ABSTRACT
Liquid waste is considered one of the main causes of contamination of the surface water, ground water, and the soil, thereby posing a threat to the environment, animals, and human health, and water scarcity. Water is vital for all lives. A proper and sustainable liquid waste treatment and management has the potential to minify waste production, to generate fertilizer, and to produce energy through the methanation process. In addition, it plays an important role in mitigating water scarcity. This chapter presents different types of wastewater, and the different technologies and methods used in their treatment and management. This chapter focuses on the sustainable technologies of liquid waste treatments.
