Transformation of Trace Organic Contaminants from Reverse Osmosis Concentrate by Open-Water Unit-Process Wetlands with and without Ozone Pretreatment

2020 ◽  
Vol 54 (24) ◽  
pp. 16176-16185
Author(s):  
Rachel C. Scholes ◽  
Jacob F. King ◽  
William A. Mitch ◽  
David L. Sedlak
Keyword(s):  
Reverse Osmosis ◽  
Organic Contaminants ◽  
Open Water ◽  
Trace Organic Contaminants ◽  
Unit Process ◽  
Ozone Pretreatment ◽  
Trace Organic

Biotransformation of Trace Organic Contaminants in Open-Water Unit Process Treatment Wetlands

2014 ◽  
Vol 48 (9) ◽  
pp. 5136-5144 ◽  
Author(s):  
Justin T. Jasper ◽  
Zackary L. Jones ◽  
Jonathan O. Sharp ◽  
David L. Sedlak
Keyword(s):  
Organic Contaminants ◽  
Open Water ◽  
Treatment Wetlands ◽  
Trace Organic Contaminants ◽  
Unit Process ◽  
Trace Organic

scholarly journals Electrochemical oxidation of trace organic contaminants in reverse osmosis concentrate using RuO2/IrO2-coated titanium anodes

2011 ◽  
Vol 45 (4) ◽  
pp. 1579-1586 ◽  
Author(s):  
Jelena Radjenovic ◽  
Arseto Bagastyo ◽  
René A. Rozendal ◽  
Yang Mu ◽  
Jürg Keller ◽  
...  
Keyword(s):  
Electrochemical Oxidation ◽  
Reverse Osmosis ◽  
Organic Contaminants ◽  
Trace Organic Contaminants ◽  
Trace Organic

scholarly journals Comparison of the removal of hydrophobic trace organic contaminants by forward osmosis and reverse osmosis

2012 ◽  
Vol 46 (8) ◽  
pp. 2683-2692 ◽  
Author(s):  
Ming Xie ◽  
Long D. Nghiem ◽  
William E. Price ◽  
Menachem Elimelech
Keyword(s):  
Reverse Osmosis ◽  
Organic Contaminants ◽  
Forward Osmosis ◽  
Trace Organic Contaminants ◽  
Trace Organic

scholarly journals Unit Process Wetlands for Removal of Trace Organic Contaminants and Pathogens from Municipal Wastewater Effluents

2013 ◽  
Vol 30 (8) ◽  
pp. 421-436 ◽  
Author(s):  
Justin T. Jasper ◽  
Mi T. Nguyen ◽  
Zackary L. Jones ◽  
Niveen S. Ismail ◽  
David L. Sedlak ◽  
...  
Keyword(s):  
Organic Contaminants ◽  
Municipal Wastewater ◽  
Trace Organic Contaminants ◽  
Unit Process ◽  
Trace Organic ◽  
Wastewater Effluents

scholarly journals Removal of Trace Organic Contaminants by Parallel Operation of Reverse Osmosis and Granular Activated Carbon for Drinking Water Treatment

Membranes ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 33
Author(s):  
Norbert Konradt ◽  
Jan Gerrit Kuhlen ◽  
Hans-Peter Rohns ◽  
Birgitt Schmitt ◽  
Uwe Fischer ◽  
...  
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Organic Contaminants ◽  
Drinking Water Treatment ◽  
Parallel Operation ◽  
Trace Organic Contaminants ◽  
Salt Passage ◽  
Trace Organic

In response to increasingly stringent restrictions for drinking water quality, a parallel operation of two common technologies, low-pressure reverse osmosis (LPRO) and activated carbon filtration (ACF), was investigated in a comprehensive five-month pilot study for the removal of 32 typical trace organic contaminants (TrOCs) from Rhine bank filtrates employing a semi- technical plant. TrOCs have been divided into three groups: polyfluorinated aliphatic compounds; pharmaceuticals, pesticides and metabolites; in addition to volatiles, nitrosamines and aminopolycarboxylic acids, which were also examined. The net pressure behavior, normalized salt passage and rejection of TrOCs by LPRO were investigated and compared with ACF operation. In addition, autopsies from the leading and last membrane modules were performed using adenosine triphosphate (ATP), total organic carbon (TOC), ICP-OES and SEM-EDX techniques. Generally, rather stable LPRO membrane performance with limited membrane fouling was observed. TrOCs with a molecular weight of ≥ 150 Da were completely retained by LPRO, while the rejection of di- and trichloro compounds improved as the filtration progressed. ACF also showed significant removal for most of the TrOCs, but without desalination. Accordingly, the ACF and LPRO can be operated in parallel such that the LPRO permeate and the ACF-treated bypass can be mixed to produce drinking water with adjustable hardness and significantly reduced TrOCs.

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