| dc.description.abstract | In recent years, due to the rising awareness of water environmental protection in Taiwan, Environmental Protection Administration (EPA) revised and announced Effluent Standards the expansion of heavy metals in 2016. , and the local government designated total water pollution control areas or tightened Effluent Standards. The industry must take more effective measures water treatment technology. On the other hand, in order to promote the sustainable use of water resources and promote the development of renewable water resources, Electro-coagulation (EC) technology has gradually received attention, because of better treatment effect and potential for waste water recycling, compared with the traditional chemical coagulation method, this technology has many advantages. It has more advantages in wastewater treatment, and can be combined with other water treatment technologies to enhance the application value of this method. In addition, in wastewater recycling technology, because of its better treatment efficiency, it can also be used as a pretreatment application for membrane treatment procedures.
In this study, the influence factors of the EC method are sorted out, and the water quality conditions of the case plant are analyzed. The biggest difference from most EC studies is that this study will use continuous flow for wastewater treatment. First, determine the most important parameters of the reaction tank in the entire EC procedure, including electrode material, inter electrode distance, electrodes arrangement, etc. Furthermore, in the research process, the initial pH value and the current density were used as experimental variables, and by changing these two most important operating parameters for EC, an optimal operating condition range was made. Experimental results, with an optimum initial pH of 8.5, and operating at 40 A to 45 A for low/medium conductivity wastewater and 45 A to 50 A for high conductivity wastewater. In the end, by synthesizing various influencing factors and reaction phenomena, points that should be paid attention to in operation and common problems are put forward, hoping to be used as a basis for the design and operation of other factories in the future.
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