再利用廢輪胎合成分離膜之新穎技術開發及其可行應用領域測試(3年之第2年)
| 中文摘要 | 由於全球水資源短缺、水循環再利用需求增加等因素，皆促進了高品質薄膜分離技術的市場需求。因此，全球的薄膜市場需求預計將以年率8.6%成長，並於2019年達到264億美元的市場產值。 廢輪胎主要由天然橡膠、合成橡膠、碳黑、鋼絲及纖維所組成；其中所含的有價橡膠資源係合成薄膜材料的主要高分子原料之一，透過脫硫處理，可使廢輪胎中的橡膠回復其一維結構。因此，本計畫以廢輪胎再生膠為原料，開發再利用廢輪胎為分離膜的新穎合成技術，以提升廢輪胎再生料價值及多元的去化管道。 計畫第一年已成功使用熱壓法製備緻密型氣體分離膜，測試結果發現，再生膠膜對CO2/N2選擇率可達12.8且CO2滲透率為161 Barrer。計畫第二年，則開發超濾膜及奈濾膜，並將其應用於染整廠染料廢水處理，以擴展多元應用管道。因此，本計畫第二年則針對染整廠規畫兩階段廢水再利用處理流程，第一階段使用MF/UF再生膠膜過濾膠羽使其達放流水排放標準、第二階段則使用NF再生膠膜進一步去除染料色度，使其達循環再利用之目的。 研究結果顯示，國內目前市場上的再生膠組成以天然橡膠(NR)及丁基橡膠(IIR)為主，且以組成份中含碳量少、經脫硫處理的再生膠較適合以熱壓法或相轉換法製成薄膜，並應用於氣體分離或含染料的廢水處理。計畫第二年所製備之超濾中空纖維膜，其經由移除膠羽懸浮微粒可使甲基藍染料去除率達86.35%，而奈濾中空纖維膜對純甲基藍染料之阻絕率為78%，且經四次重複循環過濾甲基藍染料的結果顯示，奈濾中空纖維薄膜經反洗後仍能維持滲透通量為13.74 LMH，阻絕率可達93.11%。 | ||
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| 中文關鍵字 | 廢輪胎、再生膠、浸塗法、中空纖維膜、染料去除 | ||
基本資訊
| 專案計畫編號 | EPA-107-XA06 | 經費年度 | 107 | 計畫經費 | 1500 千元 |
|---|---|---|---|---|---|
| 專案開始日期 | 2018/01/01 | 專案結束日期 | 2018/11/30 | 專案主持人 | 曾惠馨教授 |
| 主辦單位 | 回收基管會 | 承辦人 | 黃建華 | 執行單位 | 中山醫學大學 職業安全衛生學系 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | EPA-107-XA06中英文詳細摘要.pdf | 0MB | EPA-107-XA06中英文詳細摘要 |
Novel recovery techniques for recycling waste tire tubber into separation membranes and feasible applications test
| 英文摘要 | Global demand for membranes is predicted to increase 8.6% per year and the market output can up to $ 26.4 billion in 2019. The reason for rapid growth is the department of government around the world establish much higher standard of purity level for water and wastewater streams. In addition, the growth includes some other reasons like the rising output from main industries such as food, beverages and pharmaceuticals and the greater demand for membranes, which will improve the requirement of high-quality technique of membrane separation. Waste tires are mainly composed of natural rubber (NR), synthetic rubber, carbon black, steel wire and fiber. The valuable resource, rubber, is one of the main raw materials that can be used for membrane preparation. The rubber in the waste tire can be restored to a one-dimensional structure through desulfurization treatment. Therefore, in this project, a novel synthesis technology was developed for recycling waste tire rybber into separation membranes, in order to enhance the value of reclaimed tire rubber as raw material and diverse pathways. In the first year of the project, a dense separation membrane was prepared by hot pressing process and applied to gas separation. The results show that the selectivity of the reclaimed membrane for CO2/N2 separation is up to 12.8 and the CO2 permeability is 161 Barrer. In the second year of the project, ultrafiltration (UF) membranes and nanofiltration (NF) membranes was developed and applied to dye wastewater treatment in dyeing and finishing plants to expand multi-application process. Therefore, two-stage membrane filtration systems for dye removal was developed in the second year project. In the first stage, the MF / UF membrane is used to filter the floc to reach the effluent Standards. In the second stage, the NF membrane is used to further remove the chromaticity of dye to achieve the water recycling purpose. The results indicated that the composition of reclaimed tire rubber on the market in Taiwan is mainly composed of NR and butyl rubber (IIR), which is the main material for synthesis of membranes. The reclaimed rubber with low carbon black content and high degree of desulfurization is more suitable for synthesis of gas separation membrane or UF/NF membrane for dye wastewater treatment. The UF membrane illustrated 86.35% for floc removal and dye rejection. While the RTR-derived NF membranes prepared with 9 wt.% and 3 coating cycles exhibited the best performance of the membranes, with the water flux and methyl blue rejection up to 13.74 LMH and 93.11 % at 0.98 bar, respectively. | ||
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| 英文關鍵字 | Waste tire, Reclaimed rubber, Dip coating, Hollow fiber membrane, Dye removal | ||