AND INCREASE YOUR PRODUCTIVITY
WITH ATP 2G!
European regulations (Water Framework Directive, Masterplan for Water Development and Management; Directive Cadre sur l’Eau, Schéma Directeur d’Aménagement et de Gestions des Eaux) require that urban and industrial users of purification systems (stations d’épuration, STEP) find technical solutions for conserving water and minimizing production of polluted waste. Biological treatment of used water using micro-organisms therefore represents an important approach from a technical, economic and ecological point of view. However, the effectiveness and stability of current methods (activated sludges, lagoons, bio-filters, membrane bioreactors, etc.) depend entirely on the physiological and metabolic state of the biomass used in the biodegradation reactions. Learn more
Maintaining the purifying activity of these microbial populations is a daily challenge. The biomass can be altered, inhibited or destabilized by poor quality or toxic effluents:
• the presence of chemical pollutants (heavy metals, xenobiotics), organic pollutants (nitrates, phosphates) or inhibitors (salts, acids, etc.);
• unbalanced organic content (carbon, nitrogen, phosphorous, etc.);
• invasion by harmful micro-organisms (e.g. filamentous bacteria).
Micro-organismal stress or reduced microbial metabolism translates into decreased performance that can dramatically increase the treatment times needed to comply with quality standards (DBO5, DCO, MES, NTK).
Rapid microbiological analysis by ATPmetry provides the user with a reliable biological indicator that quickly and precisely quantifies the active biomass. Simple tracking of physio-chemical parameters is often insufficient to detect incipient biological shifts. Corrective measures are more effective if losses in activity or biomass are identified early. ATP 2G enables users to stay one step ahead!
ATP 2G provides a clear advantage over traditional analyses used for purification systems because the technology directly targets micro-organisms and not their physio-chemical environment.
The results are obtained quickly and directly on site. Any biological shift within the system can be identified very quickly, enhancing responsiveness in decision-making and the effectiveness of any corrective measures undertaken. With ATP 2G, users can take control of their purification systems and optimize management and maintenance procedures.
Rapid microbiological analysis by ATP 2G provides a relevant biological indicator that allows the user to:
• quantify the concentration of the active biomass at all points throughout the facility (sedimentation tanks, aeration basins, bio-filters, clarifiers, conduits, etc.). To improve monitoring of the quality of activated sludges and used water in purification systems, we recommend generating a microbiological map.
• continuously survey the biological quality of water entering or leaving the purification plant, in order to detect any potential biological shift;
• guide biodegradation processes by monitoring biological activity and cell death in activated sludges, biofilters and bioreactors using the BSITM and ABRTM activity parameters (see more below);
• validate and optimize linked processes: aeration, sludge removal, clarification, seeding, etc.;
• validate and optimize treatments (chemical, biological or ecological) used to eradicate harmful microbial populations (selective biocidal agents) or activate desirable populations (bio-additives).
The Biomass Stress Index™ is determined using samples of used water, activated sludges or bio-solids from purification systems. This numeric indicator (expressed as a %), which represents the ratio of extracellular ATP to total ATP, is an indication of mortality and stress in free or fixed cultures. The higher the BSI value, the higher the level of cell death and/or stress. Learn more
The Active Biomass Ratio™ is determined using samples of bio-solids (from biofilters) or sediment (from activated sludge) from purification systems. This numeric indicator (expressed as a %) represents the relationship between the extracellular ATP concentration and the concentration of MES (Matières en Suspension; TSS – Total Suspended Solids). This numeric parameter enables the operator to track the biological activity of fixed cultures in real-time. A high ABR value indicates highly effective bio-purification of used water.
Rapid microbiological analysis by ATP 2G is an efficient, low-cost surveillance tool that is easy to implement in the field and allows purification system users to track a variety of parameters in real time, including:
• the effect of aeration on the development of the active biomass. Quantifying changes in the microbial population during aeration can help reduce energy costs by optimizing the oxygen level required (length of aeration, evaluation of the performance of alternative procedures);
• the development of a biomass seeded by bio-additives (bio-activators), to facilitate balancing the microbial population in a tank or to increase its purifying activity. Tracking changes in a seeded biomass can help determine the optimal dose;
• the total filamentous biomass, to prevent these bacteria from proliferating in aeration tanks. Overgrowth of filamentous bacteria (Microthrix sp., Thiotrix sp., Beggiatoa sp.) can create problems with decanting or foaming that lead to sludge being discarded with the discharged water. Quantitative analysis of ATP from filamentous bacteria (fb-ATP) can detect contamination with filamentous bacteria approximately two weeks before the Sludge Volume Index (Mohlmann’s index);
• the quality and toxicity of used water before it is introduced to the purification system, to determine how well it can be biodegraded and the volume of harmful effluents that can be treated with no risk. A large influx of toxic material or a significant change in the composition of the effluent entering the system can inhibit or even destroy a purifying biomass. This type of irreversible damage can have serious repercussions both economically (decontamination, getting the system back on line) and ecologically (pollution). To evaluate the potential impact of an effluent on the biomass before introducing it to the purification plant, a jar-test can be performed using samples from the system, and the Active Biomass Ratio™ and the Biomass Stress Index™ can be calculated for these samples. These parameters can help distinguish between a toxicity problem (high BSI, low ABR) caused by a harmful chemical and a decrease in quality (low BSI, high ABR) due to a nutritional imbalance or sudden changes in the culture conditions (temperature, pH, oxygen, salt, etc.).
• Measuring the total biomass of used, treated or clarified water in urban or industrial purification systems;
• Measuring the active biomass of activated sludges, bio-filters and bioreactors;
• Measuring the biomass of filamentous contaminants in purification systems (fb-ATP analysis) and determining the proportion of the total biomass that they represent.
• Continuous surveillance of the microbiological quality of water entering the system, undergoing treatment, or being discharged, creating a microbiological map of the system if necessary;
• Guiding biodegradation processed used in purification systems; ;
• Bio-purification of used water by activated sludges, lagoons, bio-filters or bioreactors (aerobic, anaerobic, membrane-based (bioréacteur à membrane - BAM, or membrane bioreactor - MBR), UASB - Upflow Anaerobic Sludge Blanket, etc.);
• Industrial bio-processes: digestion, fermentation, methanogenesis, composting, remediation, percolation, etc.