Microbial Products Blog: Soil, Wastewater and Livestock

Bioaugmentation means adding selected bacteria to a wastewater system to do work the native population cannot keep up with, and the gap is largest in cold water. The textbook rule says biological activity falls by half for every 10°C drop, so a plant at 4°C should keep about a quarter of its summer activity. In a three-day bench test, three standard commercial bioaugmentation products kept 1%, 5% and 20% of their 25°C activity at 4°C. Low Temperature (LT) Microbes, a Bacillus blend selected for cold, kept 92%. The rule is an average, and individual products land far on either side of it.