Abstract
In the work, the effect of 2-chlorophenol and 2,4,6-trichlorophenol on the performance of a sequencing batch reactor operated with suspended municipal recycle activated sludge (RAS) in terms of total carbon and total nitrogen removal is presented. The total carbon removal achieved ranged in 80%–100% and total nitrogen removal in 10%–84%. The results showed that chlorophenols did not inhibit either the activated sludge growth or the total carbon removal significantly. However, inhibition is observed in total nitrogen removal. 2-chlorophenol inhibited the ammonium oxidation (nitrification) while such an effect was not observed in the case of 2,4,6-trichlorophenol indicating that the later inhibits the ammonification step. Moreover, the results indicated that total removal of both chlorophenols was achieved during the first day of the processing.
Original language | English |
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Pages (from-to) | 283-291 |
Number of pages | 9 |
Journal | Desalination and Water Treatment |
Volume | 133 |
DOIs | |
Publication status | Published - Nov 2018 |
Keywords
- 2,4,6-TCP
- 2-CP
- Activated sludge
- Inhibition
- Sequencing batch reactor
ASJC Scopus subject areas
- Water Science and Technology
- Ocean Engineering
- Pollution