The aim of the present research was to examine the effect of applying air microbubbles in the conventional electrocoagulation cell. Iron electrodes were used for the electrocoagulation process and a microbubble diffuser was used to generate microbubbles for the integrated flotation process. The optimum value of each operating variable (i.e pH, current density, air microbubbles flow rate, and electrolysis/flotation time) was determined experimentally in order to provide the maximum removal efficiency by this system. It was demonstrated that the introduction of microbubbles into the electrocoagulation unit significantly enhanced the dye degradation efficiency due to their buoyancy and high surface area to volume ratio which help to quickly remove pollutants. Removal efficiency of 96 % was achieved with microbubbles compared to only 70.75 % by a no-bubbles based system under the same operating conditions of 6 min electrolysis/flotation time, pH 7, 2.5 ml/min air flow rate and 10 mA/cm² current density. Results from the present work indicate that the combination of electrocoagulation with microflotation could be an effective and economic method for reducing the concentration of dissolved pollutants in water like dyes.

本研究的目的是研究在常规电凝池中施加空气微泡的效果。铁电极用于电凝过程，微泡扩散器用于产生微泡，用于集成浮选过程。为了通过该系统提供最大去除效率，通过实验确定了每个操作变量的最佳值（即pH，电流密度，空气微气泡流速和电解/浮选时间）。已经证明，由于微气泡的浮力和高的表面积/体积比，有助于将污染物快速去除，因此将微气泡引入电凝装置可显着提高染料的降解效率。微气泡的去除效率为96％，而只有70％。²电流密度。目前工作的结果表明，电凝与微浮选相结合可能是一种有效而经济的方法，可以降低水中溶解性污染物（如染料）的浓度。