drainage system Articles

  • Embankment drainage with Terram drainage composites

    Project Design and construction of a new 3km runway, 45m wide with 7.5m shoulders on each side, with taxiways and turning circles, main civils contract £108m; total project cost £172m. Terram Application Terram 1B1 drainage composite was used extensively (some 300,000nr) in the construction of the embankment carrying the runway over the River Bollin ...


    By Terram - a Fiberweb business

  • Dropshaft cascades in urban drainage systems

    Dropshaft cascades are typical elements of sewer systems in steep urban catchment basins. The design of a dropshaft cascade, which is generally addressed as an optimization problem, also needs to consider the subsequent effects induced on the flow by the different elements of the cascade. Experimental research has been performed at the hydraulic engineering laboratory of the University of ...


    By IWA Publishing

  • Ground drainage with Filtram

    The A11 Thetford Bypass comprises approximately 7.5km of single and double carriageway. The design called for a roadside fin drain system to act as a vertical water flow interceptor in conjunction with a horizontal under channel drainage layer incorporated within the roadbase. The combined system discharges to conventional drainage outlets. Filtram 1B1 -ED was chosen as the vertical fin drain and ...

  • Acid mine drainage treatment

    Acid mine/rock drainage is a rampant problem in the world today. The above photo depicts acid drainage at an abandoned mine in the Yukon Territory of northwest Canada. This mine shares a similar history to thousands of other mines throughout the world. It was in operation for six short years in the 1950’s, producing gold ore. Its profitability eventually failed and it was abandoned. In the ...


    By WesTech Engineering, Inc.

  • Heap leach drainage design

    Heap leach operations have gained popularity in the past around the world as a reasonable method for extracting metals such as gold, copper, and nickel from earth material. In such heap operations, however, the success of the leaching operation depends on the flow regime established by the sprinklers at the top of each lift and the drainage system at the bottom.Each lift represents a unique ...


  • City drainage in ancient China

    This paper gives an overview of the evolution of city drainage in ancient China, and analyzes the achievement of drainage of such cities as Pingliangtai in Henan province, Xibo of Shang Dynasty, Linzi, the capital of the State of Qi, Chang'an, the capital of Han and Tang Dynasties, Kaifeng, the Eastern Capital of Northern Song Dynasty, Ganzhou, Dadu, the capital of Yuan Dynasty; and Beijing, the ...


    By IWA Publishing

  • Drainage System Stabilization Project case study

    In 1997, a residential development was built upslope from this golf course drainage ditch. It began to erode, but because the ditch was filled with invasive species such as Blackberry and Reed Canary Grass, the erosion was not visible. When the non-native plants were removed to create a new golf course hole, the erosion was evident – in some places more than four feet deep, all the way ...


    By Envirolok LLC

  • A new litter trap for urban drainage systems

    ABSTRACTLitter is generated in shopping areas and is washed or blown into stormwater drainage systems. These convey the litter to open water bodies leading to the accumulation of non-biodegradable litter on the banks and beaches of urban waterways and bay foreshores. The increasing public awareness of the problem prompted the State Government of Victoria to provide funding to develop an ...


    By IWA Publishing

  • Drainage-Area Survey Data Management

    Northumbrian Water Supply of HydroLog4 time-series database and reporting system for drainage area studies Northumbrian Water ordered HydroLog4 as a replacement data management and reporting system for time-series data collected during the short and long-term survey work by internal crews throughout the water company's wastewater management business. ...

  • Modelling Sustainable Urban Drainage Structures

    Introduction “Sustainable Development” is an increasingly important concept in most industries today, and one in which the water industry has been making rapid progress for over a decade. In countries around the world, including the USA, Europe, and Australia, Sustainable Urban Drainage (SUD) structures - permeable pavements, ponds, and the like - are reducing the volumes of direct urban runoff, ...


