Lining Systems Articles

  • The Basics of Slope Stability Analysis for Geosynthetics

    Slope stability analysis is vital to preventing slope failures in a variety of engineering applications including landfill design, roads, dams and embankments, to name a few. Proper analysis anticipates both natural and manmade slopes and failure of foundations and retaining walls. This blog covers the necessity of slope stability analysis, how to conduct the analysis and the role of ...


    By Agru America, Inc.

  • Build your pond to last with a liquid liner

    Build a pond without providing proper sealing and you'll probably be watching your money getting washed down the drain. Pond cracks, pond holes and pond leaks can be a persistent and costly problem so heading them off before they start in the construction process is a very good idea. That means paying particular attention to lining your ...


    By Pondpro2000

  • What the Build America Bureau Means for Geosynthetics

    The Geosynthetic Materials Association anticipates higher demand for geosynthetics on the heels of the Fixing America’s Surface Transportation Act, or FAST act, and the recent addition of the Build America Bureau. The new group was created to support the $305 billion FAST Act, which provides long-term funding for U.S. infrastructure planning and ...


    By Agru America, Inc.

  • Watch your Language! Geosynthetics vs Traditional Materials

    During GeoAmericas 2016, Dr. Neil Dixon’s sustainability keynote touched upon many topics for the future of geosynthetics. While sustainability drove most of the lecture, a few of his ideas simply approached how the field positioned itself in the marketplace. He suggested, for example, moving the field away from isolating language like “versus traditional materials.” ...


    By Nilex

  • The Lighter Side of Geomembranes

    Geomembrane installations often cover substantial areas. Landfill cells pose enormous footprints. Oil and gas pits, industrial processing ponds, and wastewater containment ponds are large installations too, and each year they tend to be built a little larger. The scaling up of these facilities is not just a matter of achieving better operational economics for the ...


    By Nilex

  • Case study - Algae control in raw water reservoir Ecuador

    Before the installation of the LG Sonic e-line equipment algae grew on the surface and settle down on the liner before entering the drinking water treatment plant. To cover the 24.000 m2 of water surface, it was decided to install 3 devices.   The Challenge: Green Algae Covering the Sides of the Lagoon Located in Santa Elena’s peninsula, the 42.000 m3 raw water ...


    By LG Sonic

  • FGD Spray Headers - Case Study

    Project: FGD SPRAY HEADERS Client: U.S. coal-fired power plants General Scope: A total of fifteen spray headers for three identical absorbers and six spray headers for a larger absorber. Engineering/Procurement: Babcock Power Environmental Inc. Resin & Laminate Construction: Hetron 922 vinyl ...


    By Fibrex Corporation

  • REDmeters - Blue Paper

    REDmeters: Abstract The process of controlling and the cost of monitoring slurries in many industries are normally accomplished using various continuous mass flow systems. These types of systems usually contain a magnetic flow meter and a line density meter. There is inherent cost associated to these systems due to the inaccurate nature of these meters. Some meters on the market boast up to ...


    By REDmeters

  • Bozeman wastewater treatment plant, Crisafulli FLUMP with pond liner protection system-case study

    Paul Layton, Assistant Superintendent, City of Bozeman, MT Public Works Dept. Commenting on the Crisafulli FLUMP with Crisafulli’s Pond Liner Protection System Purchased in 2003 for Bozeman’s Wastewater Treatment Plant "I really like the remote-control aspect of the unit. We can just have an operator sitting up here on the shore, out of the sludge, operating in a very clean ...


    By SRS Crisafulli, Inc.

  • Landfill Liners Vary by Application

    It was in 1991 that the Environmental Protection Agency promulgated its Criteria for Municipal Waste Landfills that set location restrictions, design and operating standards, groundwater monitoring requirements, corrective actions, closure requirements, and more for landfills. It was these rules that mandated that landfills be lined on the sides and bottom before waste is deposited and capped on ...


    By Agru America, Inc.

