Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Açık Bilim Politikası
Açık Bilim Politikası
Frequently Asked Questions
Frequently Asked Questions
Browse
Browse
By Issue Date
By Issue Date
Authors
Authors
Titles
Titles
Subjects
Subjects
Communities & Collections
Communities & Collections
Biodegradation of 4-CP and 2,4-DCP mixture in a rotating biological contactor (RBC)
Date
2006-09-01
Author
şahinkaya, Erkan
Dilek, Filiz Bengü
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
4
views
0
downloads
In this study, the performance of a two stage rotating biological contactor (RBC) was evaluated for the treatment of synthetic wastewater containing peptone, 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP) at 5 rpm. Also, the effect of biogenic substrate (peptone) concentration on the reactor performance was investigated. High chlorophenols (> 98%) and COD (> 94%) removals were achieved throughout the reactor operation in the first stage and the second stage behaved as a polishing step. The observed max [mum 4-CP and 2,4-DCP removal rates in the first stage were 2305 mg/L day (18.3 g/m(2) day) and 1202 mg/L day (9.5 g/m(2) day), respectively. Deacclimation of biomass was carried out for 3.5 months after 260 days of operation with the reactor feed turning on to contain peptone only. Upon addition of 4-CP (200 mg/L) and 2,4-DCP (100 mg/L), a rapid reacclimation of biomass was observed within 16 days. Shock loading experiments with 4-CP (822.7 +/- 1.4) and 2,4-DCP (424.6 +/- 1.9 mg/L) resulted in around four times higher effluent 4-CP concentrations than 2,4-DCP in both stages, which may be due to strong competitive inhibition of 2,4-DCP on 4-CP degradation. (c) 2006 Elsevier B.V. All fights reserved.
Subject Keywords
Biotechnology
,
Environmental Engineering
,
Bioengineering
,
Biomedical Engineering
URI
https://hdl.handle.net/11511/34944
Journal
BIOCHEMICAL ENGINEERING JOURNAL
DOI
https://doi.org/10.1016/j.bej.2006.07.004
Collections
Department of Environmental Engineering, Article