Jurnal Sains Teknologi Lingkungan最新文献

{"title":"Adaptation of Coastal and Small Island Communities on the Assessment and Application of Clean Water Technology Provision","authors":"R. A. Pratama, Muhammad Hanif","doi":"10.29122/jtl.v23i1.5062","DOIUrl":"https://doi.org/10.29122/jtl.v23i1.5062","url":null,"abstract":"ABSTRAKPemenuhan akses air bersih yang laik bagi masyarakat merupakan isu ke-6 dari 17 isu tujuan pembangunan berkelanjutan (TPB). Tujuan berkelanjutan ini bertumpu pada pilar ekonomi, sosial dan lingkungan yang diperkuat oleh peran teknologi. Kawasan pesisir dan pulau-pulau kecil memiliki tantangan yang relatif lebih besar ditengah isu perubahan iklim dalam memenuhi ketersediaan air bersih. Penelitian ini bertujuan untuk mengembangkan model aplikasi teknologi tepat guna melalui analisis adaptasi masyarakat dalam pemenuhan akses air bersih. Masyarakat desa Mare Kofo dan Mare Gam di Pulau Mare, Provinsi Maluku Utara yang terdiri dari ketua RT/RW dan pemangku kepentingan setempat sebagai object dalam riset ini. Metode kualitatif dan kuantitatif digunakan untuk menginvestigasi tingkat adaptasi masyarakat. Analisis data dilakukan melalui tahap pengumpulan data sekunder skala kota, pengamatan lapangan dan wawancara.  Hasil penelitian menunjukkan bahwa masyarakat Pulau Mare telah melakukan adaptasi dalam memenuhi kebutuhan air bersih dengan menggunakan sumur bor komunal yang dikelola oleh pemerintah desa setempat dan teknologi pemanenan air hujan. Diperoleh pula bahwa potensi maksimal hasil tangkapan air hujan pada hunian terkecil dengan luasan atap rumah 42 m2 adalah sebesar 56.915 liter per tahun, atau setara dengan 65% dari kebutuhan air bersih domestik.Kata Kunci: Air Bersih, Masyarakat Pesisir, Pengkajian Teknologi, Adaptasi, Pulau-pulau KecilABSTRACTProviding access to clean water for the community is the 6th goal of 17 (seventeen) sustainable development goals (SDGs). The SDGs are based on economic, social, and environmental pillars that are strengthened by the role of technology. Coastal areas and small islands have relatively more significant challenges amid climate change issues in meeting the availability of clean water. This research aims to develop an appropriate technology application model through analyses on community adaptation in fulfilling access to clean water. The village community of Mare Kofo and Mare Gam, Mare Island, North Maluku Province, consisting of local wards and local stakeholders as the research objects. Qualitative and quantitative methods were applied to investigate the level of community adaptation. Data analysis was carried out through the stages of collecting secondary city-scale data, field observations, and interviews. This study indicate that the people of Mare Island have adapted to meet their clean water needs by using communal drilled wells managed by the local village government and rainwater harvesting technology. It was also found that the maximum potential for rainwater catchment in the smallest dwelling with a roof area of 42 m2 is 56,915 liters per year, or equivalent to 65% of domestic clean water needsKeywords: Clean Water, Coastal Community, Technology Assessment, Adaptation, Small Islands","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90033629","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":"Laju Degradasi Beberapa Jenis Plastik Menggunakan Ulat Hongkong (Tenebrio molitor L.) dan Ulat Jerman (Zophobas atratus F.)","authors":"Ichsan Luqmana Indra Putra, Nila MA’RUFAH","doi":"10.29122/jtl.v23i1.4735","DOIUrl":"https://doi.org/10.29122/jtl.v23i1.4735","url":null,"abstract":"ABSTRACT\u0000Excessive consumption of plastic material causes a higher amount of plastic waste, which causes environmental pollution. This study aims to determine the degradation rate of several types of plastics using Tenebrio molitor and Zophobas atratus in the laboratory. The research was conducted from September 2020–March 2021 at the Ecology and Systematic Laboratory, Faculty of Applied Science and Technology, Ahmad Dahlan University, Yogyakarta. The study used 10 of the 6th instar