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Statements

Subject Item
n2:RIV%2F60076658%3A12520%2F12%3A43883436%21RIV13-MSM-12520___
rdf:type
n7:Vysledek skos:Concept
dcterms:description
Increased attention is currently directed towards potential negative effects of pharmaceuticals and other micro-pollutants discharged into the aquatic environment via municipal sewage water. A number of additional treatment technologies, such as ozonation, have therefore been suggested as promising tools for improving the removal efficiency of pharmaceuticals in existing Sewage Treatment Plants (STPs). Constructed wetlands are also capable of removing a variety of micro-pollutants, including some pharmaceuticals, and could hence be a resource efficient complement to more advanced treatment technologies. The purpose of the present study was therefore to increase the knowledge base concerning the potential use of constructed wetlands as a treatment step to reduce emissions of organic micro-pollutants from municipal sewage effluents. Under cold winter conditions, incoming and outgoing waters from four Swedish free water surface wetlands, operated as final treatment steps of sewage effluent from municipal STPs, were sampled and analyzed for levels of a set of 92 pharmaceuticals and 22 inorganic components as well as assessed using subchronic ecotoxicity tests with a macro-alga and a crustacean. Sixty-five pharmaceuticals were detected in the range from 1 ng L-1 to 7.6 mu g L-1 in incoming and outgoing waters from the four investigated wetlands. Although the sampling design used in the present study lacks the robustness of volume proportional to 24 h composite samples, the average estimated removal rates ranged from 42% to 52%, which correlates to previous published values. Increased attention is currently directed towards potential negative effects of pharmaceuticals and other micro-pollutants discharged into the aquatic environment via municipal sewage water. A number of additional treatment technologies, such as ozonation, have therefore been suggested as promising tools for improving the removal efficiency of pharmaceuticals in existing Sewage Treatment Plants (STPs). Constructed wetlands are also capable of removing a variety of micro-pollutants, including some pharmaceuticals, and could hence be a resource efficient complement to more advanced treatment technologies. The purpose of the present study was therefore to increase the knowledge base concerning the potential use of constructed wetlands as a treatment step to reduce emissions of organic micro-pollutants from municipal sewage effluents. Under cold winter conditions, incoming and outgoing waters from four Swedish free water surface wetlands, operated as final treatment steps of sewage effluent from municipal STPs, were sampled and analyzed for levels of a set of 92 pharmaceuticals and 22 inorganic components as well as assessed using subchronic ecotoxicity tests with a macro-alga and a crustacean. Sixty-five pharmaceuticals were detected in the range from 1 ng L-1 to 7.6 mu g L-1 in incoming and outgoing waters from the four investigated wetlands. Although the sampling design used in the present study lacks the robustness of volume proportional to 24 h composite samples, the average estimated removal rates ranged from 42% to 52%, which correlates to previous published values.
dcterms:title
An evaluation of free water surface wetlands as tertiary sewage water treatment of micro-pollutants An evaluation of free water surface wetlands as tertiary sewage water treatment of micro-pollutants
skos:prefLabel
An evaluation of free water surface wetlands as tertiary sewage water treatment of micro-pollutants An evaluation of free water surface wetlands as tertiary sewage water treatment of micro-pollutants
skos:notation
RIV/60076658:12520/12:43883436!RIV13-MSM-12520___
n7:predkladatel
n8:orjk%3A12520
n3:aktivita
n20:P
n3:aktivity
P(ED2.1.00/01.0024)
n3:cisloPeriodika
04
n3:dodaniDat
n15:2013
n3:domaciTvurceVysledku
n19:9002375
n3:druhVysledku
n17:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
121954
n3:idVysledku
RIV/60076658:12520/12:43883436
n3:jazykVysledku
n10:eng
n3:klicovaSlova
Wastewater; Sewage effluent; Constructed wetlands; Ceramium tenuicorne; Nitocra spinipes
n3:klicoveSlovo
n6:Wastewater n6:Nitocra%20spinipes n6:Sewage%20effluent n6:Constructed%20wetlands n6:Ceramium%20tenuicorne
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[29DE934C9536]
n3:nazevZdroje
Ecotoxicology and Environmental Safety
n3:obor
n5:DJ
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
6
n3:projekt
n18:ED2.1.00%2F01.0024
n3:rokUplatneniVysledku
n15:2012
n3:svazekPeriodika
78
n3:tvurceVysledku
Grabic, Roman Borg, Hans Strae, Daniel Naslund, Maria Fick, Jerker Breitholtz, Magnus
n3:wos
000301316500010
s:issn
0147-6513
s:numberOfPages
9
n13:doi
10.1016/j.ecoenv.2011.11.014
n12:organizacniJednotka
12520