membrane bioreactor MBR Articles

Meliadine mine - Case study

We have been approached by the Company H2O Innovation Inc. to supply bugs for the start up of a membrane bioreactor (MBR). Meliadine mine is located in Nunavut in the remote northern part of ...

May 29, 2017

By Probiosphere Inc.

Energy Usage and Control at a Membrane Bioreactor Facility

Membrane bioreactor (MBR) treatment has come of age in the United States, and is now considered for advanced treatment on facilities of 15 mgd and more. It offers the advantages of high clarity effluent without secondary clarifiers or filters, and the capability to perform in a very compact layout and configuration. As utility agencies consider MBR treatment, they may tend to overlook its high ...

Oct. 21, 2006

By Water Environment Federation (WEF)

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 ...

Dec. 20, 2007

By Inderscience Publishers

Commissioning and operating submerged membrane bioreactors: a designer's perspective

Submerged Membrane Bioreactor (MBR) applications for wastewater treatment have taken off in recent years in New Zealand. From designer perspectives, the membrane modules replace the conventional secondary clarifier, thus eliminating solids settling issues and reducing plant footprint. This paper discusses the recent experiences of Harrison Grierson Consultants Limited designing and commissioning ...

Jun. 8, 2009

By Inderscience Publishers

Effect of phosphorus concentration on phosphorus removal and biomass

Membrane bioreactor (MBR) process was employed to study the effect of biological phosphorus removal (bio-P removal) and P-content in treated sludge with increased phosphorus concentration present in the wastewater. Further, the following four test fractions of raw wastewaters was obtained having different P-concentrations viz., run 1: P-20 mg/L, run 2: P-40 mg/L, run 3: P-60 mg/L, run 4: P-80 ...

Jan. 1, 2011

By IWA Publishing

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 ...

May 27, 2014

By Inderscience Publishers

Low dissolved oxygen membrane bioreactor processes (LDO–MBRs): a review

Aeration energy demands for bioprocesses and membrane scouring in membrane bioreactors (MBRs) account for 50% to over 70% of the total operational energy consumption. Energy saving achieved by operating MBRs under low dissolved oxygen (DO) would be an interesting approach to bring MBRs to higher levels of efficiency. This review paper is first carried out to provide a systematic investigation on ...

Apr. 1, 2013

By Inderscience Publishers

Enhanced Biological Phosphorus Removal within Membrane Bioreactors

Several Membrane Bioreactor (MBR) facilities have been constructed with the intent of providing Enhanced Biological Phosphorus Removal (EBPR), and several additional such plants are being designed and constructed. Full-scale plant information is now available for process designers to better understand the unique design and operating issues associated with the incorporation of EBPR designs in ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Oily wastewater treatment using membrane bioreactor

A novel implementation of a membrane bioreactor (MBR) has been studied in this paper. It is utilised as combination of rotating biological contractor (RBC) and an external membrane for oily wastewater treatment. The performance of MBR was compared with the standalone RBC. The RBC used in this investigation is the same one combined with the membrane to form the MBR. Wastewater biodegradability has ...

May 27, 2014

By Inderscience Publishers

SANASA Capivari II – the first full-scale municipal membrane bioreactor in Latin America

The macro region of Campinas (Brazil) is rapidly evolving with new housing developments and industries, creating the challenge of finding new ways to treat wastewater to a quality that can be reused in order to overcome water scarcity problems. To address this challenge, SANASA (a publicly owned water and wastewater concessionaire from Campinas) has recently constructed the ‘EPAR (Water ...

Jul. 23, 2014

By IWA Publishing

Influence of shear on nitrification rates in a membrane bioreactor

Grundfos BioBooster (GBB) installed and operated a membrane bioreactor (MBR) test plant in 2012. During the period it became evident that the nitrification rate was lower than expected and a study was carried out to investigate the possible reasons for the observed low-nitrification rate. Tests were conducted at a pilot plant and the effect of shear from the BioBooster membrane system and the ...

Apr. 24, 2014

By IWA Publishing

The Effect of Biomass Particle Characteristics on the Sorption Hysteresis of 17α-Ethinylestradiol

The effects of particle characteristics on sorption and hysteresis of 17α-ethinylestradiol (EE2) were investigated in membrane bioreactor (MBR) and sequencing batch reactor (SBR). These results showed that the magnitude of the sorption partitioning coefficient depended on the particle specific surface area. This study also found that the sorption hysteresis index was greater for biomass ...

Oct. 21, 2006

By Water Environment Federation (WEF)

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), ...

Feb. 26, 2015

By IWA Publishing

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 ...

Feb. 1, 2012

By IWA Publishing

Nitrogen removal using an anammox membrane bioreactor at low temperature

Membrane bioreactors (MBRs) have the ability to completely retain biomass and are thus suitable for slowly growing anammox bacteria. In the present study, an anammox MBR was operated to investigate whether the anammox activity would remain stable at low temperature, without anammox biomass washout. The maximum nitrogen removal rates were 6.7 and 1.1 g-N L−1 day−1 at 35 °C and 15 °C, ...

Aug. 17, 2015

By IWA Publishing

Comparison of nutrient-removing microbial communities in activated sludge from full-scale MBRs and conventional plants

The composition of nutrient-removing microbial communities in five full-scale membrane bioreactors (MBRs) was investigated using fluorescence in situ hybridization and 16S rRNA pyrosequencing and compared to similar analyses of conventional activated sludge (CAS) communities. The communities were highly similar but some genera that are always present in enhanced biological phosphorus removal ...

Jul. 19, 2013

By IWA Publishing

MBR Operation

Although membrane bioreactor (MBR) technology has grown up to become a state-of-the-art in municipal wastewater treatment during the last decade, design, construction and operation of MBRs has not yet become a routine function. An insight into the practice of MBR technology will be available as a report at IWA Publishing by October 2010. ‘Operating Large-Scale Membrane ...

Feb. 8, 2012

By IWA Publishing

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 ...

Jun. 5, 2014

By IWA Publishing

Modular operation of membrane bioreactors for higher hydraulic capacity utilisation

Using data from 6 full-scale municipal membrane bioreactors (MBR) in Germany the hydraulic capacity utilisation and specific energy consumption were studied and their connexion shown. The average hydraulic capacity utilisation lies between 14% and 45%. These low values are justified by the necessity to deal with intense rain events and cater for future flow increases. However, this low hydraulic ...

Mar. 1, 2011

By IWA Publishing

Energy efficiency in membrane bioreactors

Energy consumption remains the key factor for the optimisation of the performance of membrane bioreactors (MBRs). This paper presents the results of the detailed energy audits of six full-scale MBRs operated by Suez Environnement in France, Spain and the USA based on on-site energy measurement and analysis of plant operation parameters and treatment performance. Specific energy consumption is ...

Jun. 21, 2013

By IWA Publishing