Future directions in microbial nitrogen cycling in wastewater treatment

DR Shaw, A Terada, PE Saikaly - Current Opinion in Biotechnology, 2024 - Elsevier
Highlights•Nitrogen cycle advances drive sustainable wastewater treatment innovation.•
Comammox microaerophilic nature allows energy-efficient complete nitrogen …

Microbial community assembly in engineered bioreactors

SK Smith, JE Weaver, JJ Ducoste - Water Research, 2024 - Elsevier
Microbial community assembly (MCA) processes that shape microbial communities in
environments are being used to analyze engineered bioreactors such as activated sludge …

Optimized start-up strategies for elemental sulfur packing bioreactor achieving effective autotrophic denitrification

YL Sun, JZ Zhang, HH Ngo, CY Shao, W Wei… - Science of The Total …, 2024 - Elsevier
The start-up efficiency of the elemental sulfur packing bioreactor (S 0 PB) is constrained by
the slow growth kinetics of autotrophic microorganisms, which is essentially optimized. This …

Competitive bio-augmentation overcoming unusual direct inhibitor inefficacy in mainstream nitrite-oxidizing bacteria suppression: Unveiling the underpinnings in …

Y Wei, M Ye, Y Chen, YY Li - Science of the Total Environment, 2024 - Elsevier
The long-stabilized mainstream partial nitritation/Anammox (PN/A) process continues to
encounter significant challenges from nitrite-oxidizing bacteria (NOB). Therefore, this study …

Biotrickling Filtration for the Reduction of N2O Emitted during Wastewater Treatment: Results from a Long-Term In Situ Pilot-Scale Testing

H Han, DD Kim, MJ Song, T Yun, H Yoon… - Environmental …, 2023 - ACS Publications
Wastewater treatment plants (WWTPs) are a major source of N2O, a potent greenhouse gas
with 300 times higher global warming potential than CO2. Several approaches have been …

Natural flocculant chitosan inhibits short-chain fatty acid production in anaerobic fermentation of waste activated sludge

L Zhao, Y Fan, H Chen - Bioresource Technology, 2024 - Elsevier
Chitosan (CTS) serves as an excellent natural flocculant in wastewater purification and
sludge conditioning, but its potential impact on anaerobic fermentation of waste-activated …

Direct and indirect monitoring methods for nitrous oxide emissions in full-scale wastewater treatment plants: A critical review

Z Shang, C Cai, Y Guo, X Huang, K Peng, R Guo… - Journal of …, 2024 - Elsevier
Mitigation of nitrous oxide (N 2 O) emissions in full-scale wastewater treatment plant
(WWTP) has become an irreversible trend to adapt the climate change. Monitoring of N 2 O …

Highlighting nitrification disturbances in waters with high levels of nitrogen salts

M Poser, P Peu, A Couvert, E Dumont - Chemical Engineering Journal, 2024 - Elsevier
Nitrification in extreme conditions was studied in a gas/liquid bioreactor treating gaseous
ammonia (NH 3) emissions. As autotrophic bacteria can use simple inorganic compounds to …

Effects of aeration control strategies on nitrous oxide emissions in alternating anoxic–oxic sequencing batch reactor systems

X Ma, W Yang, H Zhao, Q Tan - Environmental Research, 2024 - Elsevier
Reducing N 2 O emissions is key to controlling greenhouse gases (GHG) in wastewater
treatment plants (WWTPs). Although studies have examined the effects of dissolved oxygen …

Exploring data quality and seasonal variations of N2O in wastewater treatment: a modeling perspective

LD Hansen, PA Stentoft, D Ortiz-Arroyo… - Water Practice & …, 2024 - iwaponline.com
In this work, operational data collected from four Danish wastewater treatment plants
(WWTP) are assessed for quality issues and analyzed to investigate the feasibility of data …