small waterway Articles

  • Microbial risk assessment for recreational use of the Chicago Area Waterway System

    A microbial risk assessment was conducted to estimate the human health risks from incidental contact recreational activities such as canoeing, boating and fishing in the Chicago Area Waterway System (CAWS) receiving secondary treated, but non-disinfected, effluent from three municipal water reclamation plants. Actual concentrations of the pathogens (pathogenic E. coli [estimated], ...


    By IWA Publishing

  • Effects of hydrodynamically rough grassed waterways on dissolved reactive phosphorus loads coming from agricultural watersheds

    Received for publication October 5, 2007. A modified type of grassed waterway (GWW) with large hydrodynamic roughness has proven ability to reduce sediment load and surface runoff under conditions where best management practices on the delivering fields reduce sediment inputs that could otherwise damage the grass cover. It is unknown how such a GWW affects the loading of surface runoff with ...

  • Water governance challenges presented by nanotechnologies: tracking, identifying and quantifying nanomaterials (the ultimate disparate source) in our waterways

    Nanotechnologies are considered an enabling technology, as they enhance the functioning of a wide range of products and processes. They are increasingly appearing in consumer products, including sun creams, socks and outdoor paints, resulting in the potential for direct access of nanomaterials (NMs) into wastewater and the environment. As such, they could be considered as the ultimate ...


    By IWA Publishing

  • RCAP and small systems can be a winning team

    The environmental regulatory community continues to clean up our waterways by requiring ever smaller communities to construct and operate wastewater collection and treatment systems. Many of these systems serve less than 100 homes, making affordability and management very difficult. In Ohio, the regulatory agency, the Ohio Environmental Protection Agency (OEPA), has realized this and has ...

  • Response to Small-Scale Pollution in Ports and Harbours - Operational Guide

    Many ports, harbours and marinas are relatively poorly equipped to respond to small spills which may occur on land or on jetties or piers and pollute their channels and basins. River ports, military ports and waterways also present similar risks. Response means are often limited and the knowledge of efficient techniques to combat such pollution incidents could often be improved. This guide aims ...


    By CEDRE

  • 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

  • Even small sites must follow best practices to control erosion and runoff

    Since 1990, construction sites larger than 5 acres and municipal separate storm sewer systems (MS4s) serving populations over 100,000 have had to  abide by the rules of the Environmental Protection Agency’s (EPA) National Pollutant Discharge Elimination System (NPDES) Storm Water Program. This program was put in place to protect the country’s waterways from sedimentation buildup. ...


    By FINN Corporation

  • Small–mid scale LNG: “45 years of experience in Spain”

    In December of 1970 the first LNG “satellite” facility was commissioned in north east Spain, in a village close to the French border, inaugurating the “small scale” business in the Iberian Peninsula. Since then, more than half a million trucks have been loaded at the LNG import facilities and downloaded in hundreds of satellites LNG plants. The business model of large LNG ...


    By dmg :: events

  • Effluent polishing at STW`s Ruurlo and Wehl, The Netherlands

    At the end of 1997 STW's Ruurlo and Wehl, from Waterboard Rijn en IJssel (WRIJ), were completely renewed and expanded with an effluent polishing using Astrasand continuous filtration. This is the first time that a post treatment filtration has been applied to municipal wastewater in the Netherlands. By using this method it is possible to produce a high quality effluent, which can be discharged ...


    By Paques B.V.

  • Response of epilithic diatom assemblages to urbanization influences

    Urbanization has long been recognized to alter the hydrology, water quality and channel form of waterways. Recently, consideration of urban impacts on waterways has expanded to include assessment of the aquatic biota, generally focusing upon the macroinvertebrate fauna. This study compares the impacts of urbanization on the structure of stream benthic diatom communities in 16 first- and ...


    By Springer

  • 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

  • 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

  • Collini metal processing plant

    Introduction The submerged membrane bioreactor plant at Collini galvanic industries in the West of Austria is a fine example of process optimization in a complex industrial environment. The plant is owned and operated by Collini and is now in its 3rd year treating wastewater from a metal processing facility. It is sited in an industrial estate and discharges into a small waterway in an ...


    By Kubota Membrane

  • Finding risky areas for oil spillage after tanker accidents at Istanbul strait

    The Istanbul strait, which is a part of Turkish Strait System (TSS), is a narrow and navigationally risky waterway for ships. This risk increases daily due to oil transportation from Central Asia and Russia. In this study, four high risk areas were identified after analysing accident statistics for the strait. Then, a simulation was run for 1,000 tonnes of oil spill at each station and the ...


    By Inderscience Publishers

  • Assessment of hydraulic fish habitat condition using integrated toolkit: a case study of the Geum river basin, Republic of Korea

    Artificial changes of rivers, including construction and operation of dams, inevitably lead to physical and ecological changes throughout waterways and their floodplains. In this study, a conceptual model coupled with integrated numerical modeling is presented for hydraulic fish habitat assessment of the Geum River basin, Republic of Korea. Based on the major events which might have affected the ...


    By IWA Publishing

  • 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.

  • Working Towards Watershed Management in the City of Atlanta

    In 2002, the leadership of the City of Atlanta kicked off a comprehensive program to have the cleanest urban streams and rivers in the country within a decade, recognizing that the City’s future economic growth, jobs, affordability, and quality of life all depend on clean water. Atlanta is faced with many obstacles on the way to meeting this challenge; a few of these include: Ongoing ...

  • Estimating and Projecting Impervious Cover in the Southeastern United States

    Urban/suburban land use is the most rapidly growing land use class. Along with increased development inevitably comes increased ...

  • 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 ...

  • Stage susceptibility of Japanese medaka (Oryzias latipes) to selenomethionine and hypersaline developmental toxicity

    Anthropogenic disturbance of seleniferous soils can lead to selenium contamination of waterways. Although selenium is an essential micronutrient, bioaccumulation and maternal transfer of proteinaceous selenomethionine (SeMet) can result in embryotoxicity. Furthermore, as the climate changes, the salinity of spawning grounds in water‐restrained estuaries is increasing. While a small increase in ...


    By John Wiley & Sons, Ltd.

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