AN INDICATOR FOR
INCREASE YOUR PRODUCTIVITY
WITH ATP 2G!
Procedures for the biological treatment of waste water, biogas production or compost are based on controlling microbial populations that are involved in biofermentation reactions and the biodegradation of organic matter.
• the quality of the organic matter (nitrogen/carbon composition, absence of toxic substances and inhibitors);
• controlling the biological reactions (oxygen, temperature, humidity, pH, nutritional balance);
• the activity of the microbial populations (viability, density, diversity).
Optimizing the yield from these processes represents an important future challenge for these fields.
• Biological processing of waste water occurs in purification facilities (water-treatment plants) in the presence or absence of oxygen due to the activity of free (activated sludges) or fixed (biofilters) aerobic or anaerobic micro-organisms.
• Methanogenesis occurs in bioreactors in the absence of oxygen due to the activity of mesophilic (grown at 35°C) or thermophilic (grown at 55°C) anaerobic bacteria.
• Composting occurs in heaps (open air mounds) and requires a constant supply of oxygen (introduced by mechanical tumbling) to activate the aerobic microbial flora.
Rapid microbiological analysis tools like ATP 2G provide a relevant biological indicator for:
• monitoring the health of a microbial population in activated sludges or biofilters used in the biodegradation of organic matter and waste water;
• monitoring the level of clogging or blockage in biofilters used to filter and purify waste water and reclaimed water;
• evaluating the methanogenic status by following changes in the active biomass;
• evaluating the maturity of compost (second phase of composting) by following changes in the active biomass;
• anticipating uncontrolled shifts in the methanogenesis process (abrupt changes in the composition of the organic matter, presence of toxic materials);
• controlling the toxicity or fermentable quality of different sources of organic material undergoing methanogenesis (in parallel with measurement of the BMP - Biochemical Methane Potential) to improve the balance of these components within the reactor.
The Biomass Stress Index™ (BSI in %), which corresponds to the proportion of extracellular ATP to total ATP, is a numeric indicator that describes the level of cell death and stress in a biomass involved in a biological process (or present within a facility). The higher the BSI, the greater the level of cell death.
• In purification facilities, the health of the biomass involved in treating waste water can be tracked to quickly evaluate the toxicity of an effluent on active flora.
• During methanogenesis, the reason for a poor yield from fermentation of an organic source can be determined, whether it is linked to the presence of toxic compounds (high BSI) or a composition that is unfavorable to microbial growth (low BSI). The most toxic substances can be removed from the process, or the different sources used in a bioreactor can be re-balanced to determine the combination that produces an optimal output.
• During composting, cell death increases as the compost matures. The BSI can therefore be used to monitor changes in the progress of the composting process.