What is a solid that can be filtered out of wastewater called?

The correct terminology for a solid that can be filtered out of wastewater is "suspended solid." These particles are not dissolved in the water and can be physically separated through filtration or sedimentation processes. Suspended solids can include a variety of materials such as dirt, mud, organic debris, and other particulates that remain suspended in the water, affecting its clarity and quality.

Understanding suspended solids is crucial in wastewater treatment, as their presence can indicate pollution levels and the efficiency of treatment processes. Effective removal of suspended solids is necessary for reducing environmental impact and ensuring safe discharge into water bodies.

Other options, while related to solids in wastewater, do not accurately describe the type of solid that is specifically removable by filtration. Nutrient solids refer to compounds that may contribute to nutrient pollution but are not a category defined by their removability. Fecal matter is a specific type of organic material that can contribute to wastewater pollution but does not encompass the broader category of all materials that can be filtered. Organic solids, while they may be suspended, include a large range of biodegradable materials and do not define the characteristic that they can be filtered out of wastewater. Therefore, "suspended solid" is the most precise and accurate term in this context.