Planning of waste reduction strategies under uncertainty

2000 ◽  
Vol 24 (2-7) ◽  
pp. 1043-1048 ◽  
Author(s):  
Andreas A. Linninger ◽  
Aninda Chakraborty ◽  
Richard D. Colberg
2019 ◽  
Vol 24 ◽  
pp. 472-488
Author(s):  
Martin Michaud ◽  
Eva-Charlotte Forgues ◽  
Vincent Carignan ◽  
Daniel Forgues ◽  
Claudiane Ouellet-Plamondon

Building Information Modelling (BIM) was introduced in the Architecture, Engineering and Construction (AEC) industry as a shared information platform that aims to improve productivity through better collaboration. The assumption is that a virtual integration of information among project stakeholders would reduce the issues around the fragmented nature of the processes that still prevail in the construction field. This paper aims to highlight the sources of waste in the information flows between an architecture firm, a Mechanical, Electrical and Plumbing (MEP) engineering firm, a general contractor (GC) and a MEP subcontractor (SC) in a BIM project – an aspect of waste little covered in the Lean literature. The focus is on the MEP process from early design to the final product. This research contributes to the identification of the main barriers to information flow, including the conflicts and waste sources that emerge from using BIM, as well as to the identification of emerging successes. Moreover, the findings offer practical implications by providing a visual of the patterns emerging from the use of BIM. Finally, by providing potential waste reduction strategies such as Value Stream Mapping (VSM) this work allows construction actors to identify and reduce sources of waste in their processes.


2019 ◽  
Vol 11 (17) ◽  
pp. 4779 ◽  
Author(s):  
Sina Nitzko ◽  
Achim Spiller

The efficient use of natural raw materials is a key element of sustainable development and is also gaining importance in the food sector. Consumers are increasingly realizing that food is too valuable to be used only partially. However, consumer acceptance is an important precondition for establishing efficient food utilization options. A total of 470 German consumers were surveyed through an online-questionnaire where they had to evaluate three options each for the efficient use of plant-based foods as well as animal-based foods with respect to eight different criteria. The results show that the six options differed significantly regarding consumer acceptance. The efficient use of plant-based foods (especially non-standard fruits/vegetables and the “leaf-to-root” principle) was more accepted than the efficient utilization of animal-based foods. Furthermore, it can be seen that options using the by-products in a natural form were considered more acceptable than those which subject the by-products to some form of processing. These results provide an insight into the views of consumers on food waste reduction strategies, which are frequently debated in the sustainability discussion.


Author(s):  
Dave Traeger ◽  
Kirk Dunbar ◽  
Emily Bedwell

The EPA has developed the Waste Reduction Model (WARM) to help solid waste managers estimate greenhouse gas (GHG) emission reductions from several different waste management practices. This model is useful for high level analysis but breaks down when applied to specific local systems. This paper will discuss new work currently being done by HDR to provide more reliable analysis of local conditions. This capability is of growing importance given the emergence of national carbon regulations which will require solid waste managers to develop greenhouse gas reduction strategies for their local systems.


Author(s):  
Sarina Cho ◽  
BCIT School of Health Sciences, Environmental Health ◽  
Helen Heacock

Background: Globally 1.3 billion tonnes of food are wasted every year equating to approximately 750 billion US dollars (1). In Canada it has been estimated that $31 billion of food is wasted annually (2). This amount can easily be used to feed hundreds of thousands of undernourished people across the world. Food wastage can occur at every level of the food supply chain. The purpose of this study was to evaluate the food waste generated by residents of British Columbia, Canada. The study aimed to identify the general knowledge regarding food waste and ugly produce, the attitudes of the public towards food waste, and the general practices of waste disposal. Methods: A self-administered electronic survey created on Survey Monkey Canada was distributed on various social media platforms over a two-week period in January 2020. The survey contained questions that resulted in a score for knowledge of food waste, attitude towards food waste and the waste reduction practices of British Columbian residents. Chi square and correlational analyses were performed using the statistical package NCSS. Results: 96 respondents met the inclusion criteria and completed the survey. Many participants received a medium score for knowledge (N=67) and possessed a positive attitude (N=71) towards food waste. There was an even distribution between good and fair practice level (N=49 and N=46). There was no association between level of food waste knowledge and demographic categories except for age (p=0.025). Younger participants were less knowledgeable. Between practice and demographic variables, no statistically significant associations were found. The results for attitude were determined to be non-statistically significant for age, gender and experience working in the food industry while there was a statistically significant association between attitude and an individual’s education level (p = 0.008). Those with higher levels of education had a more positive attitude. No correlation was determined between knowledge and practice indicating that there is no influence of knowledge on practice and vice versa. The study found that there is a positive correlation (p = 0.0004 and r = 0.3542) between attitude and practice indicating that these two variables influence each other. Conclusion: This study demonstrated that the population in B.C. who responded to the survey has adequate knowledge, a positive attitude and moderate practice behaviours regarding food waste. Younger individuals were less knowledgeable about food waste and the more educated one is, the more positive their attitude towards food is. The study also indicated that positive attitudes translated into better practice. These results are only a starting point in determining the causes for food loss and waste in B.C as it reveals the need for more local initiatives to bring everyone to start adopting food waste reduction strategies.  


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Michelle R. Alcorn ◽  
Daniel Vega ◽  
Ryan Irvin ◽  
Paola Paez

PurposeAs exploratory research, this project aimed to develop and assess the effect of implementing a food waste reduction program at a restaurant on a university campus.Design/methodology/approachData collection consisted of an audit of both pre and postconsumer food waste to determine the effectiveness of various reduction strategies and a survey to assess attitudes of employees toward food waste. As exploratory research, a personalized database was created to track current food waste amounts and reasons for waste in the restaurant operation to determine if the same method could be employed in future research.FindingsOverall, the restaurant in this study implemented various effective food waste reduction practices that were inexpensive and simple, resulting in a weekly average reduction of 14.3 pounds of food waste. The top five food item products wasted by the kitchen were also identified for both pre and postintervention phases as well as the reasons for generating kitchen waste. Furthermore, data reported on postconsumer waste included weight quantities and product types.Originality/valueThe project resulted in evidence that a personalized food tracking system is useful for identifying and quantifying food waste in foodservice operations. Therefore, the research design and data collection methods used in this project can be used in future research on a larger scale.


2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Isadora do Carmo Stangherlin ◽  
Jose Luis Duarte Ribeiro ◽  
Marcia Barcellos

Purpose Food waste has received attention during the last decade, especially due to its environmental and social impacts. An important contributor to food waste is consumers’ low preference for purchase fruits and vegetables with unusual appearance, products with damaged package and products close to the expiration date, technically called suboptimal food products. Researches show that consumers tend to reject these products when buying food, increasing avoidable food waste. However, consumer considerations when deciding to buy or not to buy suboptimal food are still unknown. The purpose of this paper is to use two different approaches to investigate consumers’ perceptions towards suboptimal food and how they impact their acceptance. Design/methodology/approach The first part of the study involved a qualitative analysis of participants’ open-ended responses (282 answers), where participants were asked to write down the impressions they had about three suboptimal food images. The second phase explored consumers acceptance of suboptimal food through a focus group discussion. Findings Results reveal that considerations about suboptimal food are divergent, with some participants rejecting them because they are impelled to search for perfection when buying food products. However, some individuals are disposed to accept suboptimal products, mainly because they have concern with the environment and cook abilities. Originality/value As a whole, this study contributes for food waste reduction strategies and has implications for marketing actions.


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