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IMPROVING THE TREATMENT OF CONTAMINATED AQUIFERS BYDEVELOPING DIRECT-PUSH OXIDANT CANDLES WITH PNEUMATIC CIRCULATORS

Award Information
Agency: Department of Health and Human Services
Branch: National Institutes of Health
Contract: 2R42ES022530-02
Agency Tracking Number: R42ES022530
Amount: $1,057,463.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: NIEHS
Solicitation Number: PA14-072
Timeline
Solicitation Year: 2015
Award Year: 2015
Award Start Date (Proposal Award Date): 2015-09-30
Award End Date (Contract End Date): 2017-09-29
Small Business Information
1421 SW 36TH STREET
Lincoln, NE 68522-9136
United States
DUNS: 078421586
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 MARK CHRISTENSON
 (402) 617-0434
 mark@airliftenvironmental.com
Business Contact
 MARK CHRISTENSON
Phone: (402) 617-0434
Email: mark@airliftenvironmental.com
Research Institution
 UNIVERSITY OF NEBRASKA LINCOLN
 
151 Whittier Research Center 2200 Vine Street
LINCOLN, NE 68583-0861
United States

 Nonprofit college or university
Abstract

DESCRIPTION provided by applicant Clean water is one of the most basic societal needs in the world Few situations incite more public outcry than when a community learns that their drinking water has been tainted Two of the biggest threats to groundwater quality in the U S are contamination from either chlorinated solvents or petroleum Left unattended the size and scope of the problems associated with the release of these contaminants into the environment have only become exacerbated with time In the past decade significant efforts have been devoted to developing innovative remedial technologies to combat contaminated groundwater One technology that is relatively mature is the injection of liquid oxidants into contaminated aquifers or in situ chemical oxidation ISCO Two roadblocks to successfully implementing ISCO treatments are when contaminants are located in low permeable layers and these finer textured zones do not readily accept liquid injections or when the aquifer is porous enough for liquid injections but the cohesive properties of the chemical oxidant results in density driven flow thereby causing the oxidant to sink and not treat the desired target zone To address both problems AirLift Environmental and the University of Nebraska developed slow release oxidant paraffin candles that when inserted into low permeable zones slowly dissolve and intercept the contaminant To prevent the oxidant from migrating downward from the candles pneumatic circulators were developed that aerate or release bubbles at the base of the candle and prevent the oxidant from sinking while greatly facilitating its horizontal distribution AirLiftandapos s Phase I TTR provided proof of concept that oxidant candles with aeration tips could be manufactured and installed with direct push equipment and that this technology could be used to successfully treat contaminated groundwater The objective of Phase II is to perform numerous on site trials so that the efficacy of the direct push candles can be quantified under a range of hydrological conditions Additional field testing will allow AirLift to refine product design and installation procedures PUBLIC HEALTH RELEVANCE Clean water is one of the most basic societal needs in the world The innovation developed in the Phase I STTR was specifically designed to provide a cost effective and efficient technology to remediate contaminated groundwater Phase II will expand field testing of the technology to multiple sites so that the innovation can become more robust and ultimately mitigate the health and safety concerns associated with contaminated groundwater

* Information listed above is at the time of submission. *

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