Fate and effect of 2,4-dichlorophenol on biological treatment processes |
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Authors: | Fatma A El-Gohary Fayza A Nasr |
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Institution: | Environmental Sciences Division, Water Pollution Control Laboratory, National Research Centre, Dokki, Cairo, Egypt |
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Abstract: | The fate and effect of continuous feeding of increasing doses of 2,4-dichlorophenol (DCP) were investigated. At the beginning of each run, a drop in the efficiency of the system was recorded, after which a steady state was obtained. Continuous feeding of DCP up to a concentration of 50 mg L?1 reduced BOD5 and COD removal rates by 27% and 29%, respectively. Application of shock doses of DCP showed that adaptation increases the capacity of biological systems for removing toxic chemicals. |
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