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Moch Shafansyah Yumna Argia
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Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Evaluasi dan Rekomendasi Pengelolaan Limbah Bahan Berbahaya dan Beracun Pada Industri Pembuatan Suku Cadang di PT X, Kota Surabaya Moch Shafansyah Yumna Argia; Muhammad Faisal Fadhil
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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This study aims to evaluate the management of hazardous and toxic waste (B3) at PT. X, a spare parts manufacturing industry in Surabaya. Hazardous waste management is a major challenge in this industry due to its hazardous, corrosive, flammable and environmentally harmful properties if improperly handled. Data was collected through field observations, interviews with relevant stakeholders, and analysis of regulations and company reports. The results show that PT. X's level of compliance in hazardous waste management is 61.1%, which is considered fair but not ideal. Key deficiencies were identified in the areas of packaging, labelling and storage. The waste packaging does not fully match the waste characteristics, while the labelling is fragile and lacks complete information. In addition, the storage area is located within the production area, making it unsafe and difficult to access. To improve the management of hazardous waste, the study recommends the use of appropriate packaging materials, durable labels with comprehensive information, and the design of storage facilities that meet regulatory standards. Implementing these recommendations is expected to improve the effectiveness of hazardous waste management, reduce pollution risks and protect both the environment and human health.
Pengaruh pH Tanah Terhadap Metode Aerasi Dalam Stabilisasi Logam Berat Timbal (Pb2+) Moch Shafansyah Yumna Argia; Muhammad Abdus Salam Jawwad
Jurnal Serambi Engineering Vol. 10 No. 4 (2025): Oktober 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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This study examines the effect of soil pH variation on the effectiveness of the aeration method in stabilizing the heavy metal lead (Pb2+). Lead contamination from industrial waste and fossil fuels is a serious environmental problem as it is carcinogenic and can pollute ecosystems, including plants, posing a health risk to humans. Soil remediation is needed to address this issue, and soil aeration is one promising method. However, the effectiveness of aeration is highly influenced by soil environmental conditions, particularly pH, as low pH makes heavy metals easily soluble and mobile. This quantitative experimental study used 3 reactors with variations in pH treatment (acidic pH 4, neutral pH 6.5, and alkaline pH 10) and aeration duration (6 hours/day). Samples were analyzed using Atomic Absorption Spectrophotometry (AAS) to measure the remaining lead concentration, and the stabilization efficiency was calculated from the difference in concentration before and after treatment. The results showed that the alkaline pH treatment (pH 10) consistently provided the highest lead reduction efficiency, reaching 78.7% at a 24-hour aeration duration. Increasing the pH caused the Pb2+ ions to precipitate into insoluble and less toxic compounds. Statistical analysis using ANOVA confirmed that pH and aeration duration had a significant effect on the efficiency of lead (Pb2+) reduction.
Co-Authors Muhammad Abdus Salam Jawwad Muhammad Faisal Fadhil