Nakanishi Akio, Tamai Motoharu, Kawasaki Naohito, Nakamura Takeo, Tanada Seiki
School of Science and Engineering, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
J Colloid Interface Sci. 2002 Aug 15;252(2):393-6. doi: 10.1006/jcis.2002.8387.
Many organic by-products have been discharged by humans, and the development of technology for recycling organic by-products has attracted much interest. In this paper, the techniques for producing carbonaceous adsorbents from an organic by-product and an application to remove endocrine disruptors are described. Wood chips as an organic by-product were carbonized at 873 to 1073 K. The iodine adsorption capacity of the obtained carbonaceous materials increased with increasing carbonization temperature. The amount of bisphenol A adsorbed on the carbonized materials produced from Sugi and Hinoki at a 1073 K carbonization temperature was higher than that of activated carbon. The Freundlich constant, 1/N, of the carbonaceous materials produced from Sugi chips, Sugi sawdust, and Hinoki sawdust was similar to that of the activated carbon. This result indicated that the affinity between bisphenol A and the carbonaceous materials or the activated carbon was similar. Their Freundlich constant, K, was greater than that of the activated carbon. Hence, bisphenol A could be efficiently removed by the carbonaceous materials.
人类排放了许多有机副产品，有机副产品回收技术的发展引起了广泛关注。本文描述了由有机副产品制备碳质吸附剂的技术及其在去除内分泌干扰物方面的应用。作为有机副产品的木屑在873至1073K下碳化。所得碳质材料的碘吸附容量随碳化温度的升高而增加。在1073K碳化温度下由杉木和扁柏生产的碳化材料上吸附的双酚A量高于活性炭。由杉木片、杉木锯末和扁柏锯末生产的碳质材料的弗伦德利希常数1/N与活性炭相似。这一结果表明双酚A与碳质材料或活性炭之间的亲和力相似。它们的弗伦德利希常数K大于活性炭。因此，碳质材料可以有效地去除双酚A。
