membrane bioreactor Articles
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Project - WWTP: Louvain-la Neuve
Process: MBR membrane bioreactor Delivery: Low speed surface aerator AIRMAX, UF ZeeWeed membrane installation + screning Installation: bridge and with full covering Quantity: 2 low speed surface aerators AIRMAX Application: municipal waste water Contractor: BALTEAU sa ...
By KAMPS s.a.
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Advantages of MBRs Over Conventional Biological Treatment Method
1. What is MBR (Membrane Bioreactor)? The MBR (Membrane Bioreactor) which was first used in the late 1960s made a revolution in the wastewater industry in the early 1990s by combining membrane filtration with a biological treatment solution to treat wastewater. It's been commonly used since then and can be seen widely practiced in the design of both new and old wastewater treatment facilities. ...
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Performance and quality analysis of membrane cartridges used in long-term operation
In this study, operation and maintenance performance in two long-term operating Membrane Bioreactor (MBR) wastewater treatment facilities were investigated. One facility in Japan started its operation in 1999 showed that both effluent BOD and n-hexane extracts were less than 5 mg/L, and a cumulative replacement percentage (CR%) of membrane cartridges was 7.8% as of 2008. Another facility in the ...
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Membrane Bioreactor Pilot
The problem A company which produces a product that requires a constant supply of relatively clean water is planning to expand by adding new process units online. The plant currently uses well water as a supply to its production. The water production from the well is limited. They need to install a system to produce reuse water to reduce the amount of water required from the onsite well in ...
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Model-based methodology for the design of optimal control strategies in MBR plants
This paper proposes a model-based methodology that allows synthesising the most appropriate strategies for optimising the operation of wastewater treatment plants (WWTPs). The methodology is applied with the aim of maximising the nitrogen removal in membrane bioreactors (MBRs). The proposed procedure is based on a systematic approach composed of four steps. First, a sensitivity analysis of ...
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Application of nanofiltration for reuse of wastewater
The present research is a part of efforts to reuse wastewater by applying nanofiltration (NF) method for the secondary treatment of bio–treated wastewater and to check the quality of product water as irrigation water by using various analytical methods. For this, the performances of three different NF membranes (CK, GE–Osmonics; NF–270 and NF–90, Dow–FilmTech) were investigated using a cross–flow ...
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Reinforced Membrane Bioreactor: Advancing Wastewater Treatment Technology
As the global population continues to expand and urbanize, the demand for clean water becomes increasingly critical. Simultaneously, industrialization and population growth result in the generation of vast amounts of wastewater, which requires efficient treatment to safeguard public health and preserve the environment. Reinforced Membrane Bioreactors (RMBRs) have become a state-of-the-art ...
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Start-up of membrane bioreactor and hybrid moving bed biofilm reactor–membrane bioreactor: kinetic study
A hybrid moving bed biofilm reactor–membrane bioreactor (hybrid MBBR-MBR) system was studied as an alternative solution to conventional activated sludge processes and membrane bioreactors. This paper shows the results obtained from three laboratory-scale wastewater treatment plants working in parallel in the start-up and steady states. The first wastewater treatment plant was a MBR, the ...
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Removal of pharmaceuticals and personal care products in a membrane bioreactor wastewater treatment plant
Ninety-nine pharmaceuticals and personal care products (PPCPs) were analyzed in influent, final effluent, and biosolids samples from a wastewater treatment plant employing a membrane bioreactor (MBR). High concentrations in influent were found for acetaminophen, caffeine, metformin, 2-hydroxy-ibuprofen, paraxanthine, ibuprofen, and naproxen (104–105 ng/L). Final effluents contained ...
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Membrane Bioreactor for National Park
The problem: Assateague Island is a barrier island that stretches from the Eastern shore of Maryland down Atlantic coast to Virginia. The island is a National Park, administered by the National Park Service, under the National Seashore division. Assateague Island is a vital resting and feeding area for birds and also is home to more than 300 wild ponies. The park receives about 1 million ...
