公开(公告)号：KR1020080071762A

公开(公告)日：2008-08-05

申请号：KR1020070010043

申请日：2007-01-31

Applicant: 전북대학교산학협력단

Inventor： 윤영상 ,  한민희 ,  최순범 ,  원성욱 ,  조철웅 ,  비제이 ,  마호주엔 ,  팜띠풍띠

IPC: B01D39/00

Abstract: An effective method is provided to improve adsorption performance of the dyes through the chemical modification of functional groups on a surface of the biomass according to the adsorption mechanism of the biomass and dyes when using a corynebacterium glutamicum biomass as biosorbents. In a preparation method of a biosorbent that is applied to dyestuff wastewater and removes the dyes by adsorbing dyes causing color, a preparation method of a biosorbent having enhanced adsorption performance by chemical modification of functional groups on a surface of a corynebacterium glutamicum biomass comprises the steps of: treating the corynebacterium glutamicum biomass with an acid to hydrogenate the corynebacterium glutamicum biomass, washing the hydrogenated corynebacterium glutamicum biomass with distilled water, and drying the washed corynebacterium glutamicum biomass; and chemically modifying the hydrogenated biomass through an ester reaction to remove a carboxyl group, washing the chemically modified hydrogenated biomass with distilled water, and drying the washed biomass. The step of removing the carboxyl group is performed by dispersing the hydrogenated biomass into a methanol solution, adding nitric acid as an acid catalyst into the dispersion, and agitating the mixed solution to perform an ester reaction.

Abstract translation: 提供了一种有效的方法，通过根据生物质和染料的吸附机理，在使用谷氨酸棒状杆菌生物质作为生物吸附剂时，通过化学修饰生物质表面官能团来改善染料的吸附性能。 在用于染料废水并通过吸附引起颜色的染料去除染料的生物吸附剂的制备方法中，通过化学修饰谷氨酸棒状杆菌生物质表面上的官能团具有增强的吸附性能的生物吸附剂的制备方法包括以下步骤 用酸处理谷氨酸棒状杆菌生物质，氢化谷氨酸棒杆菌生物质，用蒸馏水洗涤氢化的谷氨酸棒状杆菌生物质，并干燥洗涤的谷氨酸棒杆菌生物质; 并通过酯反应化学改性氢化生物质以除去羧基，用蒸馏水洗涤化学改性的氢化生物质，并干燥洗过的生物质。 通过将氢化生物质分散到甲醇溶液中，将硝酸作为酸催化剂加入到分散体中，并搅拌混合溶液进行酯反应来进行羧基的除去步骤。