Remediacja środowiska gruntowo-wodnego zanieczyszczonego chlorowanymi związkami organicznymi z wykorzystaniem metod in situ

Abstract

Remediation of groundwater environment polluted with chlorinated organic compounds using in-situ methods.A b s t r a c t. The article discusses purification of groundwater contaminated with chlorinated solvents including tetrachlorethane (PCE) and trichloroethene (TCE), using reactive barriers and in situ injection. For the dehalogenation of complex chlorinated hydrocarbons, a reagent consisting of zero-value controlled iron and nutrient-stimulating bio-degradable substances was used in the remediation works. The effectiveness ofremediation of soil and water contaminated with TCE and PCE depends on the degree of understanding of the processes that pollutants undergo. The combination of three methods made it possible to reduce pollution in groundwater by 80%. The Regulation on the Register of Historic Land Pollution, introduced in September 2016, paves the way for restoring contaminated land to its initial quality with the remediation processes, but does not answer the question of how to assess the quality of water in the context of the proposed remediation work.