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Browsing by Author "McAdam, Ewan J."

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Ammonia recovery from brines originating from a municipal wastewater ion exchange process and valorization of recovered nitrogen into microbial protein

Guida, Samuela; Van Peteghem, Lotte; Luqmani, Ben; Sakarika, Myrsini; McLeod, Andrew; McAdam, Ewan J.; Jefferson, Bruce; Rabaey, Korneel; Soares, Ana (Elsevier, 2021-06-18)

A hollow fibre membrane contactor (HFMC), and two vacuum thermal stripping processes, a rotary evaporator (VTS) and multi-component system (MVTS) were compared for their ability to recover ammonia (NH3) from ion exchange ...
Anaerobic workout

McAdam, Ewan J. (Institution of Chemical Engineers, 2010-11-30)

Anaerobic technology cannot directly replace current wastewater treatment processes exclusively. The UASB reactor configuration removes slightly less organic carbon by comparison as the process relies on lamella separation ...
Assessing potential modifications to the activated sludge process to improve simultaneous removal of a diverse range of micropollutants

Petrie, Bruce; McAdam, Ewan J.; Lester, John N.; Cartmell, Elise (Elsevier Science B.V., Amsterdam., 2014-10-01)

It is proposed that wastewater treatment facilities meet legislated discharge limits for a range of micropollutants. However, the heterogeneity of these micropollutants in wastewaters make removal difficult to predict since ...
Biogas upgrading by chemical absorption using ammonia rich absorbents derived from wastewater

McLeod, Andrew J.; Jefferson, Bruce; McAdam, Ewan J. (IWA Publishing, 2014-09-18)

The use of ammonia (NH3) rich wastewaters as an ecological chemical absorption solvent for the selective extraction of carbon dioxide (CO2) during biogas upgrading to ‘biomethane’ has been studied. Aqueous ammonia absorbents ...
Briefing: Negotiating value at the research–practice interface in the water sector

Jeffrey, Paul; McAdam, Ewan J.; Templeton, Michael R.; Savic, Dragan; Shucksmith, James; Amezaga, Jaime; Gormey-Gallagher, Aine (Thomas Telford (ICE Publishing), 2015-09-01)

Lessons from experiences of managing an engineering doctorate programme are delineated in this paper, with particular emphasis on the relationship between research and practice. The paper reports on applied, practice-oriented ...
Characterization of full-scale carbon contactors for siloxane removal from biogas using online Fourier transform infrared spectroscopy

Hepburn, C. A.; Martin, B. D.; Simms, Nigel J.; McAdam, Ewan J. (Taylor & Francis, 2014-07-31)

In this study, online Fourier transform infrared (FTIR) spectroscopy has been used to generate the first comprehensive characterization of full-scale carbon contactors for siloxane removal from biogas. Using FTIR, two clear ...
Chemically reactive membrane crystallisation reactor for CO2–NH3 absorption and ammonium bicarbonate crystallisation: Kinetics of heterogeneous crystal growth

Bavarella, Salvatore; Brookes, Adam; Moore, Andrew; Vale, Peter; Di Profio, Gianluca; Curcio, Efrem; Hart, Phil; Pidou, Marc; McAdam, Ewan J. (Elsevier, 2019-11-22)

The feasibility of gas-liquid hollow fibre membrane contactors for the chemical absorption of carbon dioxide (CO2) into ammonia (NH3), coupled with the crystallisation of ammonium bicarbonate has been demonstrated. In this ...
CO2 absorption into aqueous ammonia using membrane contactors: Role of solvent chemistry and pore size on solids formation for low energy solvent regeneration

Bavarella, S.; Luqmani, Ben; Thomas, Navya; Brookes, Adam; Moore, A.; Vale, P.; Pidou, Marc; McAdam, Ewan J. (Elsevier, 2022-03-16)

Solids formation can substanitally reduce the energy penalty for ammonia solvent regeneration in carbon capture and storage (CCS), but has been demonstrated in the literature to be difficult to control. This study examines ...
Conceptual energy and water recovery system for self-sustained nano membrane toilet

Hanak, Dawid P.; Kolios, Athanasios; Onabanjo, Tosin; Wagland, Stuart Thomas; Patchigolla, Kumar; Fidalgo Fernandez, Beatriz; Manovic, Vasilije; McAdam, Ewan J.; Parker, Alison; Williams, Leon; Tyrrell, Sean; Cartmell, Elise (Energy Conservation and Management, 2016-08-12)

With about 2.4 billion people worldwide without access to improved sanitation facilities, there is a strong incentive for development of novel sanitation systems to improve the quality of life and reduce mortality. The ...
Controlling shell-side crystal nucleation in a gas-liquid membrane contactor for simultaneous ammonium bicarbonate recovery and biogas upgrading

McLeod, Andrew J.; Autin, Olivier; Jefferson, Bruce; McAdam, Ewan J. (Elsevier, 2014-09-17)

