water bore Articles

  • Drain stub bore hole cracking - Case study

    Purpose This plant service bulletin alerts customers to inspect drain line stub bore holes for radial cracking. Problem Numerous incidents have been reported of header cracking caused by water quenching the drain line stub bore hole and header ID, especially reheater headers. This problem occurs when drain lines from boiler, superheater and reheater headers of a ...


    By Dürr Megtec LLC

  • Evaluating the Vulnerability of Bored and Driven Wells in a Shallow Unconfined Aquifer

    Shallow unconfined aquifers are the only source of water for private wells in some rural areas. The Oak Openings region of Ohio is one such location. Wells are usually bored or driven in shallow aquifers and are more susceptible to contamination caused by human activities on the surface. To provide better protection for consumers developing shallow wells, local health departments have doubled the ...

  • Backreaming through rock — with AXIS Guided Boring System

    Taking on a challenge is nothing out of the ordinary for the experienced trenchless installation experts at Midwest Mole. Since its founding in 1982, the Indianapolis-based contactor has earned a reputation for installation innovation; overcoming obstacles and defying the odds. So, these trenchless pros didn’t hesitate to take on another challenge despite the recognition that they would ...


    By Vermeer

  • Preparation of three-bore hollow fiber charged nanofiltration membrane for separation of organics and salts

    Three-bore hollow fiber charged nanofiltration (NF) membrane was prepared by interfacial polymerization (IP). The results showed that the flux and rejection of NF membrane prepared in this study increased with the increasing in the operating pressure. The water flux decreased and rejection for obvious dyes increased as the solute concentration increased. The separation factor for mixture of ...


    By IWA Publishing

  • Reducing the electrical conductivity of bore well water using natural bioadsorbents and augmenting azolla growth by neem bark powder-clay sorbent

    Experiments were conducted to select suitable plant-based bioadsorbents for the reduction of the electrical conductivity (EC) of bore well water (EC 2.20 dS m−1). Twenty-seven bioadsorbents were tested against salt reduction. Amla leaves, amla stem, prosopis leaves, calotropis flower and neem bark were efficient in reducing the EC from 1.89 to 1.77, 1.73, 1.69, 1.68 and 1.63 dS m−1 ...


    By IWA Publishing

  • Saudi Arabia’s National Water Company Increases Water Storage

    In 2012 the National Water Company (NWC) of Saudi Arabia undertook the enormous project of developing 43 wells and 46 water purification stations in 27 separate locations to provide sustainable potable water systems near Riyadh. To accomplish this task in a short six-month timeframe, contractors around the world were brought in to provide the necessary pieces of infrastructure required to build ...


    By CST Industries Inc

  • Preparation and antibacterial property of PES/AgNO3 three-bore hollow fiber ultrafiltration membranes

    In this study, a three-bore polyethersulfone (PES) hollow fiber ultrafiltration (UF) membrane with antibacterial properties was prepared by phase inversion, using PES as the membrane material, N,N-dimethylacetamide (DMAC) as solvent, polyvinylpyrrolidone (PVP) and AgNO3 as additives. The silver particles were detected by X-ray photoelectron spectroscopy. The ...


    By IWA Publishing

  • Ground Water Sampling - A Workshop Summary

    Monitoring purposes have evolved in the past decade reflecting an increasing emphasis on assessment and remedial action performance over detection monitoring. The recognition of many potential contamination sources as well as the regulatory inclusion of a large number of sites in need of investigation have spurred this evolution in practice. New more efficient methods and tools for ...

  • The South Australian Safe Drinking Water Act: summary of the first year of operation

    The Safe Drinking Water Act 2011 was introduced in South Australia to provide clear direction to drinking water providers on how to achieve water safety. The Act requires drinking water providers to register with SA Health and develop a risk management plan (RMP) for their water supply that includes operational and verification monitoring plans and an incident notification and communication ...


    By IWA Publishing

  • Monitor BTEX Compounds and Fuels in Water, Using Solid Phase Microextraction and Capillary GC

    BTEX compounds, kerosene, diesel fuel, or gasoline in water or aqueous suspensions of soil can be monitored by solid phase microextraction (SPME) and capillary GC on a short, narrow bore column (15mx 0.20mm ID).   A sample can be extracted and analyzed in less than 40 minutes.   Because no solvent is required, sensitive detection id scharacteristic of SPME/GC analyses.   ...