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Comparison of two treatments for the removal of selected organic micropollutants and bulk organic matter: conventional activated sludge followed by ultrafiltration versus membrane bioreactor
The potential of membrane bioreactor (MBR) systems to remove organic micropollutants was investigated at different scales, operational conditions, and locations. The effluent quality of the MBR system was compared with that of a plant combining conventional activated sludge (CAS) followed by ultrafiltration (UF). The MBR and CAS-UF systems were operated and tested in parallel. An MBR pilot plant ...
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Trace organics removal using three membrane bioreactor configurations: MBR, IFAS-MBR and MBMBR
Seventeen pharmaceutically active compounds and 22 other trace organic pollutants were analysed regularly in the influent and permeate from a semi-real plant treating municipal wastewater. The plant was operated during 29 months with different configurations which basically differed in the type of biomass present in the system. These processes were the integrated fixed-film activated sludge ...
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Enrichment and application of nitrifying activated sludge in membrane bioreactors
In this study, nitrifying bacteria were enriched in a membrane bioreactor (MBR, R1) and their bioaugmentation effectiveness was evaluated in another two MBRs (R2 and R3). Nitrifying activated sludge (NAS) with high nitrification activity of up to 3,000 mg-N/(L·d)−1 was successfully enriched in R1. The results showed that chemical oxygen demand concentration of 100–200 mg/L had no negative ...
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TITAN MBR - Food Processing - Case Study
One of the world’s leading producers of macadamia nuts produces more than 15 million pounds each year from its Hawaii processing plant. Producing the nuts is a rather meticulous process that involves multiple steps, including collection, high-strength cracking, cleaning and dehydration. High-strength wastewater is primarily generated from the nut-cleaning stage, in this case more than ...
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Wastewater treatment facility upgrade uses combination of technologies to solve nutrient removal challenges
New regulations required the 7.5 ML/d North East River Advanced Wastewater Treatment Facility to upgrade to meet lower annual average effluent nitrogen and phosphorus limits. At the same time, facility planning was underway to expand the facility to 17.0 ML/d to accommodate planned growth in the service area. Following a pilot study to establish the performance capabilities of the existing ...
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Extension of two large wastewater treatment plants in Stockholm using membrane technology
Like many other large cities, Stockholm is facing increased urbanization with densification of infrastructure as a result. At the same time, implementation of the Baltic Sea Action Plan and the EU Water Framework Directive is expected to result in more stringent effluent quality demands. The current situation gives rise to new challenges for the municipal wastewater treatment plants (WWTPs). ...
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Monitoring benzotriazoles: a 1 year study on concentrations and removal efficiencies in three different wastewater treatment plants
Benzotriazole (BTri), 4- and 5-tolyltriazole (4-TTri, 5-TTri) were monitored over 1 year in three wastewater treatment plants (WWTPs) with a membrane bioreactor (MBR-MH) and two conventional activated sludge systems (CAS-E, CAS-M). The influent/effluent concentrations and treatment stages removal efficiencies were monitored. 5-TTri was removed best (mean removal 80%) in the WWTP mainly ...
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Simulation and optimization of an experimental membrane wastewater treatment plant using computational intelligence methods
The optimization of relaxation and filtration times of submerged microfiltration flat modules in membrane bioreactors used for municipal wastewater treatment is essential for efficient plant operation. However, the optimization and control of such plants and their filtration processes is a challenging problem due to the underlying highly nonlinear and complex processes. This paper presents the ...
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Considerations on the design and financial feasibility of full-scale membrane bioreactors for municipal applications
Based on the practical experience in design and operation of three full-scale membrane bioreactors (MBR) for municipal wastewater treatment that were commissioned since 1999, an overview on the different design concepts that were applied to the three MBR plants is given. The investment costs and the energy consumption of the MBRs and conventional activated sludge (CAS) plants (with and without ...
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Comparison of behaviour and fate of tetrabromobisphenol A (TBBPA) in membrane bioreactors and conventional activated sludge process
Research was completed on the behaviour and fate of tetrabromobisphenol A (TBBPA) in pilot-scale membrane bioreactors and conventional activated sludge (CAS) process at the City of Guelph Wastewater Treatment Plant. Emphasis was on the physicochemical processes, biological transformation and sorption kinetics. Measurement of TBBPA at the environmental level can be challenging, so the main focus ...
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