contaminated waterway Articles

  • In situ treatment of canal sediments case study

    The Problem Rivers and waterways have traditionally been the focus of industrial construction and commerce. Throughout the world, cities have grown and flourished on the banks of major inland waterways. Additionally, major industrial development has focused on these same inland waterways. These waterways provided and continue to provide a cost effective transportation system for ...


    By Nordevco Associates Ltd.

  • Analysis of wastewater for metals using ICP-OES

    The analysis of wastewater for trace metal contamination is an important step in ensuring human and environmental health. Wastewater is regulated differently in different countries, but the goal is to minimize the pollution introduced into natural waterways. In the U.S., the Environmental Protection Agency (EPA), in conjunction with the states, negotiates a discharge permit through the National ...


    By PerkinElmer, Inc.

  • 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 ...

  • 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 ...


    By CETCO

  • Scavenger 2000 Decontamination Vessel - Scavenger 2000 Operations Report

    It has been a pleasure for us to clean and help rejuvenate the City of Miami Waterways and Miami River for the past several years. Our objective is to help clean the waters of the world. These are the results for the operation of the Scavenger2000 Decontamination Vessel performed on the City of Miami and Miami-Dade County waterways for the period of last five years. Please see below a ...


    By EcoJump LLC

  • 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

  • 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

  • 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

  • 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

  • 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 ...


    By CETCO

  • 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

  • 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

  • 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 ...

  • 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.

  • 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

  • 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.

  • Geotube Dewatering Technology Used To Alleviate Acid Runoff Problem from Mine Tailings - Case Study

    Construction on 1-99 in Pennsylvania unearths pyretic rock; Geotube units used to contain minerals that could contaminate groundwater. Many states are faced with the problem of dealing with tailings and residues from mining, road building, and other sources that pose a threat to groundwater. Residues can come from both old inventories of stockpiled material, as well as those materials ...

  • 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 ...

  • 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 ...

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