Contaminated Site Articles | Environmental XPRT

Case Study - Mop Water Recycling

SCOPE: This Florida manufacturer of gears and transmission components generates 70 – 100 gallons per day of wastewater from their floor scrubber and mop buckets. The wastewater contains metal chips, dirt, coolant and oil from cleaning the plant floors, so the material is too contaminated to responsibly discharge it to the ...

May 29, 2018

By Separation Dynamics

Innovations in the Remediation of Contaminated Sites

Discussion of the EPA publication completed North American Innovative Technology Demonstration Projects; share the information from this new document which is now available in an online. Mention some of the ongoing and completed field demonstrations of innovative remediation technologies sponsored by EPA and other government agencies such as DOD, NPS, USFS, and BIA. The remediation ...

Sep. 11, 2012

Ask the Expert: Oil Analysis in Power Generation

Uptime is one of the key considerations for all power generators. Electricity supply must equal demand at all times. Downtime, especially unplanned downtime, is very difficult to deal with and can be quite costly. Fortunately condition based monitoring can go a long way towards preventing unscheduled downtime and achieving ...

May 30, 2018

By Spectro Scientific

Fast bioremediation of a hydrocarbon contaminated site

The use of bioremediation has been demonstrated to be a very effective treatment technology for a hydrocarbon contaminated site within a month of starting. In addition to selection and preparation of an appropriate microbial inoculum the other key considerations were effective mixing, addition of suitable nutrients and maintenance of soil moisture levels. Careful management of all these ...

Mar. 30, 2010

By Biofuture Ltd

Accelerating progress at contaminated sediment sites

The “top five actions” presented by Bridges et al. in “Accelerating Progress at Contaminated Sediment Sites: Moving from Guidance to Practice” (IEAM 8(2):331‐338) represent an important set of normative guidelines that could accelerate progress at contaminated sediment sites. An important next step is to use those guidelines to develop recommendations about good practices. This letter presents ...

Jun. 21, 2012

By John Wiley & Sons, Ltd.

Contaminated land site investigation in Bristol

Client: Property Developer Location: Bristol, UK Services: Contaminated Land Risk Assessment, Human Health Risk Assessment, Controlled Waters and Ecological Risk Assessment. Summary: ESI’s contaminated land assessment ensured that this former brickworks site was not registered as contaminated land under Part 2A of ...

Oct. 7, 2011

By ESI Consulting Ltd

One of Europe’s most contaminated sites

VSD Avenue, a joint venture partnership between VolkerStevin, DEC and Sita Remediation, started work at the beginning of September on the remediation of the former Avenue Coking Works in Chesterfield; one of the most heavily contaminated sites in Europe. Guy Pomphrey, chairman of VSD Avenue, explains The £82m contract, signed in July, was commissioned by the client and site owner the East ...

Oct. 28, 2009

Who will do the Cleanup? (Contaminated Sites Report 2007)

To better understand Canada’s current capacity to meet this unique labour demand, ECO Canada undertook this study in early 2006. Our work was guided by a 29-member National Steering Committee from government, industry, and academia. In addition, a full-day National Forum on Contaminated Sites was held in Vancouver on March 28, 2006 to gain support and gather comments on the project from ...

Jan. 1, 1

By ECO Canada

Quantitative risk assessment for contaminated sites in Spain

Environmental Quantitative Risk Assessment is one of the key factors in the Decision Making Process for contaminated sites. Numerous decisions have to be made before, during and after conducting a quantitative risk assessment.Risk assessment is based on the information gathered previously: Historical information (Phase I) Site characterization (Phase II) Toxicological ...

Oct. 10, 2008

By MediTerra Environmental Consultants, S.L.

Modeling Leachate Contamination and Remediation of Groundwater at a Landfill Site

Leachate contamination of an aquifer from a landfill sitewas simulated using the groundwater flow and transport model SUTRA developed by the U.S. Geological Survey. The model calibration was performed by spatially adjusting the hydraulic conductivity in order to capture the measured hydraulic head spatial variation and then by adjusting the dispersivity and porosity match the measured chloride ...

