scholarly journals Waste to energy and circular economy: the case of anaerobic digestion

2020 ◽  
Vol 33 (4) ◽  
pp. 817-838
Author(s):  
Zahid Hussain ◽  
Jyoti Mishra ◽  
Emanuela Vanacore
Keyword(s):  
Climate Change ◽  
Anaerobic Digestion ◽  
Technological Innovation ◽  
Circular Economy ◽  
Clean Energy ◽  
Environmental Benefits ◽  
Waste To Energy ◽  
Water Acidification ◽  
Content Type ◽  
The Uk

PurposeThis paper highlights how biological waste materials can be used for generating the much needed energy and obtaining nutrient-rich compost for agriculture through anaerobic digestion (AD). The paper further highlights the importance of small and medium enterprises (SMEs) in using AD for converting waste to energy (WTE), leading to many environmental benefits as well as clean energy generation. It would help to reduce pollution, water acidification and carbon emissions that eventually lead to climate change.Design/methodology/approachThe researchers undertook an in-depth study to highlight the role played by an SME in converting WTE and helping towards achieving circularity. An exploratory case-based approach was used to understand value leakage for an AD plant operating on WTE principles in the UK. The plant is still currently active, and it is located in the Midlands, England. Fifteen semi-structured interviews were undertaken with different stakeholders.FindingsThis paper reveals the importance of WTE and the significant role played by AD in converting food waste into useful matter. It reports further into the value leakage issue faced in the AD plants. It demonstrates the importance of technological innovation in SME to capture value leakages in a circular model. Most importantly, it demonstrates how SMEs gain competitive advantage and generate value proposition, while they aim for zero waste to landfill objective.Research limitations/implicationsThe research involves a case study based on an SME, operating on a circular business model. It will be worth investigating how other businesses could gain competitive advantage. For SMEs interested in AD for WTE, this paper introduces further technological innovation to the AD process to leverage further potential for reuse of waste liquid. Any SMEs entering WTE market ought to take into consideration such design implications.Practical implicationsThe paper reveals how the use of waste by SMEs would lead to many environmental benefits as well as clean energy generation. It would help to reduce pollution, water acidification and carbon emissions that eventually lead to climate change. It is useful for addressing the needs of waste food producers and is a cheap raw material for generating energy. The benefits to the public are that it reduces the need for landfill and increases recycling.Social implicationsThe WTE is an effective way of making use of last-stage waste.Originality/valueDespite SMEs being the powerhouse of the European economies, there is limited research investigating how circular economy (CE) could unlock their potential. Moreover, development of AD in the UK has lagged behind other EU countries. We highlight value leakages and argue how technological innovation should be used to close the value chain loop in the WTE production process. This paper, therefore, demonstrates the important role of an AD process, which involves decomposition of biodegradable materials. It shows that AD is an economically viable and environmentally friendly process of obtaining clean energy at low cost.

Circular economy investments will rise sharply

2021 ◽  
Keyword(s):  
Climate Change ◽  
Technological Innovation ◽  
Circular Economy ◽  
Natural World ◽  
Middle Income ◽  
Content Type ◽  
Sustainable Investment ◽  
Asset Managers

Significance A circular economy is one that avoids waste and pollution, keeps materials in use and replenishes the natural world, helping to limit climate change and promote biodiversity. Impacts In high- and middle-income nations especially, consumers will have to cut or adapt consumption if the circular economy is to flourish. Asset managers are likely to see more demand for circular economy funds as part of the broader move to sustainable investment. Technological innovation arising from circular economy initiatives could lead to more jobs being created.

Extreme weather highlights longer-term Canada concerns

2022 ◽  
Keyword(s):  
Climate Change ◽  
Indigenous Peoples ◽  
Clean Energy ◽  
Focused Attention ◽  
Content Type ◽  
Weather Patterns ◽  
Extreme Cold ◽  
The Impact ◽  
Ways Of Life ◽  
Impacts Of Climate Change

Significance The extreme cold comes as the province is still dealing with the damage caused by unprecedented levels of heat and wildfires last summer and then record levels of rainfall and flooding in November. Its experience has focused attention on Canada’s wider vulnerability to the impact of shifting weather patterns and climate change. Impacts The natural resource sectors that are vital to Canada’s economy face an increasingly difficult environment for extraction. Indigenous peoples across the country will see their traditional ways of life further disrupted by climate change. The increasingly evident impacts of climate change on day-to-day life will see voters demand greater action from government. Significant investment in green initiatives, clean energy and climate resiliency initiatives will boost green industries.

