Study of Steel Slag Filter Unit as a Secondary Treatment System for Removing Total Phosphorus from Textile Industry Wastewater

Eutrophication is one of the global concerned due to algae bloom in natural surface water such as lakes and swamp area. Industrial effluent with incomplete treatment discharged has become main culprits this phenomenon. Approximately, 0.3 – 13 mg/L total phosphorus can be found final discharge industrial showing that existing including an activated carbon filter (ACF) limitation polishing phosphorus. Therefore, 16 week study been designed alternative removal at secondary stage replace tertiary by using steel manufacturing by-product media for effective from textile industry wastewater. Two units lab-scale vertical slag (SSF) systems under aerated unaerated conditions have developed study. The samples were collected analysed biweekly selected parameters pH, alkalinity, DO TP. results obtained show a high efficiency TP which ranged 46% 70% compared SSF 37% 66%. Besides, ACF was 36% 54%. Thus, use removing wastewater possible used both systems. Furthermore, mechanism involved likely precipitation adsorption.