Jurnal Sains Teknologi Lingkungan最新文献

{"title":"Estimation of Greenhouse Gas Emission Burden of Livestock Sector in East Java Province, Indonesia","authors":"Didik Nur Edi, Nining Haryuni","doi":"10.55981/jtl.2023.1004","DOIUrl":"https://doi.org/10.55981/jtl.2023.1004","url":null,"abstract":"Tujuan dari analisis ini adalah untuk memetakan kontribusi gas metana dan dinitro oksida dari sektor peternakan di setiap wilayah yang ada di Provinsi Jawa Timur sebagai dasar perencanaan dalam pengembangan kawasan peternakan yang berkelanjutan dan berwawasan lingkungan. Metode analisis menggunakan pendekatan analisis Tier 1. Data yang digunakan adalah data sekunder dari BPS Jawa Timur Tahun 2021. Hasil analisis menunjukkan bahwa beban gas rumah kaca di Provinsi Jawa Timur yaitu CH4 sebanyak 221,80 Gg CH4 Th-1 dan N2O sebanyak 168,42 Gg N2O Th-1 dengan profil beban tiap wilayah kabupaten/kota tidak merata. Beban gas rumah kaca tertinggi didapatkan di Kabupaten Malang. Penyumbang gas rumah kaca tertinggi dari sub sektor peternakan adalah ternak sapi potong sebesar 75,20% CH4 dan 52,30% N2O terhadap total sektor peternakan. \u0000ABSTRACT \u0000The purpose of this analysis is to map the contribution of methane gas and nitrous oxide from the livestock sector in each region in East Java Province as a basis for planning in the development of sustainable and environmentally friendly livestock areas. The analysis method uses a Tier 1 analysis approach. The data used is secondary data from the BPS East Java in 2021. The results of the analysis show that the greenhouse gas load in East Java Province is CH4 as much as 221.80 Gg CH4 per year and N2O as much as 168.42 Gg N2O per year where the load profile is uneven for each district/city. The highest greenhouse gas load was found in Malang Regency. The highest greenhouse gas contributor from the livestock sub-sector is beef cattle with 75.20% CH4 and 52.30% N2O of the total livestock sector.","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81675723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pemanfaatan Limbah Ampas Tebu untuk Pembuatan Plastik Biodegradable dengan Metode Melt Intercalation","authors":"Elvi Kustiyah, D. Novitasari, Laras Andia Wardani, Haudi Hasaya, M. Widiantoro","doi":"10.55981/jtl.2023.993","DOIUrl":"https://doi.org/10.55981/jtl.2023.993","url":null,"abstract":"Bagasse is an environmental problem that has not been fully utilized yet. Meanwhile, bagasse has a relatively high cellulose content which has the potential as a basic material for bioplastics production. This study aims to obtain biodegradable plastic by utilizing bagasse. The melt intercalation method or phase inversion technique is carried out through evaporation of the solvent after the printing process on a glass plate. The results showed that for the manufacture of bioplastics with the addition of chitosan and glycerol plasticizer, the optimum concentration of bagasse cellulose was at a concentration of 5% (w/v) with a percent elongation of 8.53% and a tensile strength of 7.68 MPa. Furthermore, the Fourier Transform Infra-Red (FTIR) characterization shows that there are OH, CH, and C=O functional groups in biodegradable plastics which are the constituent elements of each component such as cellulose, hemicellulose and lignin. \u0000  \u0000ABSTRAK \u0000Ampas tebu menjadi suatu permasalahan lingkungan yang masih belum banyak dimanfaatkan. Sementara itu, ampas tebu memiliki kandungan selulosa yang relatif tinggi, sehingga dapat berpotensi sebagai bahan dasar pembuatan bioplastik. Penelitian ini bertujuan untuk mendapatkan plastik biodegradable dengan memanfaatkan limbah ampas tebu. Metode melt intercalation atau teknik inversi fase dilakukan melalui penguapan pelarut setelah proses pencetakan pada pelat kaca. Hasil penelitian menunjukkan bahwa pembuatan bioplastik dengan penambahan kitosan dan plastisizer gliserol, didapatkan konsentrasi optimum selulosa ampas tebu yaitu pada konsentrasi 5% (b/v) dengan persen elongation 8,53% dan kekuatan tarik 7,68 MPa. Selanjutnya, karakterisasi Fourier Transform Infra-Red (FTIR) menunjukkan bahwa terdapat gugus fungsi OH, CH dan C=O pada plastik biodegradable yang merupakan unsur