🌐EnglishEnglishFrançaisNederlandsPortuguêsالعربيةEntityQ3437274· pop 5· linked from 7 articlesactivated sludge modelGroup of mathematical methods coordinated by the International Water Association (IWA)Available in 5 languagesFrançaisPortuguêsالعربيةNederlandsvia Wikidata sitelinks · CC0ConnectionsInternational Standard Book NumberEntitybiomassEntityCategoriesSewerage