Development of Amyloid-Fibrils-like Functional Materials from Both Anaerobically Digested Sludge and Waste Activated Sludge for Heavy Metal Adsorption

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Development of Amyloid-Fibrils-like Functional Materials from Both Anaerobically Digested Sludge and Waste Activated Sludge for Heavy Metal Adsorption
	Yang, Min; Wang, Jiaqi; Liu, Ruiping; Hu, Chengzhi; Liu, Huijuan; Qu, Jiuhui
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2020-06-01
卷号	8 期号:21 页码:7795-7805
关键词	Dissolved organic substance (DOS) Amyloid fibrils Waste activated sludge (WAS) Anaerobically digested sludge (ADS) Heavy metals Adsorption
ISSN号	2168-0485
英文摘要	Proper disposal of sludge from wastewater treatment plants became a great challenge because of the increasing massive production along with strict environmental specifications, and resource utilization was an attractive alternative solution. In this study, we prepared the dissolved organic substance-based amyloid-fibrils-like functional materials (DOS-AFs) with a long-chain fibrous structure and plentiful active surface groups from both anaerobically digested sludge (ADS) and waste activated sludge (WAS). The optimum pH for DOS fibrosis is observed to be pH 1 and 2. The tiny particle rather than fiber is observed at an elevated pH of 5. DOS-AFs exhibit a good performance toward different heavy metals of Cu, Ni, Zn, Pd, and Ag, and the adsorption capability of WAS-DOS-AFs-1 was 4.9, 3.8, 4.5, 11.5, and 23.2 mu g/mg dry solid, respectively. The 3-D excitation-emission matrix (EEM) spectra results indicated that the proteins and humic substances in DOS-AFs were both strong ligands for heavy metals. The formation of surface complexes was the dominant mechanisms involved in the adsorption; and Fourier transform infrared (FTIR) spectroscopy analysis indicated the amide and ether groups are the main adsorption sites on ADS-DOS-AFs, whereas the amide and hydroxyl groups on WAS-DOS-AFs dominate in the adsorption. DOS-AFs with good adsorption performance are potentially valuable for the removal of heavy metals from wastewater and the recovery of precious metals.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45265]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
推荐引用方式 GB/T 7714	Yang, Min,Wang, Jiaqi,Liu, Ruiping,et al. Development of Amyloid-Fibrils-like Functional Materials from Both Anaerobically Digested Sludge and Waste Activated Sludge for Heavy Metal Adsorption[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2020,8(21):7795-7805.
APA	Yang, Min,Wang, Jiaqi,Liu, Ruiping,Hu, Chengzhi,Liu, Huijuan,&Qu, Jiuhui.(2020).Development of Amyloid-Fibrils-like Functional Materials from Both Anaerobically Digested Sludge and Waste Activated Sludge for Heavy Metal Adsorption.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,8(21),7795-7805.
MLA	Yang, Min,et al."Development of Amyloid-Fibrils-like Functional Materials from Both Anaerobically Digested Sludge and Waste Activated Sludge for Heavy Metal Adsorption".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 8.21(2020):7795-7805.