penyusun komponen masing-masing seperti selulosa, hemiselulosa dan lignin.","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87457650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hubungan Pengetahuan, Peran Pengelola, dan Ketersediaan Tempat Sampah dengan Partisipasi Pedagang dalam Pengelolaan Sampah di Pasar Umum Caruban","authors":"Syahdatul Nabila Indana Zulfa","doi":"10.55981/jtl.2023.992","DOIUrl":"https://doi.org/10.55981/jtl.2023.992","url":null,"abstract":"By 2020, waste generation in Indonesia reached 33.32 million tons, with the market being the second largest contributor. Solid waste has become a national problem, therefore it should be managed in an integrated way so it doesn’t cause health impairments for the community and the environment. This study was conducted to determine whether there was a relationship between knowledge, the role of market managers, dan the availability of trash bins with the participation of traders in waste management at Pasar Umum Caruban. This study used quantitative methods with a cross-sectional study design. The sampling technique used was simple random sampling and the bivariate data analysis used the chi-square test. The sample for this study amounted to 113 respondents. The results showed that there was a relationship between the role of market managers (p value = 0.000) dan the availability of trash bins (p value = 0.000) with the participation of sellers in waste management, while the knowledge variable (p value = 0.971) did not show a relationship with the participation of sellers in waste management. It is recommended that market managers provide education to sellers about the importance of waste management so that they want to actively participate in waste management. It is also necessary to make written regulations and facilitate facilities for trash bins that are spread evenly dan easily accessible to sellers. \u0000  \u0000ABSTRAK \u0000Timbulan sampah di Indonesia pada tahun 2020 mencapai 33,32 juta ton dan penyumbang kedua terbesar adalah berasal dari pasar. Sampah telah menjadi permasalahan nasional sehingga pengelolaannya perlu dilakukan secara terpadu agar tidak menimbulkan gangguan kesehatan bagi masyarakat dan lingkungan. Penelitian ini dilakukan untuk mengetahui apakah terdapat hubungan antara pengetahuan, peran pengelola pasar, dan ketersediaan tempat sampah dengan partisipasi pedagang dalam pengelolaan sampah di Pasar Umum Caruban. Penelitian ini menggunakan metode kuantitatif dengan desain studi cross sectional. Teknik sampling yang digunakan adalah simple random sampling dan analisis data bivariat menggunakan uji chi-square. Sampel penelitian ini berjumlah 113 responden. Hasil penelitian menunjukkan adanya hubungan peran pengelola pasar (p value = 0,000) dan ketersediaan tempat sampah (p value = 0,000) dengan partisipasi pedagang dalam pengelolaan sampah, sedangkan untuk variabel pengetahuan (p value = 0,971) tidak menunjukkan adanya hubungan dengan partisipasi pedagang dalam pengelolaan sampah. Disarankan pengelola pasar untuk memberikan edukasi kepada pedagang tentang pentingnya pengelolaan sampah agar pedagang mau berpartisipasi secara aktif pada pengelolaan sampah, pembuatan peraturan tertulis juga perlu dilakukan, dan memfasilitasi sarana tempat sampah yang tersebar merata dan mudah dijangkau pedagang.","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74741565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perancangan Biosand Filtration untuk Kualitas Air Berdasarkan Tekanan Pompa dari Limbah Industri Kelapa Sawit","authors":"Arjuna Neni Triana, Mega Ariana","doi":"10.55981/jtl.2023.991","DOIUrl":"https://doi.org/10.55981/jtl.2023.991","url":null,"abstract":"ABSTRACT The Noman River, the main river that crosses Muaraenim Regency, South Sumatra Province, has been polluted by the liquid waste from the palm oil industry. This study aimed to create a filter device for treating the polluted water waste. This was achieved by designing a pump pressure setting on the filter device with various filter media arrangements. The method used was descriptive, presenting data in graphs and tables. The research and tool design to create a filter device for