Nitrogen removal intensification of aerobic granular sludge through bioaugmentation with “heterotrophic nitrification-aerobic denitrification” consortium during petroleum wastewater treatment

Bioresource Technology(2022)

Cited 10|Views4
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Abstract
•An efficient HN-AD consortium was established for the bioaugmentation of AGS.•TN and COD removal with AGS immobilized consortium was found more effective.•The addition of an immobilized consortium facilitated larger AGS formation.•napA gene showed long-term stability of HN-AD consortium in AGS.•Conventional denitrifying bacteria and HN-AD bacteria could function together.
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Key words
Aerobic granular sludge,Bioaugmentation,Heterotrophic nitrification-aerobic denitrification,Nitrogen removal,Petroleum wastewater
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