For conventional wastewater treatment process

the pharmaceutical and personal care products (PPCPs) represented by ibuprofen in municipal wastewater have problems such as weak degradation efficiency

complex structure

and high activation energy. Therefore

based on the internal operational characteristics of biological aerated filter (BAF) and three dimensional electrocatalysis (TDE)

a TDE-BAF was constructed to treat ibuprofen in municipal wastewater. Test results revealed that the ibuprofen removal efficiency of TDE-BAF was higher than that of BAF. With water temperature of (21.14±0.05) ℃

COD of (86.82±3.40) mg/L

TOC of (27.56±1.08) mg/L

ibuprofen of (93.2±5.16) μg/L

and ammonia nitrogen of (18.75±2.39) mg/L

the effluent concentrations of ibuprofen were 2.28-9.32 and 57.70-77.12 μg/L

and the average removal rates were 93.48% and 31.89%

which was 61.59% higher than BAF treatment. The removal of ibuprofen by TDE-BAE was mainly in the TDE area (T5-T6)

and the removal rate reached 51.78%

accounting for 55.40% of the total removal rate. The mechanism of TDE-BAF degradation of ibuprofen is mainly through the synergistic effect of the TDE and the BAF.