Groundwater Treatment - Remediation

Environmental Remediation Applications & Case Studies

There are numerous areas where groundwater has been contaminated with organics and metals from various industrial operations which must be remediated. Prior to water being returned to the environment, the water must be filtered and the clean water separated from contaminating elements. An activated carbon filter system such as an adsorber or vessels filled with granular activated carbon is a very effective and efficient way to treat ground water.

TIGG has the experience and the technologies which can be used in groundwater treatment to remove these compounds as well as suspended solids.

TIGG can provide the activated carbon equipment and media, which will produce an effluent that meets the client's treatment objectives.

Groundwater Treatment - Groundwater Remediation | Case Studies

TIGG Provides Remediation Rental Success:

When an experienced environmental remediation company secured a contract to clean up a former manufactured gas plant in a New York community, the contractor realized the environmental remediation process would require a host of different technologies to address contaminated soil as well as ground and surface water.

TIGG Corporation was called upon to provide a solution for treating the contact water because of its ability to meet the company’s requirements of reasonable pricing, immediate rental equipment availability and technical expertise.

TIGG helped rescue the project, which initially employed one of its competitors, who provided inadequate engineering and a solution that was not meeting treatment objectives.

“With the goal of removing contaminants from groundwater in an area near a shopping center, we worked with the remediation contractor to help ensure the safety of the public,” said TIGG Director of Project Engineering Jeff Iman. “We delivered an idea and the apparatus to implement it in a little over three weeks.”

Initially, TIGG developed a water treatment system that combined various technologies to separate oil and coal-tar residuals from the contact water. This process included gravity separators, centrifugal pumps, bag filter units and vessels containing oil-absorbent media and activated carbon.

However, it was soon discovered that cyanide was prevalent in the water. The remediation contractor suggested that iron coprecipitation be used to treat the water and remove the substance. Prior to implementing this plan, the contractor asked TIGG to confirm the treatment process in the laboratory.

After meticulously bench-testing different treatment methods, TIGG identified an anion exchange resin as the best method for removing cyanide from the contact water.

Once the environmental remediation company saw the test results, TIGG incorporated a secondary bag filter skid into the plan and added two anion water filtration vessels. This additional equipment safely removed the cyanide from the water.

As part of its overall service agreement with the environmental remediation contractor, TIGG exchanged spent media with fresh media in the filtration vessels, while offering continuous technical support on the overall process.

“Thanks to our bench testing and ability to integrate various technologies to meet changing needs, the project was executed in a timely and effective manner,” said Iman. “The end result was clean water ready to be introduced back into the local ecosystem.”

TIGG Groundwater Treatment System		Groundwater Treatment Remediation at the Newark Airport: When the Port Authority of New York and New Jersey was required to treat groundwater containing jet fuel at the Newark Airport, they contracted with Compass Environmental of Chicago, IL to provide and operate a pump and treat system. Compass in turn selected TIGG Corporation as its subcontractor to design and supply a groundwater treatment system enclosed in a heated, insulated trailer so that it could be moved to other locations, as needed. The 25 gpm treatment system had to meet the NJ Effluent ‘Standard for Site Remediation Projects’ and be operable during the winter months without freezing.

Temporary 50 gpm Groundwater System		Groundwater Treatment Remediation at a Former Dry Cleaning Site in Massachusetts: A customer needed a temporary 50 gpm treatment system onsite in three week for treatment of groundwater contaminated with chlorinated hydrocarbons. TIGG Corp. was able to design, fabricate and deliver a trailer-mounted groundwater treatment system on time. The system had to be capable of removing the chlorinated hydrocarbons to ppb levels.

New Jersey Gas Station Groundwater Treatment		Groundwater Treatment Remediation at a New Jersey gas station site: Contaminated groundwater resulting from a failed underground storage tank needed to be treated. TIGG provided three custom designed vessels, each containing 2000 pounds of a special media to remove MTBE at a rate of 25 gpm. TIGG also provided the media change out, disposal and replacement services.

Groundwater Treatment Remediation System		Groundwater Treatment Remediation at a Southern U.S. airport facility: Wastewater needed to be treated to remove particulates, oil, hydrocarbons and lead. TIGG provided a system including a bag filter, a vessel containing OMC for oil removal, two vessels operating in series containing carbon for removal of hydrocarbons and drums containing a special media for removal of the lead.