二氧化硅改性细菌纳米纤维素去除石化废水化学需氧量达98.2%：《科学报告》最优条件为pH 6.5、每升250毫克与30摄氏度，11月13日刊出
《科学报告》于2026年11月13日刊出二氧化硅改性细菌纳米纤维素处理石化废水研究。论文由Zamani、Rastgar与Hedayati发表，数字对象标识符为10.1038/s41598-026-79855-7，2026年6月22日收稿、11月3日接受。
研究背景是石化废水含有高浓度的难降解有机污染物，化学需氧量偏高，带来严重的环境关切。研究团队以溶胶凝胶法合成了二氧化硅改性细菌纳米纤维素纳米复合材料，并评估其对石化废水化学需氧量的去除表现。
在优化条件下，即pH值为6.5、吸附剂投加量为每升250毫克、温度为30摄氏度时，该纳米复合材料取得98.2%的化学需氧量去除率。
论文在报告这一结果的同时给出限定：该结果与实验趋势有合理对应，但由于存在显著的失拟，定量模型预测应谨慎解读。
（来源：《科学报告》）
Silica-Modified Bacterial Nanocellulose Removes 98.2 Percent of Chemical Oxygen Demand From Petrochemical Wastewater: The Optimum Was pH 6.5, 250 Milligrams Per Litre and 30 Degrees Celsius in Scientific Reports, Published November 13
Scientific Reports published a study of silica-modified bacterial nanocellulose for treating petrochemical wastewater on November 13, 2026. The paper, by Zamani, Rastgar and Hedayati, carries digital object identifier 10.1038/s41598-026-79855-7, was received on June 22, 2026 and accepted on November 3, 2026. The study notes that petrochemical wastewater contains high concentrations of refractory organic pollutants, resulting in elevated chemical oxygen demand and serious environmental concerns. The team synthesized a silica-modified bacterial nanocellulose nanocomposite by the sol-gel method and evaluated it for chemical oxygen demand removal from petrochemical wastewater. Under the optimized conditions of pH 6.5, an adsorbent dosage of 250 milligrams per litre and a temperature of 30 degrees Celsius, the nanocomposite achieved a chemical oxygen demand removal efficiency of 98.2 percent. The paper qualifies the result in the same passage: the performance showed reasonable correspondence with experimental trends, although quantitative model predictions should be interpreted cautiously due to the significant lack of fit.
(Source: Scientific)
来源：《科学报告》
发布：GSM·美国（发布链接）
图片来源：图：污水处理厂的航拍全景。Sdkb，CC BY-SA 4.0，经 Wikimedia Commons。 / Photo: Sdkb, CC BY-SA 4.0, via Wikimedia Commons.
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