废水中微细颗粒的逆流电解浮除法运行条件研究

Countercurrent Electrolysis Fine Particles Floating in Wastewater Research Division Operating Conditions

含微细颗粒废水进槽体上端进流(由槽体底端出流)使水流方向与底层电解产生气泡上浮方向,形成逆向流况,并透过流况分别观察其颗粒—气泡碰撞行为,探讨其对浮除效率的影响.由电解产气易于获取较稳定的粒径及均匀分布特性,有利于控制电解产气量及水力负荷流况,以获取较稳定的实验条件,探讨较佳流况条件.另外,经由SS/重金属去除率及粒径监控分析,分别评估其浮除成效及其最适合操作条件.研究结果显示,于较大流量92m L/min时,应适度调升电流2Amp(即产气量)搭配,则浮除效率仍可达88%,亦即可提高处理负荷.

The objective of this project is to upgrade the performance of the flotation. According to the modification of the condition of bubble and flow condition（counter flow, laminar flow, turbulent flow） was consideredin this project. The characteristics（feature） of the advances flotation is with the counter-current, bubble blanket at the bottom layer, foam/sludge layer reflux/filtration at the upper layer. The results indicate that an enhamce ment of a high flow rate 92ml/min and increasing a suitable electricity-current 2Amp（the same as increasing the gas grow rate） cead to removal efficiency 88%. of suspended solid.