sediment sampling system Articles

  • Innovative approach to unforeseen site conditions – case study

    The Crater Resources Quarry 3 Remediation site was a former limestone quarry that was later used as a disposal site for Waste Ammonia Liquor (WAL) generated by the coke making facility at a steel mill. The WAL contained water, ammonia, and small amounts of various hydrocarbons formed during the coking process. Coking operations shut down by the mid 1980's and discharge into the quarry ceased. The ...

  • The water environment as a source of potentially pathogenic mycobacteria

    Nontuberculous mycobacteria (NTM) are ubiquitous organisms of a wide variety of environmental reservoirs, including natural and municipal water, soil, aerosols, protozoans, animals and humans. Several of these species are potential pathogens which affect human health. The aim of this study was to determine the occurrence of NTM in the water environment. Samples were taken from 13 water-related ...


    By IWA Publishing

  • Sinking Costs

    Today there is more pressure than ever for businesses to minimize costs and increase productivity. Companies are always looking for ways to reduce overall costs. Unfortunately, these efforts are often hampered when a company is faced with an environmental investigation. Regulatory agency requirements, such as determining the full horizontal and vertical extent of contamination in soil and/or ...


  • Grindex pumps bedrock for more trains

    Dewatering a big tunnelling project demands both reliable dewatering pumps and a well planned sedimentation system. This case study from the Swedish railway project Ådalsbanan shows a good example of this. Ådalsbanan is one of the biggest railway projects in Sweden and comprises investments of 6600 MSEK. It stretches as far as 130 kilometres, from the city of Sundsvall to the ...


    By Grindex Pumps

  • Quantifying the anthropogenic fraction of fatty alcohols in a terrestrial environment

    Fatty alcohols are naturally produced hydrocarbons present in all living organisms. They are also used in detergent and cosmetic formulations, may be sourced from either petroleum or biological materials, and are typically disposed of down the drain. This study was conducted on the Luray catchment, Virginia, USA, where sales data indicate that approximately 2 kg of fatty alcohols from detergent ...


    By John Wiley & Sons, Ltd.

  • Standard Chlorine of Delaware Remediation

    By designing a 70-foot deep barrier wall, Black & Veatch was able to cut off contaminant source areas from a creek near New Castle, Delaware. The groundwater treatment system that Black & Veatch designed prevents site contamination from reaching the underlying drinking water aquifer. The Standard Chlorine of Delaware Site is a 65 acre area including an abandoned chlorobenzene ...


    By Black & Veatch Corporation

  • Amoebae and Legionella pneumophila in saline environments

    Amoeboid protists that harbor bacterial pathogens are of significant interest as potential reservoirs of disease-causing organisms in the environment, but little is known about them in marine and other saline environments. We enriched amoeba cultures from sediments from four sites in the New England estuarine system of Mt. Hope Bay, Massachusetts and from sediments from six sites in the Great ...


    By IWA Publishing

  • Best management practices (BMPS) for discharging water from a construction site

    Having problems on your job site with regulations related to pumping water from your site? Discharge water may carry harmful compounds that can, and have affected our water quality and the ecosystem, hence the environmental agencies concerns. When pumping from dewatering systems, storm water management ponds (SWMPs), excavations or trenches, or any form of surface runoff, BMPs are needed to ...


    By Aquatech Dewatering Company

  • GIS-Based Rapid Geomorphic Assessment to Guide Sustainable River Restoration and Riverfront Redevelopment: Four Mile Run, Alexandria, Virginia

     ABSTRACT A Geographic Information System (GIS)-based geomorphic assessment was performed to quickly identify opportunities and constraints for a river restoration and riverfront redevelopment project along Four Mile Run in Alexandria, Virginia. This assessment was further used to guide channel restoration design. Components of the GIS-based geomorphic assessment included the following: ...

  • Fate kinetic coefficients and correlation models for tetrabromobisphenol A (TBBPA) in membrane bioreactors and conventional activated sludge process

    Tetrabromobisphenol A (TBBPA) is a fire retardant with endocrine disruption properties, which unfortunately has been detected in trace amounts in various environmental samples. Studies have shown that TBBPA enters the aquatic environment, sediments, soils and biota predominantly through the wastewater treatment process. The dominant contributor to the fate and transport of TBBPA in wastewater ...


