water grid Articles
-
Remote automation and analytics for a smart water grid
Objectives identified by OFWAT include the improvement of day-to-day resilience through the reduction of the number of supply interruptions, sewer flooding and pollution incidents, the reduction of water leakage and introduction of performance commitments specifically on improving resilience to drought and flooding. Recommendations include the assessment of a wide range of options including ...
By Rotork plc
-
Hourly water demand forecasting for micro water grids
Many countries have problems related to water scarcity and are thus seeking to promote greater water efficiency. A micro water grid (MWG) is a high-efficiency water management system that integrates information and communication technologies (ICT) for the water distribution systems in individual buildings. More accurate forecasting of hourly water demand is necessary if these systems are to ...
-
DelAgua Kit Case Study - Comet-ME Testing in South Mount Hebron Region
Comet-ME is an Israeli-Palestinian NGO providing sustainable off-grid energy and water services to rural Palestinian communities in the South Mount Hebron region of the occupied Palestinian territories. The local Palestinian communities are not connected to the water grid and people depend on seasonal rainfall for their water supply, harvesting the rainwater in cisterns. Come-ME's water ...
-
Application of the LBM with adaptive grid on water hammer simulation
A lattice Boltzmann method (LBM) is utilized to solve single-phase transient flow in pipes. In order to eliminate grid limitation related to the method of characteristics, governing equations are modified using appropriate coordinate transformation. The introduced modification removes connection between Courant number and spatial disposition of the computational nodes, forming a more flexible ...
-
Demographics as a new challenge for sustainable development in the German wastewater sector
The coincidence and dynamics of population decline and aging and a new regional distribution of the population pose a new challenge for a sustainable development for which there is no historical precedent. The regional distribution of population reduction will vary considerably. Shaping the future politically means facing up to the challenges of the demographic change and thus trying to answer ...
-
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
-
Desalination in the Caribbean
Islands have long relied on the process to supplement natural water supplies More than 7,000 islands of the Caribbean Archipelago are scattered over a million-square-mile area between North and South America. Some smaller islands are naturally dry, but some volcanic islands — like Grenada and St. Lucia — are well forested and provide significant water catchment to support spring ...
-
Desalination in the Caribbean
On Aruba and some other Caribbean islands, a lack of rainfall makes desalination a logical choice for ensuring potable water supplies. Islands have long relied on the process to supplement natural water supplies More than 7,000 islands of the Caribbean Archipelago are scattered over a million-square-mile area between North and South America. Some smaller islands are naturally dry, but ...
-
World Bank Stresses Resilience in Rebuilding Caribbean
The Caribbean is an ideal environment for decentralized treatment, with small, developing communities often in remote locations isolated from water grids. Decentralization cited as an important factor in new generation of infrastructure In the wake of Hurricanes Irma and Maria, the World Bank held a high-level meeting on recovery and resilience in the Caribbean on October 13, 2017, at its ...
-
The The `Design for Autonomous Net-Zero Water Buildings` Project Funded By NSF
The students at the University of Miami will know firsthand the importance of rethinking the way we handle wastewater and water with a Net-Zero water treatment system on site. The project showed the viability and feasibility to take buildings off the water grid to provide water recycling and how it can be achieved without raising the cost of high quality water. The research team behind this ...
-
General methodology for using Epanet as an optimization element in evolutionary algorithms in a grid computing environment for water distribution network design
In this paper, an evolutionary algorithm, called EA-WDND, is developed to optimize water distribution network design for real instances. The evolutionary algorithm uses the Epanet Solver which, while not an optimizer, helps to evaluate the operational constraints of mass conservation, energy conservation, pressure in nodes (nodal heads) of the network, and velocities of water in network ...
-
A GIS-supported 3D approach for flood risk assessment of the Qu'Appelle River, Southern Saskatchewan
This research introduces a hybrid approach for flood risk assessment through GIS. The developed approach is based on the integration of hydraulic simulation and GIS analysis, which allows spatial-based visualisation and prediction of flood disaster. In particular, the Hydraulic Engineering Center River Analysis System (HEC-RAS) model is employed to simulate multi-scenario flood cases within a ...
-
World‐wide estimation of river concentrations of any chemical originating from sewage treatment plants using dilution factors
Dilution factors (DFs) are a critical component in estimating concentrations of “down‐the‐drain” chemicals (e.g. pharmaceuticals) in rivers. The present study estimated the temporal and spatial variability of DFs around the world using geographically referenced datasets at 0.5° × 0.5° resolution. The domestic wastewater effluents were derived from national per capita domestic water use ...
-
Study Finds Carcinogens in CA Drinking Water
By studying water contaminants in groups, researchers assessed cancer risks over lifetimes A study of contaminant groups in 2,737 public water systems in California found that the Golden State’s drinking water may cause negative health outcomes. The Environmental Working Group (EWG) study, published in the journal Environmental Health, found that concentrations of contaminants in ...
-
Study Identifies Arsenic Strategies for Bangladesh
Naturally occurring poison in groundwater is causing public health crisis The nation of Bangladesh, on the Bay of Bengal between Myanmar and India, is not quite the size of Iowa, but it has developed a continent-sized arsenic contamination problem. Because of the nation’s coastal topography, the toxic metalloid occurs naturally in the groundwater that Bangladeshis depend on, and the ...
-
Technical and economic evaluation of an off-grid solar desalination system in Myanmar
Myanmar is a unique country where the majority of the people live in rural areas, away from grid electricity and reliable water supplies. The penetration of grid electricity in rural areas is minimal and even then it is often erratic. This paper focuses on the challenges of transitioning from an electricity-poor country to a renewable energy based-economy augmented with photovoltaics (PV). ...
-
Got Modbus? Then get instant access to the Internet of Things
If your product or equipment already has Modbus, then the NanoULTRA from Caption Data gives you the immediate ability to join them to the Internet of Things. From single units to 1000’s of units, with on line & real time control through the CDL SmartHub We have clients around the world using the NanoULTRA to manage products with Modbus and increase value, for example: A Leading ...
-
Water and energy futures for Melbourne: implications of land use, water use, and water supply strategy
This paper quantifies the effect of three policy levels on the water and energy futures of Melbourne, Australia. During a time of severe water shortages attributed to climate change, water strategies lacked consideration of energy consequences. Modeling, guided by urban metabolism theory, demonstrated that a compact urban form, reduced water consumption by 90 GL/a, compared with a sprawling ...
-
Four free surface algorithms for the 3D Navier–Stokes equations
Four algorithms are described for computing a steady free water surface with the solution of the three-dimensional (3D) Navier–Stokes equations. The numerical methods are used in hydraulic engineering cases, typically spillways and river modelling. The algorithms were tested against a laboratory experiment of a v-shaped broad-crested weir. The complex geometry of the weir introduced ...
-
Study Correlates Radon and Fracking
While some researchers implicate Marcellus Shale fracking for increased levels of radon in parts of Pennsylvania, others point to factors including soil moisture levels and improved home insulation. As researchers debate causes of increased radon level, residents must find ways to deal with it Radon is an odorless, tasteless, naturally occurring radioactive gas that forms from the decay of ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you