废纸的水解

Hydrolysis of Waste Paper

水解植物纤维素并发酵制造其它产物的方法有几种。本文只对酸水解法和酶水解法的经济优点进行比较。所使用的原料是生活垃圾中的废纸。现已得出结论:酶水解法的费用仍然大大高于酸水解法,其重要原因是酶的价格较高。

Waste paper seperated from domestic waste contains different materials such as plastics,cloth, dissoluble organics and inorganic fragmentaries.This waste paper is the lowest grade of paper.If this paper can be decomposed by hydr- olysis,the possibility will be good for other fibre materials to be processed by hydrolysis. The article compares the econo- mic advantage between acid hydrol- ysis and enzyme hydrolysis.The con clusion is that the cost of enzyme hydrolysis is higher than acid hydr- olysis mainly because the price of enzyme is higher.The cost of produ- cing one ton of glucose by acid hydrolysis is eguivalent to the pres- ent market price. Acid hydrolysis can be combined with fermentation process to prod- uce chemicals such as ethanol,buta- nol and acetone from waste paper in domestic waste and other fibre materials.