Optimization of the carbon to nitrogen ratio for mainstream deammonification and the resulting shift in nitrification from biofilm to suspension

Paul Roots, Alex F. Rosenthal, Quan Yuan, Yubo Wang, Fenghua Yang, Joseph A. Kozak, Heng Zhang and George F. Wells

Environ. Sci.: Water Res. Technol., 2020, 6, 3415
DOI: 10.1039/D0EW00652A

Post aerobic digestion (PAD) is a solids sidestream nutrient removal process that utilizes native carbon: performance and key operational parameters from two full-scale PAD reactors

Patrick McNamara, Fabrizio Sabba, Eric Redmond, Patrick Dunlap, Thomas Worley-Morse, Christopher Marks and Leon Downing

Environ. Sci.: Adv., 2022, 1, 216
DOI: 10.1039/D2VA00045H

Sewage water treatment with energy recovery using constructed wetlands integrated with a bioelectrochemical system

Manoj Kumar and Rajesh Singh

Environ. Sci.: Water Res. Technol., 2020, 6, 795
DOI: 10.1039/C9EW00867E

Bifurcation Analysis of an Impulsive System Describing Partial Nitritation and Anammox in a Hybrid Reactor

Matthew J. Wade and Gail S. K. Wolkowicz

Environ. Sci. Technol., 2021, 55, 2099
DOI: 10.1021/acs.est.0c06275

The Enhancement of Energy Efficiency in a Wastewater Treatment Plant through Sustainable Biogas Use: Case Study from Poland

Adam Masłoń, Joanna Czarnota, Aleksandra Szaja, Joanna Szulżyk-Cieplak and Grzegorz Łagód

Energies, 2020, 13, 6056
DOI: 10.3390/en13226056

Increasing resource circularity in wastewater treatment: Environmental implications of technological upgrades

Martí Rufí-Salís, Anna Petit-Boix, Sina Leipold, Gara Villalba, Joan Rieradevall, Eduard Moliné, Xavier Gabarrell, Julián Carrera and María Eugenia Suárez-Ojeda

Science of The Total Environment, 2022, 838, 156422
DOI: 10.1016/j.scitotenv.2022.156422

The Influence of COD Fraction Forms and Molecules Size on Hydrolysis Process Developed by Comparative OUR Studies in Activated Sludge Modelling

Jakub Drewnowski, Bartosz Szeląg, Li Xie, Xi Lu, Mahesh Ganesapillai, Chinmoy Kanti Deb, Joanna Szulżyk-Cieplak and Grzegorz Łagód

Molecules, 2020, 25, 929
DOI: 10.3390/molecules25040929

Partial Nitritation/Anammox and biological phosphorus removal integration in a single bioreactor under mainstream conditions

Zhen Jia, Quan Yuan, Paul Roots, Fabrizio Sabba, Alex F. Rosenthal, Joseph A. Kozak and George F. Wells

Bioresource Technology, 2023, 373, 128714
DOI: 10.1016/j.biortech.2023.128714

Simultaneous nitrification–denitrification in biofilm systems for wastewater treatment: Key factors, potential routes, and engineered applications

Francesco Di Capua, Francesca Iannacone, Fabrizio Sabba and Giovanni Esposito

Bioresource Technology, 2022, 361, 127702
DOI: 10.1016/j.biortech.2022.127702

Enhanced total nitrogen removal and membrane fouling control by increasing biomass in MBR equipped with ceramic membrane

Shan-shan Gao, Xing Yin, Rui Huang and Jia-yu Tian

Water Science and Engineering, 2024, 17, 352
DOI: 10.1016/j.wse.2024.01.001

Toward a circular nitrogen bioeconomy: integrating nitrogen bioconcentration, separations, and high-value products for nitrogen recovery

Edward Apraku, McKenna Farmer, Chayse Lavallais, Danna A Soriano, Justin Notestein, Keith Tyo, Jennifer Dunn, William A Tarpeh and George F Wells

