scholarly journals Biological treatment of dairy wastewater by a sequencing batch flexible fibre biofilm reactor

2009 ◽  
Author(s):  
M. E. Abdulgader ◽  
Q. J. Yu ◽  
P. Williams ◽  
A. A. L. Zinatizadeh
Keyword(s):  
Biological Treatment ◽  
Biofilm Reactor ◽  
Dairy Wastewater

scholarly journals Moving bed biofilm reactor (MBBR) for dairy wastewater treatment

2020 ◽  
Vol 6 ◽  
pp. 340-344
Author(s):  
Andreia D. Santos ◽  
Rui C. Martins ◽  
Rosa M. Quinta-Ferreira ◽  
Luis M. Castro
Keyword(s):  
Wastewater Treatment ◽  
Biofilm Reactor ◽  
Dairy Wastewater ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed

Treatment of Dairy Wastewater in a Novel Moving Bed Biofilm Reactor

1992 ◽  
Vol 26 (3-4) ◽  
pp. 703-711 ◽  
Author(s):  
B. Rusten ◽  
H. Ødegaard ◽  
A. Lundar
Keyword(s):  
Surface Area ◽  
Pilot Plant ◽  
Industrial Effluents ◽  
Biofilm Reactor ◽  
Dairy Wastewater ◽  
Test Results ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed ◽  
Biofilm Reactors ◽  
In Series

A novel moving bed biofilm reactor has been developed, where the biofilm grows on small, free floating plastic elements with a large surface area and a density slightly less than 1.0 g/cm3. The specific biofilm surface area can be regulated as required, up to a maximum of approximately 400 m2/m3. The ability to remove organic matter from concentrated industrial effluents was tested in an aerobic pilot-plant with two moving bed biofilm reactors in series and a specific biofilm surface area of 276 m2/m3. Treating dairy wastewater, the pilot-plant showed 85% and 60% COD removal at volumetric organic loading rates of 500 g COD/m3h and 900 g COD/m3h respectively. Based on the test results, the moving bed biofilm reactors should be very suitable for treatment of food industry effluents.

scholarly journals Modeling of Electric Energy Consumption during Dairy Wastewater Treatment Plant Operation

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3769 ◽  
Author(s):  
Radosław Żyłka ◽  
Wojciech Dąbrowski ◽  
Paweł Malinowski ◽  
Beata Karolinczak
Keyword(s):  
Wastewater Treatment ◽  
Energy Consumption ◽  
Air Temperature ◽  
Biological Treatment ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Electric Energy ◽  
Dairy Wastewater ◽  
Organic Load ◽  
Electric Energy Consumption

The intensification of biological wastewater treatment requires the high usage of electric energy, mainly for aeration processes. Publications on energy consumption have been mostly related to municipal wastewater treatment plants (WWTPs). The aim of the research was to elaborate on models for the estimation of energy consumption during dairy WWTP operation. These models can be used for the optimization of electric energy consumption. The research was conducted in a dairy WWTP, operating with dissolved air flotation (DAF) and an activated sludge system. Energy consumption was measured with the help of three-phase network parameter transducers and a supervisory control and data acquisition (SCADA) system. The obtained models provided accurate predictions of DAF, biological treatment, and the overall WWTP energy consumption using chemical oxygen demand (COD), sewage flow, and air temperature. Using the energy consumption of the biological treatment as an independent variable, as well as air temperature, it is possible to estimate the variability of the total electric energy consumption. During the summer period, an increase in the organic load (expressed as COD) discharged into the biological treatment causes higher electric energy consumption in the whole dairy WWTP. Hence, it is recommended to increase the efficiency of the removal of organic pollutants in the DAF process. An application for the estimation of energy consumption was created.

scholarly journals SIMULATED DAIRY WASTEWATER TREATMENT IN A PILOT PLANT SCALE MAGNETO-ACTIVE HYBRID ANAEROBIC BIOFILM REACTOR (MA-HABR)

2018 ◽  
Vol 35 (2) ◽  
pp. 553-562 ◽  
Author(s):  
Marcin Dębowski ◽  
Marcin Zieliński ◽  
Marta Kisielewska ◽  
Mirosław Krzemieniewski ◽  
Monika Makowska ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Pilot Plant ◽  
Biofilm Reactor ◽  
Dairy Wastewater ◽  
Pilot Plant Scale

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.

Dairy wastewater treatment in a moving bed biofilm reactor

2002 ◽  
Vol 45 (12) ◽  
pp. 321-328 ◽  
Author(s):  
G. Andreottola ◽  
P. Foladori ◽  
M. Ragazzi ◽  
R. Villa
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Biofilm Reactor ◽  
Dairy Wastewater ◽  
Production Cycle ◽  
Nutrient Loads ◽  
Moving Bed Biofilm Reactor ◽  
Moving Bed ◽  
Pre Treatment ◽  
High Concentrations

Dairy raw wastewater is characterised by high concentrations and fluctuations of organic matter and nutrient loads related to the discontinuity in the cheese production cycle and machinery washing. The applicability of a Moving Bed Biofilm Reactor (MBBR) filled with FLOCOR-RMP® plastic media to the treatment of dairy wastewater was evaluated in a pilot-plant. COD fractionation of influent wastewater, MBBR performance on COD and nutrient removal were investigated. A removal efficiency of total COD over 80% was obtained with an applied load up to 52.7 gCOD m−2 d−1 (corresponding to 5 kgCOD m−3d−1). The COD removal kinetics for the MBBR system was assessed. The order of the kinetics resulted very close to half-order in the case of a biofilm partially penetrated by the substrate. The nitrogen removal efficiency varied widely between 13.3 and 96.2% due to the bacterial synthesis requirement. The application of a MBBR system to dairy wastewater treatment may be appropriate when upgrading overloaded activated sludge plants or in order to minimise reactor volumes in a pre-treatment.

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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