Define total suspended solids (TSS).

Total suspended solids (TSS) refers to the solid matter present in water that is not dissolved and can be trapped by a filter. These solids can consist of a variety of materials, including organic matter such as plant debris and microorganisms, as well as inorganic substances like silt and sand. The presence of TSS is significant in wastewater treatment because it can impact the efficiency of treatment processes, affect water quality, and influence the aquatic ecosystem into which the treated water is released.

Particles classified as TSS are typically small enough to remain suspended in the water column, contributing to turbidity and potentially creating issues related to light penetration, photosynthesis in aquatic plants, and oxygen levels in water bodies. Monitoring TSS is crucial for assessing the effectiveness of treatment processes and ensuring compliance with environmental regulations. This definition encompasses a broad range of particles present in wastewater, making it a comprehensive descriptor for materials that pose treatment challenges.