環境資源報告成果查詢系統

113年廢水氨氮資源化技術示範推廣

中文摘要 面對氨氮廢水排放標準逐步加嚴,多年來持續開發新興廢水處理技術,積極將廢水中氨氮分離以進行資源循環再利用,本年度擬延續多年來發展氨氮廢水處理技術之成果,精進包含「電容式氨氮富集系統」與「節能型氨氮氣提系統」之廢污水氨氮資源化技術,並規劃並於次年度開始逐步進行技術放大、模廠驗證、最後進行技術移轉與示範推廣工作,以達成促使業者善加利用廢水含氮物質等有價資源,產官學共同攜手合作,邁向廢水「淨零碳排,資源循環」目標。 今年度計畫擬基於過去計畫執行成果,建置一套半自動化實驗室規模「電容式氨氮富集系統」,針對低濃度不易處理之工業氨氮廢水,透過充電/放電操作模式之調控,於充電吸附過程分離水中銨離子,進行水再生處理,同時,於放電脫附過程,藉由系統程控之設計,進行系統內循環操作,有效富集銨離子,確保完整放電階段排出之氨氮濃縮液皆達到目標濃縮濃度,並將控制模式由過去3種模式(脫鹽、再生與濃排)切換改成5種模式(脫鹽、再生、提濃、濃排與補水)切換,提升後續資源循環處理程序之效率。透過高效氨氮提濃技術完成氨氮富集濃縮後,進一步提出「節能型氨氮氣提系統」,將熱能自淋洗液(鹽酸或純水)轉移至提濃後之氨氮廢水,透過增溫提升氨氮廢水的氨氮氣提分離效率,並透過降低淋洗液溫度,提升淋洗液中氨濃度,將廢水中氨氮提煉再製為氨水。 最終依循生命週期評估方法,計算碳排量化環境效益,提出技術發展建議,最大化氨氮廢水處理減碳效益,以達到資源循環、淨零排放之目標。此外,藉由專家諮商會議,彙整來自產、官、學之各界建議,提出淨零排放-廢水氨氮資源化技術之改善建議,並辦理現地訪談進行氨氮廢水處理技術交流,針對業者所遇到之問題提供改善建議方案,來協助業者提高氨氮廢水處理技術之處理效能。
中文關鍵字 氨氮廢水處理、薄膜電容富集單元、氣提循環回收單元

基本資訊

專案計畫編號 經費年度 113 計畫經費 6580 千元
專案開始日期 2024/03/20 專案結束日期 2024/11/30 專案主持人 侯嘉洪
主辦單位 環境部水質保護司 承辦人 陳立中 執行單位 國立臺灣大學

成果下載

類型 檔名 檔案大小 說明
期末報告 20241226_113年廢水氨氮資源化技術示範推廣_成果報告(定稿本).pdf 11MB

The 113th Year Demonstration and Promotion of Ammonia Nitrogen Resource Recovery Technology in Wastewater

英文摘要 Facing the increasingly stringent ammonia nitrogen wastewater discharge standards, there has been a continuous development of emerging wastewater treatment technologies over the years, aiming to separate ammonia nitrogen from wastewater for resource recycling and reuse. This year, building on the results of previous ammonia nitrogen wastewater treatment technologies, the focus will be on refining the ammonia nitrogen resource recovery techniques, including the "Capacitive Ammonia Nitrogen Enrichment System" and the "Energy-Efficient Ammonia Nitrogen Stripping System." Plans are in place to gradually scale up the technology, conduct pilot plant verification, and proceed with technology transfer and demonstration promotion starting next year. The ultimate goal is to encourage the industry to make good use of valuable nitrogen resources in wastewater, fostering collaboration between the industrial, governmental, and academic sectors to move toward the goal of "net-zero carbon emissions and resource recycling" in wastewater treatment. This year's project plans to build a semi-automated laboratory-scale "Capacitive Ammonia Nitrogen Enrichment System" based on the outcomes of previous projects. It targets industrial ammonia nitrogen wastewater with low concentrations that are difficult to treat. Through the regulation of the charging/discharging operation mode, ammonium ions will be separated from the water during the charging adsorption process for water regeneration. At the same time, during the discharging desorption process, system circulation operations will be conducted through system-controlled design, effectively enriching ammonium ions. This ensures that the ammonia nitrogen concentrate discharged during the complete discharging phase reaches the target concentration. The control modes will be upgraded from the previous three modes (desalination, regeneration, and concentration discharge) to five modes (desalination, regeneration, concentration, concentration discharge, and replenishment), enhancing the efficiency of subsequent resource recycling processes. After ammonia nitrogen enrichment and concentration is completed using high-efficiency ammonia nitrogen concentration technology, the "Energy-Efficient Ammonia Nitrogen Stripping System" will be introduced. Heat will be transferred from the washing solution (hydrochloric acid or pure water) to the concentrated ammonia nitrogen wastewater, improving the ammonia nitrogen stripping and separation efficiency by raising the temperature of the ammonia nitrogen wastewater. Additionally, by lowering the temperature of the washing solution, the ammonia concentration in the washing solution is increased, allowing the ammonia nitrogen in the wastewater to be refined and reused as ammonia water. Finally, following the life cycle assessment method, carbon emissions will be quantified to calculate the environmental benefits, and recommendations for technology development will be proposed to maximize the carbon reduction benefits of ammonia nitrogen wastewater treatment, aiming to achieve the goals of resource recycling and net-zero emissions. Moreover, through expert consultation meetings, suggestions from various sectors, including industry, government, and academia, will be consolidated to propose improvements for net-zero emissions and ammonia nitrogen resource recovery technology. On-site interviews will also be conducted to facilitate ammonia nitrogen wastewater treatment technology exchanges, providing solutions to the issues encountered by industry players and helping them improve the efficiency of their ammonia nitrogen wastewater treatment technologies.
英文關鍵字 Ammonia-nitrogen wastewater treatment, Membrane capacitive deionization unit, Air stripping recycling unit