用酶混合物预处理木质纤维素材料以提高沼气产量

IF 0.9 Q4 CHEMISTRY, MULTIDISCIPLINARY Acta Chimica Slovaca Pub Date : 2022-01-01 DOI:10.2478/acs-2022-0005
Barbora Jankovičová, M. Hutňan, Marianna Czӧlderová, J. Barbušová
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引用次数: 0

摘要

摘要本研究的目的是评价一种酶混合物对增加油菜籽秸秆、玉米秸秆和小麦秸秆等木质纤维素材料的沼气产量的影响。为了有效地应用酶混合物,优化了其使用条件,温度为50°C, pH为7,酶剂量为0.25% w/v。沼气电位测试证实了酶混合物对已经经过热处理和碱预处理的木质纤维素材料厌氧消化的积极影响,因为在所有监测的底物中添加酶混合物后,观察到明显更高的沼气产量。在沼气池电位试验中,在沼气池中使用最多的基质——玉米青贮中添加酶混合料对沼气池的产气量也有积极的影响。这一事实在反应器的长期运行中没有得到证实,因为在整个监测期间,添加酶混合物和不添加酶混合物的玉米青贮厌氧消化反应器的总累积沼气产量没有显著差异。
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Pre-treatment of lignocellulosic materials by enzymatic mixture to enhance biogas production
Abstract The aim of this study was to evaluate the effect of an enzymatic mixture on the increase of biogas production from lignocellulosic materials as rapeseed straw, maize waste, and wheat straw. For efficient application of the enzymatic mixture, conditions of its use were optimized regarding 50 °C, pH 7 and an enzyme dose of 0.25 % w/v. Biogas potential test confirmed positive effect of the enzymatic mixture on anaerobic digestion of already thermally and alkali pre-treated lignocellulosic materials, as significantly higher biogas production was observed after the enzymatic mixture addition for all monitored substrates. Addition of the enzymatic mixture to the most used substrate at biogas plants — maize silage, had also positive effect on biogas production during the biogas potential test. This fact was not proven during long-term operations of the reactors as the values of total cumulative biogas productions for the whole monitored period from reactors for anaerobic digestion of maize silage with and without addition of enzymatic mixture did not differ significantly.
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来源期刊
Acta Chimica Slovaca
Acta Chimica Slovaca CHEMISTRY, MULTIDISCIPLINARY-
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12.50%
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11
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