More than 70,000 large dams have been built worldwide. With growing water stress and demand for energy, this number will continue to increase in the foreseeable future. Damming greatly modifies the ecological functioning of river systems. In particular, dam reservoirs sequester nutrient elements and, hence, reduce downstream transfer of nutrients to floodplains, lakes, wetlands, and coastal mar...

Abstract Purpose As documented by multiple studies, the construction of artificial reservoirs influences fluvial processes. The hydrographic barrier causes a water regime change, and effects are evident in accumulation sediment reservoir as well intensification erosion process below dam due to lack sediments for transport river. Moreover, use lateral canals on additional transformations river s...

Ultrafiltration (UF) systems have been used globally for treating water from resources including rivers, reservoirs, and lakes for the production of potable water in the past decade. UF membranes with a pore size of between 0.1 and 0.01 micrometres provide an effective barrier for bacteria, viruses, suspended particles, and colloids. The use of UF membrane technology in treating groundwater for...

The main population centre of the volcanic Hawaiian-island chain in the north-central Pacific Ocean is on the island of Oahu (population about 900,000) (Figure 1). Oahu depends on ground water, which is mainly produced from coastal aquifers, for its potable-water supply. Oahu has high rainfall, highly permeable aquifers, and a coastal confining layer that results in high heads at the coast and ...

there is much discussion going on lately whether dam construction is economic or not in termsof social consequences. accordingly, various techniques and software have been released to estimate the real social cost of dam construction among which, the software simpacts has been used extensively by researchers, worldwide. the present version of simpacts software only focuses on adverse effects of...

there is much discussion going on lately whether dam construction is economic or not in termsof social consequences. accordingly, various techniques and software have been released to estimate the real social cost of dam construction among which, the software simpacts has been used extensively by researchers, worldwide. the present version of simpacts software only focuses on adverse effects of...