well rehabilitation Articles

  • Horizontal Well Rehabilitation at NASA Facility

    A horizontal groundwater extraction well at an active NASA facility in Louisiana was impacted by mineral scaling and bio-fouling affecting operations of the groundwater pump and the treatment system. A flow reduction of over 50% was observed. Directional Technologies, Inc. performed a series of horizontal well rehabilitation activities, that increases flow by 58%, which including mechanical ...

  • Rehabilitation techniques - Use of combination chemical for borehole rehabilitation

    Geoquip Water Solutions, in partnership with Aquabiotics Industrial and Laval Underground Systems, has been developing a borehole maintenance programme for the last ten years and their programme, which incorporates the BoreSaver ...


    By Geoquip Water Solutions

  • Integrated planning of rehabilitation strategies for sewers

    Building measures in sewer systems are increasingly driven by rehabilitation/retrofitting and adaptation needs. Aging infrastructure together with changing boundary conditions (due to climate change, land-use change, demographic change) and also changing design standards and legislation require a prospective design to preserve the functionality of urban drainage systems not only today, but also ...


    By IWA Publishing

  • Water Main / Fire Line Rehabilitation

    Problem Dirty brown water and poor water flow were the first clues that a mid-Atlantic commercial property owner had a problem. Then the owner was put on notice by the local fire department that the water supply lines were no longer meeting the required flow requirements. Four hydrants on the owner’s property were flowing between 200 to 300 gallons per minute due to heavy corrosion-induced ...


    By CuraFlo

  • Case Study - Aluto Langano Power Plant Rehabilitation

    Aluto Langano, Ethiopia – 2007 The Aluto Langano Geothermal Pilot Plant (ALGPP) is located on the Aluto volcanic complex of the Ethiopian Rift valley, close to the eastern escarpment between Lake Langano and Lake Ziway, some 200 km southeast of Addis Ababa. The Aluto volcanic complex is a young acidic system consisting of domes, lava, and pyroclastic interbeds. The geothermal field was ...

  • Rehabilitation of Hydrogen Grooving in Sulfuric Acid Line

    Around October 2001, one of the major petrochemical refineries located on the Texas Louisiana Gulf coast needed to rehabilitate 6' and 8” diameter “fresh acid” (98% sulfuric acid) lines. Such lines tend to suffer from internal gouging due to formation of hydrogen gas in voids, which are caused by turbulence at directional changes in the pipe flow such as elbows, etc. This is a natural event, ...


    By InduMar Products, Inc.

  • Strategies to assess the sustainability in the rehabilitation process – a tool for interventions in old centres

    In order to reduce the pace of new constructions, it is necessary to rethink the city and act upon the built environment taking into account the impact of the urban expansion. These interventions must be conditioned by the need to guide human activity towards the sustainability principles. This paper presents a sustainability assessment model for buildings located in old city centres which have ...


    By Inderscience Publishers

  • Trouble Shooting for Trenchless Liner Installation During Sewer Line Rehabilitation

    ABSTRACTLining is being used by the utility industry as a cost effective solution to rehabilitate utility lines. Many types of liners, such as, cured-in-place-pipe (CIPP), fold and form PVC, deformed & reformed HDPE, etc., are being used to restore structural integrity of deteriorated pipes and to reduce inflow/infiltration. Most of the lining installation is carried out without any problem, ...

  • Thermal Power - Rehabilitation of Existing Plants Industry - Pollution Prevention Guidelines

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...


    By The World Bank

  • ECSMGE CONFERENCE 2015: Managing the Clogging of Groundwater Wells

    This is the poster or summary of a paper being presented at the XVI ECSMGE  - European Conference on Soil Mechanics & Geotechnical Engineering - in Edinburgh from 13th to 17th September 2015. Groundwater wells are common to many civil engineering projects and their operational performance can play a crucial role. The wells may be part of a construction dewatering system, ...