    By Innovyze

  • ACO drainage channels form an extensive sustainable drainage system at refurbished M5 services

    At the refurbished Michaelwood Services on the M5, engineers have been able to combine the benefits of different high performance ACO Water Management drainage channels to complete an extensive sustainable drainage scheme that adds some striking visual features to the new parking areas. Installed at the services on both sides of the carriageway, the drainage systems use ACO products that provide ...


    By ACO Group

  • Combination of bespoke and standard ACO surface water drainage systems

    A series of unique, high performance channel drainage systems designed and manufactured by ACO Technic, the bespoke product development division of water management specialist ACO Technologies, has been installed across Heathrow's award winning Terminal Five. As well as helping to overcome some significant challenges posed by the site's design, the systems have played a key role in creating some ...


    By ACO Group

  • Fate of hydrocarbon pollutants in source and non-source control sustainable drainage systems

    Sustainable drainage (SuDs) is an established method for managing runoff from developments, and source control is part of accepted design philosophy. However, there are limited studies into the contribution source control makes to pollutant removal, especially for roads. This study examines organic pollutants, total petroleum hydrocarbons (TPH) and polycyclic aromatic hydrocarbons (PAHs), in ...


    By IWA Publishing

  • Impacts of climate change on rainfall extremes and urban drainage systems: a review

    A review is made of current methods for assessing future changes in urban rainfall extremes and their effects on urban drainage systems, due to anthropogenic-induced climate change. The review concludes that in spite of significant advances there are still many limitations in our understanding of how to describe precipitation patterns in a changing climate in order to design and operate urban ...


    By IWA Publishing

  • Comparison between InfoWorks hydraulic results and a physical model of an urban drainage system

    Urban drainage systems are frequently analysed using hydraulic modelling software packages such as InfoWorks CS or MIKE-Urban. The use of such modelling tools allows the evaluation of sewer capacity and the likelihood and impact of pluvial flood events. Models can also be used to plan major investments such as increasing storage capacity or the implementation of sustainable urban drainage ...


    By IWA Publishing

  • Past, present, and future design of urban drainage systems with focus on Danish experiences

    Climate change will influence the water cycle substantially, and extreme precipitation will become more frequent in many regions in the years to come. How should this fact be incorporated into design of urban drainage systems, if at all? And how important is climate change compared to other changes over time? Based on an analysis of the underlying key drivers of changes that are expected to ...


    By IWA Publishing

  • Comparative analysis of the outflow water quality of two sustainable linear drainage systems

    Three different drainage systems were built in a roadside car park located on the outskirts of Oviedo (Spain): two sustainable urban drainage systems (SUDS), a swale and a filter drain; and one conventional drainage system, a concrete ditch, which is representative of the most frequently used roadside drainage system in Spain. The concentrations of pollutants were analyzed in the outflow of all ...


    By IWA Publishing

  • Implications of climate and urban development on the design of sustainable urban drainage systems (SUDS)

    This paper explores the implications of climate change and urban development on the design of sustainable urban drainage systems (SUDS) using the example of ponds and raingardens in Auckland, New Zealand. Many of Auckland's coastal and freshwater receiving environments have been degraded due to stormwater inflows and are potentially at further risk due to continued urbanisation and ...


    By IWA Publishing

  • Local effects of global climate change on the urban drainage system of Hamburg

    The Hamburg Water Group owns and operates a sewer network with a total length of more than 5,700 km. There has been increasing attention paid to the possible impacts of predicted changes in precipitation patterns on the sewer network infrastructure. The primary objective of the work presented in this paper is an estimation of the hydraulic impacts of climate change on the Hamburg drainage ...


    By IWA Publishing

  • Decision Analysis Applications for the Sustainability of Global Urban Water Resources and Drainage Systems

    ABSTRACTWater is one of the most vital elements needed for life. In many countries water supplies, especially for critical drinking water, are either being depleted or polluted. Too often these problems are magnified due to the lack of reliable drainage systems that provide proper stormwater and sanitary sewage collection and treatment of human generated wastewater. ...

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