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All Journal Dinasti International Journal of Digital Business Management JPLED
Sufriyadi
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Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Mathematics Other

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Performance of Oily Water Separator at KMP. Merak in Efforts to Prevent Pollution Sufriyadi; Miran; Achmat, Baso; Syamsu
Dinasti International Journal of Digital Business Management Vol. 6 No. 4 (2025): Dinasti International Journal of Digital Business Management (June - July 2025)
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijdbm.v6i4.5117

Abstract

The sea is a vital ecosystem that supports human life and marine biodiversity. However, marine pollution caused by the discharge of oily waste from ships remains a significant environmental issue, despite the existence of national and international regulations. This study aims to examine the performance of the Oily Water Separator (OWS) on the vessel KMP Merak in preventing marine pollution. A qualitative research approach was employed through observation, interviews, and literature review. The findings indicate that several factors influence OWS performance, including clogged coalescer filters, sludge accumulation in the engine bilge, lack of spare parts, and the absence of a structured maintenance system. A decline in OWS performance can lead to marine pollution, ecosystem damage, and disruption of the marine food chain. Solutions include regular maintenance, proper machine monitoring, well-organized spare part management, and maintaining sufficient air pressure in the three-way valve system. This research highlights the importance of consistent and disciplined OWS maintenance as a commitment to preserving the marine environment. The study is expected to serve as a reference for increasing awareness among ship crews and related institutions in the proper operation and maintenance of OWS equipment.
The Influence of Job Satisfaction and Work Motivation on Teacher Performance Sufriyadi
Journal of Practice Learning and Educational Development Vol. 5 No. 3 (2025): Journal of Practice Learning and Educational Development (JPLED)
Publisher : Global Action and Education for Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58737/jpled.v5i3.536

Abstract

This study aims to determine the influence of job satisfaction and work motivation on teacher performance. The method used in this study is a quantitative method. The population in this study amounted to 60 respondents (teachers) from three schools from SDIT Fathurrahman, SDIT Tunas Harapan, SDIT Imam Syafi'I in Tembilahan District, Tembilahan Regency, Riau. Data collection in this study was a questionnaire with a Likert scale that has a range of 1-5. The data analysis technique used multiple linear regression analysis. The results of this study first showed that Job Satisfaction has an influence on teacher performance by producing a t count of 0.166 and a t table value of 1.671 (significance level 5%, n = 60). Second, Work Motivation has an influence on Teacher Performance by producing a t count of 0.190. The third job satisfaction and work motivation on teacher performance in SDIT throughout Tembilahan District is 29.1% meaningful or significant. It is known that the R Square value is 0.291. This job satisfaction and work motivation have an influence on teacher performance of 29.1% on the teacher performance variable, while the remaining 70.9% is influenced by other variables not examined in this study.
Co-Authors Baso Achmat Miran Syamsu