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Jurnal Sains & Teknologi Lingkungan
Published by Universitas Islam Indonesia
ISSN : 20851227     EISSN : 25026119     DOI : -
Core Subject : Science, Education,
Computer Science & IT Education
Jurnal Sains & Teknologi Lingkungan (JSTL) published twice a year in January and June is a scientific journal that publishes scientific research papers and ideas in the field of science and technology related to environmental issues. The journal covers typical subjects of environmental sciences and technologies such as.: Drinking water treatment, wastewater treatment, solid waste treatment, solid waste management, cleaner production, air pollution management, resource recovery, water pollution, soil contamination, and other relevant fields. JSTL published by the Islamic University of Indonesia (UII) only accepts original scientific works that have not been published by other medias. All incoming articles will be reviewed in advance by competent reviewers before being eligible for publication. JSTL (e-ISSN 2502-6119) has been accredited by Ministry of Research, Technology and Higher Education of the Republic of Indonesia.
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Articles 217 Documents
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Studi Pemanfaatan Idle Capacity Instalasi Pengolahan Lumpur Tinja (IPLT) Keputih Surabaya Nurhayati, Ervin; Arseto Yekti Bagastyo; Cynthia Dyah Puspitasari; Joko Pramono; Fathyah, Fathyah; Rahayu, Dewi Puji; Subechi, Dya Nur Mangzila
Jurnal Sains dan Teknologi Lingkungan Vol. 16 No. 2 (2024): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol16.iss2.art6

Abstract

IPLT Keputih, the only fecal sludge treatment plant in Surabaya City, plays a critical role in the city's sanitation infrastructure. Its operation is critical to manage the fecal sludge generated by Surabaya residents, ensuring that the effluent is effectively treated before being safely discharged to the environment. According to previous studies, IPLT Keputih still has significant untapped potential, especially in the Solid Separation Chamber (SSC) and Grease Trap (GT) units, which have idle capacity that can be optimized to improve overall efficiency. The study involved primary and secondary data collection. Primary data was collected through comprehensive field observations and measurements, while secondary data was obtained from relevant agencies. Data analysis showed that IPLT Keputih currently treats an average of 97.71 m3 of septage per day. However, the facility has an idle capacity of 139.89 m3/day, which indicates a great opportunity to improve utilization. The calculation of the existing idle capacity was conducted based on the maximum discharge of sludge entering the IPLT Keputih in 2022. Several scenarios were developed to fully utilize the idle capacity of the SSC and GT units. The scenarios include the optimization of the SSC unit through improved desludging services, the optimization of the SSC and GT through improved non-fecal sludge management services for restaurants, as well as the implementation of a blended approach to improve the overall service of IPLT Keputih.
Identifikasi Identifikasi Jenis, Warna, dan Ukuran Mikroplastik pada Air dan Sedimen di Sungai Buntung, Kabupaten Sidoarjo, Jawa Timur Amelia, Oktavia Eka; Suprayogi, Dedy; Nengse, Sulistiya
Jurnal Sains dan Teknologi Lingkungan Vol. 17 No. 1 (2025): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol17.iss1.art1

Abstract

The river in Sidoarjo has been contaminated with microplastics. One of the rivers in Sidoarjo which has quite a lot of sources of pollution is the Buntung River, such as the presence of rubbish heaps and burning of rubbish around the river. This research aims to determine the type, color and size of microplastics, as well as differences in the abundance of microplastics in water and sediment in the Buntung River, Sidoarjo. This research is quantitative descriptive. The sampling locations were 6 locations. Sample preparation was carried out using a solution of 0.05 M Fe(II), 30% hydrogen peroxide (H2O2), and NaCl. Then the samples were identified using a stereo microscope and the EpView application, while for comparison of the average abundance of water and sediment using the Independent T-Test. The results showed that in the water samples the most dominant type was 39% fragments, 30% blue, 53% measuring 0.1 mm - 0.5 mm, and the average abundance was 3,725 particles/m3. Meanwhile, in the sediment samples, the most dominant type was fragments 46%, blue 28%, size 0.1 mm – 0.5 mm 70%, and an average abundance of 1,735 particles/kg. The results of statistical tests show that there are differences in the abundance of microplastics in the water and sediment in the Buntung River.
Analisis Kualitas Air, Limbah dan Udara pada Industri Perhotelan: Studi Kasus Hotel X di Yogyakarta Saprian, Saprian; Siswoyo, Eko
Jurnal Sains dan Teknologi Lingkungan Vol. 16 No. 2 (2024): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol16.iss2.art1

