Total Volatile Solids (TVS) are defined as?

Total Volatile Solids (TVS) are defined as the fraction of solids in wastewater that can be volatilized when subjected to high temperatures, typically around 550 degrees Celsius. When organic solids are burned at this high temperature, they are converted into gases and ashes, which allows for the measurement of the organic material present in the sample. This reflects the presence of biodegradable material, primarily from organic sources.

In wastewater treatment processes, measuring TVS is essential as it helps in assessing the organic load, which can indicate how effectively the treatment process is working. The ability of these solids to be combusted and quantified provides valuable information about the biochemical properties of the sludge involved in wastewater treatment systems.