membrane bioreactor membrane Articles

  • Dye wastewater treatment by using ceramic membrane bioreactor

    Performance of a Micro-filtration Membrane Bioreactor (MMBR) for treatment of dye wastewater was investigated. The experimental results indicated that the removal efficiency for COD, TOC and colour was 85%, 85-90% and 70%, respectively, the effluent COD was below 70 mgl−1 on average. Gel layer resistance of COD was 10%. Particle size distribution of sludge in MMBR was 1-150 μm, and the average ...


    By Inderscience Publishers

  • Treatment of municipal wastewater by membrane bioreactor: a pilot study

    The operational performance of a submerged hollow fibre Membrane Bio-Reactor (MBR) for treatment of municipal wastewater on pilot scale was investigated. The experimental results indicated that the removal efficiency for SS, COD, NH4-N, turbidity, bacterium, iron (Fe2+) and Manganese (Mn2+) was 100%, 94.5%, 98.3%, 99.7%, lg6, 99%, 92.3%, respectively. The water quality of the effluent was quite ...


    By Inderscience Publishers

  • Pilot testing of a membrane bioreactor for metals removal

    The City of Davis, California (City) Water Pollution Control Plant (WPCP) is facing stricter effluent permit requirements and compliance with the California Toxics Rule (CTR) effluent limitations. The impact of these requirements will necessitate upgrades to the existing WPCP to include conventional secondary and tertiary processes to control the discharge of biochemical oxygen demand (BOD), ...

  • Membrane Bioreactor for Water Mining in New York City

    The Facility The Helena, which opened in late 2005, is an apartment building that offers more than amenities, views, and nice finishes. Behind the $100 million tower’s gleaming glass and metal skin is a serious high-performance building. Its owner and designers say the Helena will annually use 65 percent of the energy and one-third of the potable water of comparable ...


    By Dynatec Systems Inc.

  • Membrane Bioreactor for the treatment of natural rubber wastewater

    A membrane bioreactor was set up using two pieces of Kubota flat sheet membranes, with nominal pore size of 0.4 ∝m and a total effective area of 0.2 m²atex concentrate processing factory. A steady-state MLSS concentration was attained at 8500 mg/L during biomass acclimatisation. A critical flux of 0.01224 m³/m²h was determined using the flux step method, whereas an optimum ...


    By Inderscience Publishers

  • Membrane bioreactor technology for decentralised wastewater treatment and reuse

    There is a growing interest in utilising non-traditional water resources by means of water reclamation and water recycling for long term sustainability. Amongst the many treatment alternatives, membrane bioreactors (MBRs) have been seen as an effective technology capable of transforming various types of wastewater into high-quality effluent exceeding most discharge requirements and suitable for a ...


    By Inderscience Publishers

  • Membrex Membrane Bioreactor - Croisières AML, QC, Canada

    Customer: Croisières AML Croisières AML is the most important cruise-expedition company in Canada. With a fleet of 18 boats located in 8 different ports in the province, near 650 employees welcome 500,000 passengers every year. In order to obtain from Transport Canada all the certifications and permits that are needed, each of their ships must meet very specific ...


    By Premier Tech Aqua

  • Membrane filtration

    Membrane is a thin layer of material that is capable of separating compounds as a function of physical and chemical properties when a driving force is applied across the membrane, which has been widely used in a wide range of applications in water industry [1]. Membrane can be classified by the range of compounds separated and the driving forces employed. For example, microfiltration (MF), ...


    By IWA Publishing

  • Effect of sludge retention time on membrane bio-fouling using different type and pore size of membranes in a submerged membrane bioreactor

    The objective of this study was to investigate the influence of sludge retention time (SRT) on membrane bio-fouling. An activated sludge reactor was operated at three different SRTs (10, 30, and 50 days). Submerged membrane experiments were performed when the mixed liquor suspended solids (MLSS) concentration reached the steady state conditions. MLSS concentrations reached the steady state at ...


    By IWA Publishing

  • 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 second ...


    By IWA Publishing

  • Ethinylestradiol removal in a conventional and a simultaneous nitrification–denitrification membrane bioreactor

    The removal of a synthetic estrogen 17α-ethinylestradiol (EE2) was investigated in submerged membrane bioreactors (MBRs) with simultaneous nitrification–denitrification (SND) and conventional nitrification. The influent EE2 concentration was 500 ng/L as EE2. Using a yeast estrogen screen test, the conventional-MBR (C-MBR) and SND MBR (SND-MBR) removed 57 and 58% of the estrogenic activity (EA) ...


