pipe blockage Articles

  • Research of the performance of pulse electrohydrodynamics in blockage removal

    In line with contemporary trends and seeking to develop new methods and technologies, a new, original technology was explored and designed based on a non-conventional process of electrical pulse discharge in a water chamber, referred to as ‘Pulse Electrohydrodynamic Technology’ (PELHYDT). The application of the PELHYDT in sewer blockage removal is presented in this paper. Existing machinery can ...


    By IWA Publishing

  • Rapid detection of sewer defects and blockages using acoustic-based instrumentation

    Sewer flooding incidents in the UK are being increasingly associated with the presence of blockages. Blockages are difficult to deal with as although there are locations where they are more likely to occur, they do occur intermittently. In order to manage sewer blockage pro-actively sewer managers need to be able to identify the location of blockages promptly. Traditional closed-circuit ...


    By IWA Publishing

  • A stochastic approach for extended partial blockage detection in viscoelastic pipelines: numerical and laboratory experiments

    Partial blockages in water pipe networks may contribute to large energy dissipation throughout the system and reduce service effectiveness for customers. In this paper, a recently developed stochastic model using transients for detecting partial blockages in water pipelines is tested and numerical and experimental case studies are presented. The model is a stochastic successive linear estimator ...


    By IWA Publishing

  • Diagnosis of pipe systems by the SLE: first results

    In this study, an algorithm is presented for pipe system diagnosis. The algorithm is the Successive Linear Estimator (SLE) previously used in groundwater hydrology to estimate the hydraulic proprieties of soils. The SLE is an iterative cokriging-like technique which provides statistically the best unbiased estimates and quantifies the associated uncertainty. In this paper the algorithm has been ...


    By IWA Publishing

  • Perforation of ABS pipes by boring bivalve Martesia striata: a case study

    Acrylonitrile butadiene styrene (ABS) pipes are considered to be immune for boring organisms. However, inspection of the o0shore cooling water conduits of Lumut combined cycle power plant, Malaysia show that ABS pipes may not necessarily be immune for wood boring pholads, Martesia striata. M. striata caused heavy damage by drilling holes in ABS pipes used (about 5 years) for transportation of ...


    By Aquator B.V.

  • Combined Sanitary Sewer Overflows (SSO) - Performance Focus: Fats, Oil and Grease (FOG) Reductio Case Study

    In-PIpe Technology Company, Inc., drastically accelerates the natural degradation of fats, oil and grease (FOG) in the collection system, thereby removing blockages and occlusions from the pipe and significantly reducing the occurrence of FOG-related sewer overflows, as well as the requisite equipment and manpower required for the physical removal of these blockages. Since In-Pipe started ...

  • The efficiency of asset management strategies to reduce urban flood risk

    In this study, three asset management strategies were compared with respect to their efficiency to reduce flood risk. Data from call centres at two municipalities were used to quantify urban flood risks associated with three causes of urban flooding: gully pot blockage, sewer pipe blockage and sewer overloading. The efficiency of three flood reduction strategies was assessed based on their effect ...


    By IWA Publishing

  • Multiple-fault detection in water pipelines using transient-based time-frequency analysis

    Pipe faults, such as leakage and blockage, commonly exist in water pipeline systems. It is essential to identify and fix these failures appropriately in order to reduce the risk of water pollution and enhance the security of water supply. Recently, transient-based detection methods have been developed for their advantages of non-intrusion, efficiency and economics compared to traditional ...


    By IWA Publishing

  • Dam Inspection: A Day at Still Creek Dam

    We’ve been busy lately visiting various municipalities, police forces, aquaculture sites, and water treatment plants showcasing both our portable ROV systems and our new product line, the DT340 Pipe Crawler. One project in particular, took place at the Still Creek Dam in Tamaqua, PA. Cody and Sam packed up the crawler and headed down ...


    By Deep Trekker Inc.

  • Water on Floor Resolved

    THE TRUE COST OF A FLOOD Everybody knows commercial ...


    By Cleveland Biotech Ltd.