    By MilliporeSigma

  • Humanitarian Kiosk Water Treatment- Haiti - Case Study

    Challenge A leading provider of safe drinking water to Haiti's under served communities through water kiosks had several water quality issues to deal with upon implementing their pilot program of 10 water kiosks. There was discussion of using surface water or deep well bore water, however, both were unsuitable for drinking water purposes due to microbiological and mineral ...

  • Technology for heavy oil and bitumen recovery with low water cut

    The core of the technology resides in the reduction of oil viscosity and the respective production rate increase under the condition of oil layer heating. It is known, for example, that the heating of the layer with heavy oil up to 100°C theoretically leads to a 15 to 20 times production rate increase. The technology works on the principle of controlled automated continuous pumping of highly ...


    By Inderscience Publishers

  • Water for Southern California: water resources development at the close of the century.

    INTRODUCTION In 1999, California observes the 150th year of the Gold Rush. Rather than an isolated historical event, it could be argued that the California Gold Rush never really ended, but rather that it was the first chapter in a mass migration unlike any other in history, both in scale and duration. At the founding of the Missions by Franciscan friars, Alta California was almost an ...


    By Hargis + Associates Inc

  • Uncertainty Analysis of Mound Monitoring for Recharged Water from Surface Spreading Basins

    This study has conceptually reviewed issues related to implementation of a groundwater mound monitoring well (GMMW) for monitoring recharged water from a surface spreading basin with emphasis on uncertain hydrogeological conditions. For this, we selected a recharge site in the City of Mesa, Arizona, that is characterized with near surface clay lenses of low permeability. A geostatistical ...

  • Overcoming iron bacteria problems: An Australian perspective

    Iron bacteria are becoming an increasing problem in groundwater bores and are estimated to affect about 40% of the world’s water bores with anecdotal evidence indicating that this number is steadily increasing. Iron bacteria derive energy during their metabolism through oxidising soluble ferrous iron, present in the groundwater, to its insoluble ferric form. The resultant biofilm is ...


    By Geoquip Water Solutions

  • Water quality monitoring with hydrolab MS5

    Background The Škocjan caves are a unique natural phenomenon located in south western Slovenia and are preserved as the Škocjan Caves Park under UNESCO protection. One of the most famous network of underground caves in the world, they were formed by the flow of the Reka River as it bored tunnels through the region’s limestone geology. The river first disappears underground just outside the ...


    By OTT HydroMet

  • Oil spillage

    An area of specialisation is the supply of pumping solutions based around their standard product range, but with a complete system designed to suit the end user’s specifi c requirement. Autoclude were approached by an environmentalengineering company who had to recover diesel fuel which had leaked from storage tanks and spread over a wide area. To limit the environmental damage and recover the ...

  • Traditional Groundwater Diviners/Dowsers v/s Science and technology for Groundwater Exploration- a burning problem in the world

    Throughout world including India, the Groundwater diviners/dowsers claim having the special extra ordinary powers within them by which they could find out the site, for constructing/drilling the bore / wells having best yield of groundwater with definite depth and yields. Literate and illiterate villagers & farmers are highly affected by the ground water diviners. In our country, farmers and ...

  • A New Perspective: a new way to overcome iron bacteria problems has come to America

    Published in the April edition of the Waterwell Journal, this article looks at the problems caused by iron bacteria and iron oxide in wells and boreholes and how Boresaver, a specialist range of cleaning treatments, can solve those problems. Mineral scale and bacterial slime contamination are becoming an increasing problem in groundwater bores in America. Iron bacteria and iron oxide deposits are ...


    By Geoquip Water Solutions

  • Rethinking Big Water - Is It Time For A New Approach To Municipal Water Infrastructure?

    Las Vegas has long served as a stereotype of human excess: gambling, drinking, sex, all-you-can-eat buffets. But the latest chapter is playing out away from the Strip, in the part of the valley where two decades of booming development have swelled the population to 2 million residents who rely on a dwindling water supply. Ninety percent of the southwestern U.S. city’s drinking water comes ...


    By Ceres

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