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Improved carbon sequestration by utilization of ferrous ions during different organic wastes composting.
Pan, Chaonan; Zhao, Yue; Chen, Xiaomeng; Zhang, Guogang; Xie, Lina; Wei, Zimin; Song, Caihong.
Afiliación
  • Pan C; College of Life Science, Northeast Agricultural University, Harbin, 150030, China.
  • Zhao Y; College of Life Science, Northeast Agricultural University, Harbin, 150030, China.
  • Chen X; College of Life Science, Northeast Agricultural University, Harbin, 150030, China.
  • Zhang G; Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China.
  • Xie L; Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China.
  • Wei Z; College of Life Science, Northeast Agricultural University, Harbin, 150030, China; Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China. Electronic address: zmwei@tjnu.edu.cn.
  • Song C; College of Life Science, Liaocheng University, Liaocheng, 252000, China.
J Environ Manage ; 347: 119188, 2023 Dec 01.
Article en En | MEDLINE | ID: mdl-37801948
The humic acid (HA) possesses a more recalcitrant structure, making it crucial carbon components that improve carbon sequestration. Moreover, ferrous ions could improve microbial activity and enhance compost humification, and their oxidation into iron oxides could adsorb carbon components for sequestration. Based on the advantages of low cost and easy availability of ferrous sulfate (FeSO4), this study investigated the effect of FeSO4 on carbon sequestration during composting. Chicken manure (CM) and food waste (FW) composting were carried out in four treatments, namely control (CM, FW) and 5% (w/w) FeSO4 treated groups (CM+, FW+). Results indicated that FeSO4 increased HA content, improved organic carbon stability. Carbon loss for CM, CM+, FW and FW + treatments were 48.5%, 46.2%, 45.0%, and 40.3%, respectively. Meanwhile, FeSO4 enhanced the function of bacterial taxa involved in HA synthesis in CM + treatment, and improved the number of core bacteria significantly associated with formation of HA and iron oxide. SEM analysis verified that role of FeSO4 was significant in promoting HA synthesis during CM + composting, while it was remarkably in enhancing HA sequestration during FW + composting. This article provided fundamental theoretical backing for enhancing HA production and improving carbon sequestration during different materials composting.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Compostaje / Eliminación de Residuos Límite: Animals Idioma: En Revista: J Environ Manage Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Compostaje / Eliminación de Residuos Límite: Animals Idioma: En Revista: J Environ Manage Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido