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年度	112	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	中原大學	申請系所	環境工程學系
專案主持人	游勝傑	職等/職稱	教授
專案中文名稱	利用礦物棉避免農地再污染之自然解方
中文關鍵字	礦物棉,自然解方
專案英文名稱	Nbs Using Mineral Wool to Prevent Recontamination of Agricultural Land
英文關鍵字	Mineral Wool,Nbs
執行金額	865,000元
執行期間	2024/1/1 至 2024/12/31
計畫中文摘要	本研究以100 %天然環保的火山岩製成的材料，稱之為礦物棉(MW)，並將其進行表面改質，並利用標準品及實際灌溉用水測試其吸附效率。 在僅添加標準品的研究顯示，經過處理之相同重量但不同體積的MW(原始)、AMW(酸處理)、HMW(熱處理)和GMW(破碎)對水溶液中NOM、COD、磷酸鹽及鉻的去除能力差異甚大，結果顯示MW對於NOM、COD及磷酸鹽表現出最佳的去除效率（約50%-88%），而去除水中鉻的效率非常低(約5 %)；接著本研究探討不同反應溫度、pH值及時間對於MW去除率的影響；結果顯示25 oC升至35 oC的溫度變化並未顯著提高MW去除水溶液中NOM、COD、及鉻的能力，而去除磷酸鹽的效率隨著溫度的升高而提高，在30°C和35°C時，PO₄³- 的去除效率分別提高到92%和96%；隨著pH值從5.0變化至7.0，MW表面電荷發生變化，因此在酸性條件（pH 5）下比中性pH值（如6和7）皆獲得了較好的結果；隨著水中污染物濃度的增加，礦物棉有效去除能力會因為所謂的吸附飽和現象而降低，因此去除NOM及COD以較低污染物濃度顯示出較高去除能力(濃度10 ppm去除率約為90%)，而磷酸鹽及鉻的去除效率沒有顯著差異。 本研究接者以10處實際灌溉用水進行吸附測試，該等灌溉用水中污染物平均含量分別為鎘0.02769 mg/L、鉻0.01133mg/L、鉛0.0209mg/L，經吸附測試後，各組之濃度與初始濃度差異性不大，這可能是設備偵測極限與實驗誤差的關係，接著本實驗從此十處實際灌溉用水選擇三處添加鎘、鉻與鉛重金屬標準品使其初始濃度均為10mg/L，經吸附後其去除率約為17.2%、99.9%以及90.0%，顯示該材料須藉由天然環境中某些物質的反應後方能捕捉於礦物棉，並可有效去除水中之重金屬以避免農田再污染。
計畫英文摘要	This study introduces a 100% natural and environmentally friendly material made from volcanic rock, referred to as Mineral Wool (MW). Surface modification of MW is conducted using different compounds to activate its surface. Subsequently, experimental and control groups are subjected to the same wastewater samples and operating conditions for adsorption testing, observing the effects of flow rate, system temperature, residence time, and operational efficiency, along with kinetics, isotherms, thermodynamics, regeneration, equilibrium, leaching, and other effects. A comprehensive mechanism, all contained within a single filtration medium, is designed to prevent soil and groundwater pollution in agricultural land and improve the quality of irrigation water. Initial findings suggest that MW, AMW, HMW, and GMW, treated with the same weight but different volumes, demonstrate varying degrees of removal efficiency for NOM, COD, phosphate, and chromium from aqueous solutions. MW exhibits the best removal efficiency (approximately 50%-88%) for NOM, COD, and phosphate,the efficiency of removing chromium from water is very low (about 5%).The study further investigates the influence of different reaction temperatures, pH values, and times on MW removal rates, revealing that temperature changes from 25°C to 35°C do not significantly enhance MW's ability to remove NOM, COD, and chromium from aqueous solutions. However, the efficiency of phosphate removal increases with temperature, reaching 92% and 96% at 30°C and 35°C, respectively. As the pH value shifts from 5.0 to 7.0, changes in MW surface charge occur, resulting in better results under acidic conditions (pH 5) than under neutral pH values (6 and 7). With an increase in pollutant concentration in water, the effective removal capacity of mineral wool decreases due to adsorption saturation. Hence, higher removal capacities are observed for NOM and COD at lower pollutant concentrations (approximately 90% removal rate for a concentration of 10 ppm), while there is no significant difference in the removal efficiency of phosphate and chromium. In this study, 10 actual irrigation water were used for adsorption tests. The average pollutant contents in the irrigation water were cadmium 0.02769 mg/L, chromium 0.01133mg/L, and lead 0.0209mg/L. After adsorption test, there is only few difference between final adsorption and initial concentration. This may be due to the detection limit of the equipment and the experimental error. Three of the ten irrigation water samples were selected to add standard Cd, Cr and Pb solution to make the initial concentration 10mg/L. The removal efficiency of Cd, Cr and Pb are approximately 40%, 99.7% and 99.6%, indicating that the material must be captured in mineral wool through the reaction of certain substances in the natural environment, and can effectively remove heavy metals in irrigation water to avoid re-pollution of farmland.