Relieving ammonia nitrogen inhibition in high concentration anaerobic digestion of rural organic household waste by Prussian blue analogue nanoparticles addition. (June 2021)

• Record Type: Journal Article
• Authors: Liu, Yang; Xiao, Qingbo; Jia, Zhaoyan; Wang, Chengcheng; Ye, Xiaomei; Du, Jing; Kong, Xiangping; Xi, Yonglan
• Is Part Of: Bioresource technology. Volume 330(2021)
• Publication Date: 2021-06
• Subjects: Rural organic household waste -- Anaerobic digestion -- Prussian blue analogue nanoparticles -- Ammonia nitrogen; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2021.124979
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: PNPs was firstly applied to the anaerobic digestion of rural organic household waste to remove the inhibition of ammonia nitrogen. Prussian blue analogue nanoparticles can promote anaerobic digestion performance of nitrogen-rich raw materials. Prussian blue analogue nanoparticles can increase methane production significantly. The adsorption capacity of PNPs recycling for 20 times is still 98.92% of the initial adsorption capacity. Abstract: The application of Prussian blue analogue nanoparticles in anaerobic digestion was firstly used to evaluate the removal effect of ammonia nitrogen inhibition in anaerobic digestion. We have successfully prepared Prussian blue analogue nanoparticles, which has a high adsorption capacity of ammonia nitrogen in anaerobic digestion is 71.09 mg/g. The high concentration anaerobic digestion of rural organic household waste was not successful because of the serious inhibition of ammonia nitrogen. After adding Prussian blue analogue nanoparticles, the methane production of each group increased greatly, up to 302.22 ml/gVS. The concentration of ammonia nitrogen in anaerobic digestion decreased to 1700.77 mg/l. Prussian blue analogue nanoparticles have a good application prospect in high concentration anaerobic digestion of rural organic household waste enriched with a high concentration of ammonia nitrogen.