caterpillars with five repetitions. The treatment was used three types of plastic samples, namely: Polypropylene (PP), High-Density Polyethylene (HDPE) and Low-Density Polyethylene (LDPE), each of which was given as much as 1 gram. The control treatment was given 1 gram of bran feed. Each caterpillar was measured for its body weight and length every three days and carried out for 30 days. The data results were analyzed statistically inferential at the 5% confidence level. The parameters observed were the increase in length and weight of T. molitor and Z. atratus, degradation rate, and the Waste Reduction Index (WRI). The highest average length value for larvae was T. molitor HDPE plastic (1.83 cm), and the lowest was LDPE (1.41 cm), while body weight measurements showed constant weight values (0.07 gr). Size of the length of larvae Z. atratus showed the highest average body length value for LDPE plastic (3.70 cm) and the lowest in control (3.46 cm), while the weight gain showed an average range of 0.41–0.43 grams. The counting of values of degradation rate and WRI obtained the highest to lowest results, respectively, namely, control (0.075), PP (0.011), LDPE (0.009), and HDPE (0.007) in T. molitor. While the values of degradation rate and WRI in Z. atratus were control (0.038), PP (0.032), LDPE (0.014), and HDPE (0.004). For the WRI, in T. molitor, the highest was control (2.51%), and lowest was HDPE (0.22%), while in Z. atratus, the highest was control (1.26%), and lowest was HDPE (0.12%).\u0000Keywords: Degradation, HDPE, LDPE, Tenebrio molitor, Zophobas atratus\u0000ABSTRAK\u0000Konsumsi berlebih terhadap bahan plastik mengakibatkan jumlah sampah plastik semakin tinggi sehingga menyebabkan pencemaran lingkungan. Oleh karena itu, perlu adanya sebuah upaya untuk mengurangi sampah plastik secara alami. Penelitian ini bertujuan mengetahui laju degradasi beberapa jenis plastik menggunakan ulat hongkong (Tenebrio molitor L.) dan ulat jerman (Zophobas atratus F.) di Laboratorium. Penelitian dilaksanakan September 2020–Maret 2021 di Laboratorium Ekologi dan Sistematik, Fakultas Sains dan Teknologi Terapan, Universitas Ahmad Dahlan, Yogyakarta. Plastik yang digunakan yaitu Polypropylene (PP), High-Density Polyethylene (HDPE), dan Low-Density Polyethylene (LDPE) masing-masing sebanyak 1 gram. Perlakuan kontrol diberikan pakan dedak sebanyak 1 gram. Setiap ulat diukur bobot dan panjang tubuhnya setiap 3 hari sekali selama 30 hari. Hasil data yang diperoleh dianalisis secara statistik infere","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"101 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79844847","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":"Analisis Potensi Pencemaran Air Tanah Bebas di Lereng Kaki Koluvial dan Dataran Aluvial Daerah Aliran Sungai Pesing Menggunakan Integrasi Metode GOD dan SIG Berbasis Web","authors":"Sadewa Purba Sejati, Aditya Saputra","doi":"10.29122/jtl.v23i1.4949","DOIUrl":"https://doi.org/10.29122/jtl.v23i1.4949","url":null,"abstract":"ABSTRACT\u0000Agricultural, livestock, and domestic activities in the alluvial plains and the colluvial footslopes of the Pesing watershed have the potential to reduce groundwater quality in an unconfined aquifer. Environmental characteristics need to be identified spatially to determine the potential for groundwater contamination. The latest mapping technology also needs to be identified to determine its ability to disseminate information on potential groundwater pollution. The research was conducted to determine the potential for groundwater pollution and to identify the capability of a web-based GIS as a medium for disseminating geospatial information. Potential groundwater contamination was identified using the GOD method. The variables used include the type of aquifer, aquifer lithology, and groundwater depth. Variables of aquifer type and aquifer lithology are known through secondary data, namely drilling data, geological data, and literature studies. Variable groundwater depth is known through field surveys. Sampling method used is systematic random