{"id":70311,"date":"2023-08-21T16:19:27","date_gmt":"2023-08-21T14:19:27","guid":{"rendered":"https:\/\/www.wedemain.fr\/?post_type=epkb_post_type_1&p=70311"},"modified":"2023-08-21T17:57:24","modified_gmt":"2023-08-21T15:57:24","slug":"a-beaumont-une-premiere-nappe-phreatique-artificielle","status":"publish","type":"epkb_post_type_1","link":"https:\/\/www.wedemain.fr\/initiatives-territoires\/regions\/auvergne-rhone-alpes\/a-beaumont-une-premiere-nappe-phreatique-artificielle\/","title":{"rendered":"\u00c0 Beaumont, une premi\u00e8re nappe phr\u00e9atique artificielle"},"content":{"rendered":"\n

\ud83d\udeb0 Ard\u00e8che, Beaumont (07) \u2014 Comment \u00e9viter les coupures d\u2019eau quand votre village passe de 250 \u00e0 1 300 habitants en juillet-ao\u00fbt, au moment o\u00f9 des s\u00e9cheresses de plus en plus s\u00e9v\u00e8res tarissent l\u2019unique source de la commune ? C\u2019est l\u2019\u00e9quation qu\u2019a d\u00fb r\u00e9soudre le village sud- ard\u00e9chois de Beaumont, o\u00f9 sa rivi\u00e8re la M\u00f4le voit son d\u00e9bit quotidien passer de 200 m3 en hiver \u00e0 moins de 60 en \u00e9t\u00e9.<\/p>\n\n\n\n

\"beaumont,
Aper\u00e7u de Beaumont, en Ard\u00e8che. Cr\u00e9dit : Bertrand louis \/ Shutterstock.<\/figcaption><\/figure>\n\n\n\n

\ud83c\uddf2\ud83c\uddec La solution est venue de Madagascar ! Thierry Labrosse, ing\u00e9nieur fran\u00e7ais install\u00e9 dans ce pays, y a construit des dizaines de nappes phr\u00e9atiques artificielles, avant que la technique soit promue par l\u2019ONU et l\u2019ONG Action contre la faim. Un r\u00e9servoir enterr\u00e9 de 600 m3 Pourquoi ne pas faire de m\u00eame \u00e0 Beaumont \u00ab\u00a0pour \u00e9viter qu\u2019\u00e0 l\u2019avenir, nous soyons contraints de rationner l\u2019eau \u00e0 certaines heures de la journ\u00e9e\u00a0\u00bb, questionne l\u2019ancien maire Pascal Waldschmidt, \u00e0 l\u2019origine du projet. <\/p>\n\n\n\n

\ud83d\udca6 Un r\u00e9servoir enterr\u00e9 de 600 m3 a \u00e9t\u00e9 creus\u00e9 avec, \u00e0 l\u2019int\u00e9rieur, une b\u00e2che g\u00e9ante et un d\u00e9riv\u00e9 du sable, la pouzzolane. Cette roche volcanique filtrante extraite de carri\u00e8res proches permet d\u2019\u00e9liminer les bact\u00e9ries et de conserver la potabilit\u00e9 de l\u2019eau, comme dans une nappe phr\u00e9atique naturelle. \u00ab\u00a0Les civilisations antiques avaient d\u00e9j\u00e0 d\u00e9couvert le proc\u00e9d\u00e9\u00a0\u00bb, pr\u00e9cise Pascal Waldschmidt. <\/p>\n\n\n\n

\ud83c\udf43 Le r\u00e9servoir se remplira pendant l\u2019hiver et le printemps, quand la moiti\u00e9 du d\u00e9bit de la source n\u2019est pas consomm\u00e9e et sera utilis\u00e9e l\u2019\u00e9t\u00e9, \u00e0 raison de 10 \u00e0 15 m3 par jour. Le co\u00fbt de l\u2019investissement se limite \u00e0 84 000 euros, financ\u00e9 par l\u2019\u00c9tat et le d\u00e9partement. La nappe phr\u00e9atique artificielle de Beaumont est une premi\u00e8re en France. Avec son co\u00fbt r\u00e9duit et le changement climatique, ses initiateurs ne doutent pas qu\u2019elle fasse \u00e9cole. <\/p>\n\n\n\n

Pour aller plus loin\u00a0: B<\/a>eaumont.fr<\/a><\/strong><\/p>\n\n\n\n

\u00c0 lire aussi\u00a0: Un habitat social dans une ch\u00e2taigneraie en Ard\u00e8che<\/a><\/strong><\/p>\n\n\n\n

SOUTENEZ WE DEMAIN, SOUTENEZ UNE R\u00c9DACTION IND\u00c9PENDANTE<\/strong>
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En Ard\u00e8che, \u00e0 Beaumont, un ing\u00e9nieur a cr\u00e9\u00e9 une nappe phr\u00e9atique artificielle en s’inspirant de l’exemple de Madagascar.<\/p>\n<\/div>","protected":false},"author":166,"featured_media":70316,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"epkb_post_type_1_category":[11837,11853],"epkb_post_type_1_tag":[],"acf":[],"yoast_head":"\n\u00c0 Beaumont, une premi\u00e8re nappe phr\u00e9atique artificielle - WE DEMAIN<\/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:\/\/www.wedemain.fr\/initiatives-territoires\/regions\/auvergne-rhone-alpes\/a-beaumont-une-premiere-nappe-phreatique-artificielle\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c0 Beaumont, une premi\u00e8re nappe phr\u00e9atique artificielle - 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