water control Articles
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Monitoring flow of Oude Rijn River after crane accident Alphen aan den Rijn - Case Study
Project Monitoring flow of Oude Rijn River after crane accident Alphen aan den Rijn Client Rijnland District Water Control Board Country The Netherlands Background information constructing monitoring network On the 3rd of August 2015 a new bridge was supposed to be build across the Oude Rijn River in Alphen aan den Rijn, the Netherlands. Instead, a massive accident occurred when two ...
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PLIO: a generic tool for real-time operational predictive optimal control of water networks
This paper presents a generic tool, named PLIO, that allows to implement the real-time operational control of water networks. Control strategies are generated using predictive optimal control techniques. This tool allows the flow management in a large water supply and distribution system including reservoirs, open-flow channels for water transport, water treatment plants, pressurized water pipe ...
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Strategies for the electric regulation of pressure control valves
In water distribution networks (WDNs), the classic pressure control valves (PCVs) are mechanical/hydraulic devices aimed at maintaining the target pressure just downstream or upstream of the PCV pipe, namely pressure reduction or sustaining valves. From a modelling standpoint, the major drawback of such local control is that classic PCVs may require target pressure varying over time with the ...
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Singer valve solves triple dilema in Ohio - Case Study
Their Challenge Butler County, which purchases water wholesale to provide drinking water to its population of 100,000, faced three problems. 1. Extreme pressure drops at a pressure reducing and metering facility, resulting in severe cavitation damage and extreme noise to two valves. 2. The inability to sequence the two valves. 3. The inability to accurately control levels in two remote storage ...
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A comparison between different techniques for water network sectorization
Water network partitioning represents one of the best methodologies for improving water balance and pressure control of a water distribution system in order to reduce water leakage. These techniques can be applied with greater effectiveness defining a smaller permanent network district, called a District Meter Area (DMA), achieved by the insertion of gate valves and flow meters. If the DMAs are ...
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Shillelagh sewage treatment works
Address: Shillelagh, Co. Wicklow Client: Wicklow County Council Engineer/Client Contact Details: Sean O'Neill S.E.E, Environment & Sanitary Section, Wicklow Co. Co., County Buildings, Wicklow. Ph: 0404 20100 Completion Date: September 2001 Population Equivalent: 8,00 P.E. Value: € 140,000 + Vat BMS Design Details: BMS designed, supplied, installed & commissioned 2 no. BMS BL 4000 ...
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Singer PFC valve saves Brazil water - Case Study
Their Challenge Sergio Mendonça was troubled. How could he reduce the municipality’s water losses by controlling the pressure and flow of its major pipelines? One source of São Bernardo do Campo’s water supply is 120 metres above four residential suburbs. During the day, the water pressure was sufficient due to the high demand. At night, with reduced customer demand, ...
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Seasonal water quality vs. flow relationships in a small regulated stream
The relationship of a water quality constituent with respect to flow measured at a stream monitoring station can give valuable information about the watershed and in-stream processes about the constituent in question. Seasonal dependency patterns often reveal relationships which would be unnoticed if all data are treated together. The aim of this study is to examine water quality constituent ...
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Closed Circuit Coolers: Design with winter in mind
When outside temperatures fall below freezing, water inevitably forms into ice. Open cooling towers can be susceptible to freezing due to their inherent nature of operation. As a result, ice formation becomes a subject of management, not elimination. Fortunately, there are alternative solutions. Closed circuit coolers are used for a multitude of niche applications, but are ideal for evaporative ...
By Evapco Inc.
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Automatic control valves: how to assess ACV applications
As automation and computers claimed a foothold in the operation and control of reservoirs and elevated water tanks, the industry moved the valve control from mechanical automatic control valves (ACV) to actuated butterfly and ball valves. The primary reason? Actuators can be controlled by SCADA systems, which have been almost universally implemented in modern water systems. Because of this, ...
