Groundwater Development Organization Articles

Groundwater Remediation

Groundwater remediation or clean-up is required when concentrations of contaminants exceed or are expected to exceed predetermined levels for the type of resource that is impacted (Grossman et.al., 2008). For example, lead levels in drinking water should not exceed the EPA action level of 0.015 mg/L. What caused the high levels of lead? How can the lead be removed from the aquifer? (Grossman ...

Jul. 23, 2011

By IWA Publishing

Technology for treatment of groundwater simultaneously containing iron, manganese, ammonium and organic matter

The groundwater used as drinking water often contains unacceptable amounts of iron and manganese compounds and ammonium ions. These substances are efficiently removed using conventional technologies (aeration and filtration through granular media filters). However, the efficiency is drastically reduced for water containing considerable amounts of organic matter, which usually enters the water ...

Oct. 20, 2017

By IWA Publishing

Development of adsorbent for the simultaneous removal of organic and inorganic contaminants from aqueous solution

In this study, a modified adsorbent, alginate complex beads, was prepared and applied to the removal of mixed contaminants from wastewater. The alginate complex beads were generated by the immobilization of powdered activated carbon and synthetic zeolites onto alginate gel beads, which were then dried at 110 °C for 20 h until the diameter had been reduced to 1 mm. This dry technique increased the ...

Jan. 1, 2011

By IWA Publishing

Who Owns Groundwater?

California’s drought underscores the need to improve how the state - and the rest of us - divvy up a resource in demand. Grapevines march across wires strung along rolling hills, their little trunks improbably supporting heavy black fruit. Cindy Steinbeck’s family has been farming this land since 1920. They grow Zinfandel, Viognier, Cabernet, Merlot, and Petite Syrah grapes but are ...

Aug. 28, 2014

By Ensia

Shimadzu Guide to US EPA Method 8260 for analysis of volatile organic compounds in groundwater and solid waste

Environmental contamination has been at the forefront of government policy and regulation since the US EPA was established in 1970. Over the years the US EPA has developed, published, and updated multiple methods for analysis of environmental pollutants, and single-quadrupole gas chromatography-mass spectrometry (GC/MS) has long been the technique of choice for determination of volatile ...

Jul. 1, 2015

By Shimadzu Scientific Instruments Inc

Conducted demonstration projects for bioremediation technologies treating chlorinated organic constituents in the groundwater and soil at Dover Air Force Base

LOCATION: Dover, DelawarePROJECT DATE: July, 1996 to July, 1999CLIENT: The Remediation Technology Development Forum and Dover AFB BACKGROUND: The Remediation Technology Development Forum (RTDF) for Bioremediation of Chlorinated Solvents Work Group has conducted demonstration projects for bioremediation technologies treating chlorinated organic constituents in the groundwater and ...

Dec. 22, 2008

By Terra Systems, Inc. (TSI)

Going organic for the climate

Also in the world of climate change, organic is the way to go. I am not writing about organic food here, despite my personal interest in the topic, but about peatlands, which are soils with a substantial layer of organic matter at or near the surface. Well, they are the way to go for the climate as long as you treat them well. If not, they become a vigorous source of greenhouse gas emissions. ...

Dec. 23, 2014

By Wetlands International

New Spanish regulation on groundwater protection

On 22 October it was issued Royal Decree 1514/2009 regulating the protection of groundwater against pollution and deterioration. The legal framework of this Royal Decree is formed by Directive 2000/60/EC (WFD) in particular Article 17, and Directive 20006/118/EC. The main objectives are to prevent or limit groundwater pollution and to establish criteria and procedures to assess their chemical ...

Jan. 7, 2010

By MediTerra Environmental Consultants, S.L.

Case study - Chlorinated groundwater treatment

Problem A Fortune 50 company implemented a remedial project to collect and treat polluted groundwater from a site in Central New York, preventing the mitigation of impacted groundwater from flowing into local waterways. An engineering and construction firm was hired to design and build an effective, efficient groundwater treatment system. Collection of the polluted water would be done ...

Dec. 1, 2007

By Anguil Environmental Systems, Inc.

