**6. Conclusions**

Wastewater sludge reuse and recycling prior to disposal serves as the basis of sludge management. The energy and resources that can be obtained using sewage sludge could be a long-term solution for disposal, resource recovery, and future energy needs. The application of these steps on a practical ground will be a fascinating approach for ensuring the long-term sustainability and lowering the overall carbon footprint. This chapter provided a brief discussion of the possible options for the treatment of sewage sludge and its reuse options after smaller amendments on soil as fertilizer, compost, concrete production, biogas, and bioplastics. Wastewater treatment plants generate a certain level of carbon footprint and wastes; therefore, it is necessary to reduce the carbon footprint and manage the waste in order to keep the world safe.
