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In‐situ bioremediation of an aquifer contaminated with 1,2‐dichloroethane
Author(s) -
Michiels Thierry,
Breugelmans Dirk
Publication year - 1994
Publication title -
remediation journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.762
H-Index - 27
eISSN - 1520-6831
pISSN - 1051-5658
DOI - 10.1002/rem.3440050108
Subject(s) - bioremediation , aquifer , groundwater , contamination , environmental science , in situ , environmental chemistry , hydrogeology , environmental engineering , chemistry , geology , ecology , geotechnical engineering , biology , organic chemistry
This article describes the application of in‐situ bioremediation for the treatment of an aquifer contaminated with 1,2‐dichloroethane (DCA). The first step in the process was to properly delineate the contamination and to contain the contaminated groundwater using a pumping well. The second step was to isolate in the groundwater microorganisms able to degrade DCA and to demonstrate the possibility of increasing their efficiency by injecting in‐situ nutrients and hydrogen peroxide (H 2 O 2 ) solution. In the third step, after the characterization of the hydrogeology of the aquifer with tracing experiments, the in‐situ bioremediation of the groundwater was conducted. The analyses show that 95 percent of DCA was destroyed by this treatment, leading to a DCA concentration around the pumping well of about 0.2 mg/l.