Sludge Scholars
Empowering Wastewater Operators
Wastewater Treatment Basics
What is Biochemical Oxygen Demand (BOD)?
Biochemical Oxygen Demand (BOD) is a critical water quality parameter that measures the amount of oxygen consumed by microorganisms (mainly bacteria) while decomposing organic matter in water.
What is Activated Sludge?
Activated sludge is a biological wastewater treatment process where microorganisms break down organic pollutants in aerated tanks, forming a flocculent biomass. This biomass, known as mixed liquor, is separated from the treated water in a clarifier and partially returned to maintain an active microbial population.
Treatment Processes
Explore the different wastewater treatment plant options, how they work, and the equipment that makes them effective. Whether you’re curious about municipal treatment plants, industrial systems for specific industries like food and pharmaceuticals, or sustainable solutions like greywater recycling, this guide will help you understand the right treatment system for any situation.
MLSS vs. MLVSS
In wastewater treatment, Mixed Liquor Suspended Solids (MLSS) and Mixed Liquor Volatile Suspended Solids (MLVSS) are essential parameters that help operators monitor the concentration of solids and the activity of microorganisms in the aeration tank, but understanding their key differences is crucial for effective process control.
