铁基和硅基材料对有机垃圾厌氧发酵产沼气的促进作用研究

董晓莹; 付佳辉; 肖永厚; 周扬; 宁跃文; 徐卫平

doi:10.19912/j.0254-0096.tynxb.2021-0964

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太阳能学报 ›› 2022, Vol. 43 ›› Issue (11) : 317-324. DOI: 10.19912/j.0254-0096.tynxb.2021-0964

铁基和硅基材料对有机垃圾厌氧发酵产沼气的促进作用研究

董晓莹^1,2, 付佳辉², 肖永厚², 周扬³, 宁跃文³, 徐卫平^2,4

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STUDY ON PROMOTING EFFECT OF IRON-BASED AND SILICON-BASED MATERIALS ON BIOGAS PRODUCTION BY ANAEROBICFERMENTATION OF ORGANIC WASTE

Dong Xiaoying^1,2, Fu Jiahui², Xiao Yonghou², Zhou Yang³, Ning Yuewen³, Xu Weiping^2,4

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摘要

制备并考察3种功能材料（Fe₂O₃、Silicalite-1和Fe₂O₃@Silicalite-1）的3种投加量（50、100和150 mg）对有机垃圾（鸡粪）的厌氧发酵产气影响。结果表明：各功能材料组的日沼气产量和甲烷含量相比于空白组均得到有效提高,其中Fe₂O₃组分别提高31.07%和10.34%;Silicalite-1组分别提高23.98%和12.07%;Fe₂O₃@Silicalite-1组的产气效果最佳,其最高累计产气量和甲烷含量分别提高41.39%和17.24%。由此可见,将纳米Fe₂O₃分散负载在多孔材料（Silicalite-1）上可作为一种有效的厌氧发酵催化剂,该材料可避免传统方法中纳米颗粒的团聚造成的自身性能失活,从而通过厌氧发酵技术耦合复合材料实现有机垃圾处理工艺的能源效益和环境效益。

Abstract

Three synthesized functional materials, such as Fe₂O₃, Silicalite-1 and Fe₂O₃@Silicalite-1 are investigated for subsequent promotional effects upon gas generation by utilizing organic waste （chicken manure） in anaerobic fermentation for the first time. The results exhibited that the daily biogas yield and methane contents are effectively improved by using functional materials compared with the blank groups. Among them, the Fe₂O₃@Silicalite-1 demonstrated the best performance in terms of the maximum cumulative gas yield and methane contents are increased by 41.39% and 17.24% compared to date of blank group, respectively. Fe₂O₃ group increases by 31.07% and 10.34%, and Silicalite-1 increases by 23.98% and 12.07% when compared with the date of blank group, respectively. As opposed to agglomeration of nanoparticles in traditional methods, nanostructured Fe₂O₃ dispersed on the surface of porous material Silicate-1 could be employed as an effective anaerobic fermentation catalyst against deactivation caused by agglomeration and hence maintains superior performance. Therefore, the energy and environmental benefits of organic waste treatment process could be accomplished by smart tailoring of composite materials with anaerobic fermentation technology.

导出引用

董晓莹, 付佳辉, 肖永厚, 周扬, 宁跃文, 徐卫平. 铁基和硅基材料对有机垃圾厌氧发酵产沼气的促进作用研究[J]. 太阳能学报. 2022, 43(11): 317-324 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0964

Dong Xiaoying, Fu Jiahui, Xiao Yonghou, Zhou Yang, Ning Yuewen, Xu Weiping. STUDY ON PROMOTING EFFECT OF IRON-BASED AND SILICON-BASED MATERIALS ON BIOGAS PRODUCTION BY ANAEROBICFERMENTATION OF ORGANIC WASTE[J]. Acta Energiae Solaris Sinica. 2022, 43(11): 317-324 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0964

中图分类号： TK513.5

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