Abstract

Environmental quality is one of the key factors in supporting the tourism industry, where good environmental conditions are expected to be an attraction for tourists to visit a city. Various environmental problems such as pollution of river water bodies, ground water and air must receive serious attention, for example through environmental quality monitoring activities by hotel industry players. The current research aims to evaluate environmental quality conditions in four-star hotels and provide recommendations for improvement. Data collection was carried out by surveys and direct monitoring of environmental conditions in several four-star hotels. The research findings can help hotel managers and local governments in improving sustainability and environmental management in the hotel industry. Specifically, the study focuses on aspects such as clean water, wastewater, ambient air, waste management, and noise pollution. The study results show that although the ambient air quality around four-star hotels meets quality standards, several parameters exceed the threshold. The concentration of BOD and COD of the effluent from filter unit are 36,8 mg/l (standard 28 mg/l) and 72,5 mg/l (standard 50 mg/l), respectively. Wastewater from hotels significantly exceeds water quality standards, while the use of filters reduces the negative impact of wastewater pollution. The research serves as a contribution to the development of future studies related to environmental quality and workplace conditions in the Indonesian hotel industry.
Perbandingan Model Decision Tree untuk Prediksi Intensitas Hujan di Juanda, Sidoarjo, Jawa Timur Taufiqi, Rafli Iqbal; Pramuji, Veimas Mahardika; M. Arifudin, M. Arifudin; Saputra, Agung Hari
Jurnal Sains dan Teknologi Lingkungan Vol. 17 No. 1 (2025): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol17.iss1.art2

Abstract

Rainfall intensity is one of the key parameters in climate dynamics and is strongly associated with the increasing occurrence of hydrometeorological disasters. This study aims to evaluate and compare the performance of three decision tree–based machine learning models in predicting rainfall intensity in the Juanda region, Sidoarjo, East Java. The data used consist of daily weather observations from the Juanda Class I Meteorological Station during the period 2018–2022, covering 13 meteorological variables. The models compared include the Extra Trees Classifier, Random Forest Classifier, and XGBoost Classifier, with performance evaluation based on accuracy, precision, recall, F1 score, and Area Under the Curve (AUC). The results indicate that the Extra Trees Classifier demonstrates the best performance, with an accuracy of 0.8123; precision of 0.8151; recall of 0.8123; AUC of 0.9158; and F1 score of 0.8126. Relative humidity (Rh) was identified as the most influential variable in predicting rainfall intensity across all three models. These findings provide further insights into the relationship between daily weather parameters and rainfall intensity and contribute to the development of more accurate predictive systems as a basis for hydrometeorological disaster mitigation in the study area.
PENDAYAGUNAAN LIMBAH DIAPER SEBAGAI BAHAN BAKAR MENGGUNAKAN PROSES DENSIFIKASI: Pendayagunaan Limbah Diaper sebagai Bahan Bakar Menggunakan Proses Densifikasi Muyasaroh, Nurul; Ayuningtyas, Endah
Jurnal Sains dan Teknologi Lingkungan Vol. 16 No. 1 (2024): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol16.iss1.art2

