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鼓泡技术应用于玻璃生产中,能够提高玻璃产品质量,增加产量,降低成本,延长窑炉使用寿命,降低SO2、NO X的排放量等。介绍了水冷式鼓泡器和风冷式(干式)鼓泡器的结构特点、安装特性、适用范围以及对于不同组成玻璃的应用效果,鼓泡技术投资少,见效快,效益高。 相似文献
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分批操作条件下超滤过程膜面积的确定与放大 总被引:1,自引:1,他引:0
推导了在分批操作条件下确定膜面积的计算公式,利用小波实验结果,即可确定放大到中试以及生产规模所需膜面积,以红霉纱发酵滤液为例,利用外压式中空纤维膜和内压式中空纤维膜进行超滤,在10~20L规模取得实验数据,拟合出通量预测模型参数,然后计算出日处理80吨发酵滤液时在不同情况下所需的膜面积,本文还讨论了影响膜面积的因素,并在100L规模实验验证了计算是正确的。 相似文献
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对开封东大化工集团离子膜鼓泡进行分析,指出进槽阳极液浓度过低、电解槽长时间不排液等是造成离子膜鼓泡的主要原因。针对上述问题,采取一系列有效措施,消除鼓泡因素,保证生产顺利进行。 相似文献
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超滤法浓缩纯化透明质酸钠 总被引:4,自引:0,他引:4
本文报道了采用丙烯腈三元共聚物中空纤维超滤膜浓缩纯化透明质酸钠。结果表明,经超滤浓缩纯化制得的透明质酸钠产品外观及理化指标均好,回收率高。丙烯腈三元共聚物中空纤维膜对透明质酸钠溶液有良好的抗污染性能,料液的透明速率稳定在30L/m^2.h左右,采用生理盐水正反冲洗结合方法可以使膜的性能基本恢复。 相似文献
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超滤法处理双黄连粉针药液 总被引:18,自引:1,他引:18
本文报道了采用PES-C中空纤维膜处理双黄连粉针药液。结果表明经超滤法处理后双黄连药液清澈透明,有效成份基本不变,粒度符合标准。超滤膜性能稳定,采用碱液清洗方法可以使膜的性能得到恢复。 相似文献
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超滤法处理湘江原水的试验研究 总被引:1,自引:0,他引:1
研究了直接用超滤法处理湘江源水制取自来水的可行性,结果表明:超滤出水细菌去除率接近100%,出水浊度1.0 NTU以下,对硝酸盐氮、CODMn有一定的去除率,但对金属离子(Fe、Mn)几乎无去除作用.混凝后可提高CODMn的去除效果. 相似文献
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《分离科学与技术》2012,47(18):2814-2823
A bench-scale study was performed to optimize backwash frequency and air sparging conditions during ultrafiltration (UF) for drinking water treatment in order to minimize hydraulically irreversible fouling as well as operating and maintenance costs. Surface shear stress representing different air sparging conditions (continuous coarse bubble, intermittent coarse bubble, and large pulse bubble) was applied in combination with various backwash frequencies (0.5, 2, and 6 hours) during UF of two natural surface waters. Results indicated that air sparging during permeation with intermittent coarse or large pulse bubbles significantly reduced the rate of irreversible fouling. This allowed for longer permeation times (up to 6 hours) between backwashing, when compared to a baseline condition which assumed a 0.5 h-backwash frequency with no air sparging during permeation. As a result, operation and maintenance cost savings estimated at > $350,000/year for a 29 MLD membrane train could be realized. This study demonstrates that optimized air sparging could serve as a cost-effective UF fouling control strategy for drinking water production. 相似文献
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应用于高品质木糖醇生产的超滤技术 总被引:2,自引:0,他引:2
采用不同分子量的超滤膜对木糖醇液进行净化,通过对纯度、抽滤时间等指标进行对比,及对不同滤膜的渗透通量和清洗情况进行实验,从而确定分子量为1·5万的超滤膜较适于木糖醇的生产。这样从根本上消除了成品醇中的大分子杂质、粉尘类杂质,提高了产品的纯度,降低了木糖醇生产中的提纯成本。 相似文献
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The usage of ionic polysulfone (PSF) hollow fiber for the ultrafiltration of protein was investigated. The surface of polysulfone hollow fiber was sulfonated through the Blanc chloromethylation reaction to become anionic. Characterization of the modified hollow fiber was performed including ion exchange titration, pure water permeation, and molecular sieving measurement. The performance of ultrafiltration of protein was evaluated using myoglobin at various pH values. The results show that the water contact angles and hydraulic resistance are markedly decreased, indicating that the surface-modified PSF hollow fibers are more hydrophilic. In addition, the retention of myoglobin depends on the pH of the solution. At a pH higher than the isoelectric point of myoglobin, both hollow fiber and the protein have the same charge sign, and both the flux of the solution and the retention are the highest. The sulfonated PSF hollow fiber may be used as a biomaterial for protein separation and purification. 相似文献
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简要介绍了超滤分离的基本原理、特点及其在食品生产和环境保护中的应用。超滤是一种流体切向流动和压力驱动的过滤过程并按分子量大小来分离颗粒。超滤膜是一种孔径范围为0.001~0.02微米的一种微孔过滤膜。超滤膜采用压力差为推动力的膜过滤方法为超滤膜过滤。最后对超滤膜污染的预防和避免提出了解决的意见。 相似文献
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研究采用平板式超滤膜技术直接处理头孢菌素C的发酵液。实验结果表明,所用的超滤系统能够一步截留未经处理的头孢菌素C发酵液中的菌体蛋白、固体颗粒等杂质,去除蛋白能力是原工艺的10倍,过滤收率提高了6%。膜通量的衰减幅度较小,产品质量好。 相似文献
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