Biosorption of Pb(II) and Zn(II) from aqueous solutions by living B350   biomass

doi:10.1080/19443994.2014.929978

CORC > 北京大学 > 环境科学与工程学院

	Biosorption of Pb(II) and Zn(II) from aqueous solutions by living B350 biomass
	Qu, Yanzhi ; Meng, Qingqiang ; Zhao, Quanlin ; Ye, Zhengfang
刊名	DESALINATION AND WATER TREATMENT
	2015
关键词	Zn Kinetics Pb B350 biomass Biosorption MICELLAR-ENHANCED ULTRAFILTRATION WASTE-WATER ACTIVATED CARBON IMMOBILIZED MICROORGANISMS REMOVAL EQUILIBRIUM ADSORPTION CADMIUM LEAD ZINC
DOI	10.1080/19443994.2014.929978
英文摘要	Beneficiation production wastewater is a kind of wastewater generated from exploiting minerals, where the main pollutants are heavy metals and organic agents. In this study, living B350 biomass (a mixture of various micro-organisms) was used to remove Pb(II) and Zn(II) from aqueous solutions. The effects of pH, biomass dosage and contact time on removal ratios of Pb(II) and Zn(II) were studied. Two kinetic models, pseudo-first-order and pseudo-second-order, were used to fit the experimental results. The chemical changes of B350 biomass before and after adsorption were monitored by Energy Dispersion X-ray (EDX) spectroscopy and Fourier Transform Infrared (FTIR) spectroscopy. In addition, the feasibility of B350 to remove heavy metals and m-cresol simultaneously was investigated. The results showed that the removal ratios of heavy metals increased with increasing dosage of biosorbent. When B350 dosage was 1.0 g/L, 84.88% of Pb(II) and 38.06% of Zn(II) can be removed after 2 h of adsorption at 25 degrees C. The adsorption of Pb(II) and Zn(II) on B350 was coincident with Langmuir and Freundlich isotherms, respectively. Pseudo-second-order model can best describe the adsorption process. EDX and FTIR results indicated that ion exchange and complexation might exist during the adsorption of Pb(II) and Zn(II). The living B350 biomass can not only adsorb heavy metal ions, but also biodegrade organic pollutants through metabolizing itself.; Major Special Technological Project on Water Pollution Control and Management of China [2009ZX07212-001-04]; SCI(E); ARTICLE; pkuqyz@163.com; mengqingqiang@pku.edu.cn; zhaoquanlin@pku.edu.cn; zhengfangye@163.com; 7; 1832-1839; 55
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/417191]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Qu, Yanzhi,Meng, Qingqiang,Zhao, Quanlin,et al. Biosorption of Pb(II) and Zn(II) from aqueous solutions by living B350 biomass[J]. DESALINATION AND WATER TREATMENT,2015.
APA	Qu, Yanzhi,Meng, Qingqiang,Zhao, Quanlin,&Ye, Zhengfang.(2015).Biosorption of Pb(II) and Zn(II) from aqueous solutions by living B350 biomass.DESALINATION AND WATER TREATMENT.
MLA	Qu, Yanzhi,et al."Biosorption of Pb(II) and Zn(II) from aqueous solutions by living B350 biomass".DESALINATION AND WATER TREATMENT (2015).