sampling. Each variable is classified and visualized in the form of a thematic map. Three variables were analyzed by the overlay method. Based on the results of the analysis, it is known that in the rainy season, the research area is classified into three classes of potential for groundwater pollution, namely extreme potential with a percentage of 27% area, high potential with a rate of 71%, and medium potential with a percentage of 2%. The potential for groundwater contamination during the dry season is classified into two classes: high potential with an area of 43% and medium potential with a percentage of 57%. Temporal dynamics of the potential for groundwater pollution are caused by a variable sensitive to seasonal changes, namely the depth of groundwater. The land uses that have the most influence on the potential for groundwater contamination are rice fields and livestock manure disposal. Web-based GIS can be used as a medium for disseminating information on potential groundwater pollution. The program can be appropriately operated on a variety of electronic devices. Web-based GIS is equipped with a variety of features that can be used interactively for fundamental to applied analysis.\u0000Keywords: groundwater, unconfined aquifer, GOD, GIS, web\u0000 \u0000ABSTRAK\u0000Aktivitas pertanian, peternakan, dan domestik di dataran aluvial dan dataran kaki koluvial DAS Pesing berpotensi menurunkan kualitas air tanah bebas. Karakteristik lingkungan perlu diidentifikasi secara spasial untuk mengetahui potensi pencemaran air tanah. Teknologi pemetaan terkini juga perlu diidentifikasi untuk mengetahui kemampuannya dalam mendiseminasi informasi potensi pencemaran air tanah. Penelitian dilakukan untuk mengetahui potensi pencemaran air tanah dan mengidentifikasi kemampuan sistem informasi geografis berbasis (SIG) web sebagai media diseminasi informasi geospasial. Potensi pencemaran air tanah diidentifikasi menggunakan metode","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80843132","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 Bahan Bakar Minyak dari Limbah Plastik dan Aplikasinya pada Motor Bensin Empat Langkah","authors":"amiral azis, Irfan Susanto","doi":"10.29122/jtl.v23i1.4752","DOIUrl":"https://doi.org/10.29122/jtl.v23i1.4752","url":null,"abstract":"ABSTRACT\u0000Plastic is one of the materials most widely used by the community, especially in the household sector. The use of plastics that are not in accordance with health and environmental standards will cause various health problems and pollution to the environment Plastic can be converted by pyrolysis process to produce liquid fuel as an alternative fuel for Internal Combustion Engine (ICE). The purpose of this research was to compare the performance parameters of the four-stroke gasoline engine single cylinder using the mixture of plastic oil (MIPLAS) as testing fuels and 2 (two) Pertamina’s products, ie. Pertalite which has RON (Research Octane Number) 90 and Pertamax which has RON (Research Octane Number) 92 as comparative fuels. The first phase of this research used a dynamometer machine with testing using 100% each Pertalite (RON 90), Pertamax (RON 92) and MIPLAS. The engine performance parameters such as Brake Power, Specific Fuel Consumption, Brake Mean Effective Pressure and Engine Speed were investigated. Then the second phase of testing using the mixture of plastic oil (MIPLAS) and Pertalite (RON 90), Pertamax (RON 92) with a certain percentage as the fuel. From the research results for all types of fuels and fuel mixtures, the minimum specific fuel consumption (SFC) does not occur at the maximum Brake Power (BP) generated., this means that the Internal Combustion Engine never occurs in a condition of maximum power generated with minimum specific fuel consumption or vice versa. It can be concluded that the design and operation of an ICE is a trade-off between the maximum Brake Power (BP) generated and the minimum Specific Fuel Consumption (SFC).