batiaghata upazila, khulna district in south-west coastal region of bangladesh is the mostly saline affected area, where agriculture activities are mainly dependent on rainfall. 23 water samples from surface water and shallow tube well (stw) were collected in the monsoon season and analyzed for physico-chemical properties to classify them according to salinity hazard. electrical conductivity (e...

djendjen river is one of the largest rivers in the region of jijel (algeria). human activities such as urban discharges, industrial, agricultural, and livestock have significant effects on the quality of water. the present study attempts to evaluate the quality of water along the banks of the djendjen river at different sampling sites, using physico-chemical and bacteriological methods. the col...

Water treatment using nano-materials can have a significant impact due to its surface properties. Coagulation techniques were studied by 3 mL/L of 0.5% different coagulants (polyacrylamide, poly aluminum chloride (PAC), ferric chloride, sulfate, and nanocellulose). Results indicated that the turbidity removal efficiency 91.6%, 93.04%, 95.2%, 95.4%, 99.4%, respectively. Treatment water samples c...

Two contrasting estuarine copepods, Acartia tonsa and Eurytemora carolleeae, the former a broadcast spawner latter brood spawner, were fed constant carbon-based diatom diet, but which had variable N:P content, elemental composition (C, N, P) of tissue eggs, as well changes in rates grazing, excretion, egg production viability measured. To achieve varied Thalassiosira pseudonana was grown contin...

This study was carried out primarily to understand the hydrogeochemical processes controlling 226Ra anomalies in Ramsar area. Analyses revealed two types of water: (1) non-thermal Ca–HCO3 type and (2) thermal Na–Cl type, mainly meteoric hydrothermal origin, respectively. Non-thermal springs have higher concentrations U due silicate weathering. Thermal are characterized by high 226Ra, As, Fe, Li...