Kinetic modeling and parameter estimation in biological treatment of 2,4-dichlorophenol containing wastewater using rotating perforated tubes biofilm reactor

2006 ◽  
Vol 38 (6) ◽  
pp. 860-866 ◽  
Author(s):  
Serkan Eker ◽  
Fikret Kargi
Keyword(s):  
Parameter Estimation ◽  
Kinetic Modeling ◽  
Biological Treatment ◽  
Biofilm Reactor

scholarly journals Progress in Accurate Chemical Kinetic Modeling, Simulations, and Parameter Estimation for Heterogeneous Catalysis

ACS Catalysis ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 6624-6647 ◽  
Author(s):  
Sebastian Matera ◽  
William F. Schneider ◽  
Andreas Heyden ◽  
Aditya Savara
Keyword(s):  
Parameter Estimation ◽  
Heterogeneous Catalysis ◽  
Kinetic Modeling ◽  
Chemical Kinetic

scholarly journals Kinetic Modeling of Fluidized-Bed Biofilm Reactor for Lake Water Treatment.

1999 ◽  
Vol 22 (5) ◽  
pp. 389-395 ◽  
Author(s):  
Noriyo NISHIJIMA ◽  
Tetsuya TANAKA ◽  
Kouichi TSUZUKI ◽  
Takeo TAKAGI
Keyword(s):  
Water Treatment ◽  
Fluidized Bed ◽  
Kinetic Modeling ◽  
Lake Water ◽  
Biofilm Reactor

scholarly journals Distribution and Removal of Pharmaceuticals in Liquid and Solid Phases in the Unit Processes of Sewage Treatment Plants

2020 ◽  
Vol 17 (3) ◽  
pp. 687 ◽  
Author(s):  
Junwon Park ◽  
Changsoo Kim ◽  
Youngmin Hong ◽  
Wonseok Lee ◽  
Hyenmi Chung ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
Biological Treatment ◽  
Sewage Treatment ◽  
Biofilm Reactor ◽  
Relative Distribution ◽  
Biological Processes ◽  
Sewage Treatment Plants ◽  
Treatment Processes ◽  
Mass Load ◽  
Removal Efficiencies

In this study, we analyzed 27 pharmaceuticals in liquid and solid phase samples collected from the unit processes of four different sewage treatment plants (STPs) to evaluate their distribution and behavior of the pharmaceuticals. The examination of the relative distributions of various categories of pharmaceuticals in the influent showed that non-steroidal anti-inflammatory drugs (NSAIDs) were the most dominant. While the relative distribution of antibiotics in the influent was not high (i.e., 3%–5%), it increased to 14%–30% in the effluent. In the four STPs, the mass load of the target pharmaceuticals was reduced by 88%–95% mainly in the biological treatment process, whereas the ratio of pharmaceuticals in waste sludge to those in the influent (w/w) was only 2%. In all the STPs, the removal efficiencies for the stimulant caffeine, NSAIDs (acetaminophen, naproxen, and acetylsalicylic acid), and the antibiotic cefradine were high; they were removed mainly by biological processes. Certain compounds, such as the NSAID ketoprofen, contrast agent iopromide, lipid regulator gemfibrozil, and antibiotic sulfamethoxazole, showed varying removal efficiencies depending on the contribution of biodegradation and sludge sorption. In addition, a quantitative meta-analysis was performed to compare the pharmaceutical removal efficiencies of the biological treatment processes in the four STPs, which were a membrane bioreactor (MBR) process, sequencing batch reactor (SBR) process, anaerobic–anoxic–oxic (A2O) process, and moving-bed biofilm reactor (MBBR) process. Among the biological processes, the removal efficiency was in the order of MBR > SBR > A2O > MBBR. Among the tertiary treatment processes investigated, powdered activated carbon showed the highest removal efficiency of 18%–63% for gemfibrozil, ibuprofen, ketoprofen, atenolol, cimetidine, and trimethoprim.

Mathematical and kinetic modeling of biofilm reactor based on ant colony optimization

2010 ◽  
Vol 45 (6) ◽  
pp. 961-972 ◽  
Author(s):  
K. Rama Rao ◽  
T. Srinivasan ◽  
Ch. Venkateswarlu
Keyword(s):  
Ant Colony Optimization ◽  
Kinetic Modeling ◽  
Biofilm Reactor ◽  
Ant Colony

scholarly journals Biological treatment of milk processing wastewater in a sequencing batch flexible fibre biofilm reactor

2009 ◽  
Vol 4 (5) ◽  
pp. 698-703 ◽  
Author(s):  
Mohamed Abdulgader ◽  
Qiming Jimmy Yu ◽  
Ali Zinatizadeh ◽  
Philip Williams
Keyword(s):  
Biological Treatment ◽  
Biofilm Reactor ◽  
Milk Processing

Combination of photo-Fenton and biological SBBR processes for sulfamethoxazole remediation

2008 ◽  
Vol 58 (9) ◽  
pp. 1707-1713 ◽  
Author(s):  
O. González ◽  
M. Esplugas ◽  
C. Sans ◽  
S. Esplugas
Keyword(s):  
Biological Treatment ◽  
Fenton Reaction ◽  
Biofilm Reactor ◽  
Synthetic Wastewater ◽  
Total N ◽  
Sequencing Batch Biofilm Reactor ◽  
N Removal ◽  
Start Up ◽  
C And N ◽  
Combined Strategy

A combined strategy of a photo-Fenton pretreatment followed by a Sequencing Batch Biofilm Reactor (SBBR) was evaluated for total C and N removal from a synthetic wastewater containing 200 mg L−1 of the antibiotic Sulfamethoxazole (SMX). Photo-Fenton reaction was performed with two different H2O2 concentrations (300 and 400 mg L−1) and 10 mg L−1 of Fe2 + . The pre-treated effluents with the antibiotic intermediates as sole carbon source, together with a nutrients solution, were used as feed for the biological reactor. The SBBR was operated under aerobic conditions to mineralize the organic carbon and the hydraulic retention time (HRT) was optimized down to 8 hours. Then, an anoxic denitrification stage of 24 hours of HRT was added right after the aerobic stage of the same duration in order to remove the NO3− generated along the chemical–biological treatment. TOC, COD and SMX concentrations together with O2 uptake rate (OUR) profiles were monitored in purpose of assessing the performance of the system. NO3−, NH4+ and total N concentrations were analyzed to find out the fate of N contained in the initial SMX molecule. A start up strategy resulted in the correct formation of a biofilm over the volcanic support. The total TOC removals achieved with the combination of the chemical and the biological processes were 75.7 and 87.7% for the low and the high H2O2 concentration pretreatments respectively. Practically all N present in the SMX solution was eliminated in the SBBR when the aerobic–anoxic strategy was used.

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