\u0000Keywords: gasoline engine, pertamax, pertalite, plastic oil, performance parameter\u0000 \u0000ABSTRAK\u0000Plastik merupakan salah satu bahan yang paling banyak digunakan oleh masyarakat, khususnya dalam sektor rumah tangga. Penggunaan plastik yang tidak sesuai standar kesehatan dan lingkungan hidup akan menimbulkan berbagai gangguan kesehatan dan pencemaran terhadap lingkungan. Plastik dapat diubah melalui proses pirolisis untuk menghasilkan bahan bakar cair sebagai bahan bakar alternatif motor bakar bensin (Internal Combustion Engine). Tujuan dari penelitian ini adalah untuk membandingkan parameter unjuk kerja motor bakar bensin empat langkah silinder tunggal dengan bahan bakar campuran minyak plastik (MIPLAS) dan 2 (dua) produk Pertamina yaitu. Pertalite yang memiliki RON (Research Octane Number) 90 dan Pertamax yang memiliki RON (Research Octane Number) 92 sebagai bahan bakar pembanding Tahap pertama penelitian ini menggunakan mesin dinamometer dengan pengujian menggunakan 100% Pertalite (RON 90), 100 % Pertamax (RON 92) dan 100 % MIPLAS. Parameter kinerja mesin seperti Daya Efektif (Brake Power) Konsumsi Bahan Bakar Spesifik (Specific Fuel Consumption), Tekanan Efektif Rata-rata (Brake Mean Effective Pressure) dan putaran mesin diinvestigasi. Kemudian pengujian tahap kedua menggunakan campuran minyak p","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82988261","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":"Potensi Reduksi Gas Rumah Kaca di TPA Kawatuna melalui Proyek Pemulihan Gas Metana","authors":"N. A. R. NOCH, Pini Wijayanti","doi":"10.29122/jtl.v23i1.5050","DOIUrl":"https://doi.org/10.29122/jtl.v23i1.5050","url":null,"abstract":"ABSTRACT\u0000The Palu City Government plans to reactivate the biogas power plant (PLTBg) project in Kawatuna landfill, which was operated in 2013. Both economic and environmental benefits of the project are important for decision makers. The environmental benefit include the potential reduction of greenhouse gases (GHGs) emissions by the project. The economic benefits are important to estimate as the financial attractiveness of the project, which include the electricity generated and revenue from Certified Emission Reduction (CER). This study aims (1) to estimate the potential GHGs emissions produced by the Kawatuna landfill before PLTBg project, (2) to estimate the potential GHGs emissions reduction due to the project, (3) to calculate the potential CER that can be obtained from the project. This study employs Clean Development mechanism (CDM) AMS-III.G method to estimate the potential GHGs reduction and a simple quantitative analysis to calculate the potential CER of the project. The results show that based on the BAU Scenario in 2021, the estimated baseline GHGs emissions is 16.148,74 t CO2e, the potential GHGs reduction after the project would reach 61,40% of the total GHGs emissions generated and the range of potential CER would be from 28.595.318 IDR to 72.329.334 IDR. From 2021 to 2030, total present value of CER would reach 563.358.389 IDR.\u0000Keywords: CDM, CER, GHG Emissions, Kawatuna, PLTBg\u0000 \u0000ABSTRAK\u0000Pemerintah Kota Palu berencana menghidupkan kembali proyek pembangkit listrik tenaga biogas (PLTBg) di TPA Kawatuna yang sempat beroperasi pada tahun 2013. Informasi mengenai manfaat yang akan diperoleh dari sudut pandang ekonomi dan lingkungan adalah penting bagi pengambil keputusan. Salah satu manfaat lingkungan yaitu potensi reduksi emisi gas rumah kaca (GRK) oleh proyek PLTBg. Manfaat ekonomi penting untuk diestimasi sebagai daya tarik finansial dari proyek, di antaranya berasal dari nilai potensi energi listrik yang dihasilkan dan penerimaan proyek dari Certified Emission Reduction (CER). Tujuan penelitian ini adalah (1) mengestimasi potensi emisi GRK yang dihasilkan oleh TPA Kawatuna sebelum implementasi proyek pemulihan gas metana, (2) mengestimasi potensi reduksi GRK dari proyek tersebut, (3) menghitung potensi nilai CER yang dapat dihasilkan dari proyek tersebut. Penelitian ini menggunakan metode CDM AMS-III.G untuk mengestimasi potensi reduksi GRK dan menggunakan kuantitatif sederhana untuk   mengestimasi nilai CER proyek. Hasil penelitian menunjukkan melalui Skenario BAU pada tahun 2021, potensi emisi GRK sebelum adanya proyek adalah 16,148,74 t CO2e dan potensi reduksi GRK setelah adanya proyek mencapai 61,40% dari total emisi yang dihasilkan. Potensi penerimaan CER proyek pada tahun 2021 berkisar antara Rp 28.595.318 hingga Rp 72.329.334 dan total present value penerimaan CER pada tahun 2021-2030 mencapai Rp 563.358.389.