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采用煤渣静态吸附水中氟和砷.考察煤渣投加量、震荡时间、进水浓度和pH值对煤渣吸附性能的影响.实验结果表明,每100 mL污水较为合适的煤渣用量为6 g;煤渣对氟和砷的最佳吸附时间为3 h;对高氟水的吸附效果较好,对低氟水的去除效果相对较差;对高浓度及低浓度的砷均具有较好的吸附效果,去除率均达到95%以上;pH值对氟和砷的吸附影响不大. 相似文献
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在北京有一痴迷的收藏者,专门收集孔子题材的藏品,寓"煤渣虽然能源耗尽,但还可以用来铺路"之意,自称"煤渣老孔"。此人便是孔令金。 相似文献
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We investigated the photocatalytic degradation of dye wastewater by using titanium dioxide (TiO2) coated on a coal cinder. The coal cinder was used as the carrier, with a thin film of TiO2 coated on it by using the sol-gel method. Using the Congo red as the model pollutant for dye wastewater, we studied the decolorization efficiency, and effects of TiO2 film thickness and roasting temperature on the efficiency. We also evaluated the recycling and regeneration of the immobilized TiO2 (TiO2/cinder). Results show that the decolorization rate of Congo red solution was more than 98% after 2.h treatment when we used TiO2/cinder calcined at 500 ℃ for 2 h and coated four times as the photocatalyst. At the same time, the TiO2/cinder remained high catalytic activity after being reused and regenerated for many times. 相似文献
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《实验室研究与探索》2017,(10):24-27
针对传统煤渣含碳量检测技术过程繁琐、时间长、不能在线检测等缺陷,介绍一种基于机器视觉的煤渣含碳量快速自动检测技术。该技术通过采集煤渣采集装置中的图像数据,经过CCD图像灰度处理、边缘识别及提取、灰度特征值提取、灰度特征值标定等,快速识别出煤渣含碳量。实验结果表明,煤渣含碳量在2%~16%时,该技术的煤渣含碳量分辨率在1%以内。工业锅炉的煤渣含碳量通常在8%~16%,煤渣热损失在4%~8%,因此该技术对于工业锅炉的送风量调控具有工程指导意义。 相似文献