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Browsing by Author "Tyrrel, Sean"

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The absence or presence of a lytic coliphage affects the response of Escherichia coli to heat, chlorine, or UV exposure

Ameh, Ekwu M.; Tyrrel, Sean; Harris, Jim A.; Ignatiou, Athanasios; Orlova, Elena; Nocker, Andreas (Springer, 2018-03-15)

Disinfection aims at maximal inactivation of target organisms and the sustainable suppression of their regrowth. Whereas many disinfection efforts achieve efficient inactivation when the effect is measured directly after ...
Air quality and mental health: evidence, challenges and future directions

Bhui, Kamaldeep; Newbury, Joanne B.; Latham, Rachel M.; Ucci, Marcella; Nasir, Zaheer A.; Turner, Briony; O'Leary, Catherine; Fisher, Helen L.; Marczylo, Emma; Douglas, Philippa; Stansfeld, Stephen; Jackson, Simon K.; Tyrrel, Sean; Rzhetsky, Andrey; Kinnersley, Rob; Kumar, Prashant; Duchaine, Caroline; Coulon, Frederic (Cambridge University Press (CUP), 2023-07-05)

Background: Poor air quality is associated with poor health. Little attention is given to the complex array of environmental exposures and air pollutants that affect mental health during the life course. Aims: ...
Anaerobic Digestion Foaming Causes

Ganidi, Nafsika (Cranfield University, 2008-10)

Anaerobic digestion foaming has been encountered in several sewage treatment plants in the UK. Foaming has raised major concerns for the water utilities due to significant impacts on process efficiency and operational ...
Assessing consistency in the aerobic co-composting of faecal sludge and food waste in a municipality in Ghana

Nartey, Eric Gbenatey; Sakrabani, Ruben; Tyrrel, Sean; Cofie, Olufunke (Springer, 2023-10-30)

Background: A faecal sludge (FS) co-composting study assessed the extent of consistency in compost characteristics between and within batches. The study focused on the consistency of the co-composting process by measuring ...
Bioaerosol emissions from open windrow composting facilities : emission characterisation and dispersion modelling improvements

Douglas, Philippa (Cranfield University, 2013-06)

Bioaerosol emissions from open windrow composting facilities are becoming of increasing concern due to the negative health effects associated with bioaerosols, and the fact that emissions from open windrow facilities are ...
Can chemical and molecular biomarkers help discriminate between industrial, rural and urban environments?

Garcia Alcega, Sonia; Nasir, Zaheer A.; Ferguson, Robert M. W.; Noël, Cyril; Cravo-Laureau, Cristiana; Whitby, Corinne; Dumbrell, Alex J.; Colbeck, Ian; Tyrrel, Sean; Coulon, Frederic (Elsevier, 2018-03-16)

Air samples from four contrasting outdoor environments including a park, an arable farm, a waste water treatment plant and a composting facility were analysed during the summer and winter months. The aim of the research ...
Characterisation and disersal of bioaerosols emitted from composting facilities

Tamer Vestlund, Asli (Cranfield University, 2009-07)

The role of sustainable and natural waste management processes such as composting are increasingly becoming more important in tackling the current environmental challenge of the amount of waste that is being produced. ...
Competitive exclusion as a means to reduce Escherichia coli regrowth in digested sludge

Williams, Tyson (Cranfield University, 2014-09)

In recent years, it has been reported that numbers of Escherichia coli increase significantly following centrifugation of sludge during the treatment process. E. coli is used as an indicator of the microbiological quality ...
Conceptual environmental impact assessment of a novel self-sustained sanitation system incorporating a Quantitative Microbial Risk Assessment approach

Anastasopoulou, Aikaterini; Kolios, Athanasios; Somorin, Tosin; Sowale, Ayodeji; Jiang, Ying; Fidalgo, Beatriz; Parker, Alison; Williams, Leon; Collins, Matt; McAdam, Ewan; Tyrrel, Sean (Elsevier, 2018-05-26)

In many developing countries, including South Africa, water scarcity has resulted in poor sanitation practices. The majority of the sanitation infrastructures in those regions fail to meet basic hygienic standards. This ...
A conceptual framework for negotiating public involvement in municipal waste management decision-making in the UK

Garnett, Kenisha; Cooper, Tim; Longhurst, Philip J.; Jude, Simon; Tyrrel, Sean (Elsevier, 2017-04-13)

The technical expertise that politicians relied on in the past to produce cost-effective and environmentally sound solutions no longer provides sufficient justification to approve waste facilities. Local authorities need ...
Control of E.coli in biosolids

Fane, Sarah Elizabeth (Cranfield University, 2016-11)