Why it’s time to elevate groundwater

Groundwater stored in the earth’s crust underpins all our lives – the ultimate source of freshwater for billions has become victim of over-extraction and the ultimate sink for pollutants. For too long, not enough has been done to regulate the use of this precious, on-demand resource and manage disposal of waste. If rates of groundwater depletion have tripled in the past 3 ...

Apr. 9, 2015

By The World Bank

Case study - Chlorinated groundwater treatment

Overview A Fortune 50 company implemented a remedial project to collect and treat polluted groundwater from a site in Central New York, preventing the mitigation of impacted groundwater from flowing into local waterways. An engineering and construction firm was hired to design and build an effective, efficient groundwater treatment system. Collection of the polluted water would be ...

Dec. 7, 2011

By Anguil Environmental Systems, Inc.

Groundwater Monitoring with the Waterra Inertial Pump

Untitled Document ...

Jan. 1, 1995

By Waterra USA Inc.

Stevens Enhances Groundwater Remediation Effectiveness

The Stevens HydraProbe is now being used to monitor the progress of a new groundwater pollution clean up method called phytoremediation. Phytoremediation is the method by which trees are used to pull contamination out of groundwater. Remediation of contaminated aquifers can take many years to complete. The ...

Mar. 15, 2017

By Stevens Water Monitoring Systems, Inc.

Mathematical model predicting arsenic bioleaching in groundwater treatment

In the Southeast Asia region, arsenic contamination of groundwater has been reported in several countries and a large number of arsenic treatment units were installed in many regions. Microbial activity can greatly affect the mobilization of arsenic under anaerobic conditions when coupled with the oxidation of organic matter. In this study, a mathematical model was developed to predict the ...

Dec. 16, 2012

By IWA Publishing

Baseline groundwater quality in unconventional oil and gas fields

In recent years, expansion of unconventional oil and gas production has prompted significant interest in potential impacts on drinking water resources. In many cases, water quality investigations rely on access to landowner water wells to develop baseline data prior to drilling; respond to spills, complaints, or incidents; or evaluate potential impacts due to drilling, completion, hydraulic ...

Jun. 11, 2015

By IWA Publishing

Demonstration of Resin Adsorption Techology for Treatment of VOCs in Groundwater

Untitled Document ABSTRACT Aberdeen Proving Ground (APG) has been a center for the development, testing, and manufacture of military-related chemicals since World War I, ...

Feb. 10, 2004

By Weston Solutions, Inc

Rainfall changes blamed for India’s groundwater depletion

Changes in rainfall may be responsible for reducing groundwater storage in India more than withdrawals for agricultural irrigation, according to a recently published analysis. Overextraction has long been thought to be responsible for declines in groundwater, but the researchers found less rainfall to be a more important factor. They believe it’s the result of higher temperatures in the ...

Apr. 3, 2017

By Fluence Corporation

Developing optimum solutions to flooding

Developing optimum solutions to flooding With a very long period of wet weather in the summer overlaid by intense rainfall, 2007 was the wettest summer in the UK on record. This unusual weather pattern resulted in very high localised runoff, with three events in England exceeding the 1 in 100 year return period over that time – some of the worst flooding that has ever occurred in ...

Jul. 12, 2010

By Innovyze

Carbon offsets from organic waste conversion projects

The Climate Act ion Reserve (the Reserve) has long had a protocol to give credit for the capture and destruction of methane emissions from organic waste in landfills, but they have now opened up the possibility of credits for projects that prevent that waste from entering landfills in the first place. In October 2009, the Reserve adopted the Organic Waste Digestion Project Protocol, covering both ...

Mar. 1, 2010

By Waste Advantage Magazine

Groundwater monitoring and assessment with ESdat environmental data management software and its use in groundwater remediation plans

Groundwater investigations, contaminated/industrial sites, landfill and regulatory compliance are all ideal areas for environmental consultants and site managers, specializing in groundwater monitoring and assessment, to use environmental data management software. A successful groundwater ...

Aug. 24, 2012

By Esdat Environmental Data Software

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