000183672 001__ 183672
000183672 005__ 20190316235550.0
000183672 0247_ $$2doi$$a10.1371/journal.pone.0058864
000183672 022__ $$a1932-6203
000183672 02470 $$2ISI$$a000316936100141
000183672 037__ $$aARTICLE
000183672 245__ $$aEnhancement of micropollutant degradation at the outlet of small wastewater treatment plants
000183672 269__ $$a2013
000183672 260__ $$bPublic Library of Science$$c2013$$aSan Francisco
000183672 300__ $$a12
000183672 336__ $$aJournal Articles
000183672 520__ $$aThe aim of this work was to evaluate low-cost and easy-to-operate engineering solutions that can be added as a polishing step to small wastewater treatment plants to reduce the micropollutant load to water bodies. The proposed design combines a sand filter/constructed wetland with additional and more advanced treatment technologies (UV degradation, enhanced adsorption to the solid phase, e.g., an engineered substrate) to increase the elimination of recalcitrant compounds. The removal of five micropollutants with different physico-chemical characteristics (three pharmaceuticals: diclofenac, carbamazepine, sulfamethoxazole, one pesticide: mecoprop, and one corrosion inhibitor: benzotriazole) was studied to evaluate the feasibility of the proposed system. Separate batch experiments were conducted to assess the removal efficiency of UV degradation and adsorption. The efficiency of each individual process was substance-specific. No process was effective on all the compounds tested, although elimination rates over 80% using light expanded clay aggregate (an engineered material) were observed. A laboratory-scale flow-through setup was used to evaluate interactions when removal processes were combined. Four of the studied compounds were partially eliminated, with poor removal of the fifth (benzotriazole). The energy requirements for a field-scale installation were estimated to be the same order of magnitude as those of ozonation and powdered activated carbon treatments.
000183672 6531_ $$aEngineered constructed wetlands
000183672 6531_ $$aLaboratory experiment
000183672 6531_ $$aPharmaceuticals
000183672 6531_ $$aSand filter
000183672 6531_ $$aUV degradation
000183672 6531_ $$aBatch experiments
000183672 6531_ $$aLight expanded clay aggregate
000183672 700__ $$0242873$$g103441$$aRossi, Luca
000183672 700__ $$0245517$$g166793$$aQueloz, Pierre
000183672 700__ $$0240283$$g175968$$aBrovelli, Alessandro
000183672 700__ $$aMargot, Jonas$$g159595$$0242878
000183672 700__ $$aBarry, David Andrew$$g169209$$0240314
000183672 773__ $$j8$$tPLoS ONE$$k3$$qe58864
000183672 8564_ $$uhttp://www.plosone.org/$$zURL
000183672 8564_ $$uhttps://infoscience.epfl.ch/record/183672/files/journal.pone.0058864.pdf$$zPublisher's version$$s400383$$yPublisher's version
000183672 909C0 $$xU11221$$0252101$$pECOL
000183672 909C0 $$pECHO$$xU10273$$0252014
000183672 909CO $$qGLOBAL_SET$$particle$$pENAC$$ooai:infoscience.tind.io:183672
000183672 917Z8 $$x169209
000183672 917Z8 $$x169209
000183672 937__ $$aEPFL-ARTICLE-183672
000183672 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000183672 980__ $$aARTICLE