Which of the following best describes the term "suspended solids" in wastewater?

The term "suspended solids" in the context of wastewater refers specifically to solid particles that remain floating in the liquid rather than settling to the bottom. These solids can be of various sizes and compositions, including organic material, inorganic particles, and other debris. The defining characteristic of suspended solids is that they can typically be removed from the wastewater through filtration or sedimentation processes, which are critical in treating wastewater to meet environmental standards.

Understanding suspended solids is essential because their concentration in wastewater can significantly affect treatment processes, water quality, and the aquatic environment. Removal of these solids is a primary goal in wastewater treatment to prevent them from causing pollution in receiving water bodies.