DEVELOPMENT OF SOIL CONDITIONING AGENT FROM LIGNIN
As it is well known, technological development for the utilization of lignin is a key for the total utilization of lignocellulosic materials, although it is quite limited at this moment except for the utilization as an energy source. In this paper, development of a soil conditioning agent from kraft lignin and bleaching effluent lignin will be discussed. It is important to note that a modified kraft lignin developed in this study has a characteristic nature to remove the toxic effect of Aluminum ion in the soil and may be used for the remediation of acidic soil. Lignin present in the alkaline-oxygen delignification stage waste liquor also shows a positive effect, although the effect is different dependent on their molecular weight and presence of a particular low molecular weight acid, that is oxalic acid. Function mechanism of a modified lignin to remove Aluminum toxicity will be also discussed based on 27Al-NMR spectroscopy.
kraft lignin bleaching effluent lignin tozic effect acidic soil
Gyosuke Meshitsuka Wang Dongxiang Kyoko S Katsumata
Laboratory of Wood Chemistry, Department of Biomaterial Sciences, Graduate School of Agricultural an Laboratory of Wood Chemistry, Department of Biomaterial Sciences, Graduate School of Agricultural an Laboratory of Wood Chemistry, Department of Biomaterial Sciences, Graduate School of Agricultural an
国际会议
广州
英文
15-17
2006-11-08（万方平台首次上网日期，不代表论文的发表时间）