Many nuclear facilities will have to be decommissioned or dismantled in the near future. Great amounts of solid radioactive waste and waste solution are generated from there mediation of uranium-contaminated soil. If the uranium selectively removed in the waste solution by a resin and desorbed from the resin by a proper reagent, the solution would be reused without an increase of pH to precipitate uranium, and a very small amount of the 2nd waste would be generated. The sorption of uranium from the washing solutions by an ampholyte resin (S-950, Purolite Company) was tested. As a result, 97% of uranium was sorbed on S-950, and 90% of uranium was desorbed from the resin by a batch-type washing with 0.5 M Na2CO3 solution at 60℃.

Chemical composition and enzymatic saccharification characteristics of hemp woody core were investigated by their chemical composition analysis and enzymatic saccharification with commercially available cellulases (Celluclast 1.5L and Novozym 342). Hemp woody core have higher xylan and lower lignin contents than its bast fiber. Based on hemicelluloses and lignin composition, hemp woody core is similar with hardwood biomass. However, cellulose was more easily converted to glucose than xylan to xylose and this trend was confirmed both hemp woody core and yellow poplar. Hemp woody core biomass shows higher saccharification than yellow poplar (hardwood biomass) based on cellulose and xylan hydrolysis. With easier enzymatic saccharification in cellulose and xylan, and similar chemical composition, hemp woody core have better biorefinery feedstock characteristics than hardwood biomass.