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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/69140

    Title: 離子交換樹脂廠內再利用可行性之研究;A feasibility study on the recycling of Ion Exchange Resin in plants
    Authors: 張亦成;Chang,Yi-cheng
    Contributors: 環境工程研究所在職專班
    Keywords: 離子交換;水回收;超純水;管柱試驗;機台分流;ion exchange;water recycling;ultrapure water;column test;machine shunt
    Date: 2015-07-27
    Issue Date: 2015-09-23 15:30:01 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 高科技電子業是台灣跨向新世紀的重要產業之一,而廢棄物轉變為有用資源是科技業邁向成功與否的重要關鍵,電子產業因經濟發展及科技日新月異下,如何發展具可行性之離子交換樹脂回收應用技術,將有助於企業節省成本並提昇競爭力。
    ;The high-tech electronics industry has become one of the important industries in Taiwan in the 21st century, and the ability to convert wastes to useful resources is a critical factor that determines the success of the technological industry. Therefore, with rapid economic and technological developments, it is essential for the electronics industry to develop feasible applied technologies for the recycling of ion exchange resin (IER), so that companies can save costs and be more competitive.
    The subject of this study is the waste IER that has been recovered after being used in the IER tower of the electronics ultrapure water system. The wet cleaning process implemented in plants consumes vast quantities of water during the manufacturing process. Therefore, the first step is to study the waste water quality of the manufacturing process and investigate the characteristics of wastewater collected from different units simultaneously. Next is the design of drainpipes for shunting water as a safety measure before the wastewater is channeled into the recycling equipment. Subsequently, an annual amount of recyclable resin of 3,500 L is being used for recycling research to determine the optimal operating parameters. An evaluation of the economic benefits of wastewater recycling is finally made based on existing conditions.
    The study findings indicate that the recovered IER can be regenerated using the regenerating agent. When the amount of the regenerating agent was controlled at 5 BV (300 ml), the best performance (with a regeneration rate of up to 98%) was achieved with 4% NaOH.
    From the perspectives of sustainable water resources management and clean production, our in-depth analysis shows that there is a much higher feasibility of treating wastewater and recycling IER using the proposed system than direct discharge after wastewater treatment. The proposed recycling method not only enhances recovery rates during the manufacturing process, but can also help derive economic benefits while reducing the impact on the environment.
    Appears in Collections:[環境工程研究所碩士在職專班] 博碩士論文

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