Biotrickling filtration of complex pharmaceutical VOC emissions along with chloroform

► Performance of biotrickling filter treating a mixture of VOCs was evaluated. ► Methanol, ethanol, acetone, toluene and chloroform were the pollutants studied. ► Effects of ILR and EBRT on EC and removal efficiency were evaluated. ► EC was 100% up to an ILR of 240 g/m3/h of mixed pollutants without chloroform. ► EC was 100% up to chloroform ILR of 14 g/m3/h.