Hydroelectric reservoirs bury significant amounts of organic carbon (OC) in their sediments. Many reservoirs are characterized by high sedimentation rates, low oxygen concentrations in bottom water and a high share of terrestrially derived OC, and all of these factors have been linked to a high efficiency of OC burial. However, investigations of OC burial efficiency (OCBE, i.e., the ratio betwe...

The Three Gorges Dam project (TGDP), with a total static investment of 95.46 billion RMB (US$10.97 billion) based on the 1993 price level, commenced in 1994 and was completed in 2012. The creation of the Three Gorges Reservoir following the completion of the TGDP had brought about significant changes to the Three Gorges Reservoir Region (TGRR), stretching from the town of Sandouping in Hubei Pr...

Comminution (fragmentation) of solid particles is important in a range of technologies. An interesting effect is the so-called comminution limit (CL), which is effectively a brittle/ductile transition. Above the CL particles fail by fracture. However, as particle size decreases the amount of stored energy in the particle also decreases and eventually there is no longer sufficient stored energy ...

Abstract: Control of reservoir sedimentation in order to ensure their sustainable use has drawn attention among water engineers and water resource managers. Several methods have been proposed, but most of the developed methodologies are incapable of modelling bed evolutions, while at the same time, compute sediment flushing efficiency. In this study a two-dimensional bed evolution model is prop...

Aim of the study: The aim study was to evaluate changes in concentration selected ions waters Słupsko dam reservoir and determine its role as a "primary sedimentation tank" for Pławniowice reservoir. Material methods: Determination factors causing these made on basis measuring number physical chemical parameters between March 2019 February 2020. research carried out terms checking potential unf...

Water storage reservoirs can be either sustainable or exhaustible. In the absence of sediment management, reservoir is an exhaustible resource with long-term consequences. Previous economic planning essentially guaranteed non-sustainable solutions. This paper describes a new paradigm for assessments and existing reservoirs. The provides framework comprehensive accounting benefits costs over suf...

The routine measurement of direction-dependent reservoir rock properties like permeability often takes place along the axial direction of core samples. As permeability is a tensor property of porous materials, it should be fully described by a tensor matrix or by three main permeabilities in principal directions. Due to compaction, cementation, and other lithification processes, which take plac...

sedimentation in reservoirs reduces dams storage and makes many problems in their operation. therefore accurate computation of sediment volume is essential for appropriate design and optimum reservoir management during its operation. in this research long term field data of sefid-rood dam were used to check the sediment volume computed for ghezelozan basin. the computed volume of sediment by ra...

Solar thermal energy and its possible role with regard to self- passive control sedimentation in large reservoirs behind dams is discussed. It known the impact caused by because drastic reduction of natural water flow velocity rivers consequent sediment trapping. Sediment trapping reservoir has not only an environment reducing transported deltas but also limits useful lifetime dam for flood con...