scholarly journals Impact of the water composition on the degradation kinetics of natural organic matter in photocatalytic membrane reactors

2015 ◽  
Vol 41 (1) ◽  
Author(s):  
Mariola Rajca
2018 ◽  
Vol 237 ◽  
pp. 126-132 ◽  
Author(s):  
Shuocong Li ◽  
Hong Liu ◽  
Rui Gao ◽  
Abliz Abdurahman ◽  
Juan Dai ◽  
...  

2012 ◽  
Vol 5 (1) ◽  
pp. 193-207 ◽  
Author(s):  
D. H. Moed ◽  
D. van Halem ◽  
J. Q. J. C. Verberk ◽  
J. A. M. van Paassen ◽  
L. C. Rietveld

<p><strong>Abstract.</strong> Previous laboratory column experiments have given evidence of competitive effects between different groundwater constituents in the process of subsurface arsenic removal, a process in which arsenic is removed from groundwater by injecting water with oxygen into the subsurface. The presence of phosphate and other anions significantly limited arsenic removal. To investigate the influence of phosphate in natural groundwater, pumping stations in Loosdrecht (the Netherlands) and Subotica (Serbia) both with low phosphate concentrations (&amp;lt;0.1 mg l<sup>−1</sup>) and considerable arsenic concentrations (30 and 110 μg l<sup>−1</sup>) were chosen, to perform experiments identical to the previous laboratory work. Despite of the absence of phosphate, the subsurface arsenic removal process performed poorly in Subotica, with 50% arsenic breakthrough occurring after 2 to 4 column pore volumes of abstracted water. In Loosdrecht subsurface arsenic removal showed more promising results, 50% breakthrough after 6 to 7 pore volumes, while having a lower pH than Subotica and similar silicate concentrations. The water composition of both locations gives reason to suggest that natural organic matter has a limiting effect on subsurface arsenic removal as well. The presented results have shown the complexity of factors influencing subsurface arsenic removal, making it very challenging to select appropriate sites.</p>


1994 ◽  
Vol 28 (6) ◽  
pp. 1383-1391 ◽  
Author(s):  
Terese M Olson ◽  
Philippe F Barbier

2009 ◽  
Vol 43 (10) ◽  
pp. 3574-3579 ◽  
Author(s):  
Qilin Li ◽  
Bin Xie ◽  
Yu Sik Hwang ◽  
Yuankai Xu

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