THE INFLUENCE OF WASTES ON OPERATIONAL PERFORMANCE: THE CASE OF WONJI/SHOA SUGAR FACTORY

Abstract

This study investigates the influence of waste on the operational performance of the Wonji/Shoa Sugar Factory, driven by the problem of inadequate waste management which leads to production inefficiencies, increased costs, environmental hazards, and safety risks. A mixed research approach employing descriptive and explanatory research designs was used to explore this issue. The study targeted a population of 2,145 employees, from which a sample size of 338 respondents was determined using Yamane’s formula. Data were collected through questionnaires and structured interviews with managers, and analyzed using SPSS version 24, employing descriptive statistics, correlation, and regression analysis to identify relationships between waste practices and operational outcomes. The findings revealed that poor waste management practices, particularly in reduction, reuse, recycling, collection, and disposal, negatively impact factory productivity, compliance, and efficiency. Regression analysis confirmed statistically significant relationships between waste management dimensions and operational performance indicators. The study concludes that effective waste handling is essential for improving productivity, operational sustainability, and regulatory compliance. It recommends that the factory adopt integrated waste management strategies, enhance employee training, and implement lean manufacturing practices to mitigate waste-related challenges and optimize operational performance