Keberlanjutan pengelolaan limbah bahan berbahaya dan beracun melalui co-processing di industri semen

Abstract

Background: One of environmental problem in industrial activities is hazardous waste management. Co-processing in cement industry is ex-pected to be a solution of hazardous waste management. Methods: The research was conducted at cement factory which has been doing co-processing activities. Findings: Co-processing activities needs to be evaluated regarding the sustainability. To fulfill sustainable co-processing activities, hazardous waste management by cement industry requires analysis of economic benefits, social acceptability, and environmental requirements. Based on the research, it can be concluded that PT. ITP and PT. HI in co-processing activities can be said to meet the rules of sustainability. Conclusion: PT. ITP has conducted hazardous waste management for 41 hazardous waste gen-erators, 22 types of hazardous waste, and 7,861.23 tons of hazardous waste. PT. HI has conducted hazardous waste management for 71 hazardous waste generators, 53 types of hazardous waste, and 59,494.91 tons of hazardous waste. The average efficiency per year obtained from (1) the use of alternative raw materials of 1.5% for PT.ITP and 4.24% for PT. HI (2) alternative fuel usage of 3.41% and for PT.ITP and 8.23% for PT.HI. Hazardous waste management spend less cost if managed through co-processing. For the community, co-processing activities provide jobs opportunity. The stakeholders accept the existence of co-processing activi-ties at the cement plant as a hazardous waste management service with mean score of 76% and has a frequency of 39% for per-ception strongly agreed. Co-processing has fulfilled environmental requirements consisting of compliance with air quality stand-ards, dioxin, furans, suitability of hazardous waste type, and product SNI compliance.