廢面板玻璃改質玻璃奈米孔洞材料於土壤重金屬吸附應用研究
| 中文摘要 | 土壤重金屬污染為國內重要環境議題之一，過去為了追求經濟發展，工業活動產生含重金屬的廢棄物未經妥善處理即排放至環境中，造成重金屬直接或間接進入土壤並累積於土壤中。受重金屬污染之土壤若做為農業使用，其生長之作物將會吸收土壤中的重金屬，並經由食物鏈輾轉進入人體內造成人體健康危害。本工作團隊已建立面板玻璃改質技術，能將廢棄液晶面板玻璃改質為玻璃奈米孔洞材料，其保留面板玻璃耐酸、耐化特性，且對於多種重金屬皆具有良好的吸附能力，使用後之材料經過脫附、再生後可多次重複使用，為一種兼具環保與高效能的吸附材料。 本計畫將玻璃奈米孔洞材料應用於重金屬污染土壤整治，先以土壤酸洗法將土壤中重金屬萃取至酸洗液中，再以玻璃奈米孔洞材料將酸洗液中的重金屬吸附，使重金屬濃度可低於放流水標準並重複使用。玻璃奈米孔洞材料吸附飽和後可進行脫附再生，回到吸附系統中重複使用，重金屬濃縮後亦可進行回收。土壤酸洗法可將重金屬自土壤中移除，屬於一種積極的整治方式，且酸洗後之土壤經過地力回復後也可以回填現地重複使用，其產生之重金屬廢水以玻璃奈米孔洞材料吸附取代現有的化學混凝沉澱，能大幅減少有毒污泥產生避免二次污染，且能夠減少廢水處理費用，降低整體整治成本。 | ||
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| 中文關鍵字 | 廢液晶面板玻璃、重金屬、土壤污染 | ||
基本資訊
| 專案計畫編號 | EPA-107-XA04 | 經費年度 | 107 | 計畫經費 | 4700 千元 |
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| 專案開始日期 | 2018/01/01 | 專案結束日期 | 2018/11/30 | 專案主持人 | 李念祖 |
| 主辦單位 | 回收基管會 | 承辦人 | 劉倩 | 執行單位 | 財團法人工業技術研究院 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | 廢面板玻璃改質玻璃奈米孔洞材料於土壤重金屬吸附應用研究-期末報告(定稿).pdf | 3MB |
Removal of heavy metals from soil using the green glass adsorbent transformed from waste LCD panel glass.
| 英文摘要 | Heavy metals contaminated rural soil is one of the crucial issue in Taiwan. In the past, industrial waste containing heavy metals was discharged to the environment without disposal properly, causing heavy metals entered and accumulated in the soil. These heavy metals will be adsorbed by plants or crops and finally enter the human body through the food chain then harm people’s health.Our work team has established a LCD panel glass modification technology which transform waste LCD panel glass to green glass adsorbent. Green glass adsorbent not only retains LCD panel glass’ high chemical and acid resistance, but also has high performance in heavy metals removal. This material can be reuse after desorption and regeneration, which makes it become a high efficiency and environment friendly adsorption material. In this project, green glass adsorbent is applied to the remediation of heavy metal contaminated soil. The heavy metal in the soil is extracted into the acid eluent by soil acid leaching method. The acid eluent which contains high concentration of heavy metal ions will be treated by green glass adsorbent until the concentration of heavy metal ions lower than effluent standard, so acid eluent can be reused. Soil acid leaching is a positive method of remediation because it can actually remove heavy metals from the soil, and soil after remedying and restoration is able to backfill to farmland. Waste water containing heavy metal is treated by green glass adsorbent to lower the generation of toxic slurry comparing to chemical coagulation process. Also, using green glass adsorbent can reduce the price of wastewater treatment to reduce the cost of remediation, which is beneficial to practical application. | ||
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| 英文關鍵字 | Waste LCD panel glass, Heavy metal, Soil contamination | ||