Achieving intensified nitrogen removal and vivianite recovery from sludge digester liquor in two-stage partial nitrification-electrolysis anammox system
CHEMICAL ENGINEERING JOURNAL(2023)
Abstract
•A novel partial nitrification-electrolysis anammox process was established.•Vivianite recovery from sludge digester liquor was achieved.•Stable P removal (96.58 ± 1.41%) was obtained by equipping a current control system.•Multiple denitrification pathways and anammox contributed to the NRE of 92.60%.
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Key words
Anammox,Vivianite,Sludge digester liquor,Phosphorus recovery,Electrolysis
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