Mickova, I. L. “Advanced Electrochemical Technologies in Wastewater Treatment. Part II: Electro-Flocculation and Electro-Flotation”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 14, no. 2, Nov. 2015, pp. 273-94, https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/1017.