PART I: Wastewater Management and reuse -- Wastewater Management Journey - From Indus Valley Civilisation to the Twenty first Century -- Integration of Membrane Processes for Optimal Wastewater Management -- Recent advances in the reuse of wastewaters for promoting sustainable development -- Reducing the Pollution from Tanneries by Processing Wastewater reuse and membrane technologies -- Wastewater Reuse Focused on Industrial Applications -- PART II: Wastewater Treatment Options -- Hazardous Agents in Wastewater - Public Health Impacts and Treatment Options for Safe Disposal and Reuse -- The small-scale approach in wastewater treatment -- Hospital Wastewaters: Quali-quantitative Characterization and for Treatment and Disposal -- Advances in Mechanical Dewatering of Wastewater Sludge Treatment -- Biosorption of Heavy Metals: Recent trends and Challenges -- Water Desalination by Sola Energy -- AOPs Applications on Dyes Removal -- Constructed wetlands for reducing pesticide inputs into surface water and groundwater -- PART III: Risk Assessment -- Tracing nitrogen sources and cycle in freshwater through Nitrogen and Oxygen isotopic research -- A step-wise approach to assess the fate of nitrogen species in agricultural lowlands -- Environmental risk assessment of WW II shipwreck pollution -- Methods to countermeasure the intrusion of seawater into coastal aquifer systems.