reservoir dam Articles - page 2 | Environmental XPRT

Assessment of water quality observation stations using cluster analysis and ordinal logistic regression technique

Variations in the surface water quality parameters of the observation stations have been investigated using cluster analysis and the ordinal logistic regression technique. Ordinal logistic regression analysis results showed that nitrite, ammonium and total phosphorus were identified as the parameters that displayed essential variations. These results were supported by the cluster analysis. The ...

Sep. 27, 2010

By Inderscience Publishers

King George V Willowstick Survey - Case Study

Atkins used Willowstick to position diaphragm wall and stop leakage through 6.2km long embankment dam With over 6km of embankment locating the exact leakage paths and hence minimising the required diaphragm wall length was made possible with the use of Willowstick. Willowstick brought confidence in the correct location of the diaphragm wall and major cost savings to the client. Efficient ...

Apr. 19, 2019

By Willowstick Technologies LLC

Comparison of different targeting methods for watershed management practices implementation in Taleghan dam watershed, Iran

Soil erosion and sediment control is important in watersheds with planned dam construction. For an efficient implementation of watershed management practices, identification of critical areas is vital. Many studies have made an effort to identify and prioritize critical sub-watersheds. But very limited studies have been conducted to rank sub-watersheds in terms of their sediment yield ...

Apr. 29, 2016

By IWA Publishing

The feasibility of non-water reaction polymer grouting technology application in seepage prevention for tailings reservoirs

Tailings reservoirs generally consist of a tailings dam, a tailings conveying system and a drainage system, which are indispensable facilities and provide security and environmental protection for storing tailings and clarifying water in some industries (e.g., metallurgy, non-ferrous building materials, nuclear and chemical industries). Consequently, consolidating seepage prevention and ...

Jun. 6, 2017

By IWA Publishing

Hangzhou Wuyang District - Case Study

Project content: Fuyang District “Five Waters Governance” information integrated management platform consists of three systems: Hechang Management, Wushui Monitoring, and Fuyang Water Control APP. It will treat industrial wastewater, agricultural non-point source pollution, rural domestic sewage and urban sewage. Pump station, river water quality, Shantang Reservoir, flood control ...

Jun. 28, 2019

By Xingyuan Environmental Technology Co. Ltd.

GAO Report on Missouri River Flood and Drought

Introduction The Missouri River stretches from western Montana to St. Louis, Missouri. The Corps manages six dams and reservoirs on the river to provide flood control and for other purposes, such as recreation and navigation. The Corps bases reservoir release decisions on the guidance in the Master Manual. In the 2011 flood, the Corps managed the highest runoff volume since 1898, resulting in ...

Oct. 1, 2014

By IWA Publishing

Study of the transit and attenuation of pollutants in a water reservoir receiving acid mine drainage in the Iberian Pyrite Belt (SW Spain)

The Sancho Dam was built in 1962 and is fed by the Meca River, which receives water from subsidiary tributaries affected by acid mine drainage (AMD), mostly generated by the abandoned Tharsis mining complex. This study focuses on the hydrochemical relations observed between the water at the entrance of the reservoir and a point located further away, specifically at the dam. The main aim is to ...

Aug. 10, 2015

By IWA Publishing

Project - U.S. Army Corps of Engineers

The U.S. Army Corps of Engineers (USACE) operates hundreds of navigation locks and dams across the country, more than half of which are over 50 years old. Despite the USACE’s multi-billion dollar investment in navigation structures, many locks, dams, and reservoirs are falling into disrepair due to age, lack of funding, and the general difficulty and hazards of conducting underwater ...

Jul. 15, 2020

By VideoRay LLC

GCL used in raw water storage reservoir to restore Walleye habitat - Case Study

Project Details Fremont Raw Water Storage Reservoir Location Fremont, Ohio Products Used BENTOMAT DN BENTOMAT 200R Constructed in 1911, the Ballville Dam serves as the source of water for the city of Fremont, Ohio. It alsoblocks fish movement on the Sandusky River, preventing walleye access to an important spawning habitat. As a result, the City of Fremont teamed up with the ...

Sep. 13, 2019

By CETCO

Water supply in Jordan under drought conditions

This paper discusses the Mujib Dam reservoir's storage during the drought years of 2007–2009. It has been concluded that the policy of unplanned water release during the dry year 2007, when little attention was paid to the possibility of a continuation of the drought, contributed to the remarkable lack of surface water storage during 2008, another dry year. For better management and planning, ...

