A5089638659- Wastewater Treatment and Nitrogen Removal
- Microbial Fuel Cells and Bioremediation
- Constructed Wetlands for Wastewater Treatment
- Ammonia Synthesis and Nitrogen Reduction
- Water-Energy-Food Nexus Studies
- Membrane Separation Technologies
- Tracheal and airway disorders
- Semiconductor materials and devices
- Phosphorus and nutrient management
- Chromium effects and bioremediation
- Fuel Cells and Related Materials
- Water Treatment and Disinfection
- Machine Learning in Materials Science
- Pancreatic and Hepatic Oncology Research
- Medical Imaging and Pathology Studies
- Infrastructure Maintenance and Monitoring
Cornell University
2022-2024
Hampton Roads Sanitation District
2022-2024
Université Laval
2022-2024
Hollister (United States)
2023
This study evaluated startup strategies for mainstream polishing anammox moving bed biofilm reactors (MBBRs) without bacterial (AMX) biomass inoculation. Two types of startups were tested: only (no external carbon addition) and partial denitrification/anammox (PdNA) with glycerol addition. Reactors started either virgin carriers or a preliminary from aerobic integrated fixed-film activated sludge (IFAS) process. Three pilot-scale completed under the following conditions: anammox-only...
Shortcut nitrogen removal (SNR) reduces aeration, carbon, and alkalinity requirements, but the magnitude of this benefit is often overstated. SNR allows for upstream carbon diversion anammox processes allow significant WRRF capacity gains.
The integration of biological phosphorus removal (bio-P) and shortcut nitrogen (SNR) processes is challenging because the conflicting demands on influent carbon: SNR allows for upstream carbon diversion, but this reduction (especially volatile fatty acids [VFAs]) prevents or limits bio-P. objective study was to achieve SNR, either via partial nitritation/anammox (PNA) denitrification/anammox (PdNA), simultaneously with in a process capture. This took place pilot scale A/B sidestream bio-P...
This work gives an overview of the state-of-the-art in modelling short-cut processes for nitrogen removal mainstream wastewater treatment and presents future perspectives directing research efforts line with needs practice. The status deammonification (i.e., anammox-based) nitrite-shunt is presented its challenges limitations. importance mathematical models considering N2O emissions design operation considered as well. Modelling goals potential benefits are new more advanced approaches...
Abstract Achieving mainstream short-cut nitrogen removal via nitrite has been a carbon and energy-efficient goal which wastewater engineers are dedicated to explore. This study applied novel pilot-scale A-B-S2EBPR system process integrated with sidestream enhanced biological phosphorus removal) achieve the accumulation downstream anammox for treating municipal wastewater. Nitrite accumulated 5.5 ± 0.3 mg N/L in intermittently aerated tanks of B-stage ratio (NAR) 79.1 6.5%. The final effluent...
To meet the growing interest in development of innovative biological nutrient removal (BNR) alternatives for energy neutrality, resource recovery, and decarbonization, adsorption/bio-oxidation (A/B) process has been widely studied carbon capture shortcut nitrogen (N) removal, while limited research focused on incorporating enhanced phosphorus (P) (EBPR), mainly due to differential usage characteristics functionally relevant microorganisms. Here, a full-scale pilot testing with an integrated...
Abstract The integration of biological phosphorus removal (bio-P) and shortcut nitrogen (SNR) processes is challenging because the conflicting demands on influent carbon: SNR allows for upstream carbon diversion but this reduction (especially volatile fatty acids (VFA) prevents or limits bio-P objective study was to achieve SNR, either via partial nitritation/anammox (PNA) denitrification/anammox (PdNA), simultaneously with in a process capture. This took place pilot scale A/B sidestream...
Abstract Side-stream Enhanced biological phosphorus removal (S2EBPR) has been incorporated with B-stage process to enable simultaneous and nitrogen removal. However, the dominating accumulating organisms (PAOs) in this novel configuration not evaluated. The dominance of Acinetobacter was confirmed by 16S sequencing. In addition, single cell Raman spectrum (SCRS) analysis couple situ fluorescence hybridization (FISH) applied obtain feature verify release/uptake activity spp. phenotypic...
Abstract A novel integrated pilot-scale A-stage high rate activated sludge, B-stage short-cut biological nitrogen removal and side-stream enhanced phosphorus (A/B-shortcut N- S2EBPR) process for treating municipal wastewater was demonstrated with the aim to achieve simultaneous carbon- energy-efficient N P removal. In this studied period, an average of 7.62 ± 2.17 mg-N/L nitrite accumulation achieved through atypical partial nitrification without canonical known NOB out-selection. Network...