Solid Waste Impact and Their Management on Metal Manufacturing Industry for Industrial Sustainable Development: A Case Study of Akaki Basic Metals Industry,
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Date
2023-10
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Addis Ababa University
Abstract
Industrial solid waste and defective products are the leading and biggest problem for various industries and factories, affecting company productivity, efficiency, environmental pollution, competency, and loss of income. There are many causes of the impact of solid waste or defective products, so to minimize the waste, any countermeasure should be taken. The main objective of the study is to investigate the current state of solid waste and reject impact at Akaki Basic Metals Industry and to propose a model that leans towards zero waste management integration to reduce the level of waste and defective products in the company. Applying the primary and secondary data sources and collecting the primary data through questionnaires, observations, process flow, and cause of defect or waste products. And secondary data were collected from company records, internet sources, books, articles, etc., also applying both qualitative and quantitative methods to examine the data by using zero waste management and lean tools. According to the survey data on waste/reject rate, the three-year reports from 2012–2014 E.C. indicate that above 59.8 tons of metal waste, there are many causes related to machine, method, process, human, raw material, and laboratory factors for the waste or defective products. To resolve the problems associated with the above causes, we propose a model consisting of zero waste and lean management based on the results of the case study and create awareness of waste management for the metal manufacturing industry in the case of Akaki Basic Metals Industries.
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lean and zero waste management, defective products, and solid waste.