7. Waste Disposal
7.3 Wet waste
Most process water can be collected in silos and reused after a simple settling process. However, the solids settling in silos and settling tanks present a problem. If this material cannot be returned to the process, steps must be taken to dispose of it in a proper manner. This means correct disposal in landfill sites. The handling of this material can present a problem to the worker, particularly when it is allowed to dry out. Therefore, the crew removing this material must receive proper training, equipment and protective clothing.
If some of the process water is discarded, care must be taken that it does not contaminate land and water around the plant. A recommended procedure is to lagoon this water and remove the material settled out to a landfill site. This task should be performed by trained personnel capable of handling potentially hazardous situations.