论文部分内容阅读
我县造纸厂过去用烧碱制浆造纸,每生产一吨纸要排出十吨强碱废液,不仅危害农田,而且严重污染环境。现该厂开始采用“亚铵法”代替烧碱制浆造纸,不仅解决烧碱不足的困难,还能生产出大量的亚硫酸铵(简称黑液),变废为利,为农作物提供优质的肥料。为了摸清其增产作用、肥料性能和推广利用价值,去冬以来,先后在六个公社和县农科所,对小麦、油菜、蔬菜、棉花、水稻等六种作物,进行了黑液应用试验,共计面积三百余亩。现将小麦、油菜和蔬菜的试验结果及其对黑液前途的评价初报如下:
In the past, my county paper mill used caustic soda to make pulp and paper. Every ton of paper produced discharged ten tons of alkali waste, which not only endangered the farmland, but also seriously polluted the environment. Now the plant began to use “ammonium” instead of caustic soda papermaking, not only to solve the problem of inadequate caustic soda, but also produce a lot of ammonium sulfite (referred to as black liquor), turning waste into benefits for the crops to provide high-quality fertilizer. In order to find out its increasing production, fertilizer performance and the value of popularization and utilization, since the winter, six communes and county agricultural research institutes have carried out black liquor application tests on six kinds of crops such as wheat, rape, vegetables, cotton and rice , A total area of more than 300 acres. The test results of wheat, rape and vegetables and their evaluation of the future of black liquor are as follows: