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Phycoremediation of Municipal Wastewater by the Cold-Adapted Microalga Monoraphidium sp. Dek19.

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Title: Phycoremediation of Municipal Wastewater by the Cold-Adapted Microalga Monoraphidium sp. Dek19.
Authors: Hage, Adam1, Luckett, Nolan1, Holbrook, Gabriel P.1 gholbrook@niu.edu
Source: Water Environment Research (10614303). Nov2018, Vol. 90 Issue 11, p1938-1946. 9p.
Subjects: Sewage, Microalgae, Photosynthesis
Abstract: Present municipal wastewater treatment technologies often require substantial energy inputs, and fail to completely remove nitrate and phosphate before discharging effluent. In contrast, using the cold-adapted oleaginous microalga Monoraphidium sp. Dek 19 decreased levels of both these polluting ions to 0 mg/dL. Concurrent biomass production was greater at 10 °C than at 22 °C, showing that phycoremediation occurred at low temperatures previously thought to be unsuitable for algal-based treatment. Algal growth with uptake of nitrate and phosphate required only short bursts of aeration to suspend cells and maintain CO2 supply for photosynthesis. To save energy, culture aeration for 1 hour, 4 times per day, including during the dark cycle, yielded cell productivity and phycoremediation nearly equivalent to using 24-hour aeration. The authors conclude that Monoraphidium sp. Dek19 algae represent an economical effluent treatment at cool temperatures found in the high proportion of water resource recovery facilities in geographical areas experiencing cold winters. [ABSTRACT FROM AUTHOR]
Copyright of Water Environment Research (10614303) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Phycoremediation of Municipal Wastewater by the Cold-Adapted Microalga Monoraphidium sp. Dek19.
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  Data: <searchLink fieldCode="JN" term="%22Water+Environment+Research+%2810614303%29%22">Water Environment Research (10614303)</searchLink>. Nov2018, Vol. 90 Issue 11, p1938-1946. 9p.
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  Data: Present municipal wastewater treatment technologies often require substantial energy inputs, and fail to completely remove nitrate and phosphate before discharging effluent. In contrast, using the cold-adapted oleaginous microalga Monoraphidium sp. Dek 19 decreased levels of both these polluting ions to 0 mg/dL. Concurrent biomass production was greater at 10 °C than at 22 °C, showing that phycoremediation occurred at low temperatures previously thought to be unsuitable for algal-based treatment. Algal growth with uptake of nitrate and phosphate required only short bursts of aeration to suspend cells and maintain CO2 supply for photosynthesis. To save energy, culture aeration for 1 hour, 4 times per day, including during the dark cycle, yielded cell productivity and phycoremediation nearly equivalent to using 24-hour aeration. The authors conclude that Monoraphidium sp. Dek19 algae represent an economical effluent treatment at cool temperatures found in the high proportion of water resource recovery facilities in geographical areas experiencing cold winters. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Water Environment Research (10614303) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        StartPage: 1938
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      – SubjectFull: Photosynthesis
        Type: general
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      – TitleFull: Phycoremediation of Municipal Wastewater by the Cold-Adapted Microalga Monoraphidium sp. Dek19.
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              Text: Nov2018
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