Current Opinion in Biotechnology, 2025, 91, 103225
DOI: 10.1016/j.copbio.2024.103225

Analysis of the Effect of the Use of Food Waste Disposers on Wastewater Treatment Plant and Greenhouse Gas Emission Characteristics

Dowan Kim and Chaegun Phae

Water, 2023, 15, 940
DOI: 10.3390/w15050940

Enhancement of simultaneous nitrogen and phosphorus removal using intermittent aeration mechanism

Parnian Izadi, Parin Izadi and Ahmed Eldyasti

Journal of Environmental Sciences, 2021, 109, 1
DOI: 10.1016/j.jes.2021.02.026

Impact of nitrite and oxygen on nitrous oxide emissions from a granular sludge sequencing batch reactor

Shannon K. Cavanaugh, Bao Nguyen Quoc, Eron Jacobson, Robert Bucher, Pardi Sukapanpotharam and Mari-Karoliina H. Winkler

Chemosphere, 2022, 308, 136378
DOI: 10.1016/j.chemosphere.2022.136378

Inorganic carbon limitation during nitrogen conversions in sponge-bed trickling filters for mainstream treatment of anaerobic effluent

T. Bressani-Ribeiro, P.G.S. Almeida, C.A.L. Chernicharo and E.I.P. Volcke

Water Research, 2021, 201, 117337
DOI: 10.1016/j.watres.2021.117337

Simultaneous partial nitrification and denitrifying phosphorus removal (PNDPR) in a sequencing batch reactor process operated at low DO and high SRT for carbon and energy reduction

Masuduz Zaman, MinGu Kim and George Nakhla

Chemical Engineering Journal, 2021, 425, 131881
DOI: 10.1016/j.cej.2021.131881

Development and long-term operation of aerobic granular system for simultaneous removal of COD, nitrogen, and phosphorous in a conical SBR

Swathi Desireddy, Sneha Madhavan and Sabumon P. C.

Environmental Engineering Research, 2022, 28, 220015
DOI: 10.4491/eer.2022.015

Partial nitritation with aerobic duration control of carbon-captured blackwater: Process operation and model-based evaluation

Haixin Jiang, Yexuan Wen, Qi Wang, Yi He, Xiaohu Dai and Hongbin Chen

Chemical Engineering Journal, 2020, 401, 126060
DOI: 10.1016/j.cej.2020.126060

Lab‐scale data and microbial community structure suggest shortcut nitrogen removal as the predominant nitrogen removal mechanism in post‐aerobic digestion (PAD)

Fabrizio Sabba, Patrick McNamara, Eric Redmond, Caitlin Ruff, Mike Young and Leon Downing

Water Environment Research, 2022, 94
DOI: 10.1002/wer.10762

Unlocking the potential of sidestream EBPR: exploring the coexistence of PAO, GAO and DGAO for effective phosphorus and nitrogen removal

Fabrizio Sabba, McKenna Farmer, Patrick Dunlap, Cindy Qin, Joseph Kozak, James Barnard, George Wells and Leon Downing

Water Science & Technology, 2025, 91, 469
DOI: 10.2166/wst.2025.038

Anammox-Based Processes for Mature Leachate Treatment in SBR: A Modelling Study

Anna Lanzetta, Davide Mattioli, Francesco Di Capua, Gianpaolo Sabia, Luigi Petta, Giovanni Esposito, Gianni Andreottola, Giovanni Gatti, Willy Merz and Michela Langone

Processes, 2021, 9, 1443
DOI: 10.3390/pr9081443

Mathematical modelling of an intermittent anoxic/aerobic MBBR: Estimation of nitrification rates and energy savings

D. Montecchio, M.R. Mattei, G. Esposito, G. Andreottola and R. Ferrentino

Journal of Environmental Management, 2022, 321, 116026
DOI: 10.1016/j.jenvman.2022.116026