Sewage sludge and biosolid materials can sometimes be used as daily covers if they meet strict environmental and health regulations. These materials are treated to reduce pathogens and moisture content, allowing them to form a layer over the waste that helps control odors, minimize litter, and limit access by pests.
Because they are organic and lightweight, they can be applied relatively easily and occupy less landfill space than traditional soil. Operators must carefully monitor the quality and consistency of the material to prevent potential contamination or runoff that could harm the surrounding environment. While not as commonly used as other types of daily covers, treated sludge and biosolids offer a way to recycle waste products while maintaining the protective functions required for daily coverage.
