جستجوی مقالات مرتبط با کلیدواژه « Automotive industry » در نشریات گروه « محیط زیست »

LARG supply chain is a combination of four supply chains: lean, agile, resilient and green. Each type of supply chain has its own requirements that may conflict with other supply chain requirements. The study seeks to identify the types of risks facing the LARG supply chain.

The present study has a positive nature in terms of philosophical foundations due to the use of quantitative methods. From the orientation point of view, the research has an applied approach and its methodology is multiple. The statistical population of the study is the experts of the supply chain of the automotive industry who are selected using a judgmental method for sampling. In this study, two methods of fuzzy Delphi and best-worst were used to analyze the data.

Initially, 41 risks were identified through literature and interviews with experts. In the following, these 41 risks are presented in the form of 13 main risks. Each of these risks is related to a specific supply chain. These risks were then screened by fuzzy Delphi and 25 risks were excluded. The remaining risks were prioritized using the BWM. The results showed that the risks of financing problems, production planning, changing customer demands and weakness of processes and recycling technology have the highest priority in each component of the LARG supply chain.

Diversifying financing tools, using new marketing methods and having a team approach in product development, paying attention to trends affecting future consumer behavior and examining changes in customers' buying behavior are the most important suggestions.

In recent decades, with the rapid growth of urbanization and population growth in cities, the use of public transport and personal vehicles has been on the rise, which has many consequences such as greater dependence on the car, long travels, increased transportation costs and most importantly, environmental hazards and air pollution. The Irregular use of cars leads to the loss of irreversible energy, the effects of greenhouse gas, and the dissatisfaction of townspeople of the high levels of noise and air pollution, resulting in a reduction in economic efficiency. In this regard, governments have set various rules and standards for reducing car pollution and the car makers are required to comply with them. These requirements have prompted carmakers to find ways to reduce the environmental pollution of their products and to create new technologies in this industry. Therefore, attention to environmental studies in the automotive industry is one of the most important factors. In this research, we investigate the types of pollution caused by automobile industry and practical ways to reduce these contaminations.

Paint sludge of automotive industries, due to having heavy metals, unbaked polymers, organic and inorganic pollutants, has been classified as a hazardous waste. For this reason, its proper disposal is faced with many problems. Various methods yet have been developed by the great automobile companies of the world to reduce the environmental impacts of paint sludge. One of the effective an economical methods for reduction of pollution is separation of heavy metals from paint sludge. The present study was carried out to investigate the pollution of paint sludge from automotive industry, to reduce its pollution to environmental standard levels, and to recover alumina from the paint sludge through leaching method. After XRD and XRF tests on paint sludge, it was found that the amount of alumina is relatively high. Separation of alumina was considered because of its economic value and various applications in different industries. After utilizing the common separation methods, it was revealed that by optimizing the parameters such as temperature, sludge particle size, and sulfuric acid concentration through the leaching method, about 70% of alumina can be recovered.