采用复合生物酶处理的小麦秸秆生物机械制浆

Biomechanical pulping of wheat straw treated with complex biological enzymes

制浆造纸行业面临着制浆过程污染控制难、制浆原料供应少、制浆工艺能耗高等问题。通过实验研究了三种生物酶复合后进行制浆,采用生物制浆与机械制浆相结合,同时设计了两次酶制剂处理,对农业废弃物小麦秸秆进行利用。可以很好地应对制浆原材料短缺,木材原料砍伐受限制的问题。在制浆过程中没有添加化学试剂,无制浆黑液的产生,避免了后期污水处理的困难及排放后对环境的污染。对制浆成纸后的纸张性能进行测试,发现相比于单纯的机械制浆和一次酶处理,二次生物酶处理对纸张成纸强度有较大改善。相较于未经过处理的秸秆其中抗张强度提高近一倍,撕裂强度提高了36.5%,保水值提高78.8%。

Pulp and paper industry is faced with many problems,such as difficult pollution control,less raw material supply and high energy consumption.This paper conducts experiments to study the compounding of three biological enzymes for pulping,using a combination of biological pulping and mechanical pulping.At the same time,two enzyme preparation treatments are designed to utilize agricultural waste wheat straw and improve the pulping process after pulping into paper.The paper performance was tested and it was found that compared with simple mechanical pulping and primary enzyme treatment,the secondary biological enzyme treatment improved the paper-forming effect.Compared with untreated straw,the tensile strength is nearly doubled,the tear strength is increased by 36.5%,and the water retention value is increased by 78.8%.