water locating Articles
-
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 ...
-
The need for Virtual Water Credits and Trading System
Understanding, sensitizing and accounting Virtual Water Trade (the embedded water flow) between locations, nations and geographies is necessary to contain future water wars. Virtual water need not be limited to agricultural output, but can also be applied to all other products and services. Across nations, all organizations, farmers and consumers should be accounted for the Virtual Water ...
-
Methodology to elaborate the bathing water profile on urban beaches, according to the requirements of the European Directive 2006/7/EC: the case of Santander beaches (Spain)
The approval of the current Bathing Water Directive (Directive 2006/7/EC) set the necessity to define the bathing water profile. The goals established in the definition of the profile are: (i) to know the processes that determine the concentration of bacteriological indicators in the aquatic environment, (ii) to obtain relationships between the cause of pollution and its effects, and (iii) to ...
-
Operational manifestations of institutional dysfunction in post-apartheid South Africa
At the centre of the water law reform process initiated by the first democratic government of the Republic of South Africa (RSA) lay the challenge of transforming away from apartheid water injustices. Reform culminated in the promulgation of new legislation, regarded internationally as ambitious and forward-thinking legislation reflective of the broad aims of integrated water resource ...
-
Green Ridge MDWCA - Tijeras, New Mexico
In 2005 AdEdge Technologies Inc. (AdEdge) was selected to implement an arsenic treatment project for the Green Ridge Community Water System located in Tijeras, New Mexico. The Green Ridge system had been without potable water for three years. Local residents each hauled from 100 to 300 gallons per week to meet their water needs. The groundwater resource in Tijeras was determined to contain ...
-
Water quality assessment of Malad Creek, Mumbai, India: an impact of sewage and tidal water
The aim of the study was to carry out water quality assessment and to identify sources responsible for deterioration of quality in the Malad creek, Mumbai, India. Creek receives sewage and wastewater from various drains and partially treated effluent from Malad and Versova treatment facilities. To assess the water quality, sampling locations were identified in the creek based on discharges of ...
-
Water quality assessment of Malad Creek, Mumbai, India: an impact of sewage and tidal water
The aim of the study was to carry out water quality assessment and to identify sources responsible for deterioration of quality in the Malad creek, Mumbai, India. Creek receives sewage and wastewater from various drains and partially treated effluent from Malad and Versova treatment facilities. To assess the water quality, sampling locations were identified in the creek based on discharges of ...
-
AGORA: Optimization of the catchment area of the 100,000 m³/day line in Bordeaux - Case Study
The objective of this study, carried out on behalf of Bordeaux Métropole, was to identify the best trade-off between exploitation and impact of the water resource located south of Bordeaux by combining a detailed analysis of field data with an optimisation approach using modelling (Marthe/Capucine). The need The Oligocene layer is a strategic resource for the supply of drinking water to ...
By BRGM
-
Risk-based prioritization of water main failure using fuzzy synthetic evaluation technique
The prioritization of water mains for renewal requires the consideration of their impact on the deterioration of water quality, in addition to their structural integrity and hydraulic capacity. The deterioration of water mains may lead to structural failure that may have grave economic impacts. This paper develops a fuzzy-based decision support system (DSS) to identify the vulnerable ...
-
Three separate water leaks located over a distance of 826m using the AQUASCAN TM2 - Case Study
Introduction Locating leaks on large diameter water mains can be very difficult due to poor sound propagation and increased distances between fittings that can be used to perform correlations from. For a correlator to highlight a potential leak each sensor must be able to receive the signal from that leak. Once a correlation is highlighted it is then down to the software and the user of the ...
By Gutermann AG
-
A satellite perspective on jökulhlaups in Greenland
Methods by remote sensing techniques were developed to locate potential jökulhlaup lakes and to assess the volume of water discharged. To locate potential jökulhlaup lakes, a time sequence of LandSat satellite imagery covering the area was investigated with spectral mapping techniques. The investigations showed how LandSat images can be used to map surface water, glacial ice, and ...
-
The role of balancing tanks in optimal design of water distribution networks
Optimisation and reliability assessment of water distribution networks are complicated processes. Most of the research focuses only on the pipes without considering other network components, such as tanks. Despite the benefits that the tanks may bring, they are usually omitted in the optimisation process or in reliability considerations. Various indices from the literature that describe network ...
-
Sustainable rural energy: traditional water wheels in Padang (PWW), Indonesia
The traditional water wheel with simple construction coupled with a basic concept of technology can be utilised as a renewable rural energy system. Water wheel is constructed from hardwood material with a diameter of 300 cm and width of 40 cm. It is built on a river using water flow to generate the movement of the wheel. The water wheel application in the area showed that it is suitable to be ...
-
Evapotranspiration Bed System for the Wastewater from Scenic and Environmentally Sensitive Areas
The Onsite Wastewater Treatment (OWT), also commonly known as Septic Tank System, is supposedly to provide adequate treatment for individual private dwellings. In reality, because of its poor efficiency and lack of sound engineering design, the OWT has become a modern façade to pollute the land and groundwater resource. The evapotranspiration ...
-
Top Tip Series: How Seagoing Barges may comply with ballast water treatment regulations
Seagoing barges can’t comply with ballast water treatment regulations…or can they? In short, the answer is yes, they can, however there are challenges. As many sea going barges are non-self propelled, there is an absence of machinery space on board. Given this, a standard retrofit installation of a ballast water treatment system is not an ...
-
European bathing water quality in 2013
Every year, millions of Europeans take advantage of the continent's wonderful selection of beaches, rivers, and lakes for a relaxing holiday or a day out. It is vitally important that they know the quality of the water they are swimming in, and that they do not jeopardize their health. The European Environment Agency (EEA) and the European Commission hope that this year's bathing water report ...
-
Impact of water volume on operating cost
Sustainable water management relies on the ability to control operating cost which relies in turn on a working knowledge of factors which can affect this ability. The impact of water volume on operating cost is investigated for water utilities using data from the International Benchmarking Network for Water and Sanitation Utilities (IBNET) online database. Econometric models are estimated for ...
-
The associated risks on water resources in Western Macedonia under climate change
This paper assesses the impacts of climate change on water resources in the Western Macedonia water district, located in northern Greece. Some critical water management issues, such as reservoir storage and water supply for agriculture and domestic use, are investigated. A conceptual water balance model was calibrated using monthly historical hydrometeorological data. The proposed model was ...
-
Otterbourne - Drinking Water Intake - Case Study
Location: Otterbourne, Hampshire, Uk Project Date: 2007 Project: Drinking Water Intake Product: Spa Species: Salmon Smolt Otterbourne Water Treatment works is located north of Southampton in Hampshire and provides water to the east of the city. It abstracts water from the River Itchen and concern had been expressed by the Environment Agency about the potential for fish generally, and ...
-
Augmentation of surface water sources from spatially distributed rainfall in Saudi Arabia
This study investigated the rainfall patterns, spatial variability, surface runoff generation and dam requirements in the southwestern region of Saudi Arabia. The region was divided into four areas Asir, Jazan, Al-Baha and the Red Sea Coast. Surface runoff was estimated for eight scenarios considering the runoff coefficients of 0.05–0.70, resulting in 203–2,835 million cubic meters (MCM) of ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you