pvc pipe detection Articles

  • Leak detection by inverse transient analysis in an experimental PVC pipe system

    Leakage reduction in water supply systems and distribution networks has been an increasingly important issue in the water industry since leaks and ruptures result in major physical and economic losses. Hydraulic transient solvers can be used in the system operational diagnosis, namely for leak detection purposes, due to their capability to describe the dynamic behaviour of the systems and to ...


    By IWA Publishing

  • Leak detection by inverse transient analysis in an experimental PVC pipe system

    Leakage reduction in water supply systems and distribution networks has been an increasingly important issue in the water industry since leaks and ruptures result in major physical and economic losses. Hydraulic transient solvers can be used in the system operational diagnosis, namely for leak detection purposes, due to their capability to describe the dynamic behaviour of the systems and to ...


    By IWA Publishing

  • PVC-piping promotes growth of Ralstonia pickettii in dialysis water treatment facilities

    Biofilms forming inside dialysis water treatment systems are one of the main sources of microbiological contamination. Among the bacteria found in biofilms, Ralstonia pickettii is frequently encountered in dialysis water treatment systems and has been shown to develop extreme oligotrophic talents. In Austria, R. pickettii was exclusively detected in high numbers in dialysis ...


    By IWA Publishing

  • Quantitative pipe condition assessment with Pipe Penetrating Radar

    Abstract Pipe Penetrating Radar (PPR) is the underground in-pipe application of GPR, a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in / 450mm) non-ferrous (reinforced concrete, vitrified clay, PVC, HDPE, etc.) pipes. The key advantage of PPR is the unique ability to map pipe wall thickness and deterioration including voids ...


    By SewerVUE

  • Combined application of Pipe Penetrating Radar and LIDAR for large diameter pipe inspection

    Abstract: Pipe Penetrating Radar (PPR) is the underground in-pipe application of ground penetrating radar (GPR), a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in./450mm) non-metallic (reinforced concrete, vitrified clay, PVC, HDPE, etc.) underground pipes. Light Detection and Ranging (LIDAR) has become an accepted method for ...


    By SewerVUE

  • Completing Condition Assessments using In-pipe GPR as Pipe Penetrating Radar

    Abstract This paper describes the development of Pipe Penetrating Radar (PPR), the underground in-pipe application of GPR, a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in / 450mm) non-metallic (concrete, PVC, HDPE, etc.) underground pipes. The method uses two or more high frequency GPR antennae carried by a robot into ...


    By SewerVUE

  • Failure mechanisms and condition assessment of PVC push-fit joints in drinking water networks

    This paper presents and discusses the significant role played by joints in the failures registered in drinking water distribution networks. The three most important failure mechanisms related are presented and a procedure to detect them through the visual measurement of the gap between pipes inside a joint is proposed. The procedure is proved to be a valuable source of information on joint ...


    By IWA Publishing

  • Organic compounds migrating from plastic pipes into water

    Case studies were carried out to identify potential chemical contaminants migrating to drinking water from polyvinyl chloride (PVC) or polyethylene (PE) pipes, available on the Polish market. Analyses were carried out by gas chromatography (GC) coupled with mass spectrometry (MS). Analysis of organotin compounds in water in contact with PVC pipes from different manufacturers found variability: ...


    By IWA Publishing

  • Adenovirus, MS2 and PhiX174 interactions with drinking water biofilms developed on PVC, cement and cast iron

    Biofilms colonizing pipe surfaces of drinking water distribution systems could provide habitat and shelter for pathogenic viruses present in the water phase. This study aims (i) to develop a method to detect viral particles present in a drinking water biofilm and (ii) to study viral interactions with drinking water biofilms. A pilot scale system was used to develop drinking water biofilms on 3 ...


    By IWA Publishing

  • Applications of Pipe Penetrating Radar for Advanced Pipe Condition Assessments: the Clark Regional Wastewater District (WA) Case Study

    Abstract Pipe Penetrating Radar (PPR) is the underground in-pipe application of GPR, a non-destructive testing method that can detect defects and cavities within and outside mainline diameter non-metallic (reinforced concrete, vitrified clay, PVC, HDPE, etc.) underground pipes. The key advantage of PPR is the unique ability to map pipe wall thickness and deterioration including voids outside ...