treating the polluted water waste process involved several stages: tool planning, manufacture and assembly, testing, observation, calculation, and laboratory analysis. The observed parameters included pump pressure, regulated using a pressure gauge to determine water quality before and after filtering. The parameters observed were turbidity, color, pH, suspended solids (TSS), BOD, COD, oil, and grease. The study results indicate that biosand filtration, using different pressures, can treat river water contaminated with waste from the palm oil industry and produce clean water. The initial color of the water before filtering was measured at 230 TCU. After filtering, the color value decreased at each pressure level. Pressure I had a color value of 164 TCU, higher than the 153 TCU obtained at pressure II. The BOD analysis showed a decrease from 2.43 mg/L to 1.86 mg/L at pressure I before filtering. After filtering, the initial total suspended solids (TSS) level was 39.7 mg/L, which decreased to 26.79 mg/L at pressure I and 26.40 mg/L at pressure II. The oil and fat content analysis before filtering showed a concentration of 700 µg/L, which decreased to 501 µg/L at pressure I and 516 µg/L at pressure II after filtering. ABSTRAK Sungai Noman, sebagai sungai utama, melewati Kabupaten Muaraenim, Propinsi Sumatera Selatan, telah mengalami pencemaran dari limbah cair industri kelapa sawit. Penelitian bertujuan untuk membuat alat penyaring dari limbah air tercemar dengan desain pengaturan tekanan pompa pada alat penyaring dengan berbagai susunan media filter. Metode deskriptif digunakan dalam penelitian ini dilengkapi dengan data tabel dan grafik. Tahap analisis serta penyediaan alat melewati beragam tahap seperti perencanaan alat, pembuatan dan perakitan alat, pengujian alat, pengamatan, perhitungan, dan analisis laboratorium. Parameter yang diamati yaitu tekanan pompa yang diatur melalui pressure gauge, untuk mendapatkan kualitas air sebelum dan sesudah penyaringan. Parameter yang diamati nilai kekeruhan, warna, pH, total suspended solid (TSS), chemical oxygen demand (COD), biological oxygen demand (BOD), minyak, serta lemak. Hasil penelitian menunjukkan bahwa biosand filtration dengan mengunakan tekanan yang berbeda mampu untuk mengolah air sungai dari limbah industri kelapa sawit menjadi air bersih. Warna air sebelum penyaringan sebesar 230 TCU dan setelah dilakukan penyaringan mengalami penurunan nilai warna pada masing-masing tekanan, tekanan I yaitu 164 TCU memiliki","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74830522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Karakteristik Distribusi, Analisis Sumber dan Penilaian Risiko Kesehatan dari Logam Berat di Lahan Pertanian Kota Batu, Jawa Timur","authors":"Cicik Oktasari Handayani, Sukaharjo, Hidayatuz Zu’amah, T. Dewi","doi":"10.55981/jtl.2023.291","DOIUrl":"https://doi.org/10.55981/jtl.2023.291","url":null,"abstract":"ABSTRACT\u0000The presence of heavy metals in agricultural land is a serious problem because heavy metals are toxic, persistent, and non-biodegradable, so they can have an impact on the environment and human health. This study aims to analyze the distribution of heavy metals in agricultural land in Batu City and analyze the public health risks associated with metal concentrations in agricultural land. This study used a survey method for taking soil samples with a total of 292 points for taking soil samples. The analyzes performed included spatial analysis, correlation analysis, multivariate analysis, cluster analysis, and health risk analysis. The results of this study indicate that the concentrations of heavy metals Cd, Co, and As in agricultural land in Batu City have exceeded the critical limits (3, 25, and 2 mg kg-1). The spatial distribution shows that Pb, Cd, Co, Cr, Ni, Cu, and Zn are almost evenly distributed in all classifications. Multivariate analysis showed the presence of natural and anthropogenic sources of heavy metals in agricultural land in Batu City. Health risk analysis shows that the weekly consumption in children is about 6 times the weekly consumption of adults.