Pretreatment of garden biomass using Fenton's reagent: influence of Fe(2+) and H2O2 concentrations on lignocellulose degradation.
Pretreatment of garden biomass using Fenton's reagent: influence of Fe(2+) and H2O2 concentrations on lignocellulose degradation.
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DOI：
10.1186/s40201-015-0167-1
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发表时间：
2015
影响因子：
3.4
通讯作者：
Wate SR
中科院分区：
文献类型：
--
作者：
Bhange VP;William SP;Sharma A;Gabhane J;Vaidya AN;Wate SR
园林生物量（GB）的定义是低密度和异质废物部分的园林垃圾，如剪草，修剪，花卉，树枝，杂草;根。GB通常不同于其他类型的生物质。GB主要通过维护绿色区域产生。GB可以被加工用于生物能源生产，因为它含有相当大量的纤维素和半纤维素。然而，预处理是必要的脱木素和促进纤维素部分的破坏。采用芬顿试剂对GB进行预处理，研究Fe 2+和H2 O2浓度对GB降解木质素和纤维素的影响。使用MINITAB RELEASE 14的ANOVA和数值点预测工具对数据进行统计分析，以优化不同的工艺变量，例如温度、Fe 2+和H2 O2的浓度。结果表明，芬顿试剂对GB有较好的预处理效果，但Fe ~（2+）和H_2O_2浓度对预处理效果起决定性作用。在芬顿的试剂中的H2 O2浓度的增加显着增加纤维素和木质素的降解率相比，增加的Fe 2+离子的浓度，导致木质纤维素的降解减少。
Garden biomass (GB) is defined as low density and heterogeneous waste fraction of garden rubbish like grass clippings, pruning, flowers, branches, weeds; roots. GB is generally different from other types of biomass. GB is mostly generated through maintenance of green areas. GB can be processed for bio energy production as it contains considerably good amount of cellulose and hemicellulose. However, pretreatment is necessary to delignify and facilitate disruption of cellulosic moiety. The aim of the present investigation was to pretreat GB using Fenton’s reagent and to study the influence of Fe2+ and H2O2 concentrations on degradation of lignin and cellulose. The data were statistically analyzed using ANOVA and numerical point prediction tool of MINITAB RELEASE 14 to optimize different process variables such as temperature, concentration of Fe2+ and H2O2. The results of the present investigation showed that Fenton’s reagent was effective on GB, however, concentration of Fe2+ and H2O2 play crucial role in determining the efficiency of pretreatment. An increase in H2O2 concentration in Fenton’s reagent significantly increased the rate of cellulose and lignin degradation in contrast to increasing concentration of Fe2+ ion which led to a decrease in lignocellulosic degradation.
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