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Dynamics and Treatability of Heavy Metals in Pig Farm Effluent Wastewater by Using UiO-66 and UiO-66-NH2 Nanomaterials as Adsorbents

Authors
  • Wang, Leiping1, 2, 3
  • Dai, Xiaorong2, 3
  • Man, Zun4
  • Li, Jianrong2, 3
  • Jiang, Yifeng1
  • Liu, Dezhao4
  • Xiao, Hang2, 3
  • Shah, Sanjay5
  • 1 Zhejiang University of Technology (ZJUT), Hangzhou, 310014, China , Hangzhou (China)
  • 2 Ningbo Urban Environment Observation and Research Station, Chinese Academy of Sciences, Ningbo, 315800, China , Ningbo (China)
  • 3 Chinese Academy of Sciences, Xiamen, 361021, China , Xiamen (China)
  • 4 Zhejiang University, Hangzhou, 310058, China , Hangzhou (China)
  • 5 North Carolina State University, Raleigh, NC 27695, USA , Raleigh (United States)
Type
Published Article
Journal
Water Air & Soil Pollution
Publisher
Springer-Verlag
Publication Date
Jul 06, 2021
Volume
232
Issue
7
Identifiers
DOI: 10.1007/s11270-021-05229-6
Source
Springer Nature
Keywords
Disciplines
  • Article
License
Yellow

Abstract

Concentrated pig production is a major source of environmental pollution. Metal–organic frameworks (MOFs) show potential for reducing heavy metal pollution. Two zirconium-based octahedral MOFs, UiO-66 and UiO-66-NH2, were prepared by solvothermal method and were characterized by XRD, SEM, FT-IR, and BET. The adsorption capacity, treatability, and reusability of the adsorbents were tested in batch experiments. The optimum adsorbent dosage was 4 g/L, and the maximum removal rates at room temperature of chromium (Cr), manganese (Mn), iron (Fe), nickel (Ni), and Arsenic (As) on UiO-66 were 76.93%, 93.73%, 88.81%, 83.30%, and 86.11%, respectively. In the kinetic experiments, the adsorption process achieved equilibrium within 90 min and generally conformed to the quasi-second kinetics model. The results demonstrated that UiO-66 and UiO-66-NH2 can be used over a wide range of pH for removal of most HMs on a large scale. Meanwhile, the adsorbents maintained excellent adsorption capacity after at least 3 cycles. Overall, UiO-66 and UiO-66-NH2 have a high potential for practical application on the recovery of heavy metals in the complex wastewater from animal farms.

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