Analysis of aeration biological filter+activated carbon adsorption for upgrading and renovation of wastewater treatment plants
MA Shanshan
Abstract：In response to the upgrading requirements for the secondary Ⅳ-class effluent of an industrial wastewater treatment plant,in order to meet the surface water Ⅳ-class standards of chemical oxygen demand(COD)≤30.00 mg/L and ammonia nitrogen≤1.50 mg/L,the'aerated biological filter+powdered activated carbon adsorption'process is adopted for enhanced treatment.The results show that the effluent COD is stabilized at 22.00～24.00 mg/L after the renovation,and ammonia nitrogen is lower than 1.00 mg/L under winter low-temperature conditions,both of which were superior to the target limits,achieving a balance between stable compliance and effective operation cost.
Keywords：aerated biological filteractivated carbon adsorptionupgrading and renovationwastewater treatment
Publication Date：2026-02-25
Online Publishing Date：2026-03-31(First online date of this platform, not the publication date of the document)
Pages：4( 118-121 )