  • Case study - Algae control in raw water reservoir

    Application: Raw water reservoir, Ecuador, July 2013 Description: Installation of three LG Sonic® e-line units to cover a water surface of a 24,000-m2 raw water reservoir, which is further treated in the local drinking water plant Project objective: The raw water reservoir experienced problems with algae growth. Additionally, they ...


    By LG Sonic

  • Analysis of acid transport through multi-phase epoxy mortars for wastewater structures

    The characteristics of acid migration through epoxy mortars were examined. Diffusion coefficients of typical sewer bio-metabolised acids: sulphuric, nitric, citric and oxalic acids were determined by gravimetric sorption method and fitted to the multi-phase Jacob–Jones model. Acid permeation was characterised by hindered pore diffusion with the extent being determined by the polarity of ...


    By IWA Publishing

  • Landfill Capping Systems: An Introduction to Options

    Geomembranes, predominately linear low-density polyethylene (LLDPE), have been used for landfill caps for decades. Waste Management World has noted how,” Generally they have performed extremely well but, not unexpectedly, there have been a few exceptions that have guided us in developing even better systems.” Currently, there are four commonly used options for landfill caps, each with ...


    By Agru America, Inc.

  • Innovative research program on the renewal of aging water infrastructure systems

    The needs associated with the aging water infrastructure are immense and have been estimated at more than $1 trillion over the next 20 years for water and wastewater utilities. To meet this growing need, utilities require the use of innovative technologies and procedures for managing their systems. To help meet their needs, the U.S. Environmental Protection Agency initiated a research ...


    By IWA Publishing

  • Bulk Storage and Piping Case Study

    Background: This major steel manufacturer was founded in 1900 in and established the first formal research department in the steel industry in 1910. It grew through the development of specialty steels and new technology. Among the many "firsts" was the development of continuous rolling technology. This company holds more U.S. patents than any other specialty steel company. ...


    By Mech-Chem Associates, Inc.

  • Environmental protection with Bentofix case study

    The project had been discussed for more than 40 years before the three-laned road (width 11.50m) was finally constructed in 2002. The required water protection measurement was performed in four working steps according to the planning of the designing office Misera in Freiburg: A 10cm thick sand layer was installed over the prepared subgrade A needlepunched geosynthetic clay liner ...


    By NAUE GmbH & Co.KG

  • Road Over Sensitive Groundwater Areas - Case Study

    When constructing or extending new roads, the responsible designers and contractors are increasingly faced with the task of preventing soil contamination. Therefore, measures for the protection of the groundwater are necessary in more and more cases. The corresponding requirements and specifications for such measurements are regulated in the "guide-line for constructional measurements of roads in ...


    By NAUE GmbH & Co.KG

  • DHL logistics campus ground water protection case study

    When the massive logistics campus in Unna begins operations in the near future, it will change the face of the region. Approx. 350 people will be working in the massive 90,000 square meter hall helping two million pallets annually get to their proper destination. The facility requires proper safeguards especially with regards to chemical materials. The leading international logistics company DHL ...


    By NAUE GmbH & Co.KG

  • Federal motorway A6 Mannheim-Heilbronn case study

    Stable RiStWag -construction guidelines for roadways in water preservation areas Included in the A6 federal motorway construction project lot Mannheim – Heilbronn/Weinsberg, AS Bad Rappenau – AS Neckarsulm is the widening of km 631+640 and km 641+060 to six lanes. This section is runs through a water preservation zone, type IIIa, protected under RiStWag. Because of this, a ...


    By NAUE GmbH & Co.KG

  • Construction of a road tunnel on the Autobahn A38 case study

    Umbrella lining with Carbfol Today's modern traffic tunnels are increasingly being planned with a projected functionality for over 100 years – despite difficult geological and engineering conditions. The overriding objective of tunnel construction is the protection against the effects of groundwater and penetrating water. The local conditions at the highway tunnel construction site on ...


    By NAUE GmbH & Co.KG

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