New horizons in the application of a neglected biomass pyrolysis byproduct: A marked simultaneous decrease in ammonia and carbon dioxide emissions. (15th May 2021)

• Record Type: Journal Article
• Authors: Quan, Xin; Shan, Jianrong; Xing, Yu; Peng, Chi; Wang, Hongyan; Ju, Yong Chol; Zhao, Wei; Fan, Jinxia
• Is Part Of: Journal of cleaner production. Volume 297(2021)
• Publication Date: 2021-05-15
• Subjects: Wood vinegar -- Ammonia -- Carbon dioxide -- Animal housing facilities -- Biomass pyrolysis -- Biochar byproduct; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2021.126626
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: During the process of biochar production, large amounts of wood vinegar (WV) are obtained as a byproduct, and the objective of this study was to investigate the efficiency of this byproduct in reducing the ammonia (NH3 ) pollution and greenhouse gas emissions that are associated with animal husbandry. Special attention was given to the potential of WV in bringing about NH3 and carbon dioxide (CO2 ) emission reductions, and the dynamic mean of the concentrations of NH3 and CO2 as well as the effect of WV on several environmental indicators were investigated. For the first time, a positive correlation was observed between the removal efficiencies of NH3 and CO2 and WV concentration. Specifically, when the concentration of WV was 7%, the highest removal efficiencies for NH3 and CO2 were obtained (79.1 ± 1.8 and 54.3 ± 4.9%, respectively). These results confirmed that acidification using WV could be a promising approach for the synergistic mitigation of NH3 and CO2 emission in swine houses. The results of this study also clarify the connection between the products of biomass pyrolysis, livestock sector pollution, and gas emission reduction. Therefore, it is expected that the results of this study will generate a global discussion regarding the removal of the pollutants that are associated with animal housing facilities and these three fields to the end of promoting green development and cleaner production globally. Graphical abstract: Image 1 Highlights: WV was used in animal houses to reduce gas emissions for the first time. WV was proved to simultaneously reduce NH3 and CO2 in the pig house. The order of the effect of simultaneous emission reduction of WV: WV7 > WV3 > WV0. WV7 removal efficiency were 48.1 ± 25.8% (NH3 ) and 38.7 ± 14.6% (CO2 ), respectively.