    By SewerVUE

  • Detecting Gases: What You Can`t Smell Can Hurt You

    Walking through a drill-site area, a worker smells rotten eggs and stops tor a minute or two to assess where a gas leak might exist. Rubbing his itchv eves as he investigates further, he notices that he no longer smells the tell¬tale hydrogen sulphide odour. He does not realize that the gas has deadened his olfactory senses and unless he leaves the area within seconds, he could lose ...

  • Advanced Condition Assessments: The benefits of using Pipe Penetrating Radar

    Abstract: Pipe Penetrating Radar (PPR) is the underground in-pipe application of GPR, a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in/450 mm) nonmetallic (reinforced concrete, vitrified clay, PVC, HDPE, etc.) underground pipes. The key advantage of PPR is the unique ability to map pipe wall thickness and deterioration including ...


    By SewerVUE

  • Case study - Public-private partnership successfully tests leakwise early oil spill detection sensor in the tidal Delaware river

    Background In the summer of 2011, the Delaware River Basin Commission (DRBC) and the U.S. Geological Survey (USGS) collaborated with GE Analytical Instruments on a unique test deployment of an oil sheen sensor in the tidal Delaware River. The idea for the test deployment arose during meetings of the Delaware River and Bay Oil Spill Advisory Committee, which includes organizations and ...


    By GE Analytical Instruments

  • IPEX Guardian Double Containment Piping System ensures safe transport of untreated frac water at CAES facility - Case Study

    Ajoint venture between ACI Energy, Inc., an investment holding company, and Altela, Inc., a water desalination company, Clarion Altela Environmental Services (CAES) opened in November 2012 to recycle frac water * from the Marcellus and Utica Shale Basins, which stretch across much of Pennsylvania and Ohio. The CAES facility treats the frac water and ultimately turns it into clean distilled water ...


    By IPEX

  • Condition Assessments using Pipe Penetrating Radar: the Metro Wastewater Reclamation District - Denver, CO Harvard Gulch Interceptor Case Study

    Abstract Pipe Penetrating Radar (PPR) is the underground in-pipe application of ground penetrating radar (GPR), a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in / 450mm) non-metallic (reinforced concrete, vitrified clay, PVC, HDPE, etc.) underground pipes. The key advantage of PPR is the unique ability to map pipe wall ...


    By SewerVUE

  • Lagoon Discharge Flow Monitoring

    Open Channel Flow Monitoring without a Flume or Weir Township operators liked the Greyline AVFM 5.0 datalogger reporting system where formatted flow reports (total, minimum, maximum and average) could be downloaded automatically to a USB memory stick without carrying a laptop to the site. The Township of South Glengarry in Eastern Ontario discharges continuously from their ...


    By Greyline Instruments Inc.

  • Case study - Grand Forks wastewater authority - North Dakota, U.S.A.

    Service: SmartBall - Leak & Gas Pocket Detection Client: Grand Forks Wastewater Authority Project Date: 2008 Type of Pipeline: Force Main Diameter: 30- and 36-inch Pipe Material: PCCP and PVC Length: 46,464 Feet Pressure: Results: 6 Gas Pockets In late October 2008, the Grand Forks Wastewater Authority ...


    By Pure Technologies

  • 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

  • Bed Level Measurement

    Numerous studies and papers have been devoted to the subject of thickener design and operation to achieve specified throughput and discharge densities. Mathematical models have been developed that present methods for sizing thickeners and predicting performance under varying process conditions. The compression effect of deeper beds on dewatering performance is a recognized phenomenon. This is one ...


    By WesTech Engineering, Inc.

  • Case study - San Francisco Public Utilities Commission (SFPUC)

    Service: Sahara Leak Detection Client: San Francisco Public Utilities Commission (SFPUC) Project Date: 2004 Type of Pipelines: Transmission Mains Diameter: 42 and 54-inch Pipe Material: Cast Iron Steel Length: 1.72 miles The San Francisco Public Utilities Commission (SFPUC) provides water to 2.4 million people in San Francisco, Santa Clara, Alameda and San Mateo ...


    By Pure Technologies

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