water treatment bioreactor Articles

  • Two phase partitioning bioreactor applied to produced water treatment

    Produced waters are the largest waste associated with the production of oil and gas; they contain dissolved salts, oil (dissolved and scattered organic compounds), chemicals and additives involved in the oil well operations, suspended particles, sand and other compounds, making their treatment very complex. In this paper, we propose the use of a TPPB (two phase partitioning bioreactor) for the ...


    By IWA Publishing

  • In-stream bioreactor for agricultural nitrate treatment

    Nitrate from agricultural activity contributes to nutrient loading in surface water bodies such as the Mississippi River. This study demonstrates a novel in-stream bioreactor that uses carbonaceous solids (woodchips) to promote denitrification of agricultural drainage. The reactor (40 m3) was trenched into the bottom of an existing agricultural drainage ditch in southern Ontario (Avon site), and ...

  • Airlift bioreactors: Application to wastewater treatment

    After an introductory review, this paper presents a three-phase reactor fluid dynamic model that is used in the development of a generic process for upgrading existing wastewater treatment plants (WWT). The aim is to incorporate nitrification and de-nitrification without additional reactor volume. The core of the process consists of an attached growth airlift reactor (AGAR) in which a biomass ...

  • 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

  • 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

  • Chemical wastewater treatment applying a membrane bioreactor (MBR)

    IntroductionAt the current time Membrane Bioreactors (MBR) are the primary focus of wastewater treatment technologies. MBR is a combination of biological activated sludge process for the removal of nutrients and a membrane filtration for separation of biomass and treated water. In industrial wastewater treatment MBRs have proven to be a particularly reliable technique [Cornel et al., 2006]. The ...


    By MICRODYN-NADIR

  • A Submerged Attached Growth Bioreactor for Decentralized Wastewater Treatment

    ABSTRACTThe Amphidrome® process is a submerged attached growth bioreactor (SAGB) that has been used in Massachusetts, Connecticut, Rhode Island and New Jersey for decentralized wastewater treatment systems ranging in size from 440 gpd to 150,000 gpd. The two primary advantages of a SAGB are the small volume requirement and the elimination of downstream clarification. Five years of data from four ...

  • 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 ...


    By Dynatec Systems Inc.

  • The removal and degradation of pharmaceutical compounds during membrane bioreactor treatment

    Pharmaceutical compounds such as non-steroidal anti-inflammatory drugs (NSAIDs) and antibiotics have been detected in sewage treatment plant (STP) effluents, surface and ground water and even in drinking water all over the world, and therefore have developed as compounds of concern. Membrane bioreactor (MBR) treatment has gained significant popularity as an advanced wastewater treatment ...


    By IWA Publishing

  • 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.

  • Performance of pilot submerged membrane bioreactor treatment systems in girdwood, Alaska

    ABSTRACT The Anchorage Water and Wastewater Utility (AWWU) has conducted pilot testing of an Enviroquip submerged membrane bioreactor (SMBR) and a ZENON SMBR at the Girdwood Wastewater Treatment Facility (GWWTF) located in Girdwood, Alaska. The Girdwood wastewater is unique relative to other municipal wastewaters in that it is dilute, weak and typically low-temperature. This paper summarizes ...

  • Membrane bioreactor application within the treatment of high-strength textile effluent

    A pilot-scale dual-stage membrane bioreactor (dsMBR) incorporating two ultra-filtration (UF) side-stream membrane modules was designed, constructed, operated and evaluated on-site for treating high-strength textile effluent. The effluent stream was characterised by a COD range of between 45 to 2,820 mg/L and an average BOD of 192.5 mg/L. The dsMBR achieved an average COD reduction of 75% with a ...


    By IWA Publishing

  • On-site treatment of used wash-water using biologically activated membrane bioreactors operated at different solids retention times

    Biologically activated membrane bioreactors (BAMBis) were operated at suspended solids retention times (SRT) of 7 and 102 days and at full solids retention. The effect of these different approaches of operation on the substrate and nutrient conversion, and on permeate flux, was investigated. Variations in organic loads and aeration intensities were also studied. Permeate flux stabilized during ...


    By IWA Publishing

  • Membrane Bioreactors for RO Pretreatment

    ABSTRACTCurrently, treated municipal wastewater is typically discharged to the environment in most parts of the world. It is, however, a potential water resource from which high quality water for reuse can be produced. Reuse applications include both non-potable applications such as irrigation and production of industrial process water, and indirect potable reuse including aquifer recharge. For ...

  • Future Perspectives in Bioreactor Development

    The paper discusses conversion capacities of both anaerobic and aerobic wastewater treatment systems in relation to growth kinetics, hydrodynamics and biomass concentration. In the current modern anaerobic high-rate reactors the conversion potentials are optimally exploited. This is not yet true for aerobic systems since operation of aerobic systems under conditions of low biomass growth reduces ...


    By Paques B.V.

  • Fate of organic pollutants in a pilot-scale membrane bioreactor-nanofiltration membrane system at high water yield in antibiotic wastewater treatment

    A double membrane system combining a membrane bioreactor (MBR) with a nanofiltration (NF) membrane at the pilot scale was tested to treat real antibiotic wastewater at a pharmaceutical company in Wuxi (China). The water yield of the pilot system reached over 92 ± 5.6% through recycling the NF concentrate to the MBR tank. Results showed that the pilot scale system operated in good ...


    By IWA Publishing

  • Dissolved air flotation separation for pretreatment of membrane bioreactor in domestic wastewater treatment

    Due to requiring higher water quality standards over time, new technologies are being employed for wastewater treatment. Dissolved air flotation (DAF) and membrane bioreactor (MBR) technologies are widely employed as new technologies in wastewater treatment. DAF is used due to its excellent separation capability of suspended solids as well as oily material. MBR is used because it may provide a ...


    By IWA Publishing

  • Operation of an anaerobic filter compared with an anaerobic moving bed bioreactor for the treatment of waste water from hydrothermal carbonisation of fine mulch

    This experimental study investigates the anaerobic digestion of waste water from hydrothermal carbonisation of fine mulch (wood chips) in combination with a co-substrate for the first time. Two anaerobic reactors, an anaerobic filter (AF) and an anaerobic moving bed bioreactor (AnMBBR), were operated over a period of 131 days at mesophilic conditions. The organic loading rate was increased to ...


    By IWA Publishing

  • Tomato Processor Pilot Bioreactor

    98% Average Reduction in BOD & TSS A tomato processing facility was required by the city to reduce BOD from 4,000 ppm to 200 ppm. Integrated Engineers proposed a small scale Bioreactor to prove the effectiveness of the activated sludge process on the customer’s wastewater as well as establishing the parameters for a full scale system design. The trailer mounted ...


    By Integrated Engineers Inc.

  • Membrane Bioreactor for Retirement Community

    The facility: Glen Meadows is a retirement community located next to Gunpowder Falls State Park in north-central Maryland’s open country.  The community has Independent Living, Assisted Living, and Skilled Nursing and Rehabilitation facilities. The problem: The facility has grown significantly over the years. At first, a septic system ...


    By Dynatec Systems Inc.

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