المستخلص: |
This study was conducted to assessment the environmental impacts in petroleum refineries due to the different processes. This paper presents the data obtained during a case study achieved in Tobruk petroleum refinery The main petroleum products of the refinery represented by diesel, light naphtha, heavy naphtha and kerosene, with maximum production about 21,500 bbl/day. The results of the study revealed that the waste water affected by high concentration of hydrocarbons. The heavy metals are also determined and they are represented by V, Fe, Ni and Cu with low contents in crude oil. Also the pollutants parameters in the disposal water e. g. biochemical oxygen demand, chemical oxygen demand, total organic carbon, suspended solids, phenols, ammonia and sulphides are determined, and the results are compared with other refinery types. The concentration of these parameters are higher than the standard values that recommended by Environmental Protection Agency (EPA), at the same time these values are less if they are compared with the other refinery types.
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