EPA Science Inventory

Kazakhstan In situ BioTransformation of Mercury-Contaminated Groundwater utilizing Native Aerobic and Anaerobic Bacteria

Citation:

Abdrashitova, S., R. Devereux, L. Yakovleva, S. Jackman, AND W. Davis-Hoover. Kazakhstan In situ BioTransformation of Mercury-Contaminated Groundwater utilizing Native Aerobic and Anaerobic Bacteria. Presented at 8th International Conference Remediation of Chlorinated and Recalcitrant Compounds, May 21 - 24, 2012.

Description:

Our final international work on the biological decontamination of the mercury contamination of soils in the Northern outskirts of Pavlodar as a result of activity at the former PO “Khimprom” chemical plant is reported here. The plant produced chlorine and alkali from the 1970s into the 1990s using the electrolytic amalgam method entailing the use of massive amounts of mercury. Ground water became contaminated with Hg resulting in a plume 470 m wide, 1.9 km long, estimated to contain 2 million cubic meters of water. This plume could reach the River Irtysh, a source of drinking water for large cities in Kazakhstan and Russia. Significant amounts of mercuric compounds are deposited in the sediments of Lake Balkyldak, 1.5 km north of the factory. This lake occasionally received wastewater from the factory. Phase I of the PO “Kimprom” clean-up that isolated the major sources of mercury at the site was completed in 2004. However, significant amounts of mercury remain underground including groundwater contaminated with Hg in the form of HgCl2 with little to no elemental or methyl mercury (MeHg).

Purpose/Objective:

Develop biotechnology strategies to mitigate mercury contamination in groundwater

URLs/Downloads:

DUMMY FILE.PDF   (PDF,NA pp, 3 KB,  about PDF)

Record Details:

Record Type: DOCUMENT (PRESENTATION/ABSTRACT)
Start Date: 05/24/2012
Completion Date: 05/24/2012
Record Last Revised: 09/24/2014
Record Created: 08/16/2012
Record Released: 08/16/2012
OMB Category: Other
Record ID: 245591

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL HEALTH AND ENVIRONMENTAL EFFECTS RESEARCH LAB

GULF ECOLOGY DIVISION