In winter we often receive questions about whether cold weather will effect bioaugmentation. The simple answer is, “Not as much as you think – as long as you are thinking about it and plan ahead.”
The deep soil and ground water temperature is stable below the frost depth. In the Midwest United States, this depth is about 36 inches. So once the micorbes are in the soil or ground water below that depth, the atmospheric temperature does not matter.
The stable temperature of deep soil and ground water is approximately the average annual atmospheric temperature. In the Midwest United States, the ground water and deep soil temperature is about 50 to 55 degrees f. In the southern United States, the stable deep temperature is around 70 degrees f. The microbes selected for bioaugmentation should be able to grow at these temperatures.
The Pseudomonas sp. microbes in CL-Out, Munox and Petrox grow at a temperature range from 32 to 105 degrees f. This phenomenal growth range means that our products can be used under most natural temperature conditions. Other microbes may not grow at low temperatures.
Proper handling microbes at variable atmospheric temperatures can improve the bioremediation effectiveness by increasing the population for bioaugmentation. Our products should be hydrated at 70 to 80 degrees f. Hydration at a high temperature increases the population before injection into colder conditions where the metabolism will be slower. The higher population increases the rate of remediation and effectiveness of bioremediation.
CL Solutions will help you plan for hydration and application of our products under any conditions. Give us a call when planning bioaugmentation.