\u0000Kata kunci: CDM, CER, Emisi GRK, Kawatuna, PLTBg","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"66 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83320862","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":"Analysis of Potential GHG Emissions from Tofu Industry and Its Mitigation in Indonesia","authors":"A. H. I. Putri, J. Waluyo","doi":"10.29122/jtl.v23i1.4963","DOIUrl":"https://doi.org/10.29122/jtl.v23i1.4963","url":null,"abstract":"ABSTRAK\u0000Tahu merupakan salah satu sumber protein dengan permintaan yang tinggi di Indonesia. Saat ini  beberapa industri tahu telah menggunakan peralatan-peralatan berbahan dasar stainless steel. Kondisi ini menunjukkan keseriusan industri tahu untuk membuat produk tahu yang higienis. Namun, produk tahu yang higienis saja tidaklah cukup. Persaingan pasar global menuntut sebuah produk tidak hanya memperhatikan kualitas, namun juga menjadi produk yang ramah lingkungan dengan ditandai oleh nilai emisi CO2 yang rendah. Sejalan dengan kondisi tersebut, maka studi terkait dengan perhitungan emisi CO2 yang dihasilkan oleh sebuah produk menjadi hal yang perlu diutamakan. Pada studi ini dilakukan penelitian estimasi emisi CO2 yang dihasilkan dari 1 kg tahu dengan menggunakan metode LCA dan menerapkan batasan sistem from cradle to gate, yakni penghitungan emisi Gas Rumah Kaca (GRK) dihitung dari penanaman kedelai hingga menjadi 1 kg produk tahu. Studi kasus dilakukan pada 3 industri tahu dan diketahui bahwa emisi GRK yang dihasilkan per 1 kg tahu berada pada rentang 0,35–0,5 kg CO2 eq. Faktor utama penyumbang emisi CO2 berasal dari air limbah hasil dari proses produksi, diikuti  budidaya kedelai dan transportasi bahan baku kedelai dari perkebunan menuju ke industri. Hasil penelitian ini memberikan rekomendasi kepada industri tahu untuk mengurangi emisi CO2 yang dihasilkan dari limbah cair proses produksi tahu. Alternatif pengolahan limbah cair yakni dengan mengolah air limbah menggunakan sistem anaerobik guna menghasilkan biogas yang digunakan untuk kebutuhan memasak.\u0000Kata kunci: Kedelai, Tahu, LCA, Emisi GRK, Limbah cair\u0000 \u0000ABSTRACT\u0000Tofu is one of the protein sources with high demand in Indonesia. Currently, several tofu industries have used stainless steel-based equipment. This condition shows the seriousness of the tofu industry to make hygienic tofu products. However, hygienic tofu products are not enough. The global market competition required the products to take notice not only of their quality but also of environmentally-friendly products characterized by a low value of CO2 emission. In accordance with the condition, studies related to calculating CO2 emissions resulting from a product are necessary. In this study, we conducted research on the estimation of CO2 emissions resulting from 1 kg of tofu using the LCA method and applying the system boundary from cradle to gate, in which greenhouse gas (GHG) emissions were calculated from soybeans plantation to 1 kg of tofu products. Case studies were conducted on three tofu industries, and it was found that the GHG emissions produced per 1 kg of tofu were in the range of 0.35–0.5 kg CO2 eq. Three main factors contribute to CO2 emissions, i.e., wastewater, soybean cultivation, and soybean transportation from plantation area to industry. Therefore, this study recommends the tofu industry reduce CO2 emissions resulting from wastewater. The alternative is to treat wastewater using an anaerobic system to produ","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78416710","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":"Wetlands Delineation with Various Land Covers Using SAR Sentinel-1A Surface Backscatter Ratio","authors":"Budi