In a dairy products processing plant, where should there be no floor drains?

In a dairy products processing plant, the presence of floor drains should be carefully managed to prevent hazardous materials from contaminating the wastewater system. In areas where solvents are used for parts cleaning, there should be no floor drains to ensure that the solvents do not accidentally enter the drainage system. Solvents can be toxic and harmful to the environment, so it is crucial to keep them contained and disposed of properly, rather than allowing them to mix with other wastewater.

In contrast, areas with frequent cleaning may require drains to effectively manage wash water, and where wastewater is processed, drains are essential for the system's function. General storage areas typically do not involve hazardous materials or chemicals needing special containment, making the presence of drains more acceptable in those locations. Thus, the specific concern regarding the potential risk posed by solvents highlights why drains should be avoided in those specific cleaning areas.