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Title: Effect of Biofouling on the Performance of Amidoxime-Based Polymeric Uranium Adsorbents

Journal Article · · Industrial and Engineering Chemistry Research

The Marine Science Laboratory at the Pacific Northwest National Laboratory evaluated the impact of biofouling on uranium adsorbent performance. A surface modified polyethylene adsorbent fiber provided by Oak Ridge National Laboratory, AF adsorbent, was tested either in the presence or absence of light to simulate deployment in shallow or deep marine environments. 42-day exposure tests in column and flume settings showed decreased uranium uptake by biofouling. Uranium uptake was reduced by up to 30 %, in the presence of simulated sunlight, which also increased biomass accumulation and altered the microbial community composition on the fibers. These results suggest that deployment below the photic zone would mitigate the effects of biofouling, resulting in greater yields of uranium extracted from seawater.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1326141
Report Number(s):
PNNL-SA-113339; AF5855000
Journal Information:
Industrial and Engineering Chemistry Research, Vol. 55, Issue 15; ISSN 0888-5885
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English

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Preparation of ZnO nanoparticle loaded amidoximated wool fibers as a promising antibiofouling adsorbent for uranium( vi ) recovery journal January 2019
Polypropylene nonwoven fabric modified with oxime and guanidine for antibiofouling and highly selective uranium recovery from seawater journal May 2019
Engineering robust metal–phenolic network membranes for uranium extraction from seawater journal January 2019
Ultrafast Recovery of Uranium from Seawater by Bacillus velezensis Strain UUS‐1 with Innate Anti‐Biofouling Activity journal July 2019
The use of silver nanoparticles for the recovery of uranium from seawater by means of biofouling mitigation journal January 2018