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All Journal Jurnal Dampak Journal Serambi Engineering (JSE) JURNAL REKAYASA KIMIA & LINGKUNGAN
Serlina, Yega
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Analyzing And Mapping of Sound Pressure Level in The Packing Plant Unit of PT Semen Padang Teluk Bayur Ryansyah, Kenan Muhammad; Lestari, Resti Ayu; Bachtiar, Vera Surtia; Serlina, Yega; Latif, Mhd Talib
Jurnal Rekayasa Kimia & Lingkungan Vol 20, No 1 (2025): Jurnal Rekayasa Kimia & Lingkungan (June, 2025)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v20i1.43898

Abstract

The cement industry is one of the strategic industries that has positive and negative impacts. One of the negative impacts is noise pollution. This research aimed to compare the sound pressure level (SPL) to the standard, analyzed the meteorological influence on SPL, and conducted noise level mapping. The noise measurement according to SNI 7231 of 2009. The SPL data was collected by using a Sound Level Meter at 36 points. Additionally, questionnaires were distributed to workers at the PT Semen Padang Teluk Bayur Packing Plant Unit. Measurement of noise used the grid method with sampling points spaced 20-40 meters apart, then analyzed the correlation and influence of meteorological on SPL, and noise mapping with Surfer 27. The results showed that the highest SPL came from the compressor engine at 85.7 dBA, and the lowest SPL was in the office area at 58.1 dBA. The SPL in this study was influenced by meteorological conditions such as temperature, air humidity, wind speed, and air pressure. There was a correlation between temperature and SPL with a value (r) of 0.9936 (very strong) and a correlation between air humidity and SPL with a value (r) of 0.9962 (very strong).
Evaluasi Tingkat Kebisingan dan Rekomendasi Teknologi Pengendalian Bising di PT X Serlina, Yega; Evitayani; Yaura Jihan Shabirah; Miftahul Salami
Jurnal Serambi Engineering Vol. 10 No. 4 (2025): Oktober 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Noise problems have the potential to occur in PT X which focuses on the provision, processing, and distribution of steel and ready-mix concrete materials. This study was conducted to identify the types and sources of noise, evaluate noise levels, and evaluate the noise control system carried out at PT X. The measurement method used refers to SNI 7231: 2009 concerning the Method of Measuring Noise Intensity in the Workplace and SNI 8427: 2017 concerning Measurement of Environmental Noise Levels. The results of measurements carried out at 4 measurement points showed noise levels in the production area of 86.43 dB (A), and 84.94 dB (A), in the tower area of 79.77 dB (A) and in the concrete area of 95.27 dB (A). Evaluation of the Regulation of the Minister of Manpower of the Republic of Indonesia No. 5 of 2018 showed that noise at points 1 and 4 exceeded the threshold value. PT X carries out technical noise control in the form of engineering control and environmental engineering; administrative control in the form of division of working hours, work rotation, health checks and installation of safety signs; and the use of PPE in the form of earplugs. However, there are still noise control efforts that need to be optimized in their implementation at PT X, namely tightening the rules for the use of PPE and increasing noise absorption areas such as by adding tree planting areas that have the ability to reduce noise.
Uji Kinerja Tungku Biomassa Berbahan Bakar Pelet Cangkang Kemiri Anggriawan, Tegar; Goembira, Fadjar; Serlina, Yega
Dampak Vol. 23 No. 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.23.1.113-128.2026

Abstract

Cangkang kemiri merupakan salah satu jenis biomassa yang berpotensi digunakan sebagai bahan bakar alternatif. Cangkang ini diolah menjadi biopellet untuk digunakan sebagai bahan bakar kompor biomassa TLUD. Dua variasi biopellet tempurung kemiri yaitu biopelet yang digunakan dengan penambahan tepung tapioka 10% sebagai bahan pengikat (KT10), dan biopellet tanpa bahan pengikat (K0). Penelitian ini bertujuan untuk mengevaluasi kinerja kompor biomassa TLUD dengan menghitung nilai emisi PM2,5, CO, dan CO2. Uji kinerja kompor mengikuti prosedur yang tercantum dalam SNI 7926:2013 tentang Kinerja Kompor Biomassa. Hasil pengujian menunjukkan nilai emisi PM2,5 dari KT10 sebesar 130,59 ± 7,13 mg/kg, dan dari K0 sebesar 625,27 ± 16,17 mg/kg. Nilai emisi CO sebesar 4,05 ± 0,08 g/kg untuk KT10 dan 3,01 ± 0,27 g/kg untuk K0. Nilai emisi CO2 sebesar 69,42 ± 1,72 g/kg untuk KT10 dan 67,24 ± 1,74 g/kg untuk K0. Nilai emisi PM2,5, CO, dan CO2 ini memenuhi batasan yang ditetapkan SNI 7926:2013. K0 lebih baik dari KT10 dalam kualitas pelet, CO, dan CO2, sedangkan KT10 lebih baik dari K0 dalam PM2,5 dan tingkat konsumsi bahan bakar. Kompor biomassa TLUD memenuhi persyaratan konsumsi bahan bakar spesifik, namun tidak memenuhi persyaratan efisiensi pembakaran dan efisiensi termal.
Co-Authors Anggriawan, Tegar Evitayani Fadjar Goembira Latif, Mhd Talib Lestari, Resti Ayu Miftahul Salami Ryansyah, Kenan Muhammad Vera Surtia Bachtiar Yaura Jihan Shabirah