Abstract A key challenge in many regulated rivers is to define adequate flow levels protect aquatic organisms. Provisioning of suitable can be pivotal bottlenecks for fishes such as salmon and trout that use the riverbed an incubation habitat. Additionally, locations where females spawn will probability embryos dewatered during period a regime. We investigated water flow, dewatering, mortality ...

The aim was to design a MATLAB program calculate the phreatic surface of multi-well system and present graphical shape water table drawdown induced by extraction. Dupuit’s assumption is base for representing dewatering curve. will offer volume be extracted, total number wells, spacing between them as well expected settlement soil surrounding foundation pit. arrangement required in execution wor...

A concentrate treatment process is needed to improve the quality of concentrate. Processing copper minerals by drying or dewatering. The slurry dewatering intended inhibit rate damage concentrate, and it easy distribute through shipping. PT. Freeport Indonesia has 2 types machines for process, Rotary Dryer VPA (Vertical Pressure Airblow). dryer dries evaporating water in a combustion with tempe...

Abstract Sludge is one of the by-products wastewater treatment plants (WWTPs). To assist biological processes, part produced sludge returned to process and excess removed from plant whereby it undergoes thickening dewatering. Numerous studies have been conducted investigate effect different coagulants on dewatering sludge, but using divalent iron for this purpose has not investigated so far. In...

sludge drying bed is preferred to mechanical methods due to the need for very simple technology. due to restriction of natural dewatering, we tried to eliminate some of these limitations by the tests and studies of assumptions. in this study, the effect of hydrostatic suction and sludge chemical conditioning has been studied in the natural sludge dewatering optimization. at first, hydrostatic s...