  • Prioritising sewerage maintenance using inferred sewer age: a case study for Edinburgh

    The reported research project focuses on using a database which contains details of customer contacts and CCTV data for a key Scottish catchment to construct a GIS based sewer condition model. Given the nature of the asset registry, a key research challenge was estimating the age of individual lengths of pipe. Within this context, asset age was inferred using the estimated age of surface ...


    By IWA Publishing

  • Leaking Refrigerators - Sorted

    FridgeFree has been proven to eliminate the problem of leaking refrigerators by eradicating the gel that blocks the drain pipes leading to the floods. The natural solution to refrigerator gel blockages; improving customer experience and revenue protection. Features: Discretely installed on the affected drain line Disrupts the resident bacteria from producing the ...


    By Cleveland Biotech Ltd.

  • Lanes high-powered jetter relieves village flooding risk

    Lanes for Drains engineers have saved a community near Bristol from the threat of flooding by cutting tonnes of calcite from a pipe taking spring water to the River Avon. They brought in a trailer-mounted jetting unit that can deliver water at up to 15,000 PSI Ð up to twice the pressure of a conventional HPWJ machine Ð to blast the mineral deposits. Engineers at the Lanes for Drains ...


    By Water Active Ltd

  • The effect of material and flushing water type on urine scale formation

    One of the important challenges with current sanitation practices is pipe blockage in urinals caused by urine scale formation. Urinal material and flushing water type are the two most important factors affecting scale formation. This paper examines the scale formation process on different materials which are commonly used in urinal manufacturing and exposed to different urine-based aqua ...


    By IWA Publishing

  • Effective Removal of Zebra Mussels with Amiad Screen Technology

    Introduction The zebra mussel, native to the Black and Caspian Seas, has spread in the past few decades to waterways throughout the world mostly via ballast water. Zebra mussels, when non-indigenous to the environment, pose a serious threat to intakes of facilities that rely on fresh and brackish surface water. The mussel colonies obstruct the flow of water through the pipelines eventually ...

  • A mono nov packaged challenge for flour mill

    The Grade II listed building in Hampshire was taken out of service in 1993 and records show that water-powered corn milling on the site, predates the Norman Conquest. The mill even received an entry in the Domesday Book of 1086. Mono’s projects and installation team evaluated the requirements of the site and produced a design for a Mutrator packaged system which was subsequently accepted. The ...


    By NOV Mono - Mono Pumps Ltd

  • Mono is the key to york house problems

    The site, York House Holiday Park in the heart of the tiny hamlet of Balk near Thirsk, was experiencing problemswith the submersible pumps that are installed to handle the sewage and waste water from the caravan site. Solids within the waste water were blocking the submersible pumps, which meant lifting the pumps out of the sump to repair - a costly and labour intensive job. After receiving ...


    By NOV Mono - Mono Pumps Ltd

  • Mono nov helps retain the rural feel

    When designing the system, Nottingham based Control Engineers P.J. Brelsford & Son had to give careful consideration to the sensitivity of the application, located in an area of special interest, and within close proximity to the residents of the cottages. The Mono Mutrator unit comprises a Mono progressing cavity pump and a centrifugal macerator. The Mutrator issituated above a well that ...


    By NOV Mono - Mono Pumps Ltd

  • Case Study - Sewer Sensors

    Sewer Sensors Sewer sensors are offered by Solid Applied Technologies for remote level monitoring. The sesnors are ultrasonic, non-contact with no moving parts. The system is equipped with an external battery pack and can operate at a low-power-mode for long term life. The sensors are equipped with embedded GSM cellular modem and act as M2M terminals, transmitting data ...

  • The Italian Job

    Open loop systems abstract groundwater from one or more boreholes. Heat is either extracted or added by the primary refrigerant loop, and the water is returned to a separate well or body of water. The supply and return lines need to be placed far enough apart to ensure thermal recharge of the source. The key issues for open loop systems relate to borehole yields, licensing and, most importantly, ...


    By Geoquip Water Solutions

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