Water reclamation includes the processing of water obtained from different sources to generate a new water appropriate for other purposes like groundwater replenishment, agriculture and land irrigation, potable water supplies, industrial facilities, and environmental restoration. Recycled water can be applied for diverse perspectives to share the burden of freshwater sources. In many areas of the world, the entire potential of using reclaimed water is not yet explored. Moreover, different national and international bodies defined different guidelines for reclaimed water specific to the particular use. This chapter details the sources, treatment technologies, reusability, regulations/guidelines of different global authorities, and the possible issues connected with economic, environment, and the public health.