Achieving microbial compliance levels in biosolids storage is complicated by the unpredictable increase of Escherichia coli (E. coli), which serves as an important indicator for pathogen presence risk. Meeting required ...
A controlled study on the characterisation of bioaerosols emissions from compost

Nasir, Zaheer A.; Rolph, Catherine A.; Collins, Samuel; Stevenson, David; Gladding, Toni L.; Hayes, Enda; Williams, Ben; Khera, Shagun; Jackson, Simon; Bennett, Allan; Parks, Simon; Kinnersley, Robert P.; Walsh, Kerry; Pollard, Simon J. T.; Drew, Gillian; Garcia Alcega, Sonia; Coulon, Frederic; Tyrrel, Sean (2018-09-28)

Bioaerosol emissions arising from biowaste treatment are an issue of public concern. To better characterise the bioaerosols, and to assess a range of measurement methods, we aerosolised green waste compost under controlled ...
Desalination technologies for developing countries: what solutions?

Groult, Lucille (Cranfield UniversitySAS, 2009-09)

Desalination is a water treatment option known by people at large for its large scale use in rich countries such as in the Middle East. Nevertheless, this is not an option for some developing countries such as Kenya, as, ...
Design and commissioning of a multi-mode prototype for thermochemical conversion of human faeces

Jurado Pontes, Nelia; Somorin, Tosin; Kolios, Athanasios J.; Wagland, Stuart; Patchigolla, Kumar; Fidalgo, Beatriz; Parker, Alison; McAdam, Ewan; Williams, Leon; Tyrrel, Sean (Elsevier, 2018-03-23)

This article describes the design and commissioning of a micro-combustor for energy recovery from human faeces, which can operate both in updraft and downdraft modes. Energy recovery from faecal matter via thermochemical ...
Detection and characterization of bioaerosol emissions from wastewater treatment plants: Challenges and opportunities

Tian, Jianghan; Yan, Cheng; Garcia Alcega, Sonia; Hassard, Francis; Tyrrel, Sean; Coulon, Frederic; Ahmad Nasir, Zaheer (Frontiers, 2022-11-10)

Rapid population growth and urbanization process have led to increasing demand for wastewater treatment capacity resulting in a non-negligible increase of wastewater treatment plants (WWTPs) in several cities around the ...
Development and evaluation of a rapid enzymatic hydrolysis test method to assess the biodegradability of organic waste

Wagland, Stuart Thomas (Cranfield University, 2008-11)

The amount of biodegradable municipal waste (BMW) that can be disposed of in a landfill must be reduced, in accordance with the landfill allowance trading scheme (LATS) in England and Scotland (LAS in Wales). Biodegradability ...
Disruption of cells in biosolids affects E. coli dynamics in storage

Fane, Sarah Elizabeth; Madureira, D.; Nocker, A.; Vale, P.; Rivas Casado, Monica; Wilson, A.; Bajón Fernández, Yadira; Harris, Jim A.; Cartmell, Elise; Tyrrel, Sean (IWA Publishing, 2019-05-22)

Achieving microbial compliance during biosolids storage can be complicated by the unpredictable increase of Escherichia coli. Thermal treatment during anaerobic digestion (AD) and the effects of dewatering may be a significant ...
Do domestic animals contribute to bacterial contamination of infant transmission pathways? Formative evidence from Ethiopia

Budge, Sophie; Hutchings, Paul; Parker, Alison; Tyrrel, Sean; Tulu, Tizita; Gizaw, Mesfin; Garbutt, Camila (IWA Publishing, 2019-08-26)

Child stunting is associated with poor water, sanitation and hygiene (WASH), partly due to the effect of infection on intestinal nutrient absorption. WASH interventions, however, show little effect on growth. A hypothesis ...
Do domestic animals contribute to bacterial contamination of infant transmission pathways? Formative evidence from Ethiopia

Budge, Sophie; Hutchings, Paul; Parker, Alison; Tyrrel, Sean; Tulu, Tizita; Gizaw, Mesfin; Garbutt, Camila (IWA Publishing, 2019-08-26)

Child stunting is associated with poor water, sanitation and hygiene (WASH), partly due to the effect of infection on intestinal nutrient absorption. WASH interventions however show little effect on growth. A hypothesis ...
The Effect of Green Waste Composting on the Concentration and Composition of Ambient Bioaerosols

Pankhurst, Louise J. (Cranfield University, 2010-01)

The emission and dispersal of bioaerosols from commercial composting facilities has become an issue of increasing concern over the past decade, as historical evidence links bioaerosol exposure to negative human health ...

Browsing by Author "Tyrrel, Sean"

Browsing by Author "Tyrrel, Sean"

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