Heru Santosa, F. Marpaung","doi":"10.29122/jtl.v23i1.5089","DOIUrl":"https://doi.org/10.29122/jtl.v23i1.5089","url":null,"abstract":"ABSTRAK\u0000Wilayah Kabupaten Ogan Komering Ilir (OKI) yang didominasi lahan basah memerlukan perencanaan tata guna lahan yang tepat untuk mendukung program kesejahteraan dan pelestarian lingkungan. Program tersebut perlu disusun berdasarkan data lahan basah yang tepat dalam penetapan tata guna lahan. Artikel ini mengeksplorasi pemanfaatan data satelit Synthetic Aperture Radar (SAR) Sentinel-1A untuk mengidentifikasi area lahan basah dengan berbagai tutupan lahan untuk menyediakan peta lahan basah skala menengah secara cepat. Peta kelembaban tanah diambil dari platform SEPAL untuk memantau pola kelembaban tanah sepanjang 2015–2017. Profil hamburan balik polarisasi VV (?VV) dan polarisasi VH (?VH) dianalisis untuk data sentinel-1 dari tahun 2015 hingga 2018. Rasio antara nilai VV dan VH (?VV/?VH) serta tekstur VV dan VH digunakan sebagai acuan untuk menentukan lahan basah; ditentukan pada analisis eksperimental profil kelembaban tanah, konstanta dielektrik, dan nilai koefisien hamburan balik dari penelitian lain. Rasio VH/?VV yang rendah (berkisar antara 1,3 dan 1,6) terletak di bagian utara Kabupaten OKI dan sebagian besar ditutupi oleh tanaman akasia. Estimasi ini sejalan dengan peta kesatuan hidrologis gambut dan data validasi berdasarkan ground check lapangan. Secara keseluruhan, rasio ?VH/?VV tahunan bernilai relatif sama, dengan nilai variasi yang kecil. Studi ini menemukan kemampuan Sentinel-1A untuk keperluan klasifikasi tipe vegetasi lahan basah yang akurat, terutama lahan basah bervegetasi herba atau semak, tetapi tidak untuk lahan basah bervegetasi tinggi.\u0000Kata kunci : SAR Sentinel-1A, lahan basah, backscatter, program konservasi, keberlanjutan\u0000ABSTRACT\u0000Ogan Komering Ilir (OKI) Regency area, dominated by wetlands, requires appropriate land use planning to support welfare and environmental conservation programs. This article explores the utilization of Synthetic Aperture Radar (SAR) Sentinel-1A satellite data to identify wetland areas with various land covers to provide a medium scale wetland map quickly. The soil moisture maps were captured from the SEPAL platform to monitor soil moisture patterns throughout 2015–2017. The backscattering profiles of VV (?VV) polarization and VH polarization (?VH) were then analyzed for data sentinel-1A from 2015 to 2018. The ratio between VV and VH (?VV/?VH) values and textures of VV and VH is used as a reference to determine the wetland area; determined on an experimental analysis of soil moisture profile, dielectric constants, and backscattering coefficient values from other studies. The low ?VH/?VV ratio (ranges between 1.3 and 1.6) is located in the northern OKI regency and is mainly covered by acacia plantations. These estimations align with the Peat Hydrology Unit maps and ground check as validation data. Overall, the ?VH/?VV ratio is relatively the same yearly, with a small variation value. This study found the capability of Sentinel-1A for the accurate classification of wetland vegetation types, pri","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78827641","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":"Pemantauan Kualitas Udara Ambien di Komplek Universitas Pertamina pada Masa Pandemi COVID-19","authors":"Nurulbaiti Listyendah Zahra, Fikri Abdurrahman Haidar, Yasmin Hanum, Delafany Ramadhanti, Rizki Ramadhan, A. Rahman, Fatimah Dinan Qonitan, Betanti Ridhosari","doi":"10.29122/jtl.v23i1.4597","DOIUrl":"https://doi.org/10.29122/jtl.v23i1.4597","url":null,"abstract":"ABSTRACT\u0000The increasing number of vehicles in Jakarta has the potential to increase air pollution, especially on protocol roads. However, during the COVID-19 pandemic, large-scale social restrictions (PSBB) were imposed in Jakarta, which made work activities and learning processes carried out online. These social restrictions cause a decrease in vehicle activity, including at Universitas Pertamina Areas in Jakarta. The decreasing number of this activity