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All Journal Reaktor Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Ilmu Lingkungan IPTEK Journal of Proceedings Series Jurnal Bahan Alam Terbarukan Jurnal Pengembangan Kota Journal of Regional and City Planning Journal of Mathematical and Fundamental Sciences Journal of Engineering and Technological Sciences The Indonesian Journal of Planning and Development Jurnal Ilmiah Arena Tekstil Info-Teknik Jukung (Jurnal Teknik Lingkungan) Jurnal Ilmiah Matrik IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Teknik Lingkungan Journal of Environmental Science and Sustainable Development Indonesian Journal of Social and Environmental Issues (IJSEI) AKSELERASI: Jurnal Ilmiah Nasional Makara Journal of Science Makara Journal of Technology INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Jurnal Manusia dan Lingkungan Jurnal Teknologi Lingkungan
Suprihanto Notodarmojo
Program Studi Teknik Lingkungan, Institut Teknologi Bandung Jalan Ganesa 10, Bandung 40132
Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation

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PENCEMARAN KADMIUM DI SEDIMEN WADUK SAGULING PROVINSI JAWA BARAT (Cadmium Pollution in Saguling DAM Sediment West Java Province) Eka Wardhani; Dwina Roosmini; Suprihanto Notodarmojo
Jurnal Manusia dan Lingkungan Vol 23, No 3 (2016): September
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jml.18802

Abstract

ABSTRAKSungai Citarum Hulu merupakan sumber air utama Waduk Saguling. Kualitas air sungai ini telah mengalami penurunan bahkan terpantau beberapa logam berat terkandung dalam air Sungai Citarum. Penelitian ini bertujuan untuk melihat pencemaran Cd di sedimen Waduk Saguling pada dua musim yang berbeda. Lokasi penelitian dilakukan di 10 titik di Waduk Saguling. Penelitian mengkaji perbedaan konsentrasi Cd pada Bulan Juli 2015 mewakili musim kemarau dan Bulan November 2015 mewakili musim hujan. Sedimen yang diperiksa merupakan sedimen permukaan pada kedalaman 0-10 cm pada dasar waduk. Konsentrasi Cd di sedimen dianalisis menggunakan ICP-MS. Tingkat pencemaran sedimen akibat Cd dinilai dengan menggunakan dua metode yaitu: faktor contaminasi/contamination factor, CF dan indeks pencemaran logam/Metal Pollution Index, MPI. Berdasarkan hasil penelitian konsentrasi Cd dalam air selama satu dekade mulai tahun 2008-2014 cenderung mengalami peningkatan, dengan konsentrasi berkisar antara 0 mg/L-0,14 mg/L. Konsentrasi rata-rata Cd di sedimen Waduk Saguling pada Bulan Juli 2015 mewakili musim kemarau sebesar 13,54 mg/kg, sedangkan pada Bulan November 2015 mewakili musim hujan sebesar 21,08 mg/kg. Konsentrasi Cd di sedimen Waduk Saguling tidak memenuhi baku mutu kualitas sedimen berdasarkan baku mutu yang berlaku di Australian dan New Zaeland mengingat Indonesia belum memiliki baku mutu kualitas sedimen yaitu sebesar 1,5 mg/kg. Hasil penilaian kualitas sedimen dengan menggunakan metode CF di semua titik penelitian di Waduk Saguling termasuk kategori terkontaminasi sangat tinggi sedangkan berdasarkan hasil penilaian dengan MPI kualitas sedimen Waduk Saguling termasuk kategori tercemar oleh logam berat Cd. Hasil penelitian ini dapat dijadikan bahan pertimbangan bagi pengelolaan Waduk Saguling mengenai kondisi pencemaran logam berat yang telah terjadi di waduk tersebut.ABSTRACTCitarum river is the main water source for Saguling Dam. The river waters quality has decreased even observed some heavy metals contained in the water. The aims of this study to assess Cd contamination in Saguling sediments in two different seasons. Location of the study conducted at 10 points in Saguling. The study evaluated the differences concentration of Cd in July 2015 represents the dry season and November 2015 represents the rainy season. Surface sediments samples taken from 0-10 cm a depth. Cd concentrations in sediments were analyzed using ICP-MS. Sediment contamination level assessed using two methods which are Contamination Factor (CF), and Metal Pollution Index (MPI). Based on the research Cd concentration in water for a decade beginning in 2008-2014 tended to increase, with concentrations ranging from 0 mg/L-0.14 mg/L. Average concentrations of Cd in sediments Saguling in July 2015 represents the dry season was 13.54 mg/kg, while in November 2015 amounted to 21.08 mg/kg. Cd concentrations in Saguling sediments not meet the quality standards based on Australian and New Zaeland standard of 1.5 mg/kg. Sediments quality assessment using the CF the category of very high contamination at all samples points in Saguling, while based on the MPI sediment quality Saguling polluted by heavy metals Cd. Results of this study can be considered for the management Saguling on the condition that heavy metal pollution occurs in the reservoir.
Effect of Sonication Frequency and Power Intensity on the Disruption of Algal Cells: Under Vacuum and Non-Vacuum Conditions Martin Darmasetiawan; Prayatni Soewondo; Suprihanto Notodarmodjo; Dion Awfa
Journal of Engineering and Technological Sciences Vol. 55 No. 3 (2023)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2023.55.3.8

