Improved AOX degradation in UV oxidative waste water treatment by dialysis with nanofiltration membrane.
In this article, the wastewater treatment by UV oxidation with and without preceding desalination is compared. The influence of different chloride concentrations on the TOC degradation and AOX concentration is analyzed. Nanofiltration membrane dialysis is used to separate the chloride ions from wastewater. It is demonstrated that a reduction of the chloride concentration leads to a faster TOC degradation compared to the treatment of non-desalinated wastewater. Furthermore, the additional formation of AOX during the process could be avoided in effect leading to a significant degradation of native AOX.
Seiss
M
M
Institute of Hydrochemistry. Technical University of Munich, Germany.
Gahr
A
A
Niessner
R
R
D000327:Adsorption; D001965:Bromides / Q000378:metabolism; D002712:Chlorides / Q000378:metabolism / Q000494:pharmacology; D003956:Dialysis / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D008851:Micropore Filters; D036103:Nanotechnology / Q000379:methods; D009930:Organic Chemicals / Q000737:chemistry / Q000378:metabolism*; D010084:Oxidation-Reduction / Q000528:radiation effects; D010777:Photochemistry; D012965:Sodium Chloride / Q000494:pharmacology; D013997:Time Factors; D014462:Ultrafiltration / Q000379:methods*; D014466:Ultraviolet Rays; D014865:Waste Disposal, Fluid; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*
D001965:Bromides; D002712:Chlorides; D009930:Organic Chemicals; D012965:Sodium Chloride