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Browsing by Author "McLeod, Andrew J."

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Biogas enhancement with membranes

McLeod, Andrew J. (Cranfield University, 2014-04)

Biogas is generated during anaerobic digestion (AD) of sewage sludge at wastewater treatment works (WWTW) and consists of approximately 50-70 % methane (CH4) balanced primarily by carbon dioxide (CO2). It is commonly ...
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 ...
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 ...
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 ...
The effect of maintenance on the performance of sand-filled synthetic turf surfaces

James, Iain T.; McLeod, Andrew J. (2010-09-27)

The effect of infill quantity and contamination on the performance of second generation sand-filled synthetic turf sports surfaces was investigated in a laboratory study. Three 1m2 test surfaces were constructed by placing ...
The management and maintenance of second generation sand-filled synthetic sports pitches

McLeod, Andrew J. (Cranfield UniversitySchool of Applied Sciences, 2008-01)

Synthetic sports surfaces have increased in popularity since their introduction into the United Kingdom in the early 1970's. In many sports, such as hockey and athletics, they have become the standard for play. The benefit ...
Quantifying the loss of methane through secondary gas mass transport (or 'slip') from a micro-porous membrane contactor applied to biogas upgrading

McLeod, Andrew J.; Jefferson, Bruce; McAdam, Ewan J. (IWA Publishing, 2013-04-29)

Secondary gas transport during the separation of a binary gas with a micro-porous hollow fibre membrane contactor (HMFC) has been studied for biogas upgrading. In this application, the loss or ‘slip' of the secondary gas ...
Toward gas-phase controlled mass transfer in micro-porous membrane contactors for recovery and concentration of dissolved methane in the gas phase

McLeod, Andrew J.; Jefferson, Bruce; McAdam, Ewan J. (Elsevier, 2016-03-18)

A micro-porous hollow fibre membrane contactor (HFMC) operated in sweep-gas mode has been studied to enable the recovery of dissolved methane from water in concentrated form. At high sweep-gas flow rates, up to 97% dissolved ...

Browsing by Author "McLeod, Andrew J."

Browsing by Author "McLeod, Andrew J."

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