certainly affects the ambient air quality. Therefore, ambient air quality measurements were conducted at Universitas Pertamina Areas during the COVID-19 pandemic. The parameters observed included SO2, NO2, O3, TSP, PM2.5, and NH3. This research showed that during the COVID-19 pandemic, the measured air parameters, namely SO2, NO2, O3, TSP, and PM2.5, met the quality standards based on the Government Regulation of the Republic of Indonesia Number 41 of 1999 concerning air pollution control. Also, NH3 parameters had met the Decree Minister of Environment Number: KEP-50/MENLH/11/1996 concerning odor level standards.\u0000Keywords: COVID-19 Pandemic, Gas, South Jakarta, Air Quality, Particulate\u0000 \u0000ABSTRAK\u0000Peningkatan jumlah kendaraan bermotor di Kota Jakarta berpotensi dalam meningkatkan pencemaranudara, terutama di jalan-jalan protokol. Namun, selama pandemi COVID-19 diberlakukan pembatasan sosial berskala besar (PSBB) di Kota Jakarta yang membuat kegiatan kerja dan proses pembelajaran dilakukan secara daring sehingga aktivitas kendaraan bermotor mengalami penurunan, termasuk di Komplek Universitas Pertamina Jakarta. Penurunan aktivitas ini berpengaruh terhadap kualitas udara ambien. Oleh karena itu dilakukan pengukuran terhadap kualitas udara ambien di Universitas Pertamina selama pandemi COVID-19. Parameter yang diamati meliputi SO2, NO2, O3, TSP, PM2,5, dan NH3. Dari hasil pemantauan dapat disimpulkan bahwa pada saat pandemi, parameter udara yang diukur, yaitu SO2, NO2, O3, TSP, dan PM2,5 memenuhi baku mutu berdasarkan Peraturan Pemerintah Republik Indonesia Nomor 41 Tahun 1999 tentang pengendalian pencemaran udara dan parameter NH3 telah memenuhi Keputusan Menteri Lingkungan Hidup Nomor: KEP50/MENLH/11/1996 tentang baku tingkat kebauan.\u0000Kata kunci: Pandemi COVID-19, Gas, Jakarta Selatan, Kualitas Udara, Partikulat\u0000 \u0000 ","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89170653","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":"Pengaruh Variasi pH pada Penjerapan Kation Fe3+, Pb2+ Menggunakan Senyawa 5,11,17,23-tetra-(t-butil)-25,26,27,28-tetra-Hidroksi-Kaliks[4]arena sebagai Adsorben: Kajian Kapasitas Adsorpsi","authors":"Busroni Busroni, C. Anwar, Dwi Siswanta","doi":"10.29122/jtl.v23i1.4962","DOIUrl":"https://doi.org/10.29122/jtl.v23i1.4962","url":null,"abstract":"ABSTRACT\u0000Efforts to reduce the concentration of heavy metal cations in the environment have become a matter of concern due to their potential impact and widespread pollution in the waters. This study aims to examine the adsorption capacity of Pb(II) and Fe(III) cations using 5,11,17,23-tetra-(t-butyl)-25,26,27,28-tetra-hydroxycalix[4]arene compounds (TBKA) with various pH variations. The synthesis product of TBKA was characterized using FTIR and 1H-NMR spectroscopy. TBKA has functioned as an adsorbent or pollutant absorbent for Pb(II) and Fe(III) cation with an immersion system. The results showed that variations in pH affect the adsorption capacity of the adsorbent TBKA on Pb(II) and Fe(III) cations. The adsorption capacity of the adsorbent of TBKA on Pb(II) cations at pH 2; 3; 4; 5; and 6 was 6.32; 2.16; 4.14; 10.52; and 2.88 mg/g, respectively, while the adsorption capacity of TBKA on Fe(III) cations at pH 1.5; 3; 4; 5 and 6 was 8.4; 13.32; 11.6; 14.18; and 6.66 mg/g, respectively.\u0000Keywords: TBCA, Batch system, pH variations, Adsorption capacity\u0000 \u0000ABSTRAK\u0000Upaya untuk mengurangi konsentrasi kation logam berat di lingkungan telah menjadi perhatian sehubungan dengan dampak yang dapat ditimbulkan dan masih adanya pencemaran logam berat di perairan. Penelitian ini bertujuan untuk mengkaji kapasitas adsorpsi kation Pb(II) dan Fe(III) menggunakan senyawa 5,11,17,23-tetra-(t-butil)-25,26,27,28-tetra-hidroksikaliks[4]arena (TBKA) dengan berbagai variasi pH. Karakterisasi hasil sintesis TBKA dilakukan dengan menggunakan spektroskopi FTIR dan 1H-NMR. TBKA difungsikan sebagai adsorben atau penjerap polutan kation Pb(II) dan Fe(III)  dengan sistem perendaman. Hasil penelitian menunjukkan bahwa variasi pH berpengaruh terhadap kapasitas adsorpsi daya jerap antara adsorben TBKA terhadap kation Pb(II) dan kation Fe(III).  