contaminated waterway Articles

  • Marine pollution in Australia, with special emphasis on central New South Wales estuaries and adjacent continental margin

    This paper reviews the current knowledge and environmental status of Australian estuaries and continental margins in terms of sedimentary heavy metals. Although only 2.5% of Australian estuaries and 0.1% of the adjacent continental shelf have been surveyed for sedimentary heavy metals, some of the most contaminated maritime areas in the world have been located in this country. The most ...


    By Inderscience Publishers

  • Confined disposal facilities: History and trends

    ABSTRACT Confined disposal facilities with filter layers have been used for disposal of dredged sediments for decades. Recent assessment of the environmental risk of contaminants in sediments has resulted in the use of lined confined disposal facilities. A case history outlines a contaminated sediment disposal facility designed with geosynthetics. Trends indicate more stringent requirements for ...

  • Seasonal water quality vs. flow relationships in a small regulated stream

    The relationship of a water quality constituent with respect to flow measured at a stream monitoring station can give valuable information about the watershed and in-stream processes about the constituent in question. Seasonal dependency patterns often reveal relationships which would be unnoticed if all data are treated together. The aim of this study is to examine water quality constituent ...


    By Inderscience Publishers

  • How to identify issues in water quality

    Water quality can mean different things to different people and therefore depends on what standard of quality one is looking for, for example, water may be fine for fish to live in but lack the quality required for human consumption. To measure the quality of water accurately, tests are carried out to identify several key indicators. These characteristics are then compared ...


    By Aquaread Limited

  • Activated carbon mat instrumental as part of overall remediation strategy case study

    Project: Grand Calumet River - West Branch, Reach #3 Location: Hammond, IN Products: Reactive Core Mat Background: In 2009. clean up began on a one-mile stretch of the West Branch of the Grand Calumet River. This project involved the mechanical dredging and removal of 82,000 cubic yards of sediments and soils impacted with ...

  • BNSF skykomish - Case Study

    Passive Pre-Treatment with ChitoVan Cartridges Followed by CESF with 1 % ChitoVan Cleanup of a former railway fuel and maintenance facility in Skykomish, WA is currently underway. Nearby environmentally sensitive waterways have increased the need for responsible management of contaminated waters. Two Chitosan-Enhanced Sand Filtration systems have been implemented by Clear Water Compliance ...

  • Due diligence and remedial cost estimation at a former car manufacturer

    Client: Confidential Location: Coventry, West Midlands, UK Services: Due Diligence, Remedial Cost Estimation Summary: ESI’s review and remedial cost estimation provided our client with reliable information on which to base decisions to sell on, or redevelop, a former car manufacturing site ESI was ...


    By ESI Consulting Ltd

  • Geotube Dewatering Technology is Sound Application for Remediation of Fox River Cleanup Site - Case Study

    Technology Allows Processing of Large Volumes While Retaining Impurities and Making Collection and Disposal Easier. Environmental remediation projects are often complicated, challenging—and huge. In fact, a number of remediation jobs that should be done have been delayed because there was no economical way of getting them accomplished. But that could be changing, thanks to a ...

  • Phytoremediation - I

    Introduction Phytoremediation is a process that uses plants to remove, transfer, stabilize, and destroy contaminants in soil and sediment. The mechanisms of phytoremediation include enhanced rhizosphere biodegradation, phyto-extraction (also called phyto-accumulation), phyto-degradation, and phyto-stabilization. Enhanced Rhizosphere Biodegradation Enhanced ...

  • Floating community ecological sanitation project on the Tonle Sap Lake

    Water and sanitation are some of the most pressing issues facing people in rural Cambodia, and they are even more difficult to access for people that live in floating and flood-affected communities on Cambodia’s waterways. Human development in the country is still restrained by pollution and poor health, yet there is a lack of appropriate ...


    By IWA Publishing

  • DEC offer Advanced In-situ Immobilisation and Capping Technique for Polluted Sediments

    In the July 2002 issue dedicated to environmental dredging of World Dredging Mining & Construction, DEC present its newly developed in-situ immobilisation and capping technique for polluted sediments, the 3SI-technique. DEME Environmental Contractors N.V. (DEC), a Belgium-based company specialising in remediation and recycling or disposal of water bottom sediments, is offering a vast range ...

  • What is stormwater?

    Stormwater runoff, water that isn’t absorbed into the ground after a weather event, is a potential water source that cities across the world have struggled with for decades. Why is coping with it such a challenge? Whether the precipitation is water or ice, its addition to the environment can be a problem, especially when a lot of it falls in a short amount of time. When this occurs in ...


    By Fluence Corporation

  • On‐site, serial exposure of female fathead minnows to the Elkhorn River, NE, USA spring agrichemical pulse

    In the Midwestern United States, waterways such as the Elkhorn River experience an annual spring pulse of runoff that carries sediments, nutrients and organic compounds downstream. The objective of this study was to elucidate relationships between contaminant load in Elkhorn River water and biological impacts on female fathead minnows throughout the entire spring agrichemical pulse. Fish were ...


    By John Wiley & Sons, Ltd.

  • Comparative evaluation of runoff and water quality using HSPF and SWMM

    Stormwater pollution is the untreated contaminated water that drains into natural waterways from land uses within an urban catchment. Several studies have demonstrated the deterioration of water quality in receiving bodies of water caused by stormwater runoff. The data have reported that urban runoff play primary roles in degrading water quality in adjacent aquatic systems. The accurate ...


    By IWA Publishing

  • Phytoremediation - II

    Introduction: Phytoremediation is a set of processes that uses plants to clean contamination in ground water and surface water. There are several ways plants can be used for the phytoremediation. These mechanisms include enhanced rhizosphere biodegradation, hydraulic control, phyto-degradation and phyto-volatilization. Enhanced Rhizosphere Biodegradation Enhanced ...

  • Spill prevention, control and countermeasure

    Background One of the EPA’s mandates is to prevent oil spills from polluting our nation’s navigable waterways which are defined under the Clean Water Act and Oil Pollution Act as any waterway or body of water that is used for ...

  • Oil on Water Monitoring

    Northern Ireland Water operate a number of potable water plants around Lough Erne and the River Derg, these waterways are extremely popular with tourists and are used for pleasure crafts of various sizes, from jetskis to fully fitted 6 berth cruisers. These watercraft create an ongoing risk of floating oil from poorly maintained engines, as the watercraft have access to within 10 metres of the ...


    By Partech (Electronics) Ltd.

  • Coordinating ecological risk assessment with natural resource damage assessment: A panel discussion

    Contaminated sites in the U.S. undergo remediation and restoration through regulatory programs that lead the two processes through independent but often parallel pathways with different objectives. The objective of remediation is to reduce risk to human health and the environment, whereas that of restoration is to restore injured resources and compensate the public for lost use of the services ...


    By John Wiley & Sons, Ltd.

  • Modeling the effects of point and non-point source pollution on a diversion channel from Yellow River to an artificial lake in China

    The Dragon lake diversion channel (DLDC) is the only river that recharges Dragon Lake, an artificial lake in China. This paper examines the main factors influencing water quality by investigating point source and non-point source pollutants along the main route. Based on the complicated system of rivers and desilting basins, a three-dimensional water quality model using environmental fluid ...


    By IWA Publishing

  • Excavation, Retrieval, and Off-Site Disposal

    Introduction: Contaminated material is removed and transported to permitted off-site treatment and/or disposal facilities. Some pretreatment of the contaminated media usually is required in order to meet land disposal restrictions. Confined disposal facilities (CDFs) are engineered structure enclosed by dikes and designed to retain dredged materials. A CDF may have a large cell for ...

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