Composite nanofiber membranes to enhance the performance of high solids anaerobic digestion of organic rural household waste resources
文献类型： 外文期刊
作者： Liu, Yang 1 ; Xi, Yonglan 1 ; Ye, Xiaomei 1 ; Zhang, Yingpeng 1 ; Wang, Chengcheng 1 ; Jia, Zhaoyan 1 ; Cao, Chunhui 1 ; Han, Ting 1 ; Du, Jing 1 ; Kong, Xiangping 1 ; Chen, Zhongbing 4 ;
作者机构： 1.Jiangsu Acad Agr Sci, Nanjing 210014, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Crop & Livestock Integrat, Nanjing 210014, Peoples R China
3.Jiangsu Collaborat Innovat Ctr Solid Organ Waste R, Nanjing 210014, Peoples R China
4.Czech Univ Life Sci Prague, Fac Environm Sci, Dept Appl Ecol, Kamycka 129, Praha Suchdol 16500, Czech Republic
关键词： Methane production; Anaerobic digestion; High solids; Ammonia nitrogen; Nanofiber membrane composites; Prussian blue-like compound nanoparticles
期刊名称：RENEWABLE ENERGY （ 影响因子：8.7； 五年影响因子：8.4 ）
ISSN： 0960-1481
年卷期： 2024 年 220 卷
页码：
收录情况： SCI
摘要： This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) with a stainless steel mesh as the carrier (NMCs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid (total solid content of 15 %) anaerobic digestion (AD) and increase methane production. NMCs with different PNP contents were added to high-solid AD. When NMC with 15 % PNPs was added, the concentrations of volatile fatty acids and ammonia nitrogen were lower than those of the blank control group, and the methane yield was the highest (301.31 mL/g volatile solids [VS]), at 2.8 times higher than that of the blank control group. The R2 value of the modified Gompertz equation was 0.997. During digestion, the activities of extracellular protease and coenzyme F420 were higher than those of the control group. NMCs were successfully recovered at the end of the experiment, and confocal scanning three-dimensional electron micrographs indicated that NMC with 15 % PNPs of NMCs had stronger biological activity; microbial community structure analysis indicated increased abundance of hydrogenotrophic methanogens in this group. The study provides a new solution for improving the efficiency of biogas production and the recycling of exogenously added materials.
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