Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/E3A61F78-5005-4190-9D40-7EE18C5EC8C1 | - |
| Αναγνωριστικό | https://doi.org/10.1007/s11356-021-12442-7 | - |
| Αναγνωριστικό | https://link.springer.com/article/10.1007/s11356-021-12442-7 | - |
| Γλώσσα | en | - |
| Μέγεθος | 15 pages | en |
| Τίτλος | Effect of design and operational parameters on nutrients and heavy metal removal in pilot floating treatment wetlands with Eichhornia Crassipes treating polluted lake water | en |
| Δημιουργός | Gaballah Mohamed S. | en |
| Δημιουργός | Ismail Khiary | en |
| Δημιουργός | Aboagye Dominic | en |
| Δημιουργός | Ismail Mona M. | en |
| Δημιουργός | Sobhi Mostafa | en |
| Δημιουργός | Stefanakis Alexandros | en |
| Δημιουργός | Στεφανακης Αλεξανδρος | el |
| Εκδότης | Springer | en |
| Περίληψη | Though 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 |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2023-02-14 | - |
| Ημερομηνία Δημοσίευσης | 2021 | - |
| Θεματική Κατηγορία | Floating treatment wetland | en |
| Θεματική Κατηγορία | Constructed wetlands | en |
| Θεματική Κατηγορία | Plant coverage | en |
| Θεματική Κατηγορία | Eichhornia crassipes | en |
| Θεματική Κατηγορία | Heavy metals | en |
| Θεματική Κατηγορία | Lake water | en |
| Θεματική Κατηγορία | Water depth | en |
| Θεματική Κατηγορία | Hydraulic retention time | en |
| Βιβλιογραφική Αναφορά | M. 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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