Skip to Main Content
LuminUltra
EnglishFrançais简体中文

3 Things That You Can Learn With ATP Testing at Your Wastewater Plant

Of all the applications that LuminUltra works with, biological wastewater may be the most complex but also offers the greatest opportunities for cost savings and overall optimization. The greatest savings tend to come through process optimization once long-term data trends have been established but the following is a list of opportunities that present themselves immediately upon starting to generate data at a treatment plant:

1. Assess solids viability via the Active Biomass Ratio (ABR)

By conducting an ATP test on a bioreactor sample and converting the result from ng cATP/mL to mg Active Biomass/mL, it can then be directly compared to the Total Suspended Solids (TSS) for the same sample to determine the Active Biomass Ratio, ABR (%). Typically, this value ranges from 15-40% for most processes so the plant can immediately be benchmarked to determine how much of an opportunity there may be to improve this. The benefits of operating at a high ABR are many:

  • Enhanced mass transfer efficiency resulting in more effective uptake of soluble BOD, nutrients, and dissolved oxygen.
  • Better quality floc resulting in more effective settling
  • Reduced solids handling costs due to the lack of excess solids inventory.

2. Investigate treatability of individual influent streams

Simple benchtop experiments can be conducted to assess the toxicity of individual influent streams by combining samples from these sources with mixed liquor and then comparing ATP results at the beginning and again after 1 hour of gentle mixing. ATP results that stay constant or increase indicate a benign stream while a decrease in ATP indicates toxicity. The degree of drop indicates the severity of the toxicity. Additional tests can be done over longer time intervals to investigate delayed impact as well as the population’s capability to recover.

3. Compare load balancing across multiple trains and throughout large bioreactors or digesters

For treatment plants with multiple parallel trains, samples can be drawn and analyzed from each train to assess consistency between them and possibly reveal situations where different growth patterns emerge. In situations like this, the root cause of the differences can be quickly assessed and mitigated to maximize performance.

As insightful as these exercises can be, they are just the beginning. Stay tuned for a future blog focusing on long-term benefits of ATP monitoring in a wastewater treatment plant once baseline data has been established.

 


Dave Tracey

Dave has been with LuminUltra since Day 1 and is proud to have been able to contribute from its early days as a small start-up to the company that it is today. He has served in a wide range of roles during that time, from producing reagent and conducting laboratory experiments through to his current position. Nothing is more important to Dave than family, whether it’s his two young sons or his fellow Sales & Marketing teammates. In both cases, he’s well aware that he wouldn’t be much without them. Originally a graduate of the Chemical Engineering program at the University of New Brunswick, his alma mater has come full circle 14 years later with Dave now serving as a mentor for final year ChE students during their senior plant design projects.

Related Posts

wastewater treatment

LuminUltra Files Patent for the World’s First Rapid, On-site COVID-19 Wastewater Testing Solution

A Research Collaboration Between LuminUltra, Dalhousie University and Halifax Water Demonstrates Wastewater Data Is a Powerful Tool in Early Detection and Tracking COVID-19 Prevalence within Communities FREDERICTON, NB, October 21, 2020 – LuminUltra, a Canada-based biotechnology leader and portfolio company of XPV Water Partners, recently filed a patent for the first complete, rapid, and on-site… Read More

Sequencing Your Bioreactor – Who’s Doing the Work?

  Metagenomics through the incorporation of next generation sequencing (NGS) is changing the way wastewater treatment plants are monitored and understood. NGS can be used in aerobic and anaerobic systems to monitor for problematic organisms, such as filamentous and foaming bacteria, and beneficial organisms, such as ammonia-oxidizing bacteria and methanogens. NGS is also allowing old… Read More

[Video] Microbiological Monitoring in Water: Past, Present & Future

  The first ever Microbe Detective’s Microbiome Water Summit was held in Chicago at the Shedd Aquarium on September 29, 2017. It was held to coincide with the Water Environment Federation’s annual WEFTEC conference and exhibition (September 30-October 4, 2017). The Summit was well attended by a mix of consultants, technology providers, academics, utilities and… Read More

Your browser is out of date!

Update your browser to view this website correctly. Update my browser now