Journal Of Engineering Sciences (Improsci)
Vol 3 No 6 (2026): Vol 3 No 6 June 2026

Analysis Of Occupational Safety Risks in IPAL Units Using the HIRARC Method

Muhammad Iqbal Widagdo (University of Muhammadiyah Cirebon, West Java)
Muhammad Nana Trisolvena (University of Muhammadiyah Cirebon, West Java)



Article Info

Publish Date
04 Aug 2026

Abstract

Aims. This study analyzes occupational hazards and safety risks in the Wastewater Treatment Plant (WWTP) unit of a major food company in West Java (name and details anonymized for confidentiality). Methods. The Hazard Identification, Risk Assessment, and Risk Control (HIRARC) method and the fishbone diagram (Ishikawa) were applied. Result. The results indicate that activities in the WWTP unit present varying levels of risk, with dominant hazards including chemical exposure, slippery work environments, and poorly maintained machinery. The fishbone diagram reveals that workplace accidents are multifactorial, involving human, machine, method, and environmental aspects, while also highlighting the importance of chemical storage control, which, although less frequent, poses significant impacts on worker safety and operational continuity. Conclusion. These findings align with international standards such as ISO 45001:2018, the ILO Occupational Safety and Health Convention No. 155, and national regulations PP No. 50 of 2012 on Occupational Safety and Health Management Systems (SMK3), emphasizing that hazard identification, risk assessment, and continuous control must be implemented comprehensively to reduce workplace accidents and ensure industrial sustainability.

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Journal Info

Abbrev

improsci

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

Description

Journal Of Engineering Sciences (Improsci) merupakan peer-reviewed jurnal yang mempublikasikan artikel-artikel ilmiah dalam bidang industri. Artikel-artikel yang dipublikasikan di Jurnal Improsci meliputi hasil penelitian ilmiah asli (prioritas utama), artikel ulasan ilmiah yang bersifat baru (tidak ...