隨著工業發展而產生更多氨氮廢棄物，因此，政府針對氨氮排放量管制標準也逐漸提高，相關產業需要更有效率的氨氮處理程序。本研究主要是以電解法去除廢水中氨氮的方式，並應用離子交換樹脂提濃廢水中氨氮之程序，增加電解法處理效能，同時解決氯胺排放的問題。分析各操作參數，包含電解質種類、電解質濃度、水體流率、電流密度、反應pH區間以及氨氮初始濃度來探討氨氮去除速率的影響；另外，配製低濃度之氨氮廢水與含鈣氨氮廢水模擬實際情況，評估離子交換樹脂結合電解法去除氨氮之可行性。實驗中，測量氨氮濃度、殘留餘氯濃度來判斷不同條件下的氨氮去除速率，並針對電解產生之尾氣進行分析，以確認反應機制。
實驗結果顯示，電解質添加3 wt%NaCl、系統水體流率1 L/min、電流密度10 mA/cm2以及反應pH區間7-8時，為本系統最佳的操作參數，同時，在探討電解質種類對去除速率影響實驗時，搭配質譜儀與銨離子選擇性固態電極的分析結果，可推論電解法去除氨氮的反應途徑主要為間接氧化，且氨氮可經電解後轉變成無害之氮氣，其選擇率約43.2%。應用離子交換程序結合電解法處理水中氨氮的複合系統可以提高電解效能，同時也能將氯胺保留於再生劑中，減少有毒物質排放。Na型SSTPPC60樹脂吸附氨氮與電解再生的效果優於H型的SGC650H樹脂，其在氨氮濃度100 ppm、廢水流速為20 BV時的離子交換容量約為1.3 meq/mL，可穩定的吸附氨氮，未來可依此概念設置試驗級的系統進行實場測試，達到商業化之目的。

Ammonia-nitrogen wastes were increased with the development of industry, resulting in the government sets stricter relative standards. The industries need more efficient procedures for ammonia-nitrogen treatment. This study majorly focused on removal of ammonia via electrolysis process, where its efficiency was further improved by increasing the ammonia concentration with using ion exchange resins. The problem of chloramine emissions could be avoided via this process. Effects of operating parameters, such as kind of electrolyte, electrolyte concentration, liquid flow rate, current density, pH range, and initial ammonia nitrogen concentration on the removal rate of ammonia nitrogen were investigated, respectively. In addition, the feasibility of combination of ion exchange resin and electrolysis was evaluated by using simulated wastewater, which exhibited low-concentration ammonia and calcium cations. In the experiment, measurement of ammonia nitrogen concentration and residual chlorine concentration were applied to determine ammonia removal rate under various conditions. The exhausted gas produced from electrolysis was also analyzed to confirm the reaction mechanism.
A series of experiment indicated the optima operating conditions for this system were 3 wt% of NaCl, 1 L/min of liquid flow rate, 10mA/cm2 of current density, and pH 7-8. Meanwhile, in the study of effect of electrolytes, the analytic results of the mass spectrometer and the ammonium selective electrode showed the ammonia was removed through indirect oxidation and converted to harmless nitrogen gas with about 43.2% of selectivity. This hybrid system of ion exchange and electrolysis procedures not only enhances electrolysis efficiency but also reduces emission of toxic materials, resulting from retaining chloramine in the regenerant. Na-type SSTPPC60 resin was more effective than H-type SGC650H resin in terms of adsorbing ammonia. Under the condition of 100 ppm ammonia and 20 BV wastewater flow rate, Na-type SSTPPC60 resin achieved approximately 1.3 meq/mL of ion exchange capacity. In the future, a pilot can be set up for field test based on this concept to achieve the purpose of commercialization.

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