Fig. 4From: Integrated electrochemical processes for textile industry wastewater treatment: system performances and sludge settling characteristicsCOD and BOD/COD ratio for the textile wastewater before and during treatment: EC with pH = 8.75 at I = 20 mA cm− 2 followed by EF, PC and AO with pH = 3 and I = 10 mA cm− 2Back to article page