Analysis of the contribution of waste sorting plants to the reverse processes of supply chains

2018 ◽  
Vol 37 (2) ◽  
pp. 127-134 ◽  
Author(s):  
Miguel A Sellitto ◽  
Francieli A de Almeida

The purpose of this article is to analyse the contribution of waste sorting plants to the reverse processes of supply chains. The research method is the double case study of two Brazilian waste sorting plants. The research techniques were the analysis of reports, interviews, participant observation, and statistical analysis of historical series of production. The qualitative part of the study concluded that the main roles of waste sorting plants are the supply of local industry with recycled low-cost raw material or to recover energy as fuel, environment development by reducing the use of controlled landfills, and social support to the municipality by reducing public health liabilities and generating jobs and income for vulnerable communities. The quantitative part of the study observed two systemic behaviours. In the first sorting plant, external elements reacted to an expressive increase of the production and limit the current outcome. The second sorting plant is a bottleneck. Despite the availability of waste and demand for recycled material, the sorting plant does not achieve increased production. Owing to the economic, environmental, and social importance of sorting plants to the region, further research should focus on these two systemic behaviours. The main contribution of the study is the integration of elements observed in supply chains and in waste management studies to form a plausible basis of hypotheses for a further survey. Another contribution is to offer information to practitioners on the importance of recycling in the reverse process of the supply chains.

2020 ◽  
Vol 12 (5) ◽  
pp. 1814 ◽  
Author(s):  
Iain J. Fraser ◽  
Martin Müller ◽  
Julia Schwarzkopf

Sustainability in supply chain management (SSCM) has become established in both academia and increasingly in practice. As stakeholders continue to require focal companies (FCs) to take more responsibility for their entire supply chains (SCs), this has led to the development of multi-tier SSCM (MT-SSCM). Much extant research has focused on simple supply chains from certain industries. Recently, a comprehensive traceability for sustainability (TfS) framework has been proposed, which outlines how companies could achieve MT-SSCM through traceability. Our research builds on this and responds to calls for cases from the automotive industry by abductively analysing a multi-tier supply chain (MT-SC) transparency case study. This research analyses a raw material SC that is particularly renowned for sustainability problems—the cobalt supply chain for electric vehicles—and finds that the extant literature has oversimplified the operationalisation of transparency in MT-SSCM. We compare the supply chain maps of the MT-SC before and after an auditing and mapping project to demonstrate the transparency achieved. Our findings identify challenges to the operationalisation of SC transparency and we outline how FCs might set to increase MT-SC transparency for sustainability.


2015 ◽  
Vol 754-755 ◽  
pp. 960-963
Author(s):  
Norliza Abd Rahman ◽  
Muhammad Atif Azhari Mohd Azmi ◽  
Mohd Izzuddin Ahmad Zainuri ◽  
Stephina Lupang Laing ◽  
Norasila Kasim ◽  
...  

This paper describes a design of industrial modelling process of bacterial cellulose production. The main factors for the economic unfeasibility of this production are raw material price, plant capacity and capital cost. The purpose of this modelling is developing, studying, and evaluating process control technology in order to achieve low-cost preparation and high biocellulose (BC) production in industrial scale. In this model, glucose, a simple carbohydrate has been chosen as the carbon source. The aerobic fermentation ofAcetobacterxylinumis regulated at particular temperature and pH to ensure maximum yield production. This fermentation process involves six stages that are sterilization, inoculation, fermentation, treatment, waste removal and drying/freezing. Nineteen streams will control and monitor the whole processes. The waste will undergo treatment in NaOH tank followed by sedimentation tank and filtration process for removal. Meanwhile, the BC is purified through drying and freezing process to preserve the product from contamination. This design shows that modelling is a powerful methodology for predicting and prioritizing methods of re‐engineering an industrial process in order to achieve greater performance.


2020 ◽  
Vol 65 (2) ◽  
pp. 1-11
Author(s):  
Beáta Sz.G. Pató ◽  
Márk Herczeg

AbstractSecuring the high level of performance of the supply chains is a difficult task. The harmonization of different interests, the coordination of the raw material supply and information flow, the cooperation of the partners, forging and maintaining a relationship of trust are challenging even in an ideal world in order to meet the customer demands. The recent outbreak of the COVID-19 presents the members of the supply chains with extreme challenges. Because of the epidemic, the value added activities of the supply chains are getting even more importance. It became clear that the different supply chains connect the whole economy in a global and local scale as well. The choice of the inventory and organizational strategy is a key aspect in a crisis like this. The aim of this study is to present the current challenges and their viable solutions in order to check the possibilities to maintain the operation of the supply chains even in this difficult economic and social period using an automotive case study as an example.


Author(s):  
Geovani da Silva Monteiro ◽  
Luiz André Martins Pereira ◽  
David Barbosa de Alencar ◽  
Antônio Estanislau Sanches ◽  
Carlos Eduardo de Oliveira ◽  
...  

