The current situation of treatment of alkalitreating wastewater and Cr pollution in leather-making industry were reviewed.
本文综述了制革工业中浸碱废液和铬污染的治理现状。
2
The density and the time of alkalitreating decrease the proportion of remnant pectin and the content of lignin, but the speed of the decreasing becomes slower gradually;
碱液浓度和时间的增加使试样的残胶率和木质素含量降低，但降低的速度逐渐变慢；
3
The insoluble tea-leaf dietary fiber is prepared from tea leaves serving as raw materials by drying, coarse grinding, acid treating, alkalitreating, degreasing, decoloring, drying and crushing.