計畫系統編號PB10708-0073
研究性質應用研究
計畫編號MOST107-2621-M008-003
研究方式學術補助
主管機關科技部
研究期間10708 ~ 10807
執行機構國立中央大學環境工程研究所
年 度107年
研究經費1112千元
研究領域土木水利工程;
研究人員江康鈺林居慶
中文關鍵字有機污泥;氣化;高壓蒸氣技術;輕質化材料
英文關鍵字organic sludge; gasification; autoclaving; lightweight material.
中文摘要有鑑於建立整合型有機污泥資源/能源再利用研究之重要性,本研究主要包括(1)建立多元化有機污泥共同氣化處理之應用與評估,評估共同氣化轉換能源及提升產能效率之應用性;(2)開發污泥殘餘物再利用為新型綠色材料之新穎技術,及其新型材料之功能特性評估;(3)建立新穎技術與新型材料之環境安全與減碳效益(碳足跡)之應用評估等重要內容。其中多元化有機污泥共同氣化處理之應用與評估,主要針對現階段產生數量較為龐大之下水污泥、漿紙污泥、染整污泥及工業區廢水污泥等為研究對象,探討前述有機污泥共同氣化轉換能源之可行性,並期進一步建立提升產能效率之方法、操作參數與質能平衡分析等重要資訊。此外,本研究嘗試規劃未來可行之整合型有機污泥能源轉換之應用技術,其中考量規劃重點除共同氣化轉換能源效益外,亦包括能源轉後殘餘物(residue)製備為新型抗菌輕質化材料、能源轉換過程二氧化碳減量效益,以及應用過程之環境安全與生態毒性等評估項目。
英文摘要Recognizing the importance of integrated organic sludge converted to resources and energy, the objectives of this study were to: (1) establish feasibility assessment of co-gasified of multiple organic sludge and enhancement of energy yield; (2) develop the innovative lightweight materials manufactured from residues and assessment of the environmental safety and carbon emission reduction. In this project, we focus on the sludges produced from municipal or other wastewater treatment plant of paper-mill, dyeing and finishing and industrial park which are generated a lot of amounts every year in Taiwan. This project investigates the information of enhanced energy conversion efficiency, optimum operation parameters, and mass and energy balance in co-gasification of various organic sludge. Meanwhile, residues produced from organic sludge gasification were also considered as raw materials for manufacturing the innovative anti-fungal lightweight materials. The assessment of carbon dioxide reduction, environmental safety and ecological toxicity in anti-fungal lightweight materials manufacturing were also discussed in this project.
報告系統編號RW11009-0469
計畫中文名稱有機污泥轉換能源及其衍生殘餘物製備新型抗菌輕質化材料之應用評估
計畫英文名稱Organic Sludge-To-Energy and Derived Residues Converted to Innovative Anti-Fugal Lightweight Building Materials
主管機關科技部
計畫編號MOST107-2621-M008-003
執行機構國立中央大學環境工程研究所
研究期間10708 ~ 10807
報告頁數頁
使用語言中文
研究人員江康鈺 CHIANG KUNG-YUH
中文關鍵字高壓蒸氣技術;漿紙污泥;淨水污泥;抗菌輕質化材料;二氧化鈦
英文關鍵字Autoclaving; paper mill sludge; water purification sludge; antifungal lightweight materials; titanium dioxide (TiO2)
中文摘要本研究應用高壓蒸氣技術,探討淨水污泥與漿紙污泥灰共同製備為抗菌輕質化材料之可行性,其中試驗條件分別包括控制蒸氣壓力0.9MPa、反應時間8小時,控制鈣矽比(0.33~1.51)及調濕養護(室溫25℃及濕度70%)14天等條件,探討輕質化材料之機械特性。此外,為進一步探討輕質化材料摻混或表面塗佈二氧化鈦對抗菌特性之影響,本研究嘗試以嗜松青黴菌(Penicillium funiculosum)作為污染菌種,評估材料在模擬日夜光暗循環(日夜各12小時)及濕度條件(白天:65%及夜晚:75%)培養28天,材料表面之青黴菌覆蓋面積多寡,以作為抗菌效果之評估量化指標。
輕質化材料試驗結果顯示,在控制鈣矽比1.51及調濕養護之條件下,材料特性除符合輕質化材料之體密度(1.00g/cm3)及視孔隙率為(60.44%)之要求外,具有最佳之抗壓強度,材料之抗壓強度可達41kg/cm2以上,符合相關高壓蒸氣養護輕質氣泡混凝土之產品規範。製備材料之主要晶相為鈣矽水合物(C-S-H)以及碳酸鈣(Calcite)。抗菌試驗結果顯示,經過28天之試驗後,相較於未塗佈與摻混之試體,不論二氧化鈦之噴灑量之多寡,皆顯示出光催化之抗菌效果。輕質化材料表面之Penicillium funiculosum覆蓋率,以未塗佈試體之20.96%與內摻混之21.82%最高,而塗佈二氧化鈦0.1%試體,具有最佳的抗菌效果,青黴菌覆蓋面積僅約3.34%。本研究以漿紙污泥煅燒灰與淨水污泥製備輕質化材料,於表面塗佈二氧化鈦後,可透過光催化特性抑制青黴菌(Penicillium funiculosum)生長,且效果較未塗佈與摻混二氧化鈦試體佳。整體而言,應用高壓蒸氣技術製備之抗菌輕質化材料,極具後續應用發展潛力。
英文摘要This study investigates the characterization of antibacterial lightweight material manufactured by water purification sludge and paper mill calcined ash by autoclaving technique with controlling conditions under steam pressure 0.9 MPa, reaction time 8 hr, Ca/Si ratio ranged from 0.33 to 1.51, humidity control and curing 14 days (room temperature: 25℃and humidity: 70%). This research also investigates the antibacterial materials properties evaluated by the Penicillium funiculosum with controlled day-night cycle (12 hr each), humidity control (day:65% and night:75%), and culturing 28 days. The coverage of Penicillium funiculosum on the surface of the lightweight material is widely used as a quantitative indicator for evaluating the performance of the antibacterial materials properties.
In the case of Ca/Si ratio 1.51 and curing by humidity control, the experimental results indicated that the lightweight material has not only met the criteria of relevant autoclaving lightweight material with bulk density (1.00g/cm3) and apparent porosity (60.44%), but also has the good performance of compressive strength (higher than 41kg/cm2).The identified mainly crystal phases of the lightweight material are calcium silicon hydrate (C-S-H) and calcium carbonate (Calcite). According to the analysis results of 28 days antibacterial performance test, compared with the uncoated and titanium dioxide (TiO2) blended samples, the samples surface coating TiO2 has a good photocatalytic and antibacterial characteristics. In the case of uncoated and TiO2 blended samples, the coverage of Penicillium funiculosum on the surface of lightweight are 20.96% and 21.82%, respectively. The lightweight materials coating 0.1% TiO2 could perform the good antibacterial characteristics corresponding with lowest coverage of Penicillium funiculosum (approximately 3.34%). In this study, the prepared antibacterial lightweight materials could provide the good photocatalytic characteristics to inhibit the growth of Penicillium funiculosum. In summary, the prepared antibacterial lightweight materials have a good potential for applying the building and construction work in the future.