scholarly journals Environmental sustainability of bioethanol production from wheat straw in the UK

2013 ◽  
Vol 28 ◽  
pp. 715-725 ◽  
Author(s):  
Lei Wang ◽  
Jade Littlewood ◽  
Richard J. Murphy
2018 ◽  
Vol 18 (1) ◽  
pp. 20-42 ◽  
Author(s):  
Amal Abuzeinab ◽  
Mohammed Arif ◽  
Mohd. Asim Qadri ◽  
Dennis Kulonda

Purpose Green business models (GBMs) in the construction sector represent the logic of green value creation and capture. Hence, the call to examine GBMs is growing ever louder. The aim of this paper is to identify benefits of GBMs by adopting five essential elements of the GBM from the literature: green value proposition; target group; key activities; key resources (KR); and financial logic. Design/methodology/approach In all, 19 semi-structured interviews are conducted with construction sector practitioners and academics in the UK. Thematic analysis is used to obtain benefits of GBMs. Further, the interpretive ranking process (IRP) is used to examine which elements of the GBM have a dominant role in providing benefits to construction businesses. Findings The benefits are grouped into three themes: credibility/reputation benefits; financial benefits; and long-term viability benefits. The IRP model shows that the element of KR is the most important when evaluated against these three benefit themes. Practical implications Linking GBM elements and benefits will help companies in the construction sector to analyse the business case of embracing environmental sustainability. Originality/value This research is one of the few empirical academic works investigating the benefits of GBMs in the construction sector. The IRP method is a novel contribution to GBMs and construction research.


2017 ◽  
Vol 40 (9) ◽  
pp. 1203-1211 ◽  
Author(s):  
Bahiru Tsegaye ◽  
Chandrajit Balomajumder ◽  
Partha Roy

2020 ◽  
pp. 103-110
Author(s):  
Larysa Sablii ◽  
Oleksandr Obodovych ◽  
Vitalii Sydorenko ◽  
Tamila Sheyko

This paper presents the results of studies of isolation lignin and hemicelluloses efficiency during the pre-treatment of wheat straw for hydrolysis in a rotary-pulsation apparatus. The pre-treatment of lignocellulosic raw materials for hydrolysis is a necessary step in the second-generation bioethanol production technology. The lignocellulose complex is destroyed during this process, and this allows hydrolytic enzymes access to the surface of cellulose fibers. The pre-treatment is the most energy-consuming stage in bioethanol production technology, since it usually occurs at high temperature and pressure for a significant time. One of the ways to improve the efficiency of this process is the use of energy-efficient equipment that allows intensifying heat and mass transfer. An example of such equipment is a rotary-pulsation apparatus, which are effective devices in stirring, homogenization, dispersion technologies, etc. The treatment of wheat straw in a rotary-pulsation apparatus was carried out under atmospheric pressure without external heat supply at solid/water ratios of 1:10 and 1:5 in the presence of alkali. It was determined that the treatment of the water dispersion of straw at ratio of 1:10 due to the energy dissipation during 70 minutes leads to the release of 42 % of lignin and 25.76 % of easily hydrolyzed polysaccharides. Changing the solid / water ratio from 1:10 to 1:5 leads to an increase in the yield of lignin and easily hydrolyzed polysaccharides to 58 and 33.38 %, respectively.


2019 ◽  
Vol 7 (4) ◽  
pp. 142-153 ◽  
Author(s):  
Sebastian Prost

This article proposes a localised and differentiated understanding of food democracy, or rather a plurality of localised food democracies. Based on the experiences of developing a local food hub in an area of socio-economic deprivation in the UK using a participatory action research (PAR) approach, it presents local responses to three key challenges derived from the literature. It argues that for civic food networks (CFNs) to contribute to a transition towards a food democracy, they need to address challenges of: 1) balancing ethical aspirations for environmental sustainability, social justice, as well as community and individual health; 2) developing the skills required for participation in CFNs; and 3) achieving wider impact on food system transformation beyond niche solutions. The responses, or tactics, presented in this article include flexible ethical standards responding to community needs, accessible participation focusing on relationships rather than skills, and a focus on local impact while striving to collaborate and network with other organisations. It thus frames food democracy as a plurality of approaches to build and replicate CFNs. The article positions PAR with its democratic and localised approach to address real-world problems as uniquely suited to navigate the challenges of CFNs. It also discusses the role of researchers in initiating, facilitating, and shaping such processes of food system democratisation as engaged actors.


2020 ◽  
Vol 9 (3) ◽  
pp. 241
Author(s):  
Mohammad Sharif Zami

Despite the fact that contemporary earth construction may open up new avenues to cutting down CO2 emissions, a review of literature reveals that there is sparse research to date identifying reasons behind why there may be resistance to earth construction as a sustainable construction material in the United Kingdom. The aim of this paper is to formulate a conceptual framework that facilitates a clearer understanding of factors affecting the acceptance of earth as a sustainable material in the UK. To achieve this aim, this study adopted a research methodological framework comprising of an extensive review of literature, the Delphi technique, and in-depth interviews. The conceptual framework provides insight into factors related to the UK context specifically including a lack of technological innovation, resources, well-established supply chain networks, training facilities in universities and building codes. These issues may be addressed through the promotion of earthen architecture as a method of cutting CO2 emissions and introducing earth construction modules in relevant degree programs. Keywords: conceptual framework, factors, building material, earth, environmental sustainability


2018 ◽  
Vol 10 (12) ◽  
pp. 4693 ◽  
Author(s):  
Andrew Thomas ◽  
Claire Haven-Tang ◽  
Richard Barton ◽  
Rachel Mason-Jones ◽  
Mark Francis ◽  
...  

The UK food industry faces significant challenges to remain sustainable. With major challenges, such as Brexit, on the horizon, companies can no longer rely on a low labour cost workforce to maintain low production costs and achieve economic sustainability. Smart Systems (SS) is being seen as an approach towards achieving significant improvements in both economic and environmental sustainability. However, there is little evidence to indicate whether UK food companies are prepared for the implementation of such systems. The purpose of this research is to explore the applicability of Smart Systems in UK food manufacturing companies, and to identify the key priority areas and improvement levers for the implementation of such systems. A triangulated primary research approach is adopted that includes a questionnaire, follow-up interviews, and visits to 32 food manufacturing companies in the UK. The questionnaire and interviews are guided by a unique measuring instrument that the authors developed that focusses upon SS technologies and systems. This paper makes an original contribution in that it is one of the few academic studies to explore the implementation of SS in the industry, and provides a new perspective on the key drivers and inhibitors of its implementation. The findings suggest that the current turbulence in the industry could be bringing food companies closer to the adoption of such systems; hence, it is a good time to define and develop the optimum SS implementation strategy.


2016 ◽  
Vol 7 (6) ◽  
pp. 1389-1396 ◽  
Author(s):  
Muhammad Irfan ◽  
Umar Asghar ◽  
Muhammad Nadeem ◽  
Rubina Nelofer ◽  
Quratulain Syed ◽  
...  

3 Biotech ◽  
2012 ◽  
Vol 3 (5) ◽  
pp. 365-372 ◽  
Author(s):  
Shilpi Thakur ◽  
Bhuvnesh Shrivastava ◽  
Snehal Ingale ◽  
Ramesh C. Kuhad ◽  
Akshaya Gupte

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