Constructed wetlands for rural domestic wastewater treatment: A coupling of tidal strategy, in-situ bio-regeneration of zeolite and Fe(Ⅱ)-oxygen denitrification
Bioresource Technology(2022)
Abstract
•The zeolite has a strong biological regeneration ability.•Pyrite-inspired Fe(II) oxidation denitrification enhanced TN removal.•The half drained strategy achieved 78.36%±5.3% TN removal rate at F/D = 4 h:2h.•The coupling of zeolite-enhanced nitrification and pyrite-enhanced denitrification achieved SND.
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Key words
Tidal flow,Zeolite,Pyrite,Mechanism of the nitrogen removal
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