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QG21W : For Biological Wastewater Treatment
How and Where is this Test Kit Used?
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QuenchGone21 Wastewater (QG21W) is the key to a new level of control in biological wastewater treatment plant operation! QG21W provides the ability to measure the active biomass population (cATP), stress levels (BSI), and suspended solids activity (ABR). By isolating the living population and eliminating all interferences, the operator can maximize efficiency and stability in any treatment process to prevent upsets, manage toxicity, streamlines operations, and save money! Use QG21W in high-solids applications such as:
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Aerobic Reactors
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Anaerobic Reactors
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Activated Sludge
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Raw Wastewater
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Biosolids or Soil
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Treated Effluent
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This kit can also be used in the following applications and industries:
QG21W uses two parallel 1-minute analyses on each sample to determine the health and activity of the active biomass population in a cooling water sample. QG21W test protocols provide three pieces of valuable information:
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Cellular ATP (cATP™) – represents ATP from living microorganisms, and therefore is a direct indication of the living population. Once target thresholds for cATP are established, cATP results can be used to manage biocide treatments.
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Biomass Stress Index (BSI™) – represents the stress level experienced by the microbiological population. This quantity is very useful in monitoring biocide treatment efficacy.
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Active Biomass Ratio (ABR™) – represents the percentage of bioreactor solids that are active microorganisms. Maximizing the ABR provides many benefits such as enhanced sludge quality and improved settling.
QuenchGone21 Wastewater is capable of measuring down to 0.22ng ATP/mL, which is roughly equivalent to 0.11mg/L of active biological solids. Over time, routinely collected ATP data using the QG21W kit will indicate the required size and health of the population required to efficiently treat biodegradable waste.
Since QG21W shows the effects of process changes on the biomass as they happen, it not only provides the ability to adjust process variables to optimum conditions accordingly, but it also warns of impending process upset due to toxicity.
This makes QG21W the perfect operations monitoring tool for continuous improvement!
| Included in QG21–W Kits |
Storage Temp. |
Shelf Life |
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LuminaseW
Luciferase Enzyme Reagent
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4°C |
3 mo. |
UltraCheck 1
1 ng/mL ATP Standard |
20°C |
6 mo. |
UltraLyse 3021
Extraction Tubes |
20°C |
12 mo. |
UltraLute
Dilution Tubes |
20°C |
12 mo. |
LumiSolve
LumiSolve Tubes |
20°C |
12 mo. |
| 100-1000µL Pipette Tips |
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| 12x 55mm Culture Tubes |
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Using ATP to Measure Living Biomass in Wastewater Bioreactors
Because they are the engine that drives biological wastewater treatment, it is critical to closely monitor the quantity and quality of microorganisms in bioreactors. Learn how ATP measurements give a more accurate biomass indicator than conventional measurements.
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Using ATP Measurements to Perform Wastewater Process Audits
Much can be learned in a short time by utilizing ATP measurements to audit wastewater treatment processes. Learn how ATP measurements were applied to uncover certain characteristics at an Eastern Canadian pulp and paper manufacturer’s effluent treatment process.
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Using ATP Measurements to Troubleshoot Bioreactor Stress Mechanisms
Bioreactor upsets are often preceded by conditions that cause biomass stress. Oftentimes, these stress mechanisms are complicated and difficult to interpret. Learn how ATP measurements provide the missing link in determining the mechanisms behind stress and offer the ability to reduce or eliminate future occurrences.
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Early Warning of Upsets and Toxicity in Wastewater Treatment
Using routine ATP testing to monitor toxicity at the front end of a wastewater treatment process can provide the early warning necessary to prevent process upsets. This study provides examples where customers were able to link bioreactor stress and its resulting downstream effects to influent toxicity.
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Using the Biomass Growth Index to Assess Wastewater Source Quality
Most wastewater treatment bioreactors accept wastewater from a multitude of sources whose quality can vary over time. The Biomass Growth Index is a useful bench-scale procedure for assessing source quality in a short period time through harnessing the abilities of accurate ATP measurements.
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QG21-W Product Fact Sheet
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English
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Français
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QG21-W Quick Reference Guide
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English
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Français
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View Training Material
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Kit Selection Guide 
