The United Nations Environment Programme (UNEP) has reported that India is on the verge of becoming a highly water-stressed country. At this stage, reducing wastewater generation and water recycling should be given due importance. Reuse of industrial wastewater has been in practice for a long time in India, and this water is mainly used for agriculture purposes in nearby areas. However, this has led to high levels of heavy metal concentration in vegetables grown with industrial wastewater.
