Abstract
english
Highlights
One of the most dramatic environmental problems is the crude oil spill into natural aquatic systems and the subsequent environmental risks represented by endangering parts of the aquatic and ecosystem due to oil seepage from damaged pipelines into water supplies
The results revealed that complete removal of crude oil was achieved in biphasic bioreactor after 3 weeks compared to 73–82 % in a monophasic bioreactor for the same period
The results revealed that when initial concentration of crude oil was 1000 mg L–1, complete reduction of Chemical oxygen demand (COD) and oil content were observed after 21, 30, and 41 days in distilled, river, and marine water samples, respectively
Summary
One of the most dramatic environmental problems is the crude oil spill into natural aquatic systems and the subsequent environmental risks represented by endangering parts of the aquatic and ecosystem due to oil seepage from damaged pipelines into water supplies. The spill of oil into water is raising concerns of human health as well as ecological damage[1]. Biological treatment is considered a cost-effective environmentally friendly technology that is often used to treat oil spills in soils, groundwater, and surface water[2,3]. Due to the obvious benefit of the actual removal of oil from the environment and the fact that it can be cost effective compared to other physical and chemical treatment technologies, biodegradation has been, and currently remains, the subject of considerable research[4]. In the biotreatment of any organic compound, the most significant challenge is sub-
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