    By IWA Publishing

  • Potential applications of next generation DNA sequencing of 16S rRNA gene amplicons in microbial water quality monitoring

    The applicability of next generation DNA sequencing (NGS) methods for water quality assessment has so far not been broadly investigated. This study set out to evaluate the potential of an NGS-based approach in a complex catchment with importance for drinking water abstraction. In this multi-compartment investigation, total bacterial communities in water, faeces, soil, and sediment samples were ...


    By IWA Publishing

  • Wash Water Questions and Answers

    When the subject of Wash Water Recycling comes up there are many questions that can arise. The following are a few that are frequently asked are: Will it have an odor? What will its’ clarity be? How much is recycled? The above questions seem very basic but can at times create a complex response because of ...


    By ESD Waste2Water, Inc.

  • Getting the lead out — at the faucet

    You might be surprised at where you’ll find a customer’s lead. Lead is making headlines. First, we should note that the current attention is not due to water, air or soil contamination, but from lead contamination recently found in toys and children’s jewelry made in China. This is very frightening for any parent because of the harm lead can to cause in children. How could this happen? How ...

  • Full Scale Remediation of Trichloroethene and Benzene, Toluene, Ethyl Benzene, Xylene (BTEX) in Soil Using Six Phase Soil Heating - Niagara Falls, NY - Case Study

    Contracting: Fixed Price Per Task Contaminants Treated: Trichloroethene (TCE), Benzene, Toluene, Ethyl Benzene, Xylene (BTEX) Technology Applied: Six-Phase Soil Heating (SPSH) Geology: Sediments, glacial till, bedrock Hydrology: Groundwater at 8 feet below ground surface (bgs) Hydraulic Conductivity: 3 x 10-4 cm/sec Treatment Area & Volume: 12,100 square feet & 4,480 cubic ...


    By TRS Group, Inc.

  • Water Corporation

    Introduction the Water Corporation was established under statute as a corporatized entity. The mission of the Water Corporation is to conduct a successful business providing quality water and wastewater services to customers to enhance their lifestyle and to support the future development of the State. Asset Monitoring Services was established within the Corporation to undertake data ...


    By KISTERS AG

  • How to Determine Aquatic Humic Substances

    Aquatic Humic Substances (AHS) result from the decomposition of plant and animal residues and are found in soil, sediment, and water. They are widespread in nature and are mostly comprised from naturally occurring dissolved organic matter in water. AHSs are an important component in water systems, particularly as they relate to the potential fate of chemicals in the aquatic environment. For ...


  • Bioswales reduce contaminants associated with toxicity in urban stormwater

    Contamination and toxicity associated with urban stormwater runoff are a growing concern because of the potential for receiving system impacts. California water regulators are mandating implementation of green infrastructure as part of new urban development projects to treat stormwater and increase infiltration. Parking lot bioswales are low impact development practices that promote filtering ...


    By John Wiley & Sons, Ltd.

  • Ukas accredited laboratory manages its own configurations of Matrix Gemini LIMS case study

    By working closely with Autoscribe on the upgrade of Matrix 4 to Matrix Gemini, staff at Cavendish Nuclear's environmental laboratory have become so proficient in using Gemini's one-time configuration tools that they manage and implement any updates and developments to their own system as their needs arise. Background Cavendish Nuclear's environmental laboratory is an internationally ...


    By Autoscribe Informatics

  • Temperature effects on bioremediation of PAHs and PCP contaminated South Louisiana soils: a laboratory mesocosm study

    Goal, Scope and Background. Temperature and soil moisture content are important environmental variables in bioremediation technologies.Optimizing these variables in-situ would enhance andmaintain remediation of hazardous wastes during cold winter seasons or in cold regions and may lead to reduced maintenance and/or cost. The effect of elevated temperature and soil moisture on bioremediation ...


  • The determination of total mercury in whole blood using thermal decomposition and amalgamation coupled with atomic absorption

    Mercury has long been recognized as a serious global pollutant that has a significant impact upon our ecosystem. Unlike most other pollutants, it is highly mobile, nonbiodegradable, and bio-accumulative and as a result has to be closely monitored to ensure its harmful effects on local populations are minimized. Approximately 50 tons of mercury particulates are emitted into the atmosphere every ...


    By PerkinElmer, Inc.

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