A qualitative assessment of the impact of smart homes and environmentally beneficial technologies on the UK 2050 net-zero carbon emission target

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ghasson Shabha ◽  
Francesca Barber ◽  
Paul Laycock
Keyword(s):  
Climate Change ◽  
Carbon Emissions ◽  
Smart Home ◽  
Smart Homes ◽  
Content Type ◽  
Net Zero ◽  
Zero Carbon ◽  
The Uk ◽  
Home Technology ◽  
Smart Home Technology

PurposeThere are 29 million homes in the UK, accounting for 14% of the UK's energy consumption. This is given that UK has one of the highest water and energy demands in Europe which needs to be addressed according to the Committee on Climate Change (CCC). Smart homes technology holds a current perception that it is principally used by “tech-savvy” users with larger budgets. However, smart home technology can be used to control water, heat and energy in the entire house. This paper investigates how smart home technology could be effectively utilised to aid the UK government in meeting climate change targets and to mitigate the environmental impact of a home in use towards reducing carbon emissions.Design/methodology/approachBoth primary and secondary data were sought to gain insight into the research problem. An epistemological approach to this research is to use interpretivism to analyse data gathered via a semi-structured survey. Two groups of participants were approached: (1) professionals who are deemed knowledgeable about smart home development and implementation and (2) users of smart home technology. A variety of open-ended questions were formulated, allowing participants to elaborate by exploring issues and providing detailed qualitative responses based on their experience in this area which were interpreted quantitatively for clearer analysis.FindingsWith fossil fuel reserves depleting, there is an urgency for renewable, low carbon energy sources to reduce the 5 tonnes annual carbon emissions from a UK household. This requires a multi-faceted and a multimethod approach, relying on the involvement of both the general public and the government in order to be effective. By advancing energy grids to make them more efficient and reliable, concomitant necessitates a drastic change in the way of life and philosophy of homeowners when contemplating a reduction of carbon emissions. If both parties are able to do so, the UK is more likely to reach its 2050 net-zero carbon goal. The presence of a smart meter within the household is equally pivotal. It has a positive effect of reducing the amount of carbon emissions and hence more need to be installed.Research limitations/implicationsFurther research is needed using a larger study sample to achieve more accurate and acceptable generalisations about any future course of action. Further investigation on the specifics of smart technology within the UK household is also needed to reduce the energy consumption in order to meet net-zero carbon 2050 targets due to failures of legislation.Practical implicationsFor smart homes manufacturers and suppliers, more emphasis should be placed to enhance compatibility and interoperability of appliances and devices using different platform and creating more user's friendly manuals supported by step-by-step visual to support homeowners in the light of the wealth of knowledge base generated over the past few years. For homeowners, more emphasis should be placed on creating online knowledge management platform easily accessible which provide virtual support and technical advice to home owners to deal with any operational and technical issues or IT glitches. Developing technical design online platform for built environment professionals on incorporating smart sensors and environmentally beneficial technology during early design and construction stages towards achieving low to zero carbon homes.Originality/valueThis paper bridges a significant gap in the body of knowledge in term of its scope, theoretical validity and practical applicability, highlighting the impact of using smart home technology on the environment. It provides an insight into how the UK government could utilise smart home technology in order to reduce its carbon emission by identifying the potential link between using smart home technology and environmental sustainability in tackling and mitigating climate change. The findings can be applied to other building types and has the potential to employ aspects of smart home technology in order to manage energy and water usage including but not limited to healthcare, commercial and industrial buildings.

Balancing the competing needs of climate change, biodiversity and rural communities

2009 ◽  
Vol 2009 ◽  
pp. 249-249
Author(s):  
H Prosser
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Land Use ◽  
Nitrous Oxide ◽  
Anaerobic Digestion ◽  
Rural Communities ◽  
Carbon Dioxide Emissions ◽  
Energy Use ◽  
New Technology ◽  
The Uk

The work of the UK Climate Change Commission (UKCCC) in recommending targets and options for reducing emissions of greenhouse gases is focusing attention on what agriculture and land use can contribute to deliver these targets. Although overall the major issue is the reduction of carbon dioxide emissions from energy use, agriculture and land use are significant emitters of methane and nitrous oxide. UKCCC has identified three main routes by which emissions can be reduced• Lifestyle change with less reliance on carbon intensive produce -eg switching from sheep, and beef to pig, poultry and vegetables.• Changing farm practices – eg to improve use of fertilisers and manures• Using new technology on farms – eg modifying rumen processes, anaerobic digestion.

