Microbial Degradative Activity in Ground Water at a Chemical Waste Disposal Site

摘要

The microbial fate and effects of toxic organic chemicals at the ambientconcentration in leachates derived from a waste disposal landfill site are examined. Groundwater downslope from the burial site contains high levels of dissolved organic chemicals such as toluene, xylene, benzene, and methylene chloride. p-Cresol and toluene were used as model compounds; their microbiological dissimilation over a wide range of substrate concentrations was investigated. In addition, the effects of inorganic nutrients, the presence of other chemical pollutants, and alternative electron acceptors (sulfate and nitrate) on microbial degradative activity were assessed.