Abstract

Popok sekali pakai (diaper) menjadi pilihan mayoritas ibu karena kepraktisannya. Hal ini menimbulkan limbah diaper yang semakin hari semakin menumpuk. Pendayagunaan limbah diaper masih sangat jarang dilakukan. Selama ini limbah diaper ditimbun di tempat pembuangan sampah atau dibuang sembarangan di sungai. Kondisi ini menimbulkan dampak negatif terhadap lingkungan, baik berupa pencemaran udara, air, tanah serta berkurangnya estetika lingkungan. Terlebih jika terdapat feses pada limbah diaper sehingga menimbulkan pencemaran bakteri Escherichia coli. Penelitian ini bertujuan untuk mengolah limbah diaper menjadi biofuel pellet yang renewable dan sustainable menggunakan proses densifikasi. Tujuan selanjutnya dari penelitian ini adalah untuk mengetahui pengaruh kelembaban terhadap nilai kalor biofuel pellet, menganalisis proksimat serta membandingan angka Escherichia coli limbah diaper sebelum dan sesudah diolah menjadi biofuel pellet. Proses pembuatan biofuel pellet dilakukan dengan mengumpulkan limbah diaper; menghancurkannya menggunakan alat pencacah; mengeringkan dan mensterilkannya; kemudian mencetak menjadi biofuel pellet. Pengujian nilai kalor dilakukan berdasarkan pedoman ASTM D-2015 dan perhitungannya berdasarkan pedoman ASTM D-3175. Analisis proksimat dilakukan berdasarkan pedoman ASTM D-3174, ASTM D-1762-84, ASTM D-3172 dan ASTM D-2395. Limbah diaper dapat diolah menjadi biofuel pellet menggunakan proses densifikasi. Semakin rendah kelembaban, maka nilai kalor biofuel pellet semakin tinggi. Biofuel pellet dengan kelembaban 0% memiliki nilai kalor sebesar 6181,9 kal/g, kadar zat volatil 74,55%, kadar abu sebesar 15,25%, kadar karbon terikat sebesar 10,20% dan densitas sebesar 0,86 . Nilai kalor, kadar zat volatil dan densitas biofuel pellet ini memenuhi standar SNI 8021:2014. Sedangkan kadar abu dan kadar karbon terikat belum memenuhi standar. Angka Escherichia coli limbah diaper sebesar  cfu/g, sedangkan setelah diolah menjadi biofuel pellet menurun drastis yaitu <10 cfu/g.
Analisis Sebaran Emisi SO₂ dan NO₂ dari Cerobong Boiler Industri Pengolahan Kelapa Sawit dengan Model AERMOD di PT Perkebunan Nusantara VI Unit Usaha Pinang Tinggi, Kabupaten Muaro Jambi Aprilia, Arifa; Anggraini, Febri Juita; Yasdi, Yasdi
Jurnal Sains dan Teknologi Lingkungan Vol. 17 No. 1 (2025): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol17.iss1.art6

Abstract

PT Perkebunan Nusantara VI Unit Usaha Pinang Tinggi uses biomass fuel that can produce the main pollutants, SO2 and NO2, dispersed around industry and have the potential to cause air pollution. The study using the AERMOD model aims to determine dispersion of SO2 and NO2 concentrations at receptors, validation of the AERMOD model with RMSPE, contribution of boiler chimney emission to the receptors, and dispersion of actual unmeasured receptor concentration compared to air quality standards. The results showed that the highest and lowest dispersion of SO2 at 1-hour in Kantin Karyawan PKS was 35,85 μg/m3 and Kantor & Gudang was 26,85 μg/m3, while at 24-hours in Halaman Kantor PKS was 25,72 μg/m3 and Perumahan Karyawan PKS (Pondok 5) was 23,99 μg/m3.  The highest and lowest  dispersion of NO2 at 1-hour in Kantin Karyawan PKS was 115,64 μg/m3 and Kantor & Gudang was 38,77 μg/m3, while at 24-hours in Kantin Karyawan PKS was 36,36 μg/m3 and Perumahan Karyawan PKS (Pondok 5) was 24,36 μg/m3. AERMOD model validation for SO2 19,94%<25% (valid) and NO2>25% (invalid). The highest and lowest chimney emission contribution of SO2 at 1-hour in Halaman Kantor PKS was 10,35% and Halaman Toko Bu Sakti was 0%, while at 24-hours in Halaman Kantor PKS was 6,77% and Perumahan Karyawan PKS (Pondok 5) was 0,62%. The highest and lowest contribution of NO2 at 1-hour in Halaman Kantor PKS was 18,46% and Halaman Toko Bu Sakti was 0%, while at 24-hours in Halaman Kantor PKS was 30,12% and Perumahan Karyawan PKS was 0,92%. The actual unmeasured receptors are smaller than the ambient air quality standards.
Analisis Kandungan Merkuri dalam Sedimen dan Keong Sawah (Pila Ampullacea Linn.) Danau Lebo Sumbawa Barat Nabila, Riska; Purwati, Nining; Jayanti, Ervina Titi
Jurnal Sains dan Teknologi Lingkungan Vol. 16 No. 1 (2024): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol16.iss1.art4

