by ebs | Jun 6, 2025 | Cold weather, Nitrification
When temperatures drop, wastewater systems that typically run smoothly in warm weather can quickly unravel into compliance issues. Cold weather significantly slows biological activity—especially in nitrifying bacteria (nitrifiers), which are essential for carrying out...
by ebs | May 23, 2011 | Biochemical Oxygen Demand
The biochemical oxygen demand (BOD) test is a measurement of the quantity of oxygen required by bacteria to biologically oxidize organic material under aerobic conditions. Biochemical oxygen demand (BOD) is usually expressed in mg/L but can also be expressed in...