Logistics are of great importance in a globalized market. Supply chains are always in global competition, involving multiple countries and multiple companies. Direct Logistics is the process by which the products pass from the place of origin of the raw material to the final consumer. Aftermarket Reverse Logistics is required to resolve issues after products reach their final destination, and before consumption, but can also occur before, as is the case with e-commerce, due to problems in receiving ordering, packaging and shipping. Companies must always be prepared to respond quickly to this demand. Strict control of the entire process from order receipt to delivery to the consumer is required and this process needs to be integrated in real time. In the case study, of the orders sent, only about 3% present some problem, all of which are solved quickly. This result is the way the company handles each order, in constant communication with the customer, clarifying doubts and solving problems quickly. The result is the low return rate compared to other e-commerce companies, and the 100% resolution of cases, always valuing the satisfaction of their customers.


2019 ◽  
Vol 12 (42) ◽  
pp. 131-136
Author(s):  
Abeer Naesa ◽  
Reabal Mona ◽  
Ahmad Ibrahim Kara-Ali ◽  
Hussam Eddin Laika

Abstract Disposal of plastic waste is a serious problem, because plastics accumulate in the environment and cause significant pollution due to their degradability. Therefore, the main objective of this research was to reach the biodegradable plastics industry as alternatives to non-biodegradable plastics. And the existence of such biodegradable plastic must contribute in reducing the emission of harmful greenhouse gases and keeps the environment clean, and reduces the cost for pollution from the accumulation of plastic waste. Algae was used as a raw material for the production of bio-plastics because of its unique properties such as it grows rapidly and in large quantities at a low cost and grows in a variety of water environments throughout the year, which means that there is no risk in the difficulty of securing the raw materials needed for the production of bio-plastics The study concluded that the tested samples partially decomposed in fresh and alkaline water during a period of 26 days, which means a high dependence on algae to the production of bio plastics as an environmentally friendly industry.


2020 ◽  
Vol 4 (2) ◽  
pp. 75-94
Author(s):  
Marcin Ptasznik

Approaches to marketing actions in culture are exhibiting rising significance in the modern dynamically changing environment. This paper is focused on the identification of possible applications of marketing in the sphere of culture, with particular reference to the film industry, field of operations of the New Horizons Association. The author’s research was based on a literature study, participant observation, and an online questionnaire, enabling creation of a case study on the New Horizons Association. Empiri-cal research allowed for exploration of the perception of marketing actions of this organization, as well as identifying possible directions for its development. Changes in the needs of modern consumers are related to ongoing virtualization and globalization of culture, and allow for academic discussion about the future of innovative cultural institutions and audio-visual ventures, including within the context of the current global coronavirus/COVID-19 pandemic.


Author(s):  
Kristopher D. Staller

Abstract Cold temperature failures are often difficult to resolve, especially those at extreme low levels (< -40°C). Momentary application of chill spray can confirm the failure mode, but is impractical during photoemission microscopy (PEM), laser scanning microscopy (LSM), and multiple point microprobing. This paper will examine relatively low-cost cold temperature systems that can hold samples at steady state extreme low temperatures and describe a case study where a cold temperature stage was combined with LSM soft defect localization (SDL) to rapidly identify the cause of a complex cold temperature failure mechanism.


2021 ◽  
pp. 204275302098892
Author(s):  
Liudmila Shafirova ◽  
Kristiina Kumpulainen

Online collaboration has become a regular practice for many Internet users, reflecting the emergence of new participatory cultures in the virtual world. However, little is yet known about the processes and conditions for online collaboration in informally formed writing spaces and how these create opportunities for participants’ identity work. This ethnographic case study explores how four young adults, fans of the show My Little Pony: Friendship is Magic (bronies), negotiated a dialogic space for their online collaboration on a fan translation project and how this created opportunities for their identity work. After a year of participant observation, we collected interviews, ethnographic diaries and participants’ chats, which were analysed with qualitative content and discourse analysis methods. The findings showed how the Etherpad online writing platform used by the participants facilitated the construction of dialogic space through the visualization of a shared artefact and adjustable features. It was in this dialogic space where the participants negotiated their expert identities which furthered their discussions about writing, translating and technological innovations. The study advances present-day knowledge about online collaboration in affinity groups, engendering the construction of a dialogic space for collaborative writing and participants’ identity work.


2021 ◽  
Vol 13 (7) ◽  
pp. 4061
Author(s):  
David Gallar-Hernández

Bolstering the political formation of agrarian organizations has become a priority for La Vía Campesina and the Food Sovereignty Movement. This paper addresses the Spanish case study of the Escuela de Acción Campesina (EAC)—(Peasant Action School), which is a tool for political formation in the Global North in which the philosophical and pedagogical principles of the “peasant pedagogies” of the Training Schools proposed by La Vía Campesina are put into practice within an agrarian organization in Spain and in alliance with the rest of the Spanish Food Sovereignty Movement. The study was carried out over the course of the 10 years of activist research, spanning the entire process for the construction and development of the EAC. Employing an ethnographic methodology, information was collected through participant observation, ethnographic interviews, a participatory workshop, and reviews of internal documents. The paper presents the context in which the EAC arose, its pedagogical dynamics, the structure and the ideological contents implemented for the training of new cadres, and how there are three key areas in the training process: (1) the strengthening of collective union and peasant identity, (2) training in the “peasant” ideological proposal, and (3) the integration of students as new cadres into the organizations’ structures. It is concluded that the EAC is a useful tool in the ideological re-peasantization process of these organizations.


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