School of Applied Sciences (SAS) (2006-July 2014)

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Browsing School of Applied Sciences (SAS) (2006-July 2014) by Course name "Waste and Resource Management"

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    Renewable energy, landfill gas and EfW: now, next and future
    (Cranfield University, 2009-09) Adu-Gyamfi, Kofi Apea; Coulon, Frederic; Villa, Raffaella
    The United Kingdom (UK) has traditionally used landfill disposal as the predominant method of waste management. However, landfilling is unsustainable due to its harmful effects on the environment and public health. Under the European Union (EU) Landfill Directive (LFD), member nations are now required to divert biodegradable municipal waste (BMW) from landfills. At the same time, the UK has committed to the EU Renewable Energy Directive, which binds it to sourcing at least 15% of its energy mix from renewables by 2020. To meet these targets, the UK has to support alternative waste management options whilst achieving a considerable deployment of renewable energy technologies. The uptake of renewables displaces the use of fossil fuels and is important for climate change mitigation and future energy security. This research reviews the development of landfill gas utilisation and energy from waste (EfW) technologies as renewable energy sources in UK. The drivers, barriers and future trends of these technologies are also considered. The main findings of this study are that the most cost-beneficial EfW applications for the UK are: 1) Biomethane use as road transport fuel and 2) Small-scale EfW deployment at community level. These two options are easily implemented able and would result in substantial savings in carbon-dioxide (CO2) emissions. Land fill gas (LFG) utilisation is currently the most important source of UK renewable energy but outputs of LFG would decline due to impact of the LFD. It is therefore crucial that the UK develops the capacity of other renewables. This study concludes that EfW technologies can contribute up to 50% of UK renewables target by 2020. However, actual results would depend on the pace of investment in EfW projects and the availability of suitable feedstock.
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    Waste management within a public organisation
    (Cranfield University, 2008-09) Dlamini, Delly; Drew, Gill H.
    Through air pollution from landfill, the increase in waste generation poses a local and global threat to the environment. The UK government recognises organisations’ contribution to meeting raised targets for waste recycling. This research therefore, shows that organisational waste, associated with office operations is produced in large quantities and hence, very significant in contributing towards meeting national recycling targets. The paper addresses two key areas in managing organisational office waste for sustainable development within a public organisation. First, office waste recycling logistics were examined and secondly, the link between sustainable waste management practices such as recycling and the dissemination of information to participants about waste schemes and their ultimate success was investigated. Waste policies and implementation strategies were found to be the determinants of waste management program’s effectiveness. Organisational policy and strategy were identified as drivers in mainstreaming effective waste management within an organisation, especially participation in recycling schemes and waste minimisation. Simultaneously, recycling levels and levels of waste awareness within an office showed a positive relationship. The results show that continuous waste awareness promotions are key to translating high awareness levels into action among recycling participants in the organisation. Overall, an expected reduction in waste destined for landfill was reciprocated by an increase in material collected for recycling. The implications for organisational policy making to ensure staff sustainable waste management behaviour in organisations are also explored.