TY - JOUR
T1 - Comparison of the treatment performances of blast furnace slag-based and gravel-based vertical flow wetlands operated identically for domestic wastewater treatment in Turkey
AU - Korkusuz, E. Asuman
AU - Beklioǧlu, Meryem
AU - Demirer, Göksel N.
N1 - Funding Information:
This work was partially funded by the METU Research Coordination and Industrial Liaison Office. The authors thank all of the directors of the offices under the General Secretariat of the Middle East Technical University for their assistance and help during the study. All of the wetland researchers, who answered our questions related to the project, shared their experiences and opinions and also encouraged us, are appreciated.
PY - 2005/2/20
Y1 - 2005/2/20
N2 - In 2001, to foster the practical development of constructed wetlands (CWs) used for domestic wastewater treatment in Turkey, vertical subsurface flow constructed wetlands (30 m2 of each) were implemented on the campus of the METU, Ankara, Turkey. The main objective of the research was to quantify the effect of different filter media on the treatment performance of vertical flow wetlands in the prevailing climate of Ankara. Thus, a gravel-filled wetland and a blast furnace granulated iron slag-filled wetland were operated identically with primarily treated domestic wastewater (3 m3 d -1) at a hydraulic loading rate of 0.100 m d-1, intermittently. Both of the wetland cells were planted with Phragmites australis. According to the first year results, average removal efficiencies for the slag and gravel wetland cells were as follows: total suspended solids (TSS) (63% and 59%), chemical oxygen demand (COD) (47% and 44%), NH4 +-N (88% and 53%), total nitrogen (TN) (44% and 39%), PO 43--P (44% and 1%) and total phosphorus (TP) (45% and 4%). The treatment performances of the slag-filled wetland were better than that of the gravel-filled wetland in terms of removal of phosphorus and production of nitrate. Since this study was a pioneer for implementation of subsurface constructed wetlands in Turkey using local sources, it has proved that this eco-technology could also be used effectively for water quality enhancement in Turkey.
AB - In 2001, to foster the practical development of constructed wetlands (CWs) used for domestic wastewater treatment in Turkey, vertical subsurface flow constructed wetlands (30 m2 of each) were implemented on the campus of the METU, Ankara, Turkey. The main objective of the research was to quantify the effect of different filter media on the treatment performance of vertical flow wetlands in the prevailing climate of Ankara. Thus, a gravel-filled wetland and a blast furnace granulated iron slag-filled wetland were operated identically with primarily treated domestic wastewater (3 m3 d -1) at a hydraulic loading rate of 0.100 m d-1, intermittently. Both of the wetland cells were planted with Phragmites australis. According to the first year results, average removal efficiencies for the slag and gravel wetland cells were as follows: total suspended solids (TSS) (63% and 59%), chemical oxygen demand (COD) (47% and 44%), NH4 +-N (88% and 53%), total nitrogen (TN) (44% and 39%), PO 43--P (44% and 1%) and total phosphorus (TP) (45% and 4%). The treatment performances of the slag-filled wetland were better than that of the gravel-filled wetland in terms of removal of phosphorus and production of nitrate. Since this study was a pioneer for implementation of subsurface constructed wetlands in Turkey using local sources, it has proved that this eco-technology could also be used effectively for water quality enhancement in Turkey.
KW - Blast furnace granulated slag
KW - Domestic wastewater treatment
KW - Gravel
KW - Nutrient removal
KW - Vertical flow constructed wetland
UR - http://www.scopus.com/inward/record.url?scp=18044381986&partnerID=8YFLogxK
U2 - 10.1016/j.ecoleng.2004.10.002
DO - 10.1016/j.ecoleng.2004.10.002
M3 - Article
AN - SCOPUS:18044381986
SN - 0925-8574
VL - 24
SP - 185
EP - 198
JO - Ecological Engineering
JF - Ecological Engineering
IS - 3
ER -
