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Summary

Biological disturbances in wastewater treatment plants often lead to exceedances of discharge limits and high costs. Conventional parameters such as MLSS measure the amount of biomass, but not its activity. The 2nd Generation ATP technology enables rapid, direct determination of living and active biomass. The Biomass Stress Index (BSI) and Active Biomass Ratio (ABR) are derived from the separate measurement of cellular and dissolved adenosine triphosphate (ATP). The BSI acts as an early warning indicator for microbial stress and allows real-time monitoring of biological processes. This enables toxic loads to be detected at an early stage and improves process stability and energy efficiency. In combination with VIT® gene probe technology, this creates a powerful system for controlling microbiology – a central component of the intelligent wastewater treatment plant of the future.

 

Publication language: German

Quote

Dr. Jiri Snaidr (2025): Biomass Stress Index for Digital Active Monitoring of Biological Wastewater Treatment. In: gwf Wasser + Abwasser, No. 11, November 2025. Publisher: Vulkan-Verlag GmbH