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C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F1/00—Treatment of water, waste water, or sewage
C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
C02F1/5281—Installations for water purification using chemical agents
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FR476856D1913-09-151914-09-05Perfectionnements dans les appareils employés pour le traitement des eaux d'égout et autres liquides résiduels
ExpiredFR476856A
(fr)