Fig. 3From: Degradation of paraquat herbicide using hybrid AOP process: statistical optimization, kinetic study, and estimation of electrical energy consumptionResponse surface graphs of the variation in DE versus (a) the initial pH and the PS amount (mg L−1), b the initial pH and the PI amount (mg L−1) ([PQ] = 30 mgL−1 and T = 25 °C)Back to article page