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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/wer.1405
|2 doi
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|a pubmed24n1041.xml
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|a (DE-627)NLM312552521
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|a (NLM)32678918
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Mollamohammada, Sara
|e verfasserin
|4 aut
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1 |
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|a Immobilized algae-based treatment of herbicide-contaminated groundwater
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|c 2021
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 03.02.2021
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|a Date Revised 03.02.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2020 Water Environment Federation.
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|a Scenedesmus species, immobilized on alginate gel, was found effective in removing nitrate, atrazine, magnesium, phosphorus, zinc, oxadiazon, and triallate from groundwater in a continuous flow reactor. The laboratory-scale experiments with synthetic groundwater, made of 8.8 mg/L NO3 -N and 90 µg/L atrazine, were performed at a hydraulic retention time of 7 days and the temperatures of 20 and 35°C. The highest uptake of nitrate and atrazine was observed at 20°C (97% and 70%, respectively). When tested in actual groundwater, 92% of nitrate, 100% of magnesium, 99.9% of phosphorus, and 92% of zinc were successfully removed at the end of 29 days' treatment operations. The algal beads removed 100% of oxadiazon and triallate in the first 10 days, but some of the herbicides diffused back into the solution toward the end of the treatment process. PRACTITIONER POINTS: Immobilized algae-alginate beads can remove nitrate, atrazine, oxadiazon, and triallate from groundwater in continuous flow reactor. The uptake rate of nitrate and atrazine is higher in room temperature (20°C). Same algae beads could be reused for herbicide uptake for the average of 10 days. The immobilized system is a natural sustainable alternative that can be used in groundwater pump and treat
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|a Journal Article
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|a Scenedesmus sp.
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|a biological treatment
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|a groundwater
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|a herbicides removal
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|a immobilized algae
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| 650 |
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|a nitrate removal
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| 650 |
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|a oxadiazon
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4 |
|a triallate
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|a Herbicides
|2 NLM
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| 650 |
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|a Nitrates
|2 NLM
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| 650 |
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|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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7 |
|a Atrazine
|2 NLM
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| 650 |
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|a QJA9M5H4IM
|2 NLM
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| 700 |
1 |
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|a Aly Hassan, Ashraf
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dahab, Mohamed
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 93(2021), 2 vom: 16. Feb., Seite 263-273
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
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|g volume:93
|g year:2021
|g number:2
|g day:16
|g month:02
|g pages:263-273
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|u http://dx.doi.org/10.1002/wer.1405
|3 Volltext
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|d 93
|j 2021
|e 2
|b 16
|c 02
|h 263-273
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