08:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2023\/12\/Capture-decran-2023-12-21-a-16.09.30.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1424\" \/>\n\t<meta property=\"og:image:height\" content=\"1126\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Solar Impulse Foundation\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" 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