Les eaux us\u00e9es des v\u00eatements proviennent principalement des processus de lavage, de teinture et de finition dans la fabrication des v\u00eatements. La qualit\u00e9 de l'eau pr\u00e9sente g\u00e9n\u00e9ralement les caract\u00e9ristiques suivantes :<\/p>\n\n\n\n
1. Forte concentration de mati\u00e8res organiques : Contient de grandes quantit\u00e9s de d\u00e9bris de fibres, d'agents d'encollage (tels que le PVA), de colorants et d'auxiliaires, ce qui entra\u00eene une DCO (demande chimique en oxyg\u00e8ne) et une DBO (demande biochimique en oxyg\u00e8ne) \u00e9lev\u00e9es.<\/p>\n\n\n\n
2. Couleur intense : les eaux us\u00e9es provenant des \u00e9tapes de la teinture et de l'impression ont souvent une couleur intense, en particulier lorsque des colorants synth\u00e9tiques sont utilis\u00e9s, ce qui rend la d\u00e9coloration difficile.<\/p>\n\n\n\n
3. Fluctuations importantes du pH : Selon le proc\u00e9d\u00e9, le pH peut \u00eatre fortement acide (par exemple, d\u00e9capage) ou fortement alcalin (par exemple, \u00e9bullition alcaline), g\u00e9n\u00e9ralement entre 2 et 12.<\/p>\n\n\n\n
4. Teneur \u00e9lev\u00e9e en solides en suspension : Provenant de fibres de tissu, de peluches de coton, de poussi\u00e8res, etc., entra\u00eenant une concentration importante de SS (mati\u00e8res solides en suspension).<\/p>\n\n\n\n
5. Teneur \u00e9lev\u00e9e en sel : Le processus de teinture et d'impression utilise de grandes quantit\u00e9s de sels (tels que le sulfate de sodium et le sel de table) pour favoriser la teinture, ce qui entra\u00eene une augmentation de la conductivit\u00e9.<\/p>\n\n\n\n
6. Toxicit\u00e9 et bioinhibition : Certains colorants, auxiliaires ou m\u00e9taux lourds (tels que les produits de d\u00e9composition des colorants azo\u00efques) sont toxiques pour les micro-organismes, ce qui affecte l'efficacit\u00e9 du traitement biologique.<\/p>\n\n\n\n
Ces caract\u00e9ristiques n\u00e9cessitent une approche globale des processus de traitement des eaux us\u00e9es, combinant des composants physico-chimiques (coagulation et s\u00e9dimentation, par exemple), biologiques (processus A\/O, MBR, par exemple) et de traitement avanc\u00e9 (oxydation \u00e0 l'ozone, adsorption sur charbon actif, par exemple).<\/p>","protected":false},"excerpt":{"rendered":"
Garment wastewater mainly originates from washing, dyeing, and finishing processes in garment manufacturing. Its water quality typically exhibits the following characteristics: 1. High organic matter concentration: Contains large amounts of fiber debris, sizing agents (such as PVA), dyes, and auxiliaries, resulting in high COD (Chemical Oxygen Demand) and BOD (Biochemical Oxygen Demand). 2. Deep color:…<\/p>","protected":false},"author":1,"featured_media":1861,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1,32],"tags":[348,238,226,889,887,888,363,85],"class_list":["post-2350","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-categorized","category-waste-water-treatment-news","tag-activated-carbon-adsorption","tag-biological-treatment","tag-coagulation-and-sedimentation","tag-garment-wastewater-treatment","tag-germent-wastewater","tag-ph-fluctuations","tag-wastewater-discharged","tag-water-quality"],"_links":{"self":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts\/2350","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/comments?post=2350"}],"version-history":[{"count":1,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts\/2350\/revisions"}],"predecessor-version":[{"id":2351,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts\/2350\/revisions\/2351"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/media\/1861"}],"wp:attachment":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/media?parent=2350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/categories?post=2350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/tags?post=2350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}