A gas–liquid hollow fibre membrane contactor (HFMC) process has been introduced for carbon dioxide (CO2) separation from biogas where aqueous ammonia (NH3) is used to chemically enhance CO2 absorption and initiate heterogeneous ...
Demonstrating commercial hollow fibre membrane contactor performance at industrial scale for biogas upgrading at a sewage treatment works

Houlker, Sam; Rutherford, Tony; Herron, Daniel; Brookes, Adam; Moore, Andrew; Vale, Peter; Pidou, Marc; McAdam, Ewan J. (MDPI, 2021-01-13)

Hollow fibre membrane contactor (HFMC) technology has been developed for CO2 absorption primarily using synthetic gas, which neglects the critical impact that trace contaminants might have on separation efficiency and ...
Denitrification using immersed membrane bioreactors

McAdam, Ewan J. (Cranfield University, 2008-10)

Nitrate is practically ubiquitous in waters abstracted for municipal potable water production in Europe due to decades of intensive agricultural practice. Ion exchange is principally selected to target abstracted waters ...
Development of on-line FTIR spectroscopy for siloxane detection in biogas to enhance carbon contactor management

Hepburn, Caroline; Vale, P.; Brown, A. S.; Simms, Nigel J.; McAdam, Ewan J. (Elsevier, 2015-04-04)

Activated carbon filters are used to limit engine damage by siloxanes when biogas is utilised to provide electricity. However, carbon filter siloxane removal performance is poorly understood as until recently, it had not ...
Diagnosis of an anaerobic pond treating temperate domestic wastewater: An alternative sludge strategy for small works

Cruddas, Peter; Wang, K.; Best, D.; Jefferson, Bruce; Cartmell, Elise; Parker, Alison; McAdam, Ewan J. (Elsevier, 2014-01-15)

An anaerobic pond (AP) for treatment of temperate domestic wastewater has been studied as a small works sludge management strategy to challenge existing practice which comprises solids separation followed by open sludge ...
Dissolved gas separation for engineered anaerobic wastewater systems

Heile, S.; Chernicharo, C. A. L.; Brandt, E. M. F.; McAdam, Ewan J. (Elsevier, 2017-08-09)

Dissolved gases produced within engineered anaerobic processes subsequently create a fugitive emission which can have financial, environmental and health and safety implications. Whilst desorption technology has been used ...
Dissolved methane recovery from anaerobic effluents using hollow fibre membrane contactors

Cookney, Joanna; McLeod, Andrew J.; Mathioudakis, Vasileios; Ncube, Philani; Soares, Ana; Jefferson, Bruce; McAdam, Ewan J. (Elsevier, 2015-12)

Hollow fibre membrane contactor (HFMC) systems have been studied for the desorption of dissolved methane from both analogue and real anaerobic effluents to ascertain process boundary conditions for separation. When using ...
Electrochemically generated bimetallic reductive mediator Cu1+ [Ni2+ (CN) 4] 1− for the degradation of CF4 to ethanol by electro-scrubbing

Muthuraman, G.; Ramu, A. G.; Cho, Y-H; McAdam, Ewan J.; Moon, I. S. (SAGE, 2018-10-10)

Remediation of electronic gas CF4 using commercially available technologies results in another kind of greenhouse gas and corrosive side products. This investigation aimed to develop CF4 removal at room temperature with ...
Energy recovery from human faeces via gasification: A thermodynamic equilibrium modelling approach

Onabanjo, Tosin; Patchigolla, Kumar; Wagland, Stuart Thomas; Fidalgo Fernandez, Beatriz; Kolios, Athanasios; McAdam, Ewan J.; Parker, Alison; Williams, Leon; Tyrrel, Sean; Cartmell, Elise (Elsevier, 2016-04-01)

Non-sewered sanitary systems (NSS) are emerging as one of the solutions to poor sanitation because of the limitations of the conventional flush toilet. These new sanitary systems are expected to safely treat faecal waste ...
Establishing the mechanisms underpinning solids breakthrough in UASB configured anaerobic membrane bioreactors to mitigate fouling

Wang, Kanming; Soares, Ana; Jefferson, Bruce; Wang, Hongyu; Zhang, L. J.; Jiang, Shengfeng; McAdam, Ewan J. (Elsevier, 2020-03-26)

In this study, the mechanisms for solids breakthrough in upflow anaerobic sludge blanket (UASB) configured anaerobic membrane bioreactors (AnMBRs) have been described to establish design parameters to limit membrane fouling. ...
An experimental investigation of the combustion performance of human faeces

Onabanjo, Tosin; Kolios, Athanasios; Patchigolla, Kumar; Wagland, Stuart Thomas; Fidalgo Fernandez, Beatriz; Jurado Pontes, Nelia; Hanak, Dawid P.; Manovic, Vasilije; Parker, Alison; McAdam, Ewan J.; Williams, Leon; Tyrrel, Sean F.; Cartmell, Elise (Elsevier, 2016-07-27)

Poor sanitation is one of the major hindrances to the global sustainable development goals. The Reinvent the Toilet Challenge of the Bill and Melinda Gates Foundation is set to develop affordable, next-generation sanitary ...

Browsing by Author "McAdam, Ewan J."

Browsing by Author "McAdam, Ewan J."

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