{"id":4066,"date":"2007-05-26T18:11:28","date_gmt":"2007-05-26T18:11:28","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/05\/26\/hyacinthe-deau-2\/"},"modified":"2012-07-12T09:57:05","modified_gmt":"2012-07-12T09:57:05","slug":"hyacinthe-deau-2","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/05\/26\/hyacinthe-deau-2\/","title":{"rendered":"Hyacinthe d’eau : prometteuse"},"content":{"rendered":"

\"Hyacinthe_deau\"<\/a>Introduite accidentellement d’Am\u00e9rique du sud en Afrique, la hyacinthe d’eau<\/a> pourrait s’av\u00e9rer \u00eatre un \u00e9norme producteur d’\u00e9nergie. Aujourd’hui, nuisance absolue, on cherche \u00e0 s’en d\u00e9barrasser, envahissante, elle colonise les cours d’eau et les lacs des pays tropicaux, mais elle a un potentiel \u00e9nerg\u00e9tique sans \u00e9gal. Jugez en.
Un hectare est capable de produire, par jour 500 kg de mati\u00e8re s\u00e9che (10 tonnes, car elle est humide \u00e0 95 %), chaque kilo de mati\u00e8re s\u00eache produisant 370 litre de biogaz <\/p>\n

(teneur en m\u00e9thane de 60 \u00e0 80 %) et une masse inappr\u00e9ciable d’engrais de bonne qualit\u00e9.
En r\u00e9alit\u00e9, la vision de la Hyacinthe d’eau est directement li\u00e9 aux prix du p\u00e9trole. Nuisance \u00e0 exterminer si le p\u00e9trole est bon march\u00e9, on s’aper\u00e7oit de sa potentialit\u00e9 quand l’\u00e9nergie est co\u00fbteuse.
Pour le moment, on en est encore aux ann\u00e9es 1997, et \u00e0 la lutte contre la hyacinthe. Mais la probl\u00e8matique commence \u00e0 se renverser. C’est la plante la plus productrice au monde. A quand l’extermination de ses parasites et de ses pr\u00e9dateurs (qu’on a introduit \u00e0 grand frais en Afrique). Mais son potentiel ne s’arr\u00eate pas l\u00e0 : traitement des eaux us\u00e9s, engrais<\/a>, combustible une fois s\u00e9ch\u00e9, et qui pourrait arr\u00eater la deforestation africaine… Ne reste plus qu’\u00e0 enclencher une m\u00e9canique \u00e9conomique…En r\u00e9alit\u00e9, il n’y a qu’une nuisance r\u00e9elle : la ressource non exploit\u00e9e. 10 tonnes par jour\/hectare, cela permet de faire travailler deux hommes.<\/p>\n

source : bob Stanley "\u00e9nergie en friche" ann\u00e9es 1970…<\/p>\n","protected":false},"excerpt":{"rendered":"

Introduite accidentellement d’Am\u00e9rique du sud en Afrique, la hyacinthe d’eau pourrait s’av\u00e9rer \u00eatre un \u00e9norme producteur d’\u00e9nergie. Aujourd’hui, nuisance absolue, on cherche \u00e0 s’en d\u00e9barrasser, envahissante, elle colonise les cours d’eau et les lacs des pays tropicaux, mais elle a un potentiel \u00e9nerg\u00e9tique sans \u00e9gal. Jugez en. Un hectare est capable de produire, par jour […]<\/p>\n","protected":false},"author":198,"featured_media":5636,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[1782],"class_list":["post-4066","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bio-carburants","tag-engrais-hyacinthe-deau"],"yoast_head":"\nHyacinthe d'eau : prometteuse - leblogenergie.com<\/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:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/05\/26\/hyacinthe-deau-2\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Hyacinthe d'eau : prometteuse - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"Introduite accidentellement d’Am\u00e9rique du sud en Afrique, la hyacinthe d’eau pourrait s’av\u00e9rer \u00eatre un \u00e9norme producteur d’\u00e9nergie. Aujourd’hui, nuisance absolue, on cherche \u00e0 s’en d\u00e9barrasser, envahissante, elle colonise les cours d’eau et les lacs des pays tropicaux, mais elle a un potentiel \u00e9nerg\u00e9tique sans \u00e9gal. Jugez en. 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