What characterizes TVSS in terms of filtration and combustion?

The correct answer characterizes Total Volatile Suspended Solids (TVSS) as solids that cannot pass through a 1.2-μm filter and are burned away when placed in a furnace at 550℃. This definition is important because it emphasizes the nature of TVSS in wastewater treatment processes.

The inability of these solids to pass through a 1.2-μm filter indicates their relatively larger size and particulate nature, which is significant in the analysis and treatment of wastewater. These solids consist of organic materials that are suspended in the water and are relevant in assessing the quality of wastewater.

The combustion of these solids at a specified temperature (550℃) serves multiple purposes in wastewater treatment analysis. This process helps to quantify the amount of organic material present, as the solids are converted to ash, which allows for easy comparison against regulatory standards for waste disposal and treatment. By understanding the characteristics of TVSS, operators can better manage the treatment processes, ensuring compliance with environmental standards and improving the efficiency of wastewater treatment operations.

In contrast, the other options fail to adequately describe TVSS. Some refer to solids that can pass through filters or are completely dissolved, which do not accurately reflect the properties of TVSS. Others describe floating