The 4th IWA Resource Recovery Conference will bring together the scienctists and practicians from all over the world to discuss global best practice, advances in fundamental science, innovative research, successful case studies as well as economic, legislative, and societal opportunities and barriers in relation to resource recovery from water. Building upon the successful conferences in Belgium, the USA and Italy, the fourth Resource Recovery from Water Conference will take place in the beautiful city of Istanbul, Turkey in 2021. This conference will play host to 300+ water professionals and practitioners from around the globe across a range of disciplines including researchers, water utilities, technology providers, policy makers, consultants as well as market segments and industries outside of the water sector that can valorize the recovered resources