Abstract
Non-hazardous chemical waste and municipal solid waste (MSW) are typically disposed in landfill sites. Therefore, the soils in these sites are heavily contaminated by hazardous polymetallic substances, accompanied by biocenosis disruption. Analyses of a landfill soil in Moscow showed that the concentration of metals (As, Cr3+, Zn, Cu, Ni, and Co) exceeded the established standards, and bacteria were the dominant microorganisms in the soil. A combination of sodium salts of gibberellic acid and ammonium salt of orthochlorophenyl acetic acid showed a positive effect on soil phytoremediation. These findings lay a foundation for the application of chelate-assisted and chemo-microbe-assisted phytoextraction processes in MSW soil remediation.
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