Abstract

Traditional gold mining around Lake Lebo has a positive impact on people's income, but it has a negative impact on the waters of Lake Lebo. This is evidenced by a 2016 study conducted on 2016 that reported mercury pollution in the sediments and fish of Lake Lebo. The objective of this study is to determine the mercury content in the sediments of Lake Lebo, West Sumbawa. The sampling employed purposive sampling with four research stations based on their utilization around Lake Lebo. The mercury content in the samples was tested using an AAS (Atomic Absorption Spectrophotometer). The sediments of Lake Lebo Meraran contain 0.70 ppm of mercury (lightly polluted). The Meraran Paddy Field Sediment contains 0.31 ppm of mercury (tolerable). The sediments of Lake Lebo Seloto contain 0.22 ppm of mercury (normal). The mercury content in Lake Lebo Rice Snails is less than 0.0001 (undetectable), making them safe for public consumption. Several factors contribute to the undetected mercury in the samples, namely rainfall, floods, waste storage, and phytoremediation by aquatic plants.
Monitoring Macroinvertebrates as Bioindicators and Water Physicochemical Parameters in the Tambak Rejo River, Sidoarjo. Robbi, Adinda Atthiyatur; Munfarida, Ida; Oktorina, Sarita; Suprayogi, Dedy; Setyowati, Rr Diah Nugraheni
Jurnal Sains dan Teknologi Lingkungan Vol. 16 No. 1 (2024): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol16.iss1.art3

Abstract

Sungai Tambak Rejo merupakan sungai yang berada di desa Tambak Rejo, Kabupaten Sidoarjo. Merupakan sungai utama yang mengaliri tiga kelurahan yaitu tambak sumur, tambak rejo dan tambak sawah. Ketiga lokasi aliran sungai menjadikan sungai Tambak Rejo memiliki berbagai karakteristik limbah yang dihasilkan baik limbah domestik, limbah industri dan limbah pertanian. Hal ini tentunya dapat menyebabkan penurunan kuaitas air sungai, apabila limbah yang dihasilkan tidak diolah dengan benar. Pemantauan makroinvertebrata sebagai bioindikator kualitas air sungai merupakan tujuan penelitian ini, dimana biota ini dapat digunakan sebagai indikator biologis karena adanya habitat dan keberadaannya sangat dipengaruhi secara langsung di dalam perairan. Pengukuran parameter fisik-kimia air juga dilakukan untuk menyesuaikan kualitas air sungai dengan baku mutu yang telah ditetapkan, paramet yang diukur ialah pH, Suhu, TSS, BOD, COD dan Mn. Analisis makroinvertebrata menggunakan dua metode yakni, metode indeks biotilik dan metode indeks biotik, metode indeks biotilik menunjukkan kualitas air sungai Tambak Rejo dikategorikan sebagai sungai tercemar sedang pada stasiun I-II dan tercemar ringan pada stasiun III. Pada indeks biotik BMWP-ASPT, Sungai Tambak Rejo dikategorikan sebagai tercemar sedang pada stasiun I dan III, dan pada stasiun II dikategorikan sebagai tercemar berat. Hasil laboratorium parameter fisik-kimia didapatkan beberapa parameter di tiap staisuan yang melebihi baku mutu air sungai kelas II siantaranya, BOD dan COD ketiga stasiun memiliki  nilai yang melebihi baku mutu, BOD pada pada titik berkisar 10,5 mg/l - 11,36 mg/l, BOD pada staisun II berkisar 10,58 mg/l - 12,04 mg/l, BOD pada stasiun III berkisar 11,4 mg/l - 11,9 mg/l. COD stasiun I berkisar pada 37,95  mg/l - 39,2 mg/l, pada stasiun II 51,88 mg/l  - 58,67 mg/l,  pada stasiun III sebesar 28,61 mg/l, hasil yang didapat dari penelitian ini menunjukkan Sungai Tambak Rejo diperlukan pengelolaan pencemaran perairan lebih lanjut.
Uji Efektivitas Resin Penukar Ion Amberlite untuk Penurunan TDS, Angka Permanganat, dan Kadar Warna Air Sungai Bengawan Solo: indonesia Nashira, Alimatun; Anggraeni, Lutvia Yuniar; Muhammad, Nadhev Fadil; Arafahira, Neyza
Jurnal Sains dan Teknologi Lingkungan Vol. 17 No. 1 (2025): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol17.iss1.art3

