water water main Articles
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Pipe-Cleaning above ID 100 mm - Case Study
Product-Lines Sewer Cleaning Cooling-Water-ducts Water-Mains Pipes made from Concrete Clay Pipes PVC Pipes HDPE-Pipes ...
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Estimated Costs to Utilities for Issuing A Boil Water Advisory
The United States Safe Drinking Water Act (SDWA) has stringent standards in place to ensure the safe distribution of water. However, water quality problems (e.g. water main breaks, elevated turbidity, microbiological non-compliance, etc.) can result in these standards not being met. The consequence of this is often a boil water advisory to inform the public that the water is unsafe to drink. ...
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Water quality – water main renewal planner (Q-WARP): development and application
The impact of deteriorating pipes on water quality (WQ) in the distribution network has not been consistently taken into account in decision making related to pipe renewals. In this paper, a detailed modeling approach based on fuzzy cognitive maps is developed using fuzzy rule-based models and fuzzy measures theory to investigate potential of WQ (physical, chemical, and biological) failure in ...
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Modelling of a roof runoff harvesting system: the use of rainwater for toilet flushing
The water balance of a four-people family rainwater harvesting system was calculated in a case study. The experimental water saving efficiency (WSE) was calculated as 87%. A simple computer model was implemented to simulate the behaviour of the rainwater harvesting system. In general, the rainwater collector volumes predicted by the daily model had shown a good correlation with the experimental ...
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Modelling the potential for water quality failures in distribution networks: framework (I)
The deterioration of water quality can adversely affect consumers' health as well as the aesthetic properties of water (taste, odour, colour). To date, little consideration has been given to the impact of deteriorating (ageing) water mains on water quality as a major decision driver for the renewal/rehabilitation of water mains. The main objective of this research was to identify major ...
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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
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Primary School in Essex gets a rainwater harvesting system
Rainwater Harvesting System for primary school The Westborough Primary School, near Southend-on-Sea, has ordered a complete rainwater harvesting system from market leader Aquaco. The system comprises of a 10,000 litre single piece underground rainwater collection tank and the Aquaco inline wire mesh leaf filter. A dual submersible pump set provides 100% standby capability. The system also ...
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Matrix express makes Water testing lab more efficient case study
Matrix Express LIMS allowed The Water Lab to improve its efficiency and provide a faster service by streamlining the processing and management of sample information. The Water Lab (www.lhewaterlab.ie/) is a modern, fully calibrated ISO17025 environmental contract laboratory based in Co. Kildare, Ireland. Providing a wide range of water and waste water testing services, including sampling and ...
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Data mining techniques for water ecotoxicity classification for application on water resources management
Among the various forms of action that promote sustainability, technological innovation can be considered one of the most important. This paper applied data mining techniques to discover knowledge in the field of water quality monitoring data, providing useful and relevant support for decision-making in environmental management systems. At the current stage of research, a predictive modelling ...
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Robert Bosch Electronik GmbH Salzgitter Germany - Case Study
OVERVIEW, WATER SYSTEM CHALLENGES There are 2 main water supply goes into 11 buildings of the factory with annual consumption of about 40,000m3. Until recent, attempts were made to treat the water chemically against corrosion and scale. The water boilers had to be cleaned (with ordinary descaler) on regular intervals. Parts of the sanitary fittings had to be constantly replaced by maintenance ...
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Supervised committee machine with artificial intelligence for prediction of fluoride concentration
The study introduces a supervised committee machine with artificial intelligence (SCMAI) method to predict fluoride in ground water of Maku, Iran. Ground water is the main source of drinking water for the area. Management of fluoride anomaly needs better prediction of fluoride concentration. However, the complex hydrogeological characteristics cause difficulties to accurately predict fluoride ...
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Seawater desalination utilising waste heat by low-temperature evaporation
Utilisation of waste heat is one of the ecofriendly ways to produce low-cost desalted water. Keeping this in mind, Low-Temperature Evaporation (LTE) desalination technology utilising low-quality waste heat in the form of hot water (as low as 50?C) or low-pressure steam (0.13 bar) has been developed to produce high-purity water (conductivity Keywords: LTE desalination, low temperature evaporation, ...
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Natural Disaster Recovery & Drinking Water
Clean water is one of the fundamental pillars of modern civilization, and a major priority for local and municipal government. When disaster – hurricanes, tornadoes, earthquakes – strikes, one of the first priorities is to rehabilitate water treatment and distribution systems. Water main and pipe breaks, pressure loss, and backflow can all act to introduce external contamination ...
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Life-cycle assessment of common water main materials in water distribution networks
This paper examines the economy-wide environmental impacts linked to the manufacturing of PVC and ductile iron (DI) pipes, steel tanks, and to the generation of electricity for pumping in water distribution network optimization. The non-dominated sorting genetic algorithm (NSGA-II) is used to generate Pareto-optimal solutions of the benchmark ‘Anytown’ network expansion problem. Selected ...
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Effective dose owing to dissolved 222Rn in potable water of coastal Karnataka in the southwest coast of India
This paper discusses the results of the systematic measurement of activity concentration of 222Rn in groundwater and surface water samples of two major rivers of coastal Karnataka, namely, Kali and Sharavathi. Water radon concentrations were measured using an Alpha Guard PQ2000Pro (Genitron GmbH) equipped with an appropriate unit (AquaKIT), following a protocol proposed by the manufacturer. ...
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Successful Isolation of 48” Water Main and Backflow Prevention
Salem, OR When they contacted Hydra-Stop, the primary need for the City of Salem was replacing a section of the existing water mains that were aging and put the City’s water supply at risk. In order to do this they had to isolate the water main from the City’s water system. This 48” line had been in the ground for fifty years. There were significant concerns about the integrity of the pipe and ...
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Opportunities for public water utilities in the market of energy from water
An inventory is made of the possibilities to recover sustainable energy from the water cycle by identifying different water flows in a municipal environment as a sustainable energy source. It is discussed what role public water utilities should play in the market of energy from water. This is done for Waternet, the public water utility of Amsterdam, by describing experiences on two practical ...
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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 ...
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Safety of packaged water distribution limited by household recontamination in rural Cambodia
Packaged water treatment schemes represent a growing model for providing safer water in low-income settings, yet post-distribution recontamination of treated water may limit this approach. This study evaluates drinking water quality and household water handling practices in a floating village in Tonlé Sap Lake, Cambodia, through a pilot cross-sectional study of 108 households, ...
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Water-reuse risk assessment program (WRAP): a refinery case study
The key approach to manage and prevent potential hazards arising from specific contaminants in water networks is to consider water as the main product delivered. This new concept, addressed as water-reuse risk assessment program (WRAP), has been further developed from hazard analysis of critical control points (HACCP) to illustrate the potential hazards which are the roots of hindering ...
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