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Envirotac II recommended at marine corps base at twenty nine palms following unbiased tests - Case Study
Study Goal: Clean Air Act Compliance With the goal of reducing particulate matter to levels in compliance with the Clean Air Act, the Marine Corps Air Ground Combat Center located at Twentynine Palms, CA is implementing measures to control dust generated from vehicular traffic on unpaved roadways and other areas of concern. Selection of Products to Test The Naval Facilities Engineering Service ...
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Application of the SWAT model to the Xiangjiang river watershed in subtropical central China
The Soil and Water Assessment Tool (SWAT) model was applied to simulate the water balance in the Xiangjiang river watershed for current and planning scenarios of land uses. The model was first calibrated for the period from 1998 to 2002 and then validated for the period from 2003 to 2007 using the observed stream flow data from four monitoring gages within the watershed. The determination ...
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Cost overruns & non-compliance in stormwater treatment. Risk management strategies.
Stormwater treatment is a vital part of construction site ESC planning and management. However, even though conventional sediment control is a fairly commoditized service, most project managers still find it challenging to estimate water treatment cost in the planning phase and manage the cost overruns, project delays and pollution incidents during the project execution. Why is it challenging ...
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Implementation of an automated system for optimal pump control - Case Study
To support their integrated water supply grid, which was designed and developed to improve resilience and security of supply in their region, Wessex Water recognised the need for a sophisticated control system. The Servelec Technologies pump optimisation system OptiMISER was identified as the best tool for this function and has been in use in the Control Room since September 2014. Since then it ...
By Ovarro
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Automatic Flow Control Valves Solve Raw Water Management Challenges
For all the historical and natural charm of Greenville, S.C., efforts to serve the city's water customers were hampered by raw water management challenges at a nearby reservoir. A new automatic flow control valve provided Greenville Water, City of Greenville Commission of Public Works, with a customized solution. Greenville is situated about halfway between Charlotte, N.C., and Atlanta, up ...
By Cla-Val
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Case study - Superfund site, water pump & treat system
Anguil Aqua Systems LLC was contracted as part of a team of companies to implement a ground water pump and treat system intended to remove trichloroethylene (TCE) from a local aquifer designated as a Superfund Site by the Environmental Protection Agency (EPA). Though the site is nestled between the buildings and roadways of an existing and operating industrial facility, the overall extent of the ...
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Pebble Beach Community Services District backup monitoring to an existing SCADA system - Case Study
Most people, not just golfers, recognize the name Pebble Beach as being one of the premier residential communities. Nestled on the shoreline and bluffs of the California Monterey peninsula, Pebble Beach is home to hundreds of multi-million dollar estates and some of the most meticulously maintained golf courses in the world. One course, the Pebble Beach golf links, hosts the annual Pebble Beach ...
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Alert Labs Expands Water Tech with Flowie-O & Shuttie Saving Water & Damage
Flowie-O and Shuttie lower utility costs and minimize property damage for residential, multi-family, and commercial buildings. Water Flow Sensor: flowie-o Alert Labs announces the expansion of its water sensor technology to help more organizations reduce wasted water, property damage, and utility costs. Building on the success of the Flowie water flow sensor, Alert Labs has now expanded its ...
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Modular treatment system neutralizes process water
A self-contained pH control and monitoring sys- tem for ready mixed operations yields clean water for recycling or permitted discharge to the environment. Fortrans' Model 5000S uses car- bon dioxide gas to neutralize high-pH process water, offering precise alkalinity monitoring and control of water in pits, settling basins and other containment areas, as it lowers total suspended solids. ...
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Dam Structure Safety Installation and Repair Using Advanced Geosynthetic Technology
Dams and Spillways Are a Critical Part of U.S. Infrastructure With estimates of 84,000 structures nationwide, dams and spillways are essential for controlling flooding, water distribution and management, and providing hydroelectric power. Unfortunately, these structures cannot last forever. The average age of dams and spillways in the US is 57 years, seven years over the typical 50-year lifespan ...
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