moving bed biofilm reactor Articles
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Quantification of kinetic parameters for heterotrophic bacteria via respirometry in a hybrid reactor
Over the last decade new technologies are emerging even more for wastewater treatment. Among the new technologies, a recent possible solution regards Moving Bed Biofilm Reactors (MBBRs) that represent an effective alternative to conventional processes. More specifically such systems consist in the introduction of plastic elements inside the aerobic reactor as carrier material for the growth of ...
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Army Truck Wash Depot case study
The Problem: The Army Truck Wash Depot had a trickling filter that was not capable of handling the organic loading generated by heavy vehicle wash operation. The tricking filter was channeling the wastewater due to media that had been crushed by the weight of the biomass that could not be sloughed off. As a result, the ability to treat the wastewater for BOD reduction could not meet the NPDES ...
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Comparative study on membrane fouling between membrane-coupled moving bed biofilm reactor and conventional membrane bioreactor for municipal wastewater treatment
This study compared the performance between membrane-coupled moving bed biofilm reactor (M-MBBR) and a conventional membrane bioreactor (MBR) in parallel. Extensive tests were conducted in three pilot-scale experimental units over 6 months. Emphasis was placed on the factors that would affect the performance of membrane filtration. The results showed that the concentrations of soluble microbial ...
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Removal of phosphorus and residual aluminium with the simultaneous use of chitosan and alum on the effluent of an MBBR biological system during start–up
Physico–chemical treatment with aluminium salts is a common practice to remove total phosphorus (TP) from wastewaters. However, the use of alum can increase the residual aluminium concentration both in the effluent and biosolids. Chitosan, an alternative coagulant, does not allow for the removal of TP below the requirement level when lower than the soluble phosphorus fraction of the water. Hence, ...
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Nitrous oxide emissions from one-step partial nitritation/anammox processes
Measurements of nitrous oxide were made at pilot- and full-scale plants to evaluate greenhouse gas emissions from one-step partial nitritation/anammox processes applied in moving bed biofilm reactors treating reject water. It was found that 0.51–1.29% and 0.35–1.33% of the total nitrogen loads in the pilot- and full-scale reactor, respectively, were emitted as nitrous oxide. Between 80 and ...
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BM - Respirometry Systems
The BM Respirometry is a technology designed by SURCIS that combines the traditional Respirometry with a state of the art method that permits to carry out different types of tests on a fast and simple way to measure the oxygen uptake and derived parameters from the microorganisms of the activated sludge in any biological wastewater treatment plant. The key points of the BM Respirometry: . Direct ...
By SURCIS, S.L.
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Modelling clogging and biofilm detachment in sponge carrier media
Sponge carrier media provide a large surface area for biofilm support; however, little information is known about how to model their dual nature as a moving bed and as porous media. To investigate the interaction of mass transfer and detachment with bio-clogging, a novel biofilm model framework was built based on individual-based modelling, and hydrodynamics were modelled using the lattice ...
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Biofilm regeneration on carriers in MBBR used for vitamin C wastewater treatment
Methods were investigated for biofilm regeneration on carriers in a moving bed biofilm reactor used for vitamin C production wastewater treatment. Three ordinary chemical cleaning agents (hydrochloric acid, sodium hydroxide, and sodium hypochlorite) and physical drying were chosen for evaluation as methods for biofilm detachment. The results showed that these methods all had some degree of ...
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Characteristics of municipal wastewater treatment by moving-bed biofilm reactor
In this paper, the bio-activity of activated sludge was investigated using Oxygen Uptake Rate (OUR) as an indicator. The activity of ammonium oxidation and COD removal of both attached- and suspended-growth sludge was determined under different temperature and organic loading rates. The experimental results indicated that at 5°C, the nitrification activity was about 60% of that at 18°C. The ...
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Biofilm carriers / MBBR carrier media and their respective diffusion depth
Within the biological wastewater treatment sector, it can increasingly be observed that biofilm carriers are applied in so-called Moving Bed Biofilm Reactors (MBBR). Thereby, the MBBR process is not only used to great success for the purification of domestic sewage but also in the sector of industrial wastewater and aquaculture systems. The availability of high-performance biofilm carriers, ...
