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年度	111	專案性質	實驗性質
專案類別	研究專案	研究主題	整治
申請機構	中臺科技大學	申請系所	環境與安全衛生工程系
專案主持人	張益國	職等/職稱	副教授
專案中文名稱	3D列印製做水力漩流管應用於油污染土壤處理暨後續CLSM再利用研究
中文關鍵字	3D列印,水力漩流,控制性低強度回填材料
專案英文名稱	Applying 3D-printed hydrocyclone for oil-contaminated soil treatment and use of hydrocyclone underflow stream soil in CLSM
英文關鍵字	3D printing, hydrocyclone, CLSM
執行金額	870,000元
執行期間	2022/5/1 至 2023/4/30
計畫中文摘要	本研究以電腦模擬，輔助開發3D列印水力漩流管，再以油污染土壤實驗驗證成效。研究結果顯示於11 m/s進流條件送漿入3D列印水力漩流管，overflow stream 中78.7%顆粒粒徑均在63μm 以下、underflow stream 中，87.6%在63μm以上。此外，製作同尺寸不鏽鋼水力漩流管裝設於實廠，於11 m/s 流速下underflow stream土壤TPH 為575 mg/kg，underflow stream土壤符合土壤污染管制標準。 另外，將underflow stream土壤20%、50%、100%取代天然細粒料進行控制性低強度回填材料（CLSM）製做。underflow stream土壤含水率23.0%、氯離子含量0.011%等尚符需求。不同摻配比例拌合之CLSM 產品其坍流度、水溶性氯離子含量、抗壓強度、TPH 分析結果等符合控制性低強度回填材料需求，成功將經水力漩流分離underflow stream 土壤再利用產製CLSM 產品，創造減廢及循環經濟價值。
計畫英文摘要	In this work, the FLUENT flow simulations are help to calculate the cut-off size and fractional efficiencies in hydricyclone separators. The demonstration of liquid-solid flow behavior and the simulation results are feedback to the new hydrocyclone dimensions design. Furthermore, a 3D-printed hydrocyclone was made and was used for oil-contaminated soil treatment. The 3D-printed hydrocyclone performance validations are achieved by comparing the results of coarse/fine particle separations. In addition, stainless steel hydricyclone separator was manufactured with the same dimention of 3D-printed hydrocyclone and was installed in the factory. Under the flow rate of 11 m/s, the TPH of the underflow stream soil was 575 mg/kg, which could meet the TPH regulation below 1,000 mg/kg of Soil Pollution Control Standard in Taiwan. Besides that, the soil from hydrocyclone underflow stream with low TPH-concentration was reutilized as fine aggregates used in controlled low strength materials (CLSM) manufacturing. The soil and subsequence CLSM product pass the slump flow test, water soluble chloride ion content test, compressive strength test, CLSM TPH-content test. It implied that the coarse particles from hydrocyclone separation might be an reutilization materials alternative.