    By IWA Publishing

  • Research on the microbial characters of mixture in an integrated A/O membrane bioreactor

    An integrated anaerobe/aerobic membrane bioreactor (A/O MBR) was built and used to treat urban sewage water. The characters of mixture was researched and analyzed. Because the concentration of active sludge in MBR is high, the load of the sludge during the function is really low. When the active sludge functioned under low load condition, because of the low concentration of nutrition the ...


    By IWA Publishing

  • Brightwater: The Design Challenges of a 39 mgd (150 MLD) Membrane Bioreactor

    Many Membrane Bioreactor (MBR) facilities have been constructed in North America, however to date the largest operating MBR facility in Traverse City MI has had a maximum month capacity of 8.5 mgd (32 MLD). The Brightwater MBR plant, now under construction in King County, Washington, is designed to have a maximum continuous capacity of 39 mgd (148 MLD), with a peak MBR treatment capacity of 57 ...

  • 600 MLD Membrane Bioreactor for Tertiary Nitrification in Hamilton, Ontario

    The City of Hamilton is faced with increasing pressure from growth and development, greater wet weather treatment needs, and stringent effluent targets. In order to address these challenges, the City of Hamilton has initiated an ambitious program to identify alternative upgrade options for the Woodward Avenue WWTP. One of the alternatives identified for further investigation is a tertiary ...

  • Submerged anaerobic membrane bioreactor for wastewater treatment and energy generation

    Compared with conventional wastewater treatment processes, membrane bioreactors (MBRs) offer several advantages including high biodegradation efficiency, excellent effluent quality and smaller footprint. However, it has some limitations on account of its energy intensive operation. In recent years, there has been growing interest in use of anaerobic membrane bioreactors (AnMBRs) due to their ...


    By IWA Publishing

  • Experimental evaluation of intermittent aeration of a hollow fibre membrane bioreactor

    Intermittent membrane aeration provides a substantially improved energy efficiency in hollow fibre-based immersed membrane bioreactors (HF iMBRs). The benefits of intermittent aeration have been assessed with respect to sustaining a target flux and/or limiting the fouling rate to a sustainable level based on a small plant using full-scale HF modules. Results show that for the same specific ...


    By IWA Publishing

  • Effect of low dosages of powdered activated carbon on membrane bioreactor performance

    Previous research has demonstrated that powdered activated carbon (PAC), when applied at very low dosages and long SRTs, reduces membrane fouling in membrane bioreactors (MBRs). This effect was related to the formation of stronger sludge flocs, which are less sensitive to shear. In this contribution the long-term effect of PAC addition was studied by running two parallel MBRs on sewage. To one of ...


    By IWA Publishing

  • Wastewater treatment using bioreactor with dual functional ceramic membrane

    A novel bioreactor including a group of dual functional ceramic membranes was developed and used for wastewater treatment. The ceramic membranes could be used for both aeration and filtration alternately, so fouling to ceramic membrane would be palliated effectively as its dual functions. For 100 days operation, COD removal ratio was 88∼97% for influent COD of 154∼1389 mg/L, and NH4+-N removal ...


    By Inderscience Publishers

  • Design and operating experiences of full-scale municipal membrane bioreactors in Japan

    In Japan, membrane bioreactor (MBRs) have been installed in 17 small-scale municipal wastewater treatment plants (WWTPs) in the past 8 years, together with two recently installed MBRs for larger-scale WWTPs. In this study, design and operating data were collected from 17 of them as part of a follow-up survey, and aspects including system design, biological treatment, membrane operation, problems ...


    By IWA Publishing

  • Evaluation of different configurations of hybrid membrane bioreactors for treatment of domestic wastewater

    Four membrane bioreactors (MBRs) with the same dimensions were studied for 180 days: three hybrid growth membrane bioreactors with biofilm attached in different packing media and a conventional MBR (C-MBR). The four MBRs had an identical membrane module of hollow fiber with a nominal porous diameter of 0.4 μm. The MBRs were: (1) a C-MBR; (2) a moving bed membrane bioreactor (MB-MBR), ...


    By IWA Publishing

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