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Municipal Bloomingdale, MI USA - Case Study
Project Name: Bloomingdale WWTP Upgrade Location: Bloomingdale, MI USA Type of Plant: Municipal - Nitrification Technology Used: Biowater CMFF Biomedia Used: Biowater BWT-X Operational Since: 2013 The Challenge Bloomingdale’s existing wastewater treatment plant has unique challenges associated with seasonal fluctuation from regional school and food processor discharges. The existing ...
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Moving Bed Biofilm Reactor (MBBR) in Wastewater Treatment
The Moving Bed Biofilm Reactor (MBBR) is another wastewater treatment technology. The major benefit of the MBBR process is a reduced footprint – an important major advantage when faced with space constraints. The Sequencing Batch Reactor process was discussed in a previous post – this article is a continuation of our series on the various wastewater treatment technology options ...
By Coftec
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Effect of selective organic fractions on denitrification rates using Salsnes Filter as primary treatment
The purpose of this project was to investigate the effect of selective particle removal during primary treatment on downstream biological nutrient removal processes. Bench-scale Salsnes Filter fine mesh sieves were used as a primary treatment to obtain different organic fractions to test the effect on denitrification. Activated sludge and moving bed biofilm reactor anoxic tests were performed ...
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Synergistic application of advanced primary and secondary wastewater treatment systems
Published in Water and Waste Digest membrane issue, November 2008 Miroslav Colic; Chief Scientist, Clean Water Technology Inc., Los Angeles, CA To be published in Water and Waste Digest later this year The increased regulatory pressures and demand for reused water stimulated development of several new wastewater technologies in the last decade. Advanced treatment systems are characterized by ...
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Treatment of petroleum refinery wastewater using a sequential anaerobic–aerobic moving-bed biofilm reactor system based on suspended ceramsite
In this study, a novel suspended ceramsite was prepared, which has high strength, optimum density (close to water), and high porosity. The ceramsite was used to feed a moving-bed biofilm reactor (MBBR) system with an anaerobic–aerobic (A/O) arrangement to treat petroleum refinery wastewater for simultaneous removal of chemical oxygen demand (COD) and ammonium. The hydraulic retention ...
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Operating a pilot-scale nitrification/distillation plant for complete nutrient recovery from urine
Source-separated urine contains most of the excreted nutrients, which can be recovered by using nitrification to stabilize the urine before concentrating the nutrient solution with distillation. The aim of this study was to test this process combination at pilot scale. The nitrification process was efficient in a moving bed biofilm reactor with maximal rates of 930 mg N L−1 d−1. Rates ...
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Effect of salinity variation on the autotrophic kinetics of the start-up of a membrane bioreactor and hybrid moving bed biofilm reactor-membrane bioreactor at low hydraulic retention time
A membrane bioreactor (MBR) and a hybrid moving bed biofilm reactor-membrane bioreactor (hybrid MBBR-MBR) for municipal wastewater treatment were studied to determine the effect of salinity on nitrogen removal and autotrophic kinetics. The biological systems were analyzed during the start-up phase with a hydraulic retention time (HRT) of 6 h, total biomass concentration of 2,500 mg L−1 in the ...
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Pilot scale studies on nitritation-anammox process for mainstream wastewater at low temperature
Process of partial nitritation-anammox for mainstream wastewater at low temperature was run in a pilot scale moving bed biofilm reactor (MBBR) system for about 300 days. The biofilm history in the reactor was about 3 years of growth at low temperature (down to 10 °C). The goal of the studies presented in this paper was to achieve effective partial nitritation-anammox process. Influence of ...
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5 Top advantages of MBBR wastewater treatment
Wastewater treatment solutions have become one of the significant moves to filter waste water. Whether it is for fighting with the growing shortage of drinking water or finding better water sources for wastewater, several technologies have been practice for centuries, and MBBR wastewater treatment is being used for filtering waste water in both industrial and domestic sectors. MBBR or Moving Bed ...
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Application of a moving-bed biofilm reactor for sulfur-oxidizing autotrophic denitrification
Sulfur-oxidizing autotrophic denitrification (SO-AD) was investigated in a laboratory-scale moving-bed biofilm reactor (MBBR) at a sewage temperature of 22 °C. A synthetic wastewater with nitrate, sulfide and thiosulfate was fed into the MBBR. After 20 days' acclimation, the reduced sulfur compounds were completely oxidized and nitrogen removal efficiency achieved up to 82%. The operation ...
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