What Does SVI Stand For?

SVI stands for Sludge Volume Index

SVI, or Sludge Volume Index, is a key parameter used in wastewater treatment to assess the settleability and performance of activated sludge systems. It is calculated by measuring the volume of sludge that settles in a specified period, typically expressed in milliliters per gram of total suspended solids. A lower SVI indicates better settling characteristics, which is crucial for effective solids separation and overall operational efficiency in treatment facilities.