Changes In Quality Of Supplied Drinking Water From Sources To Households In Dhaka City.- Low Cost Iron Removal Technology From Groundwater Using Locally Available Materials.- Spatial Variability Of Metal Elements In Soils Of A Waste Disposal Site In Khulna: A Geostatistical Study.- Low-Cost Salinity Treatment For Drinking Purpose Using Indigenous Materials.- Development And Characterization Of Novel Mn-Fe-Sn Ternary Nanoparticle By Sol-Gel Technique.- Potential Utilization Of Textile Dyeing Sludge, Pet Granules And Fly Ash In Lightweight Concrete Block.