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題名 | 核一、二廠回收廢水總有機碳抑低先導系統建立及測試=Establishment and Performance Test of TOC Degradation Pilot System of Recovered Wastewater from 1st and 2nd Nuclear Power Plants |
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作者 | 鍾人傑; 黃慶村; 沈錦昌; 陳乂平; 溫冬珍; | 書刊名 | 台電工程月刊 |
卷期 | 689 民95.01 |
頁次 | 頁1-13 |
分類號 | 445.46 |
關鍵詞 | 總有機碳; 化學氧化破壞; 蒸發; 逆滲透; 離子交換; Total organic carbon; Chemical oxidation destruction; Evaporation; Reverse osmosis; Ion-exchange; |
語文 | 中文(Chinese) |
中文摘要 | 核能電廠為了達到廢水回收再使用的目標,分佈於廠內不同位置的許多集水池所收集的廢水,必需回收處理至高純水的水質標準,再回至補水系統中循環使用。根據EPRI 2000年版管理指標規定,處理後之水質回收至系統中循環使用前,總有機碳濃度需降至低於200 ppb的標準。許多應用於工業廢水處理的商業化技術,無法達到此一高純度水質的要求,因此需要發展一種有效的處理程序來解決此一問題。 在本研究中使用核研所自製特殊配方的氧化劑測試對於這些回收廢水的處理效果,由實驗室的測試結果顯示化學氧化破壞方式是所有技術中最好的TOC降解方法,藉由加入少量氧化劑及在適當條件下反應,能有效降低TOC的濃度至小於150 ppb。儘管如此,處理後之水溶液仍須再進一步處理去除殘留的雜質使達到高水質標準。根據上述需求,藉由結合蒸發、RO薄膜分離及離子交換等技術的3種混合程序被發展及應用於核電廠回收水水質的改善,包括(1)TOC降解-蒸發-離子交換,(2)TOC降解-薄膜分離-離子交換,及(3)薄膜分離-離子交換等流程。實驗結果顯示經由這些流程處理後之水質電導度低於1µs/cm,完全符合EPRI 2000年版回收水管理指標規定。 此外亦完成一組每小時20公升處理量的移動式先導處理系統,安裝於核二廠,取來自於現場收集槽之回收廢水進行效果驗證,證實上述所發展流程之處理效果均能符合回收之水質標準,所有實驗結果將被使用作為未來全尺寸放大設計之參考依據。 |
英文摘要 | In order to achieve the goal of recycling of the wastewater collected from various water sump distributed in different locations of nuclear power station, to develop a treatment to meet the requirements of high purity of recovered water is inevitably necessary. According to EPRI 2000 guidelines, the TOC concentration of treated effluent must be lower than 200 ppb before recycling to system. Several commercial technologies that have been applied for treatment of industrial wastewater do not attain to this demand of high water quality. As a result, it is needed to develop an effective treatment process to solve this problem. In this project, we test the treatment efficiency of these organic wastewater using special formulated oxidants made by INER. We conclude from the experimental results that chemical oxidation destruction is the best TOC degradation method among the available technologies. The TOC concentration can be effectively reduced to minimum level of less than 150 ppb with adding small amount of oxidants and reacting at suitable conditions. However, treated effluent still needs to remove other impurities to attain high water quality. According to these requirements, three kines of treated processes are developed by combining distillation, reverse osmosis and ion exchange technologies including (1) TOC degradation-distillation-ion exchange, (2) TOC degradation- reverse osmosis-ion exchange, and (3) reverse osmosis-ion exchange. Experimental results show that the conductivity of the treated wastewater by these processes is lower than 1 µs/cm, and the quality of the treated solution completely meets the recycling standard of the EPRI 2000 guidelines. In addition, a mobile pilot system with capacity of 20L per hour had also been established and transported to 2nd nuclear power station for the performance test of recovered wastewater from collection tank. The treatment efficiency of the developed process has been certified. All the experimental results will be used as criteria for a full-scale design in the future. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。