From Waste to Resource : Advances in Wastewater Treatment for Agricultural Reuse
Namitha Krishna, N A, Parvathy Sasikumar, Shiv Ganesh
Environment and Ecology
Urban Farm DB summary
India's population is projected to exceed 1.5 billion by 2050, and growing urbanization and industrialization are expected to substantially increase water demand and wastewater generation. Domestic and industrial use currently account for 15% of India's water reserves, a share projected to rise to 30% by 2050. Treated wastewater is described as an increasingly important resource for peri-urban agriculture, while untreated wastewater is described as posing serious environmental and health risks from toxic metals, micro-contaminants, and pathogens. This review surveys recent developments in wastewater treatment for agricultural reuse, covering both conventional sequential treatment stages that remove solids, organic matter, and other pollutants, and advanced technologies that target specific contaminants such as xenobiotics and persistent organic pollutants.