Mar. 21, 2005

By Springer

In-Situ Bioremediation Treats Contaminants at a Disposal Site

Site Summary A TCE-contaminated plume developed from buried drums containing organic solvents on the former Duluth Airbase. Soil excavation took place in the early 1990s and a total of 1,925 yds3 of soil were treated through land farming. A few years later, site assessment activities uncovered a VOC plume in groundwater and further monitoring revealed the breakdown of TCE to daughter products ...

Jan. 1, 2006

By Regenesis

Site 25 System Slows Down Contamination

The Air Force has installed dollar $2 million groundwater extraction and granular activated carbon system to slow down the spread of the solvent trichloroethene (TCE) groundwater contamination at Site ...

Nov. 1, 2001

By J.C. Palomar, Inc.

Risk assessment and brownfields-determining exposure to site contaminants

The USEPA’s Brownfields Program was developed to facilitate the rehabilitation of contaminated property for re-development. EPA has set forth criteria that must be met for a revitalized property to be used for residential, commercial or industrial purposes. The main thrust of these criteria is the long-term protection of residents or visitors (including shoppers and business employees). As ...

Jul. 5, 2010

By Atlantic Environmental, Inc.

NJDEP issuing remedial priority scores for contaminated sites

Very shortly, the New Jersey Department of Environmental Protection (NJDEP) will be issuing letters to responsible parties containing a draft Remedial Priority Score (RPS) for their particular site. It is unclear how the rankings will be used, but the RPS system has been described as a tool to sort sites out for further discussion. The ...

Nov. 15, 2011

By The Law Office of Christopher D. Hopkins, LLC

Contaminated Water

Treatment of Contaminated Mine Water Discharge Recent estimates have suggested that in the UK 2,500 km of streams and an area of 9,000 km2 of groundwater bodies are at risk of failure of Water Framework Directive Objectives due to mine water pollution (Jarvis & Rees 2004). For over two decades the Loughor Estuary in South Wales, which carries SSSI status, had been ...

Dec. 1, 2012

By BritishFlora

A framework for screening sites at risk from contaminants of emerging concern

Trace levels of a variety of currently unregulated organic chemicals have been detected in treated wastewater effluents and surface waters that receive treated effluents. Many of these chemicals of emerging concern (CECs) originate from pharmaceuticals and personal care products that are used widely and that frequently are transported “down the drain” to a wastewater treatment plant (WWTP). ...

Nov. 25, 2015

By John Wiley & Sons, Ltd.

Development of an on-site Fe0 system for treatment of copper- and zinc-contaminated roof runoff

The objective of the present work was to develop an on-site Fe0 system for treatment of metal-contaminated roof runoff. Breakthrough experiments were performed under laboratory flow-through conditions using runoffs that have varying water quality parameters. Phase analyses and the chemical-equilibrium model were employed for describing the removal mechanisms. ...

Sep. 26, 2011

By Inderscience Publishers

Identification of source of heavy metal contamination in a site - a case study

Accidental spills and improper disposal of industrial effluent/sludge containing heavy metals onto the open land or into subsurface result in soil and water contamination. Detailed investigations are carried out to identify the source of contamination of heavy metals in an industrial suburb near Bangalore in India. Detailed investigation of ground water and subsurface soil analysis for various ...

Apr. 9, 2013

By Inderscience Publishers

When Supply does not Meet Demand (Contaminated Sites Report 2008)

During the next few decades, federal, provincial, and municipal governments, as well as the private sector, will commit large sums of money to clean up contaminated sites across Canada. A combination of regulatory and economic drivers will keep the sector buoyant, resulting in a strong demand for labour to work on contaminated sites. Between 2004 and 2019, the federal government has committed up ...

Jan. 1, 1

By ECO Canada

Revitalizing contaminated sites: the revitalization handbook addressing liability concerns

The Small Business Liability Relief and Brownfields Revitalization Act, (“Brownfields Amendments”), Pub. L. No. 107-118, enacted in January 2002, amended the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”), to provide important liability limitations for landowners that qualify as: (1) bona fide prospective purchasers, (2) contiguous property owners, or (3) innocent ...

May 1, 2008

By US EPA - Environmental Protection Agency

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