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The Effect of Chemical and Biopulping Process on Bagasse Pulp

机译：化学和生物制浆工艺对蔗渣纸浆的影响

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摘要

The amount of sugarcane bagasse in Indonesia is abundant while the utilization is still limited. One of the alternatives for bagasse utilization is as pulp material. To minimize the waste from the pulping process, the effect of using a chemical process (with nitric acid) and a biopulping process (using Fusarium solani) were studied and measured by the percentage of α-cellulose content in bagasse pulp. In the chemical process, the nitric acid concentration and the reaction time were varied. The pulping process was conducted at constant temperature of 102℃ and the mixture was agitated at 900 rpm. The highest percentage of α-cellulose content in pulp was 79.28%, obtained at the concentration of 3.5% for a reaction time of 3.5 hours. At higher concentrations and longer cooking times, the α-cellulose decreased due to the cellulose degradation. In the biopulping process, the incubation temperature was kept at 30℃. The highest percentage of α-cellulose was 65.80% obtained at an incubation time of 25 days. When compared to nitric acid pulping, biopulping is less efficient. However it has one advantage that it only uses a small amount of chemicals and, therefore, creates less pollutants.
机译：印尼甘蔗渣的数量丰富，而利用率仍然有限。蔗渣利用的替代方法之一是作为纸浆材料。为了最大程度地减少制浆过程中的浪费，研究了化学工艺（使用硝酸）和生物制浆工艺（使用枯萎镰刀菌）的效果，并通过蔗渣纸浆中α-纤维素的含量来衡量。在化学过程中，硝酸浓度和反应时间是变化的。制浆过程在102℃的恒定温度下进行，混合物以900 rpm的速度搅拌。纸浆中α-纤维素含量的最高百分比为79.28％，是在3.5％的浓度下以3.5小时的反应时间获得的。在更高的浓度和更长的烹饪时间下，由于纤维素的降解，α-纤维素减少了。在生物制浆过程中，孵育温度保持在30℃。在25天的孵育时间中，α-纤维素的最高百分比为65.80％。与硝酸制浆相比，生物制浆效率较低。但是，它的一个优点是，它仅使用少量的化学物质，因此产生的污染物更少。

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