000189454 001__ 189454
000189454 005__ 20181203023256.0
000189454 0247_ $$2doi$$a10.1021/es400708w
000189454 022__ $$a0013-936X
000189454 02470 $$2ISI$$a000322059800042
000189454 037__ $$aARTICLE
000189454 245__ $$aElimination of Micropollutants during Post-Treatment of Hospital Wastewater with Powdered Activated Carbon, Ozone, and UV
000189454 260__ $$bAmerican Chemical Society$$c2013$$aWashington
000189454 269__ $$a2013
000189454 300__ $$a10
000189454 336__ $$aJournal Articles
000189454 520__ $$aA pilot-scale hospital wastewater treatment plant consisting of a primary clarifier, membrane bioreactor, and five post-treatment technologies including ozone (O-3), O-3/H2O2, powdered activated carbon (PAC), and low pressure UV light with and without TiO2 was operated to test the elimination efficiencies for 56 micropollutants. The extent of the elimination of the selected micropollutants (pharmaceuticals, metabolites and industrial chemicals) was successfully correlated to physical-chemical properties or molecular structure. By mass loading, 95% of all measured micropollutants in the biologically treated hospital wastewater feeding the post-treatments consisted of iodinated contrast media (ICM). The elimination of ICM by the tested post-treatment technologies was 50-65% when using 1.08 g O-3/gDOC, 23 mg/L PAC, or a UV dose of 2400 J/m(2) (254 nm). For the total load of analyzed pharmaceuticals and metabolites excluding ICM the elimination by zonation, PAC, and UV at the same conditions was 90%, 86%, and 33%, respectively. Thus, the majority of analyzed substances can be efficiently eliminated by zonation (which also provides disinfection) or PAC (which provides micropollutants removal, not only transformation). Some micropollutants recalcitrant to those two post-treatments, such as the ICM diatrizoate, can be substantially removed only by high doses of UV (96% at 7200 J/m(2)). The tested combined treatments (O-3/H2O2 and UV/TiO2) did not improve the elimination compared to the single treatments (O-3 and UV).
000189454 700__ $$uEawag, Swiss Fed Inst Aquat Sci & Technol, CH-8600 Dubendorf, Switzerland$$aKovalova, Lubomira
000189454 700__ $$uEawag, Swiss Fed Inst Aquat Sci & Technol, CH-8600 Dubendorf, Switzerland$$aSiegrist, Hansruedi
000189454 700__ $$0245482$$g210253$$aVon Gunten, Urs
000189454 700__ $$uEawag, Swiss Fed Inst Aquat Sci & Technol, CH-8600 Dubendorf, Switzerland$$aEugster, Jakob
000189454 700__ $$uEawag, Swiss Fed Inst Aquat Sci & Technol, CH-8600 Dubendorf, Switzerland$$aHagenbuch, Martina
000189454 700__ $$uEawag, Swiss Fed Inst Aquat Sci & Technol, CH-8600 Dubendorf, Switzerland$$aWittmer, Anita
000189454 700__ $$aMoser, Ruedi
000189454 700__ $$aMcardell, Christa S.
000189454 773__ $$j47$$tEnvironmental Science & Technology$$k14$$q7899-7908
000189454 909C0 $$xU12400$$0252250$$pLTQE
000189454 909CO $$particle$$pENAC$$ooai:infoscience.tind.io:189454
000189454 917Z8 $$x106743
000189454 937__ $$aEPFL-ARTICLE-189454
000189454 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000189454 980__ $$aARTICLE