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Ceramic Filters and their Application for Cadmium Removal from Pulp Industry Effluent

机译：陶瓷过滤器及其在制浆工业废水中去除镉的应用

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The purpose of this paper was to investigate the performance of ceramic filters made from a mixture of natural clay, rice bran, and iron powder in removing cadmium from pulp industry effluent. Some parameters were examined such as acidity, total dissolved solid (TDS), total suspended solid (TSS), electrical conductivity (EC), and cadmium concentration. Results showed that the composition percentage of the ceramic filter, which in this case amounted to 87.5% natural clay, 10% rice bran, and 2.5% iron powder, may decrease cadmium concentration in pulp industry effluent by up to 99.0%. Furthermore,  the permeate flux decreased after 30 minutes of filtration time, and subsequently became constant at one hour of contact time. In addition, Scanning Electron Microscope (SEM) micrographs of the ceramic filter surfaces indicate that ceramic filters have a random pore structure and can be categorized as microfiltration filters.
机译：本文的目的是研究由天然粘土，米糠和铁粉的混合物制成的陶瓷过滤器在纸浆工业废水中去除镉的性能。检查了一些参数，例如酸度，总溶解固体（TDS），总悬浮固体（TSS），电导率（EC）和镉浓度。结果表明，陶瓷过滤器的成分百分比（在本例中为87.5％的天然粘土，10％的米糠和2.5％的铁粉）可使制浆工业废水中的镉浓度降低多达99.0％。此外，在经过30分钟的过滤时间后，渗透通量下降，随后在接触时间一小时后保持恒定。此外，陶瓷过滤器表面的扫描电子显微镜（SEM）显微照片表明，陶瓷过滤器具有随机的孔结构，可以归类为微过滤器。

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