engleski

Geochemistry of selected molecular markers in the landfill of the city of Zagreb

Landfilling has long been the most popular disposal method for both domestic and industrial wastes. Application of molecular markers has proved to be a powerful tool for providing information about sources of the wastes disposed, as well as about transport and transformation processes in and below the landfill. A study conducted on the main landfill of the city of Zagreb comprised determination of a broad spectrum of organic compounds and included GC/MS analyses of solid waste, leachate, soil and groundwater samples. Compounds identified in the landfill can be classified in the two main categories: (1) markers of biological wastes and their microbial transformation (short-chain aliphatic acids, phenols, derivatives of abietic acid, sterols) and (2) markers of anthropogenic wastes (fossil and pyrolytic hydrocarbons, volatile chlorinated hydrocarbons, phthalates, surfactant-derived compounds, pharmaceutical organic compounds). The complex compound assemblages were shown to change dramatically during the transport from the waste to groundwater, reflecting their different biodegradability and physico-chemical properties.

geochemistry; molecular markers; landfill

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