摘要
本文简要介绍了“七五”期间列入国家科技重点计划的小草浆厂的废液治理实用技术:①简易碱回收,②碱法废液酸析木素并加以综合利用,③石灰法草浆酸液的厌氧消化,④电渗析法回收碱与减法草浆酸析木素后废液的厌氧消化。建议“八五”期间继续开展这方面的生产规模研究,并提出2～3种控制污染的成套技术。
Practical techniques of treating waste pulping liquid from small scale straw pulp mills, which have been conducted as the national major scientific and technical plans during the Seventh-Five-Year-Plan (1986-1990) have been briefly introduced. These practical techniques include; (1) simple recovering of alkali; (2) acidification of alkaline pulping waste liquid to get lighin and utilize it cmprehensively; (3) anaerobic digestion of lime straw pulp waste liquid; (4) recovery of alkali by electrodialysis process and (5) anaeribic digetion of the alkaline pulping waste liquid after lignin separated by acidification. It is suggested that the research on these practical techniques in produ'ctio scale should be continued and that two or three complete sets of practical technique of preventing and treating contamination for thousands of small-scale straw pulp mills should be developed.
出处
《农村生态环境》
CSCD
1992年第1期40-41,共2页
Rural Eco-Environment