Emerging climate changes and the risks to the operation of building assets in the UK

2016 ◽  
Vol 14 (1) ◽  
pp. 21-35 ◽  
Author(s):  
Abdullah Alzahrani ◽  
Halim Boussabaine ◽  
Ali Nasser Alzaed
Keyword(s):  
Climate Change ◽  
Climate Changes ◽  
Mitigation Strategies ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Content Type ◽  
Starting Point ◽  
Climate Change Risks ◽  
The Uk ◽  
The Impact

Purpose – The purpose of this paper is to report results from a survey on emerging climate changes and the risks to the operation of building assets in the UK. The property sector is facing major challenges as a result of projected climate change scenarios. Predictions concerning future climate change and the subsequent impact on building operations are still subject to a high degree of uncertainty. However, it is important that building stockholders consider a range of possible future risks that may influence the operation of their assets. Design/methodology/approach – The literature review and questionnaire are used to elicit and assess the likelihood of occurrence of climate change risks impacting building operations. The survey was carried out among building stockowners and professionals in the UK. Statistical methods were used to rank and compare the findings. Findings – The majority of the respondents strongly agreed that the list of risks that were elicited from the literature will have an impact on their building assets within a 0-5 years’ time horizon. It was found that the professionals were most concerned about higher energy prices and an increase in operation costs in general; they were least concerned about an electricity blackout. Research limitations/implications – This paper is limited to the UK, and regional variations are not explored. Nevertheless, the buildings’ operation risk study provides a starting point for further investigations into the emerging risks from climate change, and their impact on the operation of building stock. Future work could investigate direct mapping between climate risks and the financial value of properties. Originality/value – Findings of this paper can help professionals and building stockowners improve their understanding of climate change risks and the impact on their assets. This paper could also help these individuals to formulate appropriate adaptation and mitigation strategies.

The Gulf will lag on climate action, despite exposure

2020 ◽  
Keyword(s):  
Climate Change ◽  
Clean Energy ◽  
Content Type ◽  
High Profile ◽  
Oil Revenue ◽  
Climate Action ◽  
Gulf States ◽  
Summer Temperatures ◽  
Tackle Climate Change ◽  
Combat Climate Change

Significance On the same day, opening speakers in a high-profile forum in Abu Dhabi highlighted the emirate’s commitment to renewable energy. Despite the rhetoric and their own vulnerability, however, the Gulf Cooperation Council (GCC) countries are lagging behind global efforts to tackle climate change and remain heavily dependent on oil revenue. Impacts Forecast rises in summer temperatures will deter foreign investment and expatriate workers in future. A collapse in oil prices would cut the funding available to develop clean energy. Failure to stem wasteful hydrocarbons energy consumption will make it harder for renewables to compete. Gulf states’ populations will be largely disengaged from global efforts to combat climate change.

International carbon transition debates to intensify

2019 ◽  
Keyword(s):  
Climate Change ◽  
Carbon Emissions ◽  
Coal Production ◽  
International Labour Organisation ◽  
Content Type ◽  
Carbon Neutrality ◽  
Developed Economies ◽  
The Uk ◽  
The Eu

Subject Carbon transitions. Significance The EU in May failed to reach an agreement on how to achieve a long-term strategy on reducing carbon emissions. One of the issues underlying the persistent differences among member states was the question of how to achieve a ‘just transition’. This is becoming an increasingly significant element of national and international debates on tackling climate change. Impacts The International Labour Organisation believes a transition limiting heat rises to 2 degrees by 2030 would create 24 million jobs globally. Global coal production may stabilise as reductions in developed economies are offset by increases in Asia. The UK Treasury estimates that achieving carbon neutrality by 2050 will cost 1 trillion pounds (1.26 trillion dollars).

