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Coal Chemical Wastewater RO Membrane Zero Discharge

Frequent cleaning: Weekly acid washing (HCl) + alkali washing (NaOH) + surfactant cleaning is required, with downtime accounting for 25%. Membrane replacement cost: Membrane lifespan is shortened to 0.5-1 year,...

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Removal Process of Organic Colloidal Pollution in Municipal Wastewater

Compared to traditional processes, this scheme adds enhanced coagulation/flocculation facilities and high-efficiency sedimentation tanks, increasing initial investment. The main increase in operating costs is due to chemical expenses (coagulants, flocculants)...

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