Adsorption and recovery nutrient from the tail liquid of biohydrogen production by zeolite.

التفاصيل البيبلوغرافية
العنوان:	Adsorption and recovery nutrient from the tail liquid of biohydrogen production by zeolite.
المؤلفون:	Zhou, Xiaokai, Li, Cunjie, Lu, Chaoyang, Zhang, Yang, Li, Yameng, Zhang, Huan, Zhang, Quanguo, Jing, Yanyan
المصدر:	Environment, Development & Sustainability; Nov2024, Vol. 26 Issue 11, p28859-28875, 17p
مصطلحات موضوعية:	WASTE recycling, POLLUTION, DESORPTION, CHEMISORPTION, FERTILIZERS
مستخلص:	In order to reduce environmental pollution caused by biohydrogen production tailing liquid (BHPTL) discharge and realize waste reuse of BHPTL, zeolite was selected as adsorbent to recycle nutrients contained in BHPTL, and the adsorption and desorption characteristics of zeolite acting on BHPTL were investigated. The results showed that the amount of zeolite added had a strong effect on the adsorption effect of NH4⁺ and K⁺, and the reaction temperature and solution pH had a weak effect on the adsorption effect of NH4⁺. The adsorption (desorption) time had a significant effect on the adsorption (desorption) process of K⁺, but had less effect on the adsorption and desorption process of NH4⁺. The maximum adsorption rates of NH4⁺ and K⁺ in zeolite were 79.05% and 66.33%, corresponding to desorption quantities of 0.616 mg/g and 4.00 mg/g. In addition, the equilibrium desorption rates of NH4⁺ and K⁺ in zeolite were 58.49% and 35.84%, corresponding to desorption quantities of 0.38 mg/g and 1.56 mg/g. The adsorption process of zeolites conforms to the quasi-secondary kinetic model and is dominated by chemisorption processes. This study provides a theoretical basis for the recovery of nutrients from BHPTL to produce useful substances, such as fertilizers and soil conditions. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات:	Complementary Index

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