\u0000 \u0000ABSTRAK\u0000Keberadaan logam berat pada lahan pertanian merupakan masalah serius karena logam berat bersifat toksik, persisten dan non-biogedradable, sehingga dapat berdampak pada lingkungan dan kesehatan manusia. Penelitian ini bertujuan untuk menganalisis distribusi logam berat yang ada di lahan pertanian Kota Batu dan menganalisis risiko kesehatan masyarakat kaitannya dengan konsentrasi logam di lahan pertanian. Penelitian ini menggunakan metode survei pengambilan contoh tanah dengan jumlah titik lokasi pengambilan contoh tanah sebanyak 292 titik. Analisis yang dilakukan antara lain analisis spasial, analisis korelasi, analisis multivariat, cluster analysis, dan analisis risiko kesehatan. Hasil pada penelitian ini menunjukkan bahwa konsentrasi logam berat Cd, Co, dan As di lahan pertanian Kota Batu telah melebihi batas kritis (3, 25, dan 2 mg kg-1). Distribusi spasial menunjukkan logam Pb, Cd, Co, Cr, Ni, Cu, dan Zn sebaran pada semua klasifikasi hampir merata. Analisis multivariat menunjukkan adanya sumber alami dan sumber antropogenik pada logam berat di lahan pertanian Kota Batu. Analisis risiko kesehatan menunjukkan bahwa konsumsi mingguan pada anak-anak sekitar 6 kali lipat dari konsumsi mingguan orang dewasa.","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87124976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kajian Strategi Pengurangan Sampah dan Potensi Penerapan Ekonomi Sirkuler Pada Pengelolaan Sampah di Kabupaten Toba Sumatera Utara","authors":"Geby Otivriyanti, Regina Dea Tilottama, S. Meilani, Ayudia Mutiara Fani, Wahyu Purwanta","doi":"10.55981/jtl.2023.653","DOIUrl":"https://doi.org/10.55981/jtl.2023.653","url":null,"abstract":"ABSTRACT \u0000One of the factors for the competitiveness of tourist destinations is cleanliness, especially solid waste management. Toba Regency, as one of the buffer zones for the tourist destination of Lake Toba, cannot be separated from the challenge of reducing and handling solid waste generated by households, industry, and tourists. The amount of waste generated in Toba Regency in 2022 is 31,794 tons/year with a reduction rate of 0.94%, 37% dumped in landfill and 62% unmanaged. A simulation was carried out through data analysis from various planning documents, field observations, and interviews with stakeholders to get the best scenario for achieving the Jakstranas waste target in this study. Scenario 1 is by maximizing recycling through waste banks with a capacity of 10,074 tons/year or scenario 2 by composting food waste as much as 7,665 tons/year and recycling through waste banks at 2,317.75 tons/year. Scenario 1 is more likely to be implemented than scenario 2, considering the low compost market. If scenario 1 is implemented, the potential for creating a circular economy ranges from Rp. 19,654,374,000 to Rp. 22,354,206,000 annually.\u0000ABSTRAK \u0000Salah satu faktor daya saing destinasi wisata adalah kebersihan, khususnya pengelolaan sampah. Kabupaten Toba sebagai salah satu wilayah penyangga destinasi wisata Danau Toba tidak lepas dari tantangan untuk mengurangi dan menangani sampah yang dihasilkan baik oleh rumah tangga, industri,  maupun wisatawan.  Jumlah timbulan sampah Kabupaten Toba tahun 2022 sebanyak 31.794 ton/tahun dengan tingkat pengurangan sebesar 0,94%, ditimbun di Tempat Pemrosesan Akhir (TPA) 37% dan tidak terkelola 62%. Melalui analisis data dari berbagai dokumen perencanaan, pengamatan lapangan dan wawancara dengan pemangku kepentingan dilakukan simulasi untuk mendapatkan skenario terbaik dalam mencapai target Jakstranas persampahan dalam studi ini. Skenario 1 dengan memaksimalkan daur ulang melalui bank sampah dengan kapasitas 10.074 ton/tahun atau skenario 2 dengan melakukan pengomposan sampah sisa makanan sebanyak 7.665 ton/tahun dan daur ulang melalui bank sampah 2.317,75 ton/tahun. Skenario 1 lebih mungkin dilaksanakan dibanding skenario 2 mengingat rendahnya pasar kompos. Jika skenario 1 terlaksana maka potensi terwujudnya ekonomi sirkuler berkisar antara Rp. 19.654.374.000 hingga Rp. 22.354.206.000 per tahun","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"149 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72425747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Penjerapan Kation Fe3+, Pb2+ Menggunakan TBKA dan TBMTKA sebagai Bahan Penjerap: Kajian Variasi pH, Kapasitas Adsorpsi, dan Waktu Kontak","authors":"Busroni, C. Anwar, S. J. Santosa","doi":"10.55981/jtl.2023.242","DOIUrl":"https://doi.org/10.55981/jtl.2023.242","url":null,"abstract":"Adsorption capacity is the most important physicochemical process that occurs at solid-liquid and solid-gas interfaces. Adsorption has become the method of choice for removing, recovering, and recycling toxic heavy metals from wastewater. Efforts to reduce the presence of heavy metals in the affected environment caused and contaminated by heavy metals in waters. The aim of this study was to measure the adsorption capacity of Pb2+ ions and Fe3+ ions by applying 5,11,17,23-tetra-(t-butil)-25,26,27,28-tetra-Hidroksi-Kaliks[4]arena (TBKA) and 5,11,17,23-tetra-tert-butil-25-monohidroksi-26,27,28tribenzoiloksi kaliks[4]arena (TBMTKA) adsorbents with varying pH. Characterization of TBMTKA using FT-IR and 1H-NMR spectroscopy. TBKA and TBMTKA are used as adsorbents for Pb2+ ions and Fe3+ ions. The results showed that variations in pH affected the adsorption capacity by TBMTKA of Pb2+ and Fe3+ ions. The adsorption capacity of TBMTKA on Pb2+ ions with a large variation in pH was 6.32; 2.16; 4.14; 10.52; and 2.88 mg/g, while the adsorption capacity by TBKA for Fe3+ ions was 8.4; 13.32; 11.6; 14.18; and 6.66 mg/g.\u0000 \u0000Abstrak\u0000Kapasitas adsorpsi merupakan proses fisika-kimia terpenting yang terjadi pada zat padat-cair dan antarmuka padat-gas. Adsorpsi telah menjadi pilihan metode untuk menghilangkan, memulihkan, dan mendaur ulang racun logam berat dari air limbah. Upaya untuk mengurangi keberadaan logam berat di lingkungan terdampak yang ditimbulkan dan terkontaminasi logam berat di perairan. Penelitian bertujuan menentukan kapasitas adsorpsi ion Pb2+ dan ion Fe3+ dan mengaplikasikan bahan adsorben 5,11,17,23-tetra-(t-butil)-25,26,27,28-tetra-Hidroksi-Kaliks[4]arena (TBKA) dan 5,11,17,23-tetra-tert-butil-25-monohidroksi-26,27,28tribenzoiloksi kaliks[4]arena (TBMTKA) dengan berbagai variasi pH. Karakterisasi TBKA dan TBMTKA dengan spektroskopi FTIR dan 1H-NMR. masing masing sebagai bahan penjerap terhadap ion Pb2+ dan ion Fe3+. Hasil penelitian diperoleh bahwa variasi pH berpengaruh pada kapasitas adsorpsi ion Pb2+ dan Fe3+.  Kapasitas adsorpsi oleh TBMTKA terhadap ion Pb2+ dengan variasi pH besarnya adalah 6,32; 2,16; 4,14; 10,52; dan 2,88 mg/g, sedangkan kapasitas adsorpsi oleh TBKA terhadap ion Fe3+ adalah 8,4; 13,32; 11,6; 14,18; dan 6,66 mg/g.","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81747402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Support Vector Machine Analysis for Potential Hotspot Over Papua Island","authors":"Arie Vatresia, Rendra Regen, Ferzha Putra Utama, Rika Febrianti","doi":"10.55981/jtl.2023.238","DOIUrl":"https://doi.org/10.55981/jtl.2023.238","url":null,"abstract":"Pulau Papua merupakan wilayah yang sering mengalami kebakaran hutan atau lahan dan tercatat mengalami kebakaran luas dari tahun 2013 hingga 2018 mencapai 2.092,44 Ha, sedangkan penelitian yang masih sangat terbatas mengindikasikan kawasan yang mendesak untuk dipantau secara intensif untuk melindungi hutan yang tersisa di Papua. Salah satu indikator terjadinya kebakaran hutan atau lahan dapat diketahui dengan munculnya titik api di atas wilayah daratan. Sebagai upaya penanggulangan kebakaran hutan atau lahan, penelitian ini memanfaatkan data titik api (lintang, bujur, suhu kecerahan, daya pancar api, dan kepercayaan) untuk mengetahui daerah yang memiliki titik api dan mengklasifikasikan data titik api menjadi tiga potensi kebakaran (risiko rendah, risiko sedang, dan risiko tinggi). Penelitian ini berhasil mengimplementasikan metode Support Vector Machine (SVM) untuk mengklasifikasikan data hotspot. Hasil penelitian ini menunjukkan bahwa metode SVM dapat digunakan dalam proses klasifikasi data titik api di Pulau Papua selama tiga tahun (2019, 2020, dan 2021) dengan hasil yang didapat adalah potensi kebakaran. Terdapat 2.214 data hotspot yang termasuk dalam kategori risiko rendah; 15.412 titik api dengan risiko sedang; dan 4.479 titik api dengan potensi risiko tinggi. Selain itu, penelitian ini juga menemukan bahwa jumlah kejadian hotspot tertinggi terjadi pada bulan Agustus dan terendah pada bulan Januari untuk setiap tahun analisis. Penelitian ini memetakan posisi spasial kejadian titik api berdasarkan tingkat risiko di pulau Papua yang menunjukkan bahwa titik api paling banyak terjadi di Papua bagian Selatan (Kota Merauke, Kota Tolikara, dan Kota Puncak Jaya). Terakhir, penelitian ini menghasilkan nilai kebenaran 91,475% untuk teknik pengujian Polynomial Kernel dan 93,667% pada Confusion Matrix sebagai proses validasi.