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Effect of design and operational parameters on nutrients and heavy metal removal in pilot floating treatment wetlands with Eichhornia Crassipes treating polluted lake water

Gaballah Mohamed S., Ismail Khiary, Aboagye Dominic, Ismail Mona M., Sobhi Mostafa, Stefanakis Alexandros

Απλή Εγγραφή


URIhttp://purl.tuc.gr/dl/dias/E3A61F78-5005-4190-9D40-7EE18C5EC8C1-
Αναγνωριστικόhttps://doi.org/10.1007/s11356-021-12442-7-
Αναγνωριστικόhttps://link.springer.com/article/10.1007/s11356-021-12442-7-
Γλώσσαen-
Μέγεθος15 pagesen
ΤίτλοςEffect of design and operational parameters on nutrients and heavy metal removal in pilot floating treatment wetlands with Eichhornia Crassipes treating polluted lake wateren
ΔημιουργόςGaballah Mohamed S.en
ΔημιουργόςIsmail Khiaryen
ΔημιουργόςAboagye Dominicen
ΔημιουργόςIsmail Mona M.en
ΔημιουργόςSobhi Mostafaen
ΔημιουργόςStefanakis Alexandrosen
ΔημιουργόςΣτεφανακης Αλεξανδροςel
ΕκδότηςSpringeren
ΠερίληψηThough having an economic and ecological impact on Marriott Lake management in Egypt, water hyacinth (Eichhornia crassipes) is an aquatic floating macrophyte with a known phytoremediation potential. In order to assess its remediation potential, pilot floating treatment wetlands (FTWs) with E. crassipes were built in duplicates to evaluate the removal of nutrients and heavy metals from the polluted lake water. The experimental design included units with different water depths (15, 25, and 35 cm; D15, D25, and D35, respectively) and plant coverage (90, 70, 50, and 0%; P90, P70, P50, and P0, respectively). The pilot FTWs were monitored over a 7-day operation cycle to identify the optimum combination of design (plant coverage, water depth) and operation (hydraulic retention time; HRT) parameters needed for maximum BOD5, TN, NH4-N, and TP removal. NH4-N removal reached 97.4% in the D25P50 unit after 3 days, BOD5 75% in the D15P90 after 3 days, TN 82% in the D25P70 after 4 days, and TP 84.2% in the D35P70 after 4 days. The open-water evaporation rate was higher than the evapotranspiration rate in the planted units, probably due to the warm climate of the study area. Metals were also sufficiently removed through bioaccumulation in plant tissues in the order of Fe > Pb > Cu > Ni (62.5%, 88.9%, 81.7%, and 80.4% for D25P50, D25P70, D25P50, and D25P90, respectively), while most of the assimilated metal mass was translocated to the plant roots. The biochemical composition of the plant tissue was significantly different between the shoot and root parts. Overall, the FTW with 70% E. crassipes coverage, 25-cm water depth, and an HRT of 3–5 days was identified as the optimum design for effective remediation of the polluted Marriott Lake in Egypt.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2023-02-14-
Ημερομηνία Δημοσίευσης2021-
Θεματική ΚατηγορίαFloating treatment wetlanden
Θεματική ΚατηγορίαConstructed wetlandsen
Θεματική ΚατηγορίαPlant coverageen
Θεματική ΚατηγορίαEichhornia crassipesen
Θεματική ΚατηγορίαHeavy metalsen
Θεματική ΚατηγορίαLake wateren
Θεματική ΚατηγορίαWater depthen
Θεματική ΚατηγορίαHydraulic retention timeen
Βιβλιογραφική ΑναφοράM. S. Gaballah, K. Ismail, D. Aboagye, M. M. Ismail, M. Sobhi, and A. I. Stefanakis, “Effect of design and operational parameters on nutrients and heavy metal removal in pilot floating treatment wetlands with Eichhornia Crassipes treating polluted lake water,” Environ. Sci. Pollut. Res., vol. 28, no. 20, pp. 25664–25678, May 2021, doi: 10.1007/s11356-021-12442-7.en

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