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ABR处理高浓度硫酸盐有机废水的性能 总被引:4,自引:0,他引:4
以人工配制的高浓度硫酸盐有机废水作为原水,研究了厌氧折流板反应器(ABR)处理高浓度硫酸盐有机废水的性能。结果表明,在温度为(33.2±0.1)℃、HRT为20~24h以及进水COD、硫酸盐浓度分别为5000和300~1500mg/L的条件下,ABR处理高浓度硫酸盐有机废水的效果较好,对COD的去除率可达90%以上,SO4^2-的还原率稳定在96%。COD/SO4^2-值是影响SRB与MPB竞争关系的重要指标,对COD去除率和SO4^2-还原率都有很大的影响。启动方式对厌氧反应器处理含硫酸盐废水的性能有很大的影响,低硫酸盐负荷启动方式会使MPB取得初始相对优势,SO4^2-还原对厌氧处理过程影响较小。 相似文献
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通过脾淋巴细胞转化实验、二硝基氟苯诱导的迟发性变态反应、抗体生成细胞检测、血清溶血素测定、碳廓清实验、腹腔巨噬细胞吞噬荧光微球实验、NK细胞活性以及IL-1、IL-6、IL-10、TNF-α测定,分别观察诺丽酒对小鼠细胞免疫功能、体液免疫功能和单核- 巨噬细胞功能的影响。结果表明,20 mL/kg·BW剂量诺丽酒能即可显著提高小鼠脾淋巴细胞转化、巨噬细胞廓清与吞噬活性及NK细胞活性,与酒基对照组相比,分别提高了42.14%、16.79%、66.23%、24.78%,并促进细胞因子IL-6、IL-10与TNF-α释放,表明诺丽酒具有增强机体免疫力的功效。 相似文献
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电站下游河冰演变过程涉及水库调度、热力、水力、风力、地形以及冰水物理性质等众多因素,且彼此相互联系、相互制约。为模拟电站下游河道冰清,本文通过分析电站下游河冰生消演变的物理过程,建立了适用于电站下游河道水温冰情预测的纵向一维水动力学、水温与冰情耦合的数学模型,采用丰满水库下游河道水温冰情原型观测成果对模型进行了参数率定与验证,结果显示该模型能较好地模拟出电站下游零温断面和封冻断面受流量、水温及气象影响下的变化过程,同时模拟出河道的封冻过程及冰厚的增长过程,并与实测成果符合较好。 相似文献
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结合转炉中控室电动升降防溅装置的实际工况,从结构的合理性、动作的可靠性、设备安装调试维护的简易性和经济性等几个方面出发,分别具体地讨论了该装置两种不同的设计方案和各自的优缺点。 相似文献
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Shape-selective catalysts for the disproportionation of toluene were prepared by the modification of the cylinder-shaped ZSM-5 zeolite extrudates with chemical liquid deposition with TEOS (tetraethyl orthosilicate).Various parameters for preparing catalysts were changed to investigate the suitable conditions. The resulting catalysts were tested in a pressured fixed bed reactor and characterized by SEM (scanning electron microscopy). The conversion of toluene and para-xylene selectivity were influenced remarkably by the n(SiO2)/n(Al2O3) ratio of ZSM-5 zeolite, the type and amount of deposition agent, acid and solvent used, and the time and cycle of deposition treatment. TEOS was proved to be a more efficient agent than the conventional polysiloxanes when the depositionamount was low. The catalyst prepared at the suitable conditions exhibited a high para-xylene selectivity of 91.1% with considerable high conversion of 25.6%. SEM analyses confirmed the formation of a layer of amorphous silica on the external surface of ZSM-5 zeolie crystals, which was responsible for the highly enhanced shape-selectivity. 相似文献
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