AMX™ - Anammox
Tomorrow Water’s patented AMX™ process is a next-generation nitrogen removal technology. AMX™ slashes nitrification energy use by two-thirds while eliminating the need for chemical carbon sources for denitrification. Additionally, a 90% less biomass yield can be achieved by anammox, making this process an energy and cost-effective alternative for conventional nitrogen removal. Tomorrow Water is pioneering new shortcuts in ammonia removal and is applying AMX™ to municipal sidestreams, mainstreams, livestock wastewater, food processing wastewater, landfill leachate, and industrial wastewater.
-Reduce O&M cost
Reduce energy cost for aeration with 60% lower oxygen consumption
-Requires no external carbon
Decrease cost of chemicals required
Enhance biogas production via carbon diversion
-Produce 90% less biomass
Minimize hauling costs for sludge
Improve sludge treatment capacity
Reduce backwash water usage by bio-filter system
-Generates Zero Carbon Emission
Does not produce CO₂
Potential to earn Carbon Credits
1. Unique Anammox Bacteria
Tomorrow Water’s unique Anammox Solution: Candidatus “Brocadia sinica” JPN1
This strain is considered to be one of the best anammox strains because it demonstrates excellent growth rates in both high and low substrate conditions, and maintains its activity even at high salt concentrations. It achieves 2x higher growth rates and has higher salinity resistance (up to 3%) compared to other strains.
2. Resilient & reliable 2-stage process
The AMX™ two-stage system provides maximum process control by isolating nitritation and AMX™ populations
Unlike most anammox technologies with a single reactor, we have developed a two-stage system that separates the nitration tank from the anammox tank. Separate tanks are beneficial for securing two different microorganisms - aerobic ammonium oxidizing bacteria (AOBs) and anaerobic ammonium oxidizing bacteria (AnAOBs). Separate enrichment of AOBs and AnAOBs in a two-stage system enables sustained high nitrogen removal even under fluctuating influent loading conditions.
Moreover, the two-stage AMX™ is able to quickly recover from shocks through independent reseeding o either AOBs or AnAOBs, whereas in a single reactor, both communities must be recovered concurrently, which can take a lot longer. Tomorrow Water was also able to shrink the footprint by developing an air-lifted granule reactor (AGR), which fosters a faster reaction rate and settling speed for ammonia oxidizing bacteria (AOB) granulation for super-efficient footprints.
3. Applications to various industries
Tomorrow Water has been expanding our AMX™ portfolio into applications such as municipal sidestream and mainstream, livestock digestation, industrial processes, and landfill leachate.
4. Innovating with AMX for Tomorrow
Tomorrow Water has been pushing the boundaries and finding new ways to use AMX along with other technologies to increase functionality.
Using CRISPR to establish transgenic derivatives of Anammox bacteria
Low temperatures in mainstream treatment has presented challenges for AMX™, as temperatures are generally below 20°C and inhibits AMX™ activity. Using genome editing technology (CRISPR), Tomorrow Water has been conducting innovative research to enhance temperature resistance in our AMX™ culture.
Specific cytotoxicity of comammox bacteria (complete ammonia oxidizers that harm AOBs and AnAOBs via full nitrification) using CRISPR enzyme treatments could selectively wash unwanted competitors out of the process.
We believe our work with gene editing technology is one of the first in the environmental technology field.
Membrane-biofilm Reactor (MBfR)
Tomorrow Water is developing a single-stage Membrane-biofilm Reactor system (MBfR), using hollow fiber membranes for aeration to maximize oxygen transfer. The efficiency of the single-stage MBfR significantly reduces energy costs, while simultaneously enriching both AOBs and AnAOBs.
AMX + BBF Biofiltration for Mainstream Treatment
In mainstream treatment, removing organic carbon prior to the AMX™ process is important in order to control heterotrophic growth, since heterotrophic denitrifiers would easily outgrow anammox bacteria under excessive carbon conditions. But aerobic organics removal prior to AMX™ requires lots of energy, and wastes valuable carbon which can be recovered. To conserve more energy, intensifying carbon redirection at primary treatment has become essential to recovering energy while also protecting mainstream AMX™ from the heterotrophs outgrowth. To this end, we have developed a high-rate primary treatment process using Tomorrow Water’s BBF Biofilitration System. BBF has been registered in WERF’s Lift Program for it’s carbon redirection functionality.