Jan. 1, 2011

By IWA Publishing

Automated Bag Handling System Eliminates Dust, Reduces Labor for Municipal Water Treatment Plant

Two cities, one in the United States and the other in Canada, over 700 miles (1100 kilometers) apart, were experiencing nearly identical problems caused by manual addition of powdered activated carbon to their municipal water treatment systems. Both cities not only eliminated a health hazard caused by carbon powder dust, but also reduced the amount of labor required to add powdered activated ...

Nov. 20, 2009

By Flexicon Corporation

Project DAMSAFE - Innovative technologies for enhancing dam safety and water management in India - Case Study

Multi-purpose water reservoirs and dams play a major role for water and power supply, irrigation and flood protection in India. In order to ensure long-term operation and safety of the dams, adaptation planning, maintenance, repair and retrofitting are needed. DAMSAFE is a demonstration project sponsored by the Dutch Partners for Water program and supports decision making in a long-term ...

Jan. 22, 2019

By Eijkelkamp Soil & Water

Multi-year optimal operation strategy of Danjiangkou Reservoir after dam heightening for the middle route of the south–north water transfer project

The middle route of the south–north water transfer project (SNWTP) was built to relieve the pressure of increasing water demand in northern China. Serving as one of the major storage systems, optimal operation rules should be proposed promptly for Danjiangkou Reservoir, completed by a heightening project. In this paper, in order to seek out the optimal operation rules for Danjiangkou ...

Feb. 8, 2016

By IWA Publishing

The development of a real-time flooding operation model in the Tseng-Wen Reservoir

Typhoon events occur frequently in Taiwan resulting in flood-related disasters. A well-operated reservoir can reduce the severity of a disaster. This study incorporates a genetic algorithm, a river hydraulic model, an artificial neural network and a simulation model of Tseng-Wen Reservoir to propose a real-time flooding operation model. The model includes two parts: an optimal flooding ...

Jun. 18, 2014

By IWA Publishing

Impacts of Californian dams on flow regime and maximum/minimum flow probability distribution

Dams have major impacts on river hydrology with a general tendency to decrease annual maximum flows and increase annual minimum flows. The analysis of 41 streamflow series in California, USA are examined, and the results show that, as expected, the mean values and variations of annual peak flows and maximum flows of different durations are reduced for almost all sites after dam use, and the ...

Jan. 1, 2011

By IWA Publishing

Aswan High Dam Reservoir management system

The Aswan High Dam Reservoir management system was developed to simulate dam operation under varying boundary conditions taking as example climate change and Millennium Dam construction, and analyze the optimal operation rules of the reservoir taking into account a large number of objectives, including hydropower production and water supply for irrigation purposes. The developed system runs on ...

Oct. 16, 2013

By IWA Publishing

Opportunities for harnessing the increased contribution of glacier and snowmelt flows in the Ganges basin

The topography of the Ganges basin is highly variable, with the steep mountainous region of the Himalaya upstream and the large fertile plains in eastern India and Bangladesh downstream. The contribution from the glaciers to streamflows is supposed to be significant but there is uncertainty surrounding the impact of climate change on glaciers. An application of the Water Evaluation and Planning ...

Oct. 2, 2013

By IWA Publishing

Lake Fort Smith dam & reservoir enlargement

Client: City of Lake Fort Smith, Ark. Completion Date: 2006 Services Provided Intake tower with microtunnels Road relocation Raw water lines Outlet works Pressure reducing station Dam embankment Principal spillway Auxiliary spillway Project Summary Burns & McDonnell, together with Shannon & Wilson as principal geotechnical consultant, completed the final design phases for ...

Sep. 21, 2009

By Burns & McDonnell

Dynamic programming model for hydraulics and water resources simulating and optimizing water transfer system (a case study in Iran)

Inter-basin water transfer projects have large tunnels and the cost of implementation is high. In order to cut costs, this system should be optimized. In inter-basin water transfer projects, hydraulics and water resources are equally important. For optimizing, both hydraulic and hydrologic modeling flow conditions must be considered together. In this study, four dams and three water transfer ...

Aug. 23, 2017

By IWA Publishing

HDPE Earth Dam Liners for Dam Project in India - Case Study

HDPE earth dam liners are the low permeable synthetic membrane liners and geotechnical engineering materials which are widely used for solid waste containment, mining and water containment applications. BPM HDPE earth dam liners are composed of 98% polyethylene, 2% carbon black and trace amounts of antioxidants and heat stabilizers which have dimensional stability, thermal characteristics, ...

May 1, 2020

By Best Project Material Co., Ltd (BPM)

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