SCADA control Articles
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An Overview of OPC UA
What is OPC UA in SCADA systems? Supervisory Control and Data Acquisition (SCADA) systems use hardware and software to improve system operations. The goals of these solutions are to minimize friction points and increase efficiency. SCADA allows for greater automation and faster decisions across a variety of industries. OPC UA is a communication protocol used by SCADA systems to enable an ...
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Water, Wastewater and Stormwater Infrastructure Management
Explains how to optimize the operation of water supply systems and the related advances in SCADA – Supervisory Control and Data Acquisition – systems Examines the advances in design and construction methods such as BIM – Building Information Modeling Explains municipal budgeting, chain of planning, programming, and other related subjects Includes new information ...
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Monitoring, environmental emergencies management and water treatment improvement of freshwater lakes in China: the Chao Lake case study
Severe eutrophication of freshwater lakes, with the subsequent risk of algal blooms, has a critical effect on the safety of drinking water supplies in China and is one of the main environmental emergencies in the country. This paper focuses on Chao Lake, a large, shallow eutrophic lake used as a source of drinking water. The study considers the possibilities of improving the lake monitoring ...
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Qdos metering pumps usurp diaphragm models in potable water application
The revolutionary new Qdos 30 metering pump from Watson-Marlow Fluid Technology Group is proving a resounding success in Barrie, Canada. Located in southern Ontario on the western shore of Lake Simcoe, Barrie is a modestly sized city (135,000 residents) but one with a track record for quality when it comes to its potable water supply. Here, the Water Operations Branch of the Corporation of the ...
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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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Keeping Your Control Valves in Good Health
Whether that brand new control valve in your system is the first one you have ever had to look after or if you are an old hand at valve maintenance with tens of valves in your system, there are a few simple guidelines and reminders for keeping it operating at optimal performance. It’s important to physically check valves at least every 12 weeks or so, assuming everything is running fine in ...
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Healthy Control Valves
A simple maintenance routine can help ensure trouble-free valve operation. Whether the control valve in your system is the first one that has required maintenance or if you are experienced with maintaining multiple valves in your system, some simple guidelines can help keep them operating at optimal performance. Physically checking all valves at least every 12 weeks is important, assuming that ...
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Compliance is King but at What Cost?
For years Plant Managers sole purpose has been to ensure that their plant remains within it’s set compliance ranges, but at what cost? On one site we managed £380,000 or 26% worth of energy savings, 3.9GWh, 2995 tes CO2 reduction and improvement on Compliance. This was on a substantial sized site but these percentage savings can be replicated on most sites. Strathkelvin ...
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WWTP installs new affordable ortho-phosphorus analyzer to help contain escalating chemical costs - Case Study
Wisconsin’s Department of Natural Resources recommended a reduction in the state’s phosphorus limit from 1 ppm to 0.05 ppm for inland lakes and streams (0.5 ppm for the Great Lakes) in efforts to improve water quality and reverse eutrophication of state’s lakes and rivers. These new limits when adopted will force many WWTPs to spend more on chemicals and invest in new equipment. ...
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Iridium Satellite and SCADA System Communication
Monitoring the performance of a complex utility system requires reliable communication. It may be possible to work with a local wireless network or cellular network for smaller areas. However, these solutions may not provide sufficient coverage for larger systems. For reliable communication and real-time monitoring, many organizations look to the heavens for solutions enabled by satellite ...
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Real-time modeling of trihalomethane formation in a full-scale distribution system
Using a combination of modeling and online water quality instrumentation, utilities can produce real-time predictions of trihalomethane (THM) formation in their distribution system. In this study, an empirical model was used to predict THM formation and embedded into a full-scale supervisory control and data acquisition (SCADA) system. Online water quality instrumentation provided input values ...
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Utilities expand personnel capabilities with managed SCADA system - Case Study
As the water and wastewater industry faces a shrinking labor source, remote monitoring can fill the experience gap. About one third of water and wastewater utility workers will retire by 2018, according to the 2008 Water Environment Federation report. More than 79 million baby boomers will reach retirement age during the next 10 years. According to a study authored by Jones and Henry Engineers, ...
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Melbourne water’s, Werribee wastewater treatment plant, Victoria, Australia - Case Study
Werribee Wastewater Treatment Plant The GE Jenbacher generator runs on sewage gas (a type of biogas) produced from the sites anaerobic digesters. The generator is connected, via an integrated 415V circuit panel to step-up transformer. High voltage electricity is exported via transformers to provide base load power to Melbourne Water. The plant is designed to supply Melbourne Water with its ...
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Remotely Monitoring Conductivity in Treated Water
Explore the importance of remotely monitoring conductivity in treated water for quality assurance and safety. Learn about the technology, benefits, and key considerations for efficient water management. Introduction In the era of advanced technology, ensuring the safety and quality of treated water is of paramount importance. Remotely monitoring conductivity in treated water plays a crucial ...
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Modelling and optimized water management of artificial inland waterway systems
A decision support system (DSS) for optimized operational water management of artificial inland waterways is presented. It will be deployed as part of a supervisory control and data acquisition (SCADA) system of the Mittellandkanal (MLK), a large canal structure in northern Germany, and relies on experience gained from a similar system. The DSS uses a model predictive controller with a 48 h ...
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Industrial ASBR Wastewater Treatment Facility, India - Case Study
This two (2) basin ASBR facility near Mumbai, receives a variety of industrial wastewaters collected from many factories and chemical production facilities. The 10,000 m3/d wastewater plant comprises flow metering, chemical treatment, pH correction, flow splitting, flow equalization with aeration, chemical precipitation and lamella plate clarification, two (2) basin ASBR biological treatment ...
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Case study - Industrial ASBR wastewater treatment facility, India
This two (2) basin ASBR facility near Mumbai, receives industrial wastewaters collected from a variety of factories and chemical production facilities. The 10,000 m3/d wastewater plant comprises flow metering, chemical treatment, pH correction, flow splitting, flow equalization with aeration, chemical precipitation and lamella plate clarification, two (2) basin ASBR biological treatment ...
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Feed-forward coagulant control using online UV/Vis monitoring
Water quality from the Murray River, Australia, can vary considerably and is expected to become more challenging to treat due to recent drought followed by widespread flooding and future climate change impacts. Better tools are required to help plant operators maintain water quality. Morgan water treatment plant (WTP) operates overnight to take advantage of off-peak electricity, however the ...
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Oil Analysis Helps Water Plant Cut Annual Maintenance costs by $25,000 - Case study
The city of Chandler (Ariz.) Municipal Utilities Department (MUD) employs coagulation, sedimentation, active flow control and filtration to produce 60 million gal per day (mgd) of water at its surface water treatment plant. In addition, the system includes 27 wells and 21 booster stations controlled by SCADA. Water distribution is provided through more than 1,200 miles of water main, in excess of ...
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Water level sensors help Australian irrigation
Irrigation management is serious business in Australia especially within the Murray-Darling Basin, a 1,000,000 square kilometer watershed that is home to Australia’s most productive agricultural land. The basin’s 23 rivers have some of the lowest and most variable flows in the world. A massive system of dams, lakes and canals stores water from mountain snowmelt and seasonal ...
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