The extractions of collagen from tannery wastes by acid, alkali, enzyme, oxidation etc were introduced. The application of collagen fiber in papermaking and its developing tendency were also analyzed.
介绍了采用碱处理法、酸处理法、氧化法、酶处理法等从皮革废弃物中提取胶原蛋白的几种方法，还介绍了这些胶原蛋白在造纸中的应用现状及发展趋势。
The"three wastes"and some chlorides from chlor-alkali industry have destructive impact on environment where we are living.
氯碱工业产生的三废及部分氯产品，对人类赖以生存的环境带来一定冲击和破坏作用。
The activation effect of some kinds of alkali activators for three solid wastes-water-quenching blast furnance slag, steel slag and fly-ash has been investigated in this paper.
研究了几种碱性激发剂对水淬高炉矿渣、钢渣和粉煤灰三种固体废弃物的激发效果。
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