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All Journal Sustinere: Journal of Environment and Sustainability Prosiding Seminar Nasional Sains dan Teknologi Terapan Al-Ard: Jurnal Teknik Lingkungan Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Journal of Earth and Marine Technology (JEMT) Lowland Technology International Journal of Applied Sciences, Management and Engineering Technology (JASMET)
Yulfiah, Yulfiah
Institut Teknologi Aditama Surabaya
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Public Health Social Sciences Transportation

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KUALITAS BITUMEN ASBUTON PT. WIJAYA KARYA BITUMEN KABUPATEN BUTON, SULAWESI TENGGARA Mardiana Musa; Yulfiah Yulfiah
Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN) Vol 3, No 1 (2021): Prosiding
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.semitan.2021.1954

Abstract

PT. Wijaya Karya Bitumen berada di Kabupaten Buton, Provinsi Sulawesi Tenggara. Aspal merupakan bahan hidrokarbon yang bersifat melekat (adhesive), berwarna hitam kecoklatan, tahan terhadap air, dan visoelastis. Aspal alam merupakan aspal yang terdapat di alam, terbentuk dalam batuan pembawa minyak bumi. Penelitian ini ditujukan untuk menentukan kualitas bitumen pada Aspal Buton dengan menggunakan metode Sohklet. Metode Sohklet digunakan untuk mengekstraksi suatu senyawa dari material padat. Prinsip kerja dari peralatan Sohklet adalah penyaringan secara berulang-ulang. Sampel Aspal Buton diperoleh dari hasil pengeboran di blok C pertambangan Kabungka. Hasil penelitian menunjukkan bahwa, kadar air rata-rata berkisar antara 1,00% - 5,80% dan kadar bitumen rata-rata berkisar antara 23,00% – 27,06%. Kondisi ini menandakan bahwa kadar air rendah dan kadar bitumen tinggi, atau dapat disimpulkan bahwa bitumen pada Aspal Buton berkualitas baik.
PENGUKURAN TINGKAT IMPLEMENTASI REKOMENDASI HASIL KAJIAN KINERJA LINGKUNGAN PADA LIMA UKM DI SURABAYA Yulfiah Yulfiah
Al-Ard: Jurnal Teknik Lingkungan Vol. 4 No. 2 (2019): Maret
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1059.504 KB) | DOI: 10.29080/alard.v4i2.483

Abstract

Actually Small Medium Enterprises (SMEs) in the city of Surabaya give negative contributions to the environment. Related to this, two studies have been conducted to help overcome the negative impact. The first stage of the study was analyzed environmental performance of SMEs in Surabaya. As a result of the study, recommendations for activities for SMEs have been formulated to be more pro-environment. The next phase of the second phase of the research, which consists of the level of implementation of the assessment that has been given, the results that can be done regarding the discussion carried out. The results of the second phase of research that discusses the level of implementation of the assessment given to SMEs varies from 50-90%. Thus, SME awareness to make its company a Pro Environment company still has to improve. The formulation of an educational model for SMEs is needed, so that the environmental performance carried out is not limited to passing legislation. Moreover, the performance of the environment implemented by the company is approved, because it provides a larger company and environmental sustainability.
An AN ANALYSIS OF SURABAYA RIVER CARRING CAPACITY BASED ON THE LAND-USE DIFFERENCES Yulfiah Yulfiah Yulfiah
Lowland Technology International Vol 21 No 3, Dec (2019)
Publisher : International Association of Lowland Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.0001/ialt_lti.v21i3, Dec.890

Abstract

Surabaya River has been indicated receiving a great pressure from the activities of people living and industries along the river. Currently, this river is still the major source of water supply for Water Source Department in Surabaya City (“PDAM Surabaya”). For this reason, the prediction of carring capacity in Surabaya River is needed. The ecosystem degradation is expected to decrease. The calculation is based on the differences of the existing land-use in the Surabaya watershed. The results of the load capacity demonstrate that the maximum BOD (Biologycal Oxygen Demand) and permitted BOD waste have a relatively wide tolerance span on some segments. Therefore, it takes a long time to reach critical points and positions on some segments. However, the maximum tolerance of BOD load and BOD of waste permitted in the dry season is lower than in the rainy season. Briefly, excessive waste disposal must be controlled to create a sustainable ecosystem in Surabaya River.
Optimalisasi Kinerja Instalasi Pengolahan Air Limbah Industri PT. X Untuk Perlindungan Sumberdaya Air Yulfiah Yulfiah
Jurnal Sumberdaya Bumi Berkelanjutan (SEMITAN) Vol 1, No 1 (2022)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.semitan.2022.3218

Abstract

Dalam operasional proses produksinya sebagai industri pakan ternak, PT. X menghasilkan limbah yang harus diolah melalui IPAL (Instalasi Pengolahan Limbah Cair). Namun demikian, terdapat indikasi bahwa IPAL PT. X perlu peningkatan kinerja. Oleh karena itu, melalui penelitian ini telah dilakukan evaluasi kinerja IPAL PT. X pada aspek teknis, sehingga IPAL dapat beroperasi optimal dan kualitas effluent yang dihasilkan memenuhi baku mutu. Dengan demikian kualitas effluent mampu memberikan jaminan bagi perlindungan kelestarian sumberdaya alam di sekitarnya, khususnya sumberdaya air. Secara teknis IPAL PT. X memerlukan penambahan unit tangki kontrol, bak pengendapan akhir, bak anaerobic aerob biofilter, dan menggunakan media filter sarang tawon. Kata kunci: air limbah, instalasi pengolah limbah
Exploring the link between Atmospheric conditions and Acid rain prevalence: a 12-year study at Juanda International Airport, Sidoarjo, Indonesia. Agatha Mayasari; Yulfiah Yulfiah
Journal of Earth and Marine Technology (JEMT) Vol 3, No 2 (2023)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2023.v3i2.4557

Abstract

Acid rain is a pressing environmental concern, posing severe threats to the well-being of various forms of life. Our research sought to evaluate the acidity level of rainwater at Juanda International Airport, attempting to correlate it with weather parameters. We analyzed a span of twelve years, inspecting the relationship of rainwater pH with upper atmospheric conditions, specifically focusing on air temperature and humidity. Utilizing a statistical approach enabled us to draw meaningful conclusions from the extensive data at hand. Our analysis revealed that a significant 40% of the rain data fell under the acid rain category, demonstrating the alarming prevalence of the phenomenon in the region. A fascinating insight uncovered through our study was the existence of a correlation between the pH level of the rainwater and the air temperature and humidity values, particularly in zones where rain clouds tend to develop. This finding amplifies our understanding of the intricate relationships between acid rain formation and atmospheric conditions. We posit that weather parameters like temperature and humidity may have an integral role in acid rain production, thereby influencing the ecosystem's balance. Continued research in this realm can potentially help in creating better predictive models and in devising effective strategies for combating the devastating effects of acid rain.
Co-Authors Agatha Mayasari Budisantoso Wirjodirdjo Mardiana Musa Maritha Nilam Kusuma Nikmah, Min Sai’in Pissera, Rosa Canina Solossa, Herce Farida Wahyono Hadi