Kapasitas adsorpsi daya jerap antara adsorben TBKA terhadap kation Pb(II) pada pH 2; 3; 4; 5; dan 6 secara berturut turut adalah 6,32; 2,16; 4,14; 10,52; dan 2,88 mg/g, sedangkan kapasitas adsorpsi terhadap daya jerap antara TBKA terhadap kation Fe(III) pada pH 1,5; 3; 4; 5 dan 6 secara berturut turut adalah 8,4; 13,32; 11,6; 14,18; dan 6,66 mg/g.\u0000Kata kunci: TBKA, Rendam, Variasi pH, Kapasitas adsorpsi","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79546189","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":"Studi Pendahuluan Pemanfaatan Sludge IPAL Industri Tekstil Sebagai Bahan Baku Briket","authors":"Dini Rahmaulina, E. Hartati, D. Marganingrum","doi":"10.29122/jtl.v23i1.4639","DOIUrl":"https://doi.org/10.29122/jtl.v23i1.4639","url":null,"abstract":"ABSTRACT\u0000The sludge textile industry was a by-product from wastewater treatment plant (WWTP) categorized as toxic and hazardous waste, sludge (SL) produced every day from WWTP could cause problems in the factory environment, such as reducing the storage space and aesthetic of the factory environment. This study discussed sludge that will be used as raw materials for briquettes. The analysis of the study was based on proximate analysis, calorific value, total sulfur, heavy metals, and slagging and fouling potential, which used method ASTM, AAS, Spectrophotometry and Gravimetry. These sludge briquettes materials were also added with additional raw material: bottom ash (BA); afterwards, it was mixed with sludge, and the compositions were 90%BA:10%SL, 80%BA:20%SL, and 70%BA:30%SL. The characteristic quality of briquettes was compared to Ministry of Environmental Regulation Number 06 of 2021 and Indonesia National Standard Number 4931 of 2010. The analysis of sludge material for briquette had moisture content, ash content, volatile matter, fixed carbon, calorific value, and total sulfur of 2.57%, 7.92%, 4.76%, 13.47%, 1,172 kcal/kg, and 0.98%, respectively. In addition, the slagging and fouling potential indicated moderate and low classification with the impact value index of 0.310 and 0.412, respectively. The study results also showed that the best briquette was a briquette that uses a composition of 70%BA:30%SL. This briquette had a calorific value of 1,473 kcal/kg; however, it has not met the provisions of the Ministry of Environmental and Forestry Regulation Number 06 of 2021 and Indonesia National Standard Number 4931 of 2010.\u0000 \u0000ABSTRAK\u0000Sludge Industri Tekstil merupakan hasil samping dari proses Instalasi Pengolahan Air Limbah (IPAL) yang tergolong ke dalam limbah B3, sludge (SL) yang dihasilkan dari IPAL dapat menimbulkan masalah berupa berkurangnya ruang penyimpanan sludge serta menganggu estetika lingkungan pabrik. Studi ini membahas sludge yang selanjutnya akan digunakan sebagai bahan baku bahan bakar briket. Analisis studi yang akan dikaji yaitu analisis proksimat, nilai kalor, total sulfur, kandungan logam berat serta potensi terjadinya slagging dan fouling menggunakan metode ASTM, AAS, Spektrofotometri serta Gravimetri. Briket berbahan baku sludge kemudian ditambahkan bahan baku tambahan berupa bottom ash (BA) yang kemudian dicampur dengan sludge pada komposisi 90%BA:10%SL, 80%BA:20%SL, dan 70%BA:30%SL. Kualitas briket tersebut dibandingkan dengan Peraturan Menteri Lingkungan Hidup No 06 Tahun 2021 dan SNI 4931 Tahun 2010. Berdasarkan studi yang dilakukan sludge memiliki kandungan kadar air, kadar abu, volatile matter, fixed carbon, nilai kalor, dan total sulfur secara berturut-turut 2,57%, 79,2%, 4,76%, 13,47%, 1.172 kkal/kg dan 0,98%. Selain itu penggunaan sludge terhadap potensi slagging dan fouling terindikasi sedang dan rendah dengan indeks secara berturut-turut 0,310 dan 0,412. Berdasarkan studi, briket terbaik terdapat pada briket d","PeriodicalId":31853,"journal":{"name":"Jurnal Sains Teknologi Lingkungan","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83119062","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}