Behavior of di(2-ethylhexyl) phthalate discharged from domestic waste water into aquatic environment

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Abstract
The behavior of di(2-ethylhexyl) phthalate (DEHP) discharged from domestic waste water into river water, sediment and submerged aquatic vegetation was investigated. The concentrations of DEHP were found to be between 8–25 μg L−1 in river water, 1000–2000 μg kg−1 in sediment and less than 20–2000 μg kg−1 in submerged aquatic vegetation. The experiments performed in laboratory were on the biodegradation of DEHP in water and sediment, and also adsorption equilibrium of DEHP between water and sediment. The results obtained from the investigations made it clear that the high enrichment of DEHP from water to sediment was caused from not only its high adsorptive potential but also slow degradation in sediment.