Florida Wastewater Practice Test 2026 – Complete Exam Prep

Total Suspended Solids (TSS) primarily consist of particles that are suspended in water, which can include both settable solids and suspended solids. Settable solids are those that can settle out of the water column when allowed to stand for a period, while suspended solids remain dispersed in the liquid. TSS is a critical parameter in wastewater treatment as it is indicative of the cleanliness of water and is related to the ability of the water to support aquatic life.

The other options involve different classifications that do not encompass the full scope of TSS: for instance, soluble and volatile refers to substances that remain dissolved in water rather than being suspended, and organic and carbonaceous pertains to a specific type of material rather than total solids. Thus, understanding the composition of TSS as comprising both settable and suspended solids is key to managing wastewater effectively.