Waste generation has increased in many sectors given the demand and population growth. Reverse logistics comes to contribute to the return of these wastes to the production chain. In this context, frying oil is one of the most processed waste and transformed into new products, such as: biofuel, boiler fuel, soap manufacturing, concrete formwork release agent etc. Oil is one of the wastes whose recycling only happens by law, because it has low added value, unlike plastic, aluminum and copper, whose values are higher. The average oil consumption in Brazil reaches 3 billion liters per year, but only 2.5% of this total is recycled, the others are discarded in the wild. The aim of this study is to analyze Reverse Logistics at different points, seeking to describe the chain steps, from the final consumer, through the PEV and ending in the companies that will reuse the frying oil already treated. In Manaus, the logistics of frying oil is done by cooperatives and private companies, being MASSEG, the largest company in the segment. This research has an explanatory character, approaching a case study, which made it possible to observe the financial and environmental feasibility of reverse logistics for the collection of frying oil, carried out at Condomínio Shopping Manauara Center, in the city of Manaus, AM. To reverse this scenario, many companies are investing in the reverse logistics process. Procedures such as leaving drums empty so that they are filled with waste oil, separation of solid waste and water from oil, are already part of the routine of tenants that also contribute to non contamination of water bodies. The collection, transportation, filtering, decantation and commercialization of the product already treated, for fuel purposes, is performed by the company itself. Finally, the company uses part of the treated oil to manufacture biodiesel, applied to the consumption of its own fleet, with no commercialization of the generated biodiesel. Thus there is a reduction in the use and costs with usual fuels (fossils), seeking to add the culture of sustainability.
Macuco bean (Pachyrhizus spp.) Is an atypical horticulture that has toxicity in its seeds and has potential for disease control, but its effect on soil stability is unknown? Among the bioindicators to evaluate soil quality is the analysis of fauna diversity, considered to be the most sensitive for presenting rapid response to changes. Therefore, the objective of this study was to determine the effect that macuco bean extracts and Cabrio® Top fungicide have on the soil mesofauna, with a completely randomized block design with three treatments and six replications. The treatments were: bean extract (1: 1000), a solution of Cabrio® Top (1: 250) and the water control. Pipes 100 mm in diameter were inserted into the soil 10 cm deep, one pipe being the experimental unit. For the extraction of mesofauna the Berlese-Tullgren method was used. After eight days in the extractor the samples with the mesofauna were removed for proper counting on the stereoscope. Moisture, group richness and abundance of individuals were evaluated. The results showed that soil moisture favored the richness of the edaphic mesofauna. Extract and Cabrio® Top compared to water increased the richness of faunal groups, but water presented higher abundance of specimens. However, all evaluated variables did not show significant variability between treatments. Therefore, Macuco bean extract and Cabrio® Top maintained soil quality without imbalancing the edaphic mesofauna.
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In a highly competitive global scenario, companies are looking for ways to optimize their processes, reducing costs and improving the quality of their products. In this context, several tools were developed to improve the companies' inventory management, one of them being the ABC Curve as a method to hierarchize the inventory according to the intrinsic value of each material, allowing the analysis of how the supply should work. from each supplier. The present work aims to perform the application of the ABC curve method in the zagaia restaurant, located in the city of Manaus / AM that will allow the stock hierarchy and will be through the classification of the raw material according to its annual demand and its Unit price. As a premise, a bibliographic research on content planning and inventory management was adopted, as well as an on-site study to catalog the items and check with the restaurant management, their values, their quantities and how the chain works. of supplies. The results presented confirm that Class A items need greater attention due to their high value, while Class C items do not impact financially as much, but need attention to be properly allocated within inventory as they represent the largest volume.
The industrial scenario demonstrates a production dispute not only with other companies competing in the market, but competition within the organization in order to demonstrate excellence in the production process. Establishing a correct manufacturing goal will aid in production planning, determine concise objectives with actual plant capability, and ensure that outliers are identified in advance for the correct solution and application of efforts to improve the process. These steps will ensure the correct evaluation of the plant before other business units, as well as stipulation measures that are adopted so as not to impair the real perception of the process and to consider the indicators without any margins of disagreement. The production to be studied comes from the work of packaging plastic components performed by a machine divided into two stages of operation, first manual and manufactured and then automated packaging. The production data is improved by shifts of eight hours through those used and subsequently entered into the company's database. In these, statistical tools will be used, helping to better compose the data, where a qualified sample is sought for the study, which through the OEE -Overall Equipment Effectiveness indicator provided in this set, will measure the efficiency through the indices of availability, quality and productivity and whether the disposition of values and their representativeness within what has been established is practicable. The grouping of generated data demonstrates a condition expected by the production team, but that only through numerical results can be explained, a target based on the nominal capacity of the machine does not represent the current state of the process and becomes infeasible to achieve the normal conditions of production. Consider a value below what was previously stipulated, non-demonstration to be an erroneous strategy because of the history of the demonstration process and also because the calculations demonstrated are in accordance with the reality and production volumes achieved. Understanding a real productive capacity and working on concise numbers will allow accurate decision making. I. INTRODUCTIONProduction targets established by companies do not represent the actual production capacity of machines. The determined values are based on the machine's nominal value, the design capacity. As explained by , design capacity does not take into account losses during the process. Also, according to the authors, production capacity is the maximum amount of output of a good or service in a given period of time.
The machine control has always been a task, carried out exclusively by people who do not work directly on the production lines, so people directly involved in production do not need to worry about the materials needed for their work, and with this model there was difficulty when product supply. Therefore, the objective of this research was to identify benefits and results in the application of the Kanban system in a marine engine maintenance company, in the warehouse sector, added to the selection of literature that conceptualized the mechanism of the system; the identification of the process, from the organization of maintenance parts, as a way to facilitate the maintenance of marine engines. The company studied, founded in 2014, headquartered in the city of Manaus/AM, specializes in marine engine maintenance, with machinery as its main sector. The company has vacancies ranging from 11 to 50 employees annually, according to demands and times of the year. The methodology addressed is of a mixed nature, being part bibliographical in order to select works for the basis and better understanding of the subject, and part case study, since the maritime maintenance company will be the focus of this article. The kanban system determines the quantity of supply so that bottlenecks do not occur with regard to the company's production. Regarding the updating of the table, every day you should check which are the stocks with the highest degree of demand, indicated by the color red, being possible and necessary to pass on to the replacement sector, the missing products. the control system was installed by means of plates that indicated the quantity of parts they had and with that, it could be predicted which parts were priorities in reallocation in the stock, replacing mainly products and fundamental parts for the continuity of the maintenance. After applying this process, it was possible to easily identify the needs and speed up the notes of the company's technical staff with the supply sector (purchases), as well as to avoid the constant lack of “priority” parts in the maintenance process. The performance of the kanban production system applied to the marine engine company was concluded, since the nameplates of the missing parts became much more visible, optimizing the replacement process of pending parts. This production technique presented in the study is of great importance in today's world, as it focuses on the quality of the production process and the quality of finished products offered to the market, making the company that has this system solidify and can remain competitive.
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