Abstract

Despite often being reported as highly polluted, water from the Bengawan Solo River is widely used for irrigation, farming, industry, sanitation, and even as feedstock for drinking water. To ensure the safety and health of the consument, several parameters for water quality, such as COD, TDS, and color, have been set by the Indonesian government. The quality of the water can be upgraded after a series of treatments, one of which is by ion exchange resin. This research aims to study the effectiveness of Amberlite, one of the most commonly available resins, to treat water from the Bengawan Solo River. The initial river water sample taken in Surakarta shows that it did not qualify for sanitation purposes with TDS 2352 mg/L; color 84 TCU; permanganate number 157,6 mg/L; and pH 5,14. Treatment by cation exchange resin Amberlite HPR 1100 Na decreased the permanganate number, TDS, and color up to 21,02%; 34,01%; and 76,19% respectively, while by anion exchange resin Amberlite HPR 4800 Cl the decreases were up to 10,15%; 32,14% and 86,9%. Using cation exchange followed by anion exchange resin improves the effectiveness slightly, the removal rate of permanganate number, TDS, and color was 25,38%; 38,27%; and 92,86%. Each treatment did not change the pH significantly, while the electrical conductivity change was varied. To get the optimum pollutant removal, the resin had to be treated by HCl 1,5 N for cation resin and by NaOH 1,5 N for anion resin. The results show that Amberlite ion exchange resin was effective only for tertiary water treatment, especially for color removal.
Adsorpsi Gas CO Pada Gas Buang Sepeda Motor Menggunakan Biochar dari Cangkang Buah Karet: indonesia -, nur faizah; -, Aryo Sasmita; Elvie Yenie
Jurnal Sains dan Teknologi Lingkungan Vol. 17 No. 1 (2025): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol17.iss1.art4

Abstract

Biochar is often used as a material to make adsorbents. The largest contributor to air pollution is transportation emissions which have a negative impact on the environment and human health.  Efforts to reduce emissions from transportation, especially motorized vehicles, are using biochar. Biochar is in the form of a solid precipitate which has a large surface area and is obtained from thermal decomposition of biomass without using oxygen or in limited oxygen conditions which contains carbon so it has a high absorption capacity which can be used as an adsorbent. This research aims to analyze the effect of variations in the shape of the adsorbent on the adsorption of CO gas in motorbike exhaust gas using biochar from rubber fruit shells. Biochar was prepared by carbonization process at 5000C for 1 hour using 10% H3PO4 activator and sieving with 100 mesh sieve. The biochar product was then tested using proximate analysis. Proximate analysis results show biochar complies with SNI 06-3730-1995 with a water content value of 5%; ash content 4.2%; volatile matter 4.5%; and fixed carbon 86.3%. The results showed that the highest allowance for CO gas emissions on motorbikes occurred in the first test of 73.768% with a tube shape and a media length of 3 cm. The best adsorption capacity value occurred in the first test with a length of 3 cm biochar media, namely 138.738 mg/g. The results of this study concluded that biochar from rubber fruit shells met quality standards and could be used as an alternative absorbent for gas emissions from motorcycles.

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