| 知識類型 | 期刊 |
| 標題 | Sorption of Nitro Explosives to Polymer/Biomass‐Derived Biochar |
| 作者 | Seok‐Young Oh, Yong‐Deuk Seo, Tae‐Yong Jeong, Sang‐Don Kim |
| 名稱(期刊/節目) | Journal of Environmental Quality |
| 期刊期數/節目集數 | Volume 47, Issue 2, Pages 353-360 |
| 出版單位 | Wiley |
| 出版年月日 | 2018/3/1 |
| 原文摘要 | Factors affecting the sorptive removal of nitro explosives (2,4,6‐trinitrotoluene [TNT] and hexahydro‐1,3,5‐trinitro‐1,3,5‐triazine [RDX]) to polymer/biomass‐derived biochar were investigated through batch experiments. Compared with that of rice (Oryza sativa L.) straw (RS)‐derived biochar, the sorption of TNT and RDX to polymer/RS‐derived biochar was greatly enhanced by >2.5 and 4 times, respectively. The type and amount of polymer did not significantly affect the sorption of nitro explosives to polymer/RS‐derived biochar. Pyrolysis temperature did not affect the sorption capacity. Surface treatment with acid or an oxidant did not significantly change the sorption capacity, suggesting that polymer residues may be strongly responsible for the enhancement. Possible polymer residues were identified via gas chromatography mass spectrometry analysis. The toxicity characteristic leaching procedure and Microtox bioassay analyses indicated that polymer/RS‐derived biochar did not show possible harmful effects. Our results suggest that polymer/RS‐derived biochar can be effectively used as a sorbent to remove nitro explosives both in the natural environment and engineered systems. |
| 原文摘要簡述 | 我們透過一組實驗，研究了將硝基炸藥(2,4,6-三硝基甲苯[TNT]和六氫-1,3,5-三硝基-1,3,5-三嗪[RDX])吸附去除至聚合物/生物質衍生的生物炭中的影響因素。與稻草(RS)衍生的生物炭相比，TNT和RDX對聚合物/ 稻草衍生的生物炭的吸附分別大大增加了2.5倍和4倍。聚合物的類型和數量無顯著影響硝基炸藥對聚合物/ 稻草衍生生物炭的吸附。熱解溫度不影響吸附能力。用酸或氧化劑進行表面處理不會顯著改變吸附能力，這表示聚合物殘基有極大的可能為增強作用的因素。通過氣相色譜質譜分析法鑑定可能的聚合物殘基。經毒性特徵淋溶出程序和Microtox生物測定分析指出，聚合物/ 稻草衍生的生物炭未顯示可能有害的影響。我們的結果表示，聚合物/ 稻草衍生的生物炭可以有效地作為吸附劑，以去除自然環境和工程系統中的硝基炸藥。 |
| 關鍵字 | sorptive, nitro explosives, biochar, gas chromatography mass spectrometry analysis, Microtox bioassay |
| 連結 | https://doi.org/10.2134/jeq2017.09.0357 |