    By Geoquip Water Solutions

  • The Investigation, Assessment and Design of a Rehabilitation Solution Following the Failure of an Asbestos Cement Force Main in Israel

    Following failure of a 50” Asbestos Cement force main in Tel Aviv, Israel, a failure analysis was undertaken to determine the cause of failure and the risk of further incidents. This identified the possibility of further catastrophic bursts of the force main. Fully structural rehabilitation was designed using a hybrid reinforced concrete and ferrocement approach in order to meet all of the ...

  • Tank Rehabilitation and Maintenance Case Study: Ware Shoals, SC - 250,000 Gallon Torus Bottom Elevated Tank

    After years of bidding one-time repaint contracts, the Town of Ware Shoals, SC found that their tank was receiving only limited "maintenance". The exterior of the tank had been overcoated multiple times, but lead primer below was still present. As the paint thickness built up, the Town discovered that they could no longer continue to add more coats of paint. As a result, the tank exterior would ...


    By Caldwell Tanks, Inc.

  • True Partnership: “It’s like pure is a true extension of our staff team—that’s what makes their relationship with WSSC work so well”

    The best relationships are built on trust and responsiveness. Collaboration between The Washington Suburban Sanitary Commission (WSSC) and Pure Technologies began in earnest nearly a decade ago, and continues today as the two partners work together as one unified team to ensure the overall health of ...


    By Pure Technologies

  • Application of the Most Recent Monitoring Systems in Hydro Power Plants

    Abstract The paper describes main reasons for refurbishment of hydro power plants and summarizes the most frequent works during refurbishment. A special attention is paid to the process of refurbishment of the electric equipment, in the first line generators and excitation systems, and integration of the most contemporary monitoring system. The paper talks about some of the methods of ...

  • Savings through shared risk and time & materials contracts

    When the City of London set out to rehabilitate two substantial problems in the sanitary sewer system, it quickly became apparent that an uncertain scope of work as well as high risk did not lend well to a standard tendered contract process. As this form of contract would have the contractor take on all the risk, the cost of the works would increase substantially. Instead, the City acted as the ...

  • Research developments in transport and the environment: Greece

    The scope of this paper was to explore the present state of the art on the issues of transport and the environment in Greece. Among the numerous studies available in Greece that are relevant to the issues of transport and the environment, a selection was made, considering studies that aimed at an amelioration/rehabilitation of the urban environment of the capital, as well as studies that were ...


    By Inderscience Publishers

  • Recovery, Recycling and Reintegration of Coke By-products and Bitumen Through Compounding With Polymers

    Abstract The manufacturing of compounds with bitumen as water proofing materials and anticorrosive protection materials of compounds with coal pitch and anthracene oil or cokeoven coal tar is considered as recommended both for the reintegration of bituminous and of the coke oven anthracene oil and coal pitch products, as well as for the performances obtained by their compounding with ...


  • Company Introduces New Pipe Repair Products

    InduMar Products, Inc., based in Houston Texas, celebrates twenty years of providing pipe repair and rehabilitation solutions to their industrial and marine customers. Well known for their versatile STOP IT® Pipe Repair System the Company also takes pride in offering custom solutions for many pipe leak, reinforcement and corrosion problems. The combination of sealant development and ...


    By InduMar Products, Inc.

  • Manhole Relining in the Keystone State

    Manhole Relining in the Keystone State Mt. Carmel (Pa.) Board of Trustees Turns to Epoxy Lining to Save Failing Structures Exerpts from Trenchless Technology Magazine, September 2005 issue Given that estimates for the total amount of sanitary sewer pipes in the United States top 500,000 miles, it is easy to understand how sometimes manholes can be overlooked. But manholes are a big ...

  • A new approach for fixing leakages in Qatalum, QAT case study

    Qatalum is the largest aluminium smelter plant ever launched in one phase and is a joint venture between Qatar Petroleum and Norsk Hydro. Its annual capacity is 585,000 metric tons of primary aluminium. Qatalum also ensures a stable supply of electricity by a 1350 MW natural gas power plant but this requires an effectively function of the cooling water system. Project description ...


    By AMEX GmbH

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