Fate and impact of organics in an immersed membrane bioreactor applied to brine denitrification and ion exchange regeneration.

doi:10.1016/J.WATRES.2009.08.048

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Journal Article•DOI•

Recovery of methane from anaerobic process effluent using poly-di-methyl-siloxane membrane contactors

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Joanna Cookney¹, Elise Cartmell¹, Bruce Jefferson¹, Ewan J. McAdam¹•Institutions (1)

Cranfield University¹

01 Feb 2012-Water Science and Technology

TL;DR: Results from this study demonstrate that dissolved methane recovery could increase net electrical production from low temperature anaerobic processes by ca.

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Journal Article•DOI•

Fouling Issues in Membrane Bioreactors (MBRs) for Wastewater Treatment: Major Mechanisms, Prevention and Control Strategies

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Petros Gkotsis, Dimitra C. Banti, Efrosini N. Peleka, Anastasios I. Zouboulis, Petros Samaras - Show less +1 more

20 Oct 2014

TL;DR: In this article, the authors present the fundamentals of fouling issues in membrane separations, with specific regard to membrane fouling in Membrane Bioreactors and the most frequently applied preventive-control strategies.

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Abstract: Membrane fouling is one of the most important considerations in the design and operation of membrane systems as it affects pretreatment needs, cleaning requirements, operating conditions, cost and performance. Given that membrane fouling represents the main limitation to membrane process operation, it is unsurprising that the majority of membrane material and process research and development conducted is dedicated to its characterization and amelioration. This work presents the fundamentals of fouling issues in membrane separations, with specific regard to membrane fouling in Membrane Bioreactors (MBRs) and the most frequently applied preventive-control strategies. Feed pretreatment, physical and chemical cleaning protocols, optimal operation of MBR process and membrane surface modification are presented and discussed in detail. Membrane fouling is the major obstacle to the widespread application of the MBR technology and, therefore, fouling preventive-control strategies is a hot issue that strongly concerns not only the scientific community, but industry as well.

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97 citations

Journal Article•DOI•

Photocatalytic reduction of nitrate using titanium dioxide for regeneration of ion exchange brine.

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Ting Yang¹, Kyle Doudrick², Paul Westerhoff²•Institutions (2)

Northwest A&F University¹, Arizona State University²

01 Mar 2013-Water Research

TL;DR: This work presents a strategy to photocatalytically reduce nitrate in IX brine, thereby extending the use of the brine and investigating the impact of residual FA for brine reuse.

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Journal Article•DOI•

Brine Effluents: Characteristics, Environmental Impacts, and Their Handling

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Danu Ariono¹, Mubiar Purwasasmita¹, I Gede Wenten¹•Institutions (1)

Bandung Institute of Technology¹

30 Sep 2016-Journal of Engineering and Technological Sciences

TL;DR: In this paper, an overview of different types of brine effluents, their sources and characteristics are discussed, as well as impacts of brines on the environment and management options related to their characteristics.

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Abstract: Brine discharge is one of the largest sources of wastewater from industrial processes. Because of the environmental impacts arising from improper treatment of brine discharge and more rigorous regulations of pollution control, industries have started to focus on waste minimization and improving the process of wastewater treatment. Several approaches have been proposed to provide a strategy for brine handling by recovering both brine and water or to remove pollutant components so it complies with environmental regulations when discharged. One of the most promising alternatives to brine disposal is reusing the brine, which results in reduction of pollution, minimizing waste volume and salt recovery. The brine may also contain valuable components that could be recovered for profitable use. Also, water recovery from brine effluent is generally performed to save water. In the case of rejected brine from desalination plants, water recovery from higher brine concentrations has huge potential for salt production. This paper gives an overview of different types of brine effluents, their sources and characteristics. Also discussed are impacts of brine on the environment and management options related to their characteristics.

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Biogas upgrading by chemical absorption using ammonia rich absorbents derived from wastewater.

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Andrew J. McLeod¹, Bruce Jefferson¹, Ewan J. McAdam¹•Institutions (1)

Cranfield University¹

15 Dec 2014-Water Research

TL;DR: This demonstrates that ammonia rich wastewaters can facilitate chemically enhanced CO2 separation which eliminates the need for costly exogenic chemicals or complex chemical handling which are critical barriers to implementation of chemical absorption.

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42 citations

Cites methods from "Fate and impact of organics in an i..."

...…of clinoptilolite resin (RS Minerals, Guisborough, UK) and was prepared by passing a 50 gNaCl L -1 (99%, Fisher Chemicals, Loughborough, UK) regenerant through the column at 5 bed volumes per hour (Bv h-1) for 30 minutes followed by a DI rinse at 5 Bv h-1 for 60 minutes (McAdam et al., 2010) (Fig....
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Journal Article•DOI•

Influence of substrate on fouling in anoxic immersed membrane bioreactors.

[...]

Ewan J. McAdam¹, Simon J. Judd¹, Elise Cartmell¹, Bruce Jefferson¹•Institutions (1)

Cranfield University¹

01 Sep 2007-Water Research

TL;DR: The influence of carbon substrate chemistry on membrane bioreactor (MBR) fouling in anoxic conditions has been evaluated and the use of ethanol resulted in sufficient suppression of fouling to extend the filtration time by a factor of three.

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26 citations

"Fate and impact of organics in an i..." refers background in this paper

..., 2007), research studies typically observe low NO2-N and 153 NO3-N effluent concentrations as the optimum C:N is exceeded due to the surplus of 154 available carbon (Chiu and Chung, 2003; McAdam et al., 2007)....
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...Although the existence of an optimum C:N has been reported 152 previously (McAdam et al., 2007), research studies typically observe low NO2-N and 153 NO3-N effluent concentrations as the optimum C:N is exceeded due to the surplus of 154 available carbon (Chiu and Chung, 2003; McAdam et al....
[...]
...Although the existence of an optimum C:N has been reported 152 previously (McAdam et al., 2007), research studies typically observe low NO2--N and 153 NO3--N effluent concentrations as the optimum C:N is exceeded due to the surplus of 154 available carbon (Chiu and Chung, 2003; McAdam et al., 2007)....
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Book Chapter•DOI•

Comparison of Extraction Methods

[...]

John R. Dean¹•Institutions (1)

Northumbria University¹

29 Dec 2009

24 citations

"Fate and impact of organics in an i..." refers methods in this paper

...Soluble microbial products 119 (SMP) were extracted according to the method described in Judd (2006) and 120 polysaccharide and protein concentration quantified using the phenol–sulphuric acid 121 method (Zhang et al., 1999) and modified Lowry method (Frølund et al., 1995) 122 respectively....
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...Soluble microbial products 119 (SMP) were extracted according to the method described in Judd (2006) and 120 polysaccharide and protein concentration quantified using the phenol–sulphuric acid 121 method (Zhang et al., 1999) and modified Lowry method (Frølund et al....
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Fate and impact of organics in an immersed membrane bioreactor applied to brine denitrification and ion exchange regeneration.

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"Fate and impact of organics in an i..." refers background in this paper

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