Recent advances in controlling denitritation for achieving denitratation/anammox in mainstream wastewater treatment plants. (March 2020)

• Record Type: Journal Article
• Authors: Ma, Bin; Xu, Xinxin; Wei, Yan; Ge, Chengjun; Peng, Yongzhen
• Is Part Of: Bioresource technology. Volume 299(2020)
• Publication Date: 2020-03
• Subjects: Denitratation -- Anammox -- Denitritation -- Nitrogen removal -- Mainstream wastewater treatment plants (WWTPs); Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2019.122697
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Denitratation/anammox is a promising method for anammox application in WWTPs. Denitritation is affected by biocommunity, pH and organic matter. Strategies for controlling denitritation are discussed. Processes for achieving denitratation/anammox in mainstream WWTPs are proposed. A denitratation/anammox application in a full-scale WWTP is documented. Abstract: Denitratation (NO3 − →NO2 − )/anammox is a promising method for anammox application in mainstream wastewater treatment plants (WWTPs) to reduce oxygen and organic matter consumption. Achieving nitrite production via denitratation and controlling denitritation (NO2 − →N2 ) is the basis of the denitratation/anammox process. To control denitritation, the denitrifying biocommunity and growth rate are critically reviewed for biocommunity optimization. Then, the short-term and long-term effects of pH on denitritation were summarized and the possible mechanism was discussed, along with the effect of C/N ratio and organic matter type on denitritation. Meanwhile, the strategies for producing nitrite via controlling denitritation are discussed, as well as the processes for achieving nitrogen removal via denitratation/anammox in WWTPs. Finally, the practical application of denitratation/anammox in a full-scale mainstream WWTP is documented.