Articles with "ammonia nitrogen" as a keyword



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Co-production of lipid, exopolysaccharide and single-cell protein by Sporidiobolus pararoseus under ammonia nitrogen-limited conditions

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Published in 2020 at "Bioprocess and Biosystems Engineering"

DOI: 10.1007/s00449-020-02335-3

Abstract: With the rapid depletion of crude resources, microorganism lipids have started attracting increasing attention because of their renewable qualities. However, their production is limited by high costs. In this study, we aimed to reduce the… read more here.

Keywords: single cell; production; ammonia nitrogen; sporidiobolus pararoseus ... See more keywords
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Significant removal of ammonia nitrogen in low concentration from aqueous solution at low pH by advanced air stripping

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Published in 2021 at "Environmental Science and Pollution Research"

DOI: 10.1007/s11356-021-13164-6

Abstract: In recent years, the excess discharge of ammonia nitrogen from wastewater into surface water has been regulated by more stringent standard. The air stripping method is successfully used to treatment of high-concentration ammonia nitrogen; however,… read more here.

Keywords: advanced air; concentration; air stripping; ammonia nitrogen ... See more keywords
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Analysis on the removal of ammonia nitrogen using peroxymonosulfate activated by nanoparticulate zero-valent iron

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Published in 2017 at "Chemical Papers"

DOI: 10.1007/s11696-017-0144-5

Abstract: Nanoparticulate zero-valent iron (Fe0) was used to activate peroxymonosulfate (PMS) to remove low concentration of ammonia nitrogen in the aqueous system. The removal process was investigated under various conditions. It was indicated that the removal… read more here.

Keywords: fe0; removal; ammonia; nanoparticulate zero ... See more keywords
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Effects of mechanical aeration in the waste-treatment cells of split-pond aquaculture systems on water quality

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Published in 2017 at "Aquaculture"

DOI: 10.1016/j.aquaculture.2017.08.001

Abstract: Abstract Split-pond systems divide a traditional pond into a 1:4 relationship where 20% of the water surface area is designated to fish production and 80% is designated to waste-treatment. Water passes from the fish cell… read more here.

Keywords: nitrogen; oxygen; water; treatment ... See more keywords
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Ammonia capture from wastewater with a high ammonia nitrogen concentration by water splitting and hollow fiber extraction

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Published in 2020 at "Chemical Engineering Science"

DOI: 10.1016/j.ces.2020.115934

Abstract: Abstract Water contamination caused by ammonia effluents has become a critical environmental issue. In this study, a coupled system of water splitting and hollow fiber extraction was proposed for highly efficient ammonia capture from wastewater… read more here.

Keywords: water; nitrogen concentration; ammonia; ammonia capture ... See more keywords
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Enhanced electrokinetic remediation of manganese and ammonia nitrogen from electrolytic manganese residue using pulsed electric field in different enhancement agents.

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Published in 2019 at "Ecotoxicology and environmental safety"

DOI: 10.1016/j.ecoenv.2019.01.025

Abstract: Electrolytic manganese residue (EMR) is a solid waste generated in the process of producing electrolytic metal manganese and contains a lot of manganese and ammonia nitrogen. In this study, electrokinetic remediation (EK) of manganese and… read more here.

Keywords: field; manganese ammonia; ammonia; enhancement agents ... See more keywords
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Simultaneous optimizing removal of manganese and ammonia nitrogen from electrolytic metal manganese residue leachate using chemical equilibrium model.

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Published in 2019 at "Ecotoxicology and environmental safety"

DOI: 10.1016/j.ecoenv.2019.01.071

Abstract: Electrolytic metal manganese residue leachate (EMMRL) was produced from long-term deposition of electrolytic metal manganese residue. EMMRL contains huge amount of manganese and ammonia nitrogen which could seriously damage the ecological environment. In this study,… read more here.

Keywords: electrolytic metal; manganese ammonia; metal manganese; ammonia ... See more keywords
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Effects of ammonia nitrogen on gill mitochondria in clam Ruditapes philippinarum.

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Published in 2019 at "Environmental toxicology and pharmacology"

DOI: 10.1016/j.etap.2018.12.003

Abstract: Ammonia nitrogen exposure has been found to significantly increase the early apoptosis rates of gill cells, affect the contents of ATP and disturb expressions of calcium-related genes in clam Ruditapes philippinarum. Mitochondria are the centers… read more here.

Keywords: nitrogen; clam ruditapes; gill; ruditapes philippinarum ... See more keywords
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Facile fabrication of hollow biochar carbon-doped TiO2/CuO composites for the photocatalytic degradation of ammonia nitrogen from aqueous solution

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Published in 2019 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2018.08.207

Abstract: Abstract Ammonia nitrogen contaminated wastewater poses a great threat on the safety of water resources. In this work, a series of hollow tubular structure TiO2/hemp stem biochar carbon (HSC) and TiO2-CuO/HSC were successfully fabricated under… read more here.

Keywords: hsc; ammonia; degradation; tio2 cuo ... See more keywords
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UV photoelectrochemical process for the synergistic degradation of total ammonia nitrogen (TAN)

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Published in 2021 at "Journal of Cleaner Production"

DOI: 10.1016/j.jclepro.2020.125645

Abstract: Abstract With increasing environmental concerns, total ammonia nitrogen (TAN) removal from water ecosystems has gained much attention. Photoelectrochemical process is considered to be an environmental-friendly technology for water purification. Meanwhile, ultraviolet light-emitting diodes (UV-LEDs) and… read more here.

Keywords: degradation; photoelectrochemical process; ammonia nitrogen; process ... See more keywords
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Low-temperature conversion of ammonia to nitrogen in water with ozone over composite metal oxide catalyst.

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Published in 2018 at "Journal of environmental sciences"

DOI: 10.1016/j.jes.2017.04.032

Abstract: As one of the most important water pollutants, ammonia nitrogen emissions have increased year by year, which has attracted people's attention. Catalytic ozonation technology, which involves production of ·OH radical with strong oxidation ability, is… read more here.

Keywords: nitrogen; water; ozonation; metal oxide ... See more keywords