\u0000Abstract\u0000Papua Island is an area that often experiences forest or land fires and is noted to have extensive fires from 2013 to 2018 reaching 2,092.44 Ha, while there is still very limited research indicating the urgent area to be monitored intensively to protect the forest left in this area. One indicator of the occurrence of forest or land fires can be known by the appearance of hotspots over the land area. As an effort to overcome forest or land fires, this study utilizes hotspot data (latitude, longitude, brightness temperature, fire radiative power,  and confidence) to find out the area that has a hotspot and classifying hotspot data into three potential fires (low risk, medium risk, and high risk). This study succeeded to implement the Support Vector Machine (SVM) method for classifying hotspot data. The results of this study indicate that the SVM method can be used in the process of classifying hotspot data on Papua Island for three years (2019, 2020, and 2021) with the results obtained are being potential fires. There are 2,214 hotspot data included in the category of low risk; 15,412 hotspots in medium risk; and 4,479 fire ","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83311683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uji Kinerja Sistem Elektrokoagulasi terhadap Kobalt, Nikel, dan Mangan","authors":"Oman Sulaeman, Karina Anggraeni, Muhammad Haqqiyuddin Robbani, Taty Hernaningsih","doi":"10.55981/jtl.2023.243","DOIUrl":"https://doi.org/10.55981/jtl.2023.243","url":null,"abstract":"The increasing demand for batteries for battery-based electric vehicles has caused the battery industry to grow rapidly. Batteries generally contain the heavy metals lithium, nickel, cobalt, and manganese. In solving the problem of battery’s heavy metal waste, wastewater treatment technologies is needed. One of the technologies that can be used is electrocoagulation technology. In this research, the performance test of electrocoagulation technology for the treatment of artificial wastewater containing cobalt, nickel, and manganese has been carried out. To determine the removal efficiency of the electrocoagulation system, 50 samples were collected from the processed products from each unit in the system. The results of the performance test of the electrocoagulation system showed that there was an effect of current on the pH value of artificial wastewater which increased by 11.43, 9.59, and 10.67% at currents of 10, 40, and 70 A; time affects the removal of cobalt, nickel and manganese with removal efficiencies reaching 93, 93, and 79%; and current has an effect on the removal of cobalt, nickel, and manganese in the electrocoagulation system as seen in the efficiency of removal of cobalt reaching 79, 90, and 95%; nickel removal efficiency reached 73, 85, and 97% while manganese removal efficiency was 76, 81, and 91% respectively at the same current of 10, 40, and 70 A.\u0000 \u0000ABSTRAK\u0000Peningkatan kebutuhan baterai untuk kendaraan listrik yang berbasis baterai menyebabkan industri baterai berkembang pesat. Baterai umumnya mengandung logam berat lithium, nikel, kobalt, dan mangan. Dalam memecahkan masalah limbah logam berat baterai ini diperlukan teknologi pengolahan air limbah. Salah satu teknologi yang bisa digunakan adalah dengan teknologi elektrokoagulasi. Dalam penelitian ini telah dilaksanakan uji kinerja perangkat teknologi elektrokoagulasi untuk pengolahan air limbah artifisial yang mengandung kobalt, nikel, dan mangan. Untuk mengetahui efisiensi penyisihan sistem elektrokoagulasi maka dilakukan pengumpulan 50 sampel dari hasil olahan dari masing-masing unit dalam sistem