Florida Wastewater Practice Test

What is the term for a sudden increase of BOD by 50% or a BOD >400?

1. Shock loading

2. Increased organic load

3. Overload condition

4. High-strength waste

The correct answer is: Increased organic load

The correct term for a sudden increase in Biochemical Oxygen Demand (BOD) by 50% or a BOD greater than 400 is "shock loading." Shock loading refers specifically to a situation where there is a significant and rapid introduction of organic matter into a wastewater treatment system. This rapid influx can overwhelm the system's biological treatment processes, leading to potential treatment failures and impacts on water quality. In contrast, increased organic load describes a gradual increase in organic matter, while an overload condition typically pertains to a sustained excess in organic material rather than a sudden spike. High-strength waste refers to wastewater with a high concentration of organic materials but does not specifically denote the abrupt change in BOD levels associated with shock loading. Understanding the nuances of these terms is essential for effective wastewater management and treatment process control.