循環農業：農業廢棄物高價值化【環境工程學系/林坤儀特聘教授】
| 論文篇名 | 英文：Intensified peroxydisulfate/microparticles-zero valent iron process through aeration for degradation of organic pollutants: Kinetic studies, mechanism and effect of anions 中文：通過曝氣強化過氧二硫酸鹽/微粒-零價鐵過程降解有機污染物：動力學研究，陰離子的機制和作用 |
| 期刊名稱 | JOURNAL OF WATER PROCESS ENGINEERING |
| 發表年份,卷數,起迄頁數 | 2020,36, 101321 |
| 作者 | Ghanbari, Farshid; Riahi, Mahtab; Kakavandi, Babak; Hong, Xiaoting; Lin, Kun-Yi Andrew(林坤儀)* |
| DOI | 10.1016/j.jwpe.2020.101321 |
| 中文摘要 | 水和廢水工程師已經考慮了有機染料對水的污染。文獻中已經提出了幾種方法，特別是高級氧化方法。基於過氧二硫酸鹽（PDS）的工藝是降解有機污染物的有力技術。零價鐵（mZVI）/曝氣也是生成Fenton試劑的一種簡單方法。在這項研究中，首次使用PDS / mZVI /曝氣降解酸性藍9（AB9）。全面研究了操作參數，各種陰離子，鐵的釋放和反應動力學。在PDS = 1.5 mM和mZVI = 0.5 g / L的條件下僅10分鐘後，觀察到AB9快速降解。擬一級動力學模型適用於AB9降解，速率常數為0.2039 min -1。與mZVI相比，零價鋁不能有效激活PDS。清除測試表明，硫酸根（SO 4-自由基點）是AB9降解的主要因素。碳酸鹽和亞硝酸鹽陰離子幾乎完全抑制了AB9的降解。在處理的陰離子的負面影響是基於該順序CO 3 2- > NO 2 - > I− >H2 PO 4 - >溴- >氯- > NO 3 - ≥SO 4 2-。監測由AB9降解產生的羧酸。結果表明，進一步的氧化導致生成羧酸的小分子。在120分鐘的反應過程中，約有60％的AB9有機碳礦化。溶液中釋放出7.0％的mZVI。FESEM，EDS和XRD分析表明mZVI被氧化為Fe 2 O 3。最後，PDS / mZVI /曝氣顯示了一種簡單有效的降解有機染料的方法。 |
| 英文摘要 | Water pollution by organic dyes has been considered by water and wastewater engineers. Several methods have been suggested in literature especially advanced oxidation processes. Peroxydisulfate (PDS)-based processes are a powerful technique for the degradation of organic pollutants. Micro-zero valent iron (mZVI)/aeration is also a simple method for the generation of Fenton reagent. In this study, PDS/mZVI/aeration was used for the first time to degrade Acid Blue 9 (AB9). Operating parameters, various anions, iron release and reaction kinetic were comprehensively investigated. A rapid degradation of AB9 was observed after only 10 min under conditions of PDS = 1.5 mM and mZVI = 0.5 g/L. Pseudo-first order kinetic model was fitted for AB9 degradation with the rate constant of 0.2039 min−1. In contrast with mZVI, zero valent aluminum was ineffective to activate PDS. Scavenging tests demonstrated that sulfate radical (SO4radical dot-) was dominated for the degradation of AB9. Carbonate and nitrite anions almost completely suppressed AB9 degradation. The negative effect of anions on the process was based on this order CO32− > NO2− > I− > H2PO4− > Br− > Cl− > NO3− ≥ SO42−. Carboxylic acids generated arise from AB9 degradation were monitored. The results showed that further oxidation led to the generation of the small molecules of carboxylic acids. Around 60% of organic carbon of AB9 was mineralized during 120 min reaction. 7.0% of mZVI was released in the solution. FESEM, EDS, and XRD analyses showed that mZVI was oxidized to Fe2O3. Finally, PDS/mZVI/aeration showed a simple and efficient process for degradation of organic dye. |