Future of climate change will depend on China

2019 ◽  
Keyword(s):  
Climate Change ◽  
United Kingdom ◽  
Climate Change Policy ◽  
Green Economy ◽  
Content Type ◽  
The United Kingdom ◽  
Change Policy ◽  
Slow Progress ◽  
The Uk ◽  
The Eu

Subject China's climate change policy. Significance The Trump administration’s planned withdrawal from the Paris Agreement and the UK government’s preoccupation with Brexit have allowed China to present itself as a global leader on climate change. Ahead of the COP26 summit in the United Kingdom next November, countries and negotiating blocs such as the EU will focus on China as a major emitter that needs to increase its pledges to avoid a business-as-usual trajectory. Impacts Germany, holding the EU presidency for July-December 2020, will be key to new China-EU diplomatic arrangements on climate change. An EU-China summit in Leipzig during the German presidency will put climate change high on the agenda. At COP26, the United Kingdom is likely to emphasise finance, nature-based solutions, adaptation and resilience, and the Green economy. The UK government may also emphasise long-term ‘net zero’ commitments, as it has made to 2050. Inadequate national targets and slow progress in UN talks will fuel grassroots activism and calls for radical approaches.

Transition to circular economy in Brazil

2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Michel Xocaira Paes ◽  
Gerson Araujo de Medeiros ◽  
Sandro Donnini Mancini ◽  
Flávio de Miranda Ribeiro ◽  
Jose A. Puppim de Oliveira
Keyword(s):  
Developing Countries ◽  
Circular Economy ◽  
Urban Areas ◽  
Service Sector ◽  
Management Practices ◽  
Public Policies ◽  
Local Economy ◽  
Environmental Benefits ◽  
Municipal Solid Waste Management ◽  
Content Type

Purpose The purpose of this paper is to evaluate how improvements in municipal solid waste management systems (MSWMS) can contribute to a transition toward circular economy (CE) in urban areas, outlining actions and guidelines for public policies. Design/methodology/approach The research was carried out in three municipalities located in the state of São Paulo in terms of: diagnosis; elaboration of more positive scenarios in terms of CE and scaling of economic and environmental benefits; and outline actions and guidelines for public policies of MSWMS. Findings In developing countries like Brazil, MSWMS can contribute to a transition toward a CE through new public policies and management practices, or even through the improvement of those that already exist. Examples of this are the integration of the informal sector of the recycling chain and service sector related to repairs of clothing, shoes, furniture and electronics as well as composting at the food production site. This could be strengthened by legal and financial mechanisms, training and carbon credit projects. Moreover, there is a need for integration of public policies between different levels of governments and sectoral policies. Originality/value This paper developed a methodology to examine the potential for a transition toward a CE through the MSWMS in different scenarios and cities. This methodology allows to advance the implementation of the concept of CE in urban areas of developing countries and generating co-benefits to the local economy and the global environment.

Land and clean energy trade-off: estimating India’s future land requirement to fulfil INDC commitment

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Soumen Rej ◽  
Barnali Nag
Keyword(s):  
Energy Source ◽  
Energy Requirement ◽  
Clean Energy ◽  
Waste To Energy ◽  
Energy Sources ◽  
Land Occupation ◽  
Land Transformation ◽  
Trade Off ◽  
Content Type ◽  
Energy Trade

Purpose For India, with its low agricultural productivity and huge population, land acquisition has always been a serious policy challenge in the installation of land-intensive power projects. India has experienced a large number of projects getting stalled because of land conflict. Yet, there is a paucity of literature pertinent to India that tries to estimate future land requirements taking into consideration of land occupation metric. Design/methodology/approach In the present study, the dynamic land transformation and land occupation metrics of nine energy sources, both conventional and renewable, are estimated to further determine the magnitude of land requirement that India needs to prepare itself to fulfil its Intended Nationally Determined Contribution (INDC) commitments. This is illustrated through two different scenarios of energy requirement growth rates, namely, conservative and advanced. Findings This analysis suggests that, while nuclear energy entails the lowest dynamic land transformation when land occupation metric is taken into account, waste to energy source possesses least land requirement, followed by coal-fired source. Hydro energy source has highest requirement both in terms of dynamic land transformation and land occupation. It is also seen that land requirement will be 96% and 120% more in INDC scenario than business as usual (i.e. if India continues with its current share of renewables in its energy portfolio in 2030) considering a conservative and an advanced growth rate, respectively. Research limitations/implications Some policy recommendations are provided that may aid policymakers to better address the trade-off between clean energy and land and incorporate it into policy planning. This study has not been able to consider future technical efficiency improvement possibilities for all energy sources, which can be incorporated in the proposed framework for further insight. Originality/value This paper provides a framework for estimation of future land requirement to fulfil India’s INDC energy plans which is not available in existing literature. The authors confirm that this manuscript is an original work.

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