Technology of Evaluation Methods of Soil Remediation Effectiveness According to Biological Indicators
Sergey Ilyich Kolesnikov, Елена Николаевна Ротина · 2013
To evaluate effectiveness of remediation of soils polluted with crude oil or oil products it may be recommended to use the technology of determination of integral indicator of biological state (IIBS) of the soil. It is determined according to the most informative biological indicators. When IIBS of remediated soil and IIBS of unpolluted soil differ not more that by 10% the remediation has been made correctly. If the difference is more that 10% the remediation did not achieve the designed goal. When the difference between IIBS of polluted and clear soil is less than 10% before remediation it is not reasonable to carry it out. Proposed technology was tested on Maykop landfill. Remediation of compact chernozem of Maykop landfill may be considered effective because the difference between IIBS of unpolluted and polluted soils was 30% before remediation and only 5% after remediation. Technical step of remediation of brown forest soils should not be done because upper humus layer of the soil has been moved away together with fuel oil and IIBS was dramatically reduced. Before remediation the difference between IIBD of polluted and clear soils was only 12% so it would have been more reasonable to limit the works to biological remediation.