Wastewater is a growing health and environmental threat, accounting for almost as many planet warming emissions as the aviation industry.

This Compendium of Best Practices is a repository of unique and effective water management strategies applied nationally as well as internationally.

This document highlights the scope of reuse of treated wastewater for urban/peri-urban agriculture, its challenges and the way forward. The potential of reusable treated wastewater keeps on increasing as the urban centers grow out to accommodate the fast pace of urbanization.

Arab countries in the Middle East and North Africa (hereafter called “the region”) generate around 21.5 billion cubic meters (BCM) of municipal wastewater each year.

Given the exponential amount of wastewater generated in the country, India has immense potential to meet the growing water demand across different sectors and improve its water environment with proper wastewater management. This study presents the case for mainstreaming the reuse of treated wastewater in India.

The Compendium of liquid waste management technologies is primarily a capacity building tool and reference book.

As this book highlights, the number of (direct) water reuse projects has doubled every decade since 1990, and there are more than 400 operational projects now in the MENA region. Nevertheless, the potential for resource recovery from municipal wastewater in the MENA region is still untapped.