tersebut. Hasil uji kinerja sistem elektrokoagulasi menunjukkan adanya pengaruh arus terhadap nilai pH air limbah artifisial dimana mengalami kenaikan sebesar 11,43, 9,59, dan 10,67% pada arus 10, 40, dan 70 A; waktu berpengaruh terhadap proses penyisihan logam kobalt, nikel, dan mangan dengan efisiensi penyisihan mencapai 93%, 93% dan 79%; dan arus berpengaruh terhadap penyisihan kobalt, nikel, dan mangan pada sistem elektrokoagulasi yang  terlihat pada efisiensi penyisihan kobalt mencapai 79, 90, dan 95%; efisiensi penyisihan nikel mencapai 73, 85, dan 97% sedangkan efisiensi penyisihan mangan sebesar 76, 81,dan 91% masing-masing pada arus yang sama 10, 40, dan 70 A.\u0000 \u0000 ","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85298026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Binoculars Modification for Measurement of Smoke Density at Fixed Sources","authors":"N. Prasetyawati, S. Sudaryanto","doi":"10.55981/jtl.2023.244","DOIUrl":"https://doi.org/10.55981/jtl.2023.244","url":null,"abstract":"Perubahan kualitas udara yang melebihi nilai ambang batas pada berbagai parameter, baik gas, partikel maupun gangguan akan menyebabkan menurunnya fungsi organ makhluk hidup bahkan dapat menyebabkan kematian. Penggunaan alat ukur kepekatan asap belum familiar untuk diaplikasikan pada pengukuran lingkungan fisik ketika melakukan inspeksi sanitasi di industri. Kondisi ini terjadi karena harga alat yang mahal dan kurangnya sosialisasi untuk menggunakan alat tersebut. Padahal kepekatan asap menjadi salah satu indikator penting pencemaran udara di suatu lingkungan, karena nilai ambang batas yang terlampaui. Tujuan penelitian untuk mengetahui kinerja teropong modifikasi yang digunakan untuk pengukuran kepekatan asap pada sumber tidak bergerak. Teropong ini terbuat dari bahan yang kuat dan mudah untuk dibawa ke lapangan. Pada bagian ujung teropong terdapat kaca yang telah dilengkapi skala Ringelmann untuk membandingkan asap yang diamati dengan standar. Hasil menunjukkan peringkat rata-rata parameter bilangan Ringelmann dan opasitas pada kelompok I dan II memiliki nilai tertinggi. Sig α secara berturut-turut menunjukkan hasil 0,903 pada bilangan Ringelmann, 0,601 pada transmisi cahaya melalui asap dan 0,903 pada level opasitas. Hasil tersebut memiliki arti bahwa tidak ada beda hasil uji efektivitas pada kelompok teropong modifikasi dan opacity meter. Kesimpulan menunjukkan nilai Sig α secara berturut-turut antara kelompok A dan B dengan hasil 0,903 pada bilangan Ringelmann, 0,601 pada transmisi cahaya melalui asap dan 0,903 pada level opasitas. Hasil tersebut memiliki arti bahwa tidak ada beda hasil uji efektivitas pada kelompok teropong modifikasi dan opacity meter. Alat yang dikembangkan memiliki kecenderungan tren yang sama dengan opacity meter yang ada dan digunakan saat ini.\u0000 \u0000ABSTRACT\u0000Changes in air quality that exceed the threshold value on various parameters, gases, particles, and disturbances will cause a decrease in the function of living organisms and even cause death. The use of smoke density gauges has yet to be familiar with measuring the physical environment when conducting sanitation inspections in the industry. This condition occurs because the price of the tool is expensive and the lack of socialization to use the tool. The density of smoke is one of the essential indicators of air pollution in an environment because the threshold value is exceeded. The study aimed to determine the performance of modified binoculars used for measuring smoke density at immovable sources. These binoculars are made of solid materials and are easy to carry into the field. At the end of the binoculars, there is a glass equipped with a Ringelmann scale to compare the observed smoke with the standard. The results show the average rank of Ringelmann's number and opacity parameters in groups I and II has the highest value. Sig respectively showed the results of 0.903 on the Ringelmann number, 0.601 on the transmission of light through smoke, and 0.903 on the opac","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"113 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75841151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}