Abstract

The presence of algae caused by anthropogenic eutrophication in water has become a severe environmental issue. Various treatment options for algae removal have been developed, such as filtration, coagulation, sedimentation, flotation, algicides, ozone, and photolysis. However, these technologies are complex, expensive, consume considerable amounts of various chemicals, and may cause further pollution (i.e., by-product formation). Ultrasonic exposure is an alternative method for removing algae from water that is environmentally friendly (i.e., no addition of chemicals) and almost unaffected by any turbidity in the water. In this study, process optimization of ultrasonication (e.g., by adjusting frequency, power intensity, and exposure time) for the removal of alga was tested under vacuum and non-vacuum conditions. Experiments were conducted on a batch of algae solution in a clear glass tube ultrasonicated by a 20 kHz transducer for 180 minutes. The tube was depressurized up to -67 N/m2 in a depressurizing chamber. The data was collected at transducer depths of 0.06, 0.13, and 0.19 m. It was concluded that the optimum condition (i.e., 92% algal cell disruption) was achieved when the power intensity was 7 kWh/m3, under vacuum conditions, at a frequency of 20 kHz and 180 minutes of exposure time. Higher power intensity gave higher energy for cell disruption, moreover by depressurizing the air above the algae solution, the lysis effect for algae reduction increased from 20% to 70% compared to the non-depressurized system due to higher cavitation bubble production. In addition, the depth of the transducer was another factor that could increase the lysis of the algae water. Therefore, this technology has future potential application for algae removal from water.
Marine Debris Collection Model with Intermediate Transition Station (ITS) Systems Planning in Jakarta Mega Mutiara Sari; Takanobu Inoue; Regil Kentaurus Harryes; Iva Yenis Septiariva; Kuriko Yokota; Suprihanto Notodarmodjo; Shigeru Kato; Kevin Foggy Delu; Wisnu Prayogo; I Wayan Koko Suryawan
Jurnal Ilmu Lingkungan Vol 22, No 4 (2024): July 2024
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.22.4.914-922

Abstract

Marine debris in Jakarta is a complex problem because the amount is too large every day. Addressing this critical gap, this study proposes a model for efficient waste transportation through the development of an Intermediate Transition Station (ITS) system. This system not only facilitates the effective movement of waste but also incorporates a recovery process to reduce the volume of debris before it reaches the landfill. The ITS serves as a pivotal node in the waste management network, ensuring the continuity of waste flow from accumulation points to processing facilities. With the ITS, the total marine debris managed amounts to 39.96 tons/day, of which 9.33 tons/day is recovered, leaving a significantly reduced residue of 25.63 tons/day or 1.134 m3/day for landfill disposal. Implementing the Haul Container System (HCS) within this framework, the study demonstrates that waste transportation from the ITS to Jakarta's Bantar Gebang Integrated Waste Processing Site can be streamlined to just 3 trips/day. By providing a structured and strategic approach to marine debris transportation, the ITS model aims to prevent the re-pollution of Jakarta's water bodies and significantly reduce the carbon footprint by 67.2% from current conditions, thereby offering a sustainable solution to this pressing urban environmental challenge.
Photocatalytic Decolorization of Acid Red 4 Azo Dye by Using Immobilized TiO2 Microparticle and Nanoparticle Catalysts Sugiyana, Doni; Soenoko, Bambang; Handajani, Marisa; Suprihanto, Suprihanto
Makara Journal of Science Vol. 16, No. 3
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research studied the synthesis of immobilized TiO2 microparticle and nanoparticle catalyst materials and evaluated its photocatalytic activity on the decolorization of Acid Red 4 (AR4) azo dye solution. TiO2 microparticles were immobilized on an acrylic plate, while TiO2 nanoparticles were immobilised on a glass plate. TiO2 nanoparticles were embedded in a nanofiber support layer to enhance photocatalytic performance, forming a nanofiber-nanoparticle composite on the glass plate. In the catalyst load 2.0 g/l, the performance of the photocatalytic layer of immobilized catalyst (k '= 0.013/min) was better than that of the suspended catalyst (k' = 0.008/min). Photocatalytic decolorization efficiency of TiO2 immobilized catalysts of nanoparticle sized reached 82.3% in irradiation time of 2 hours, which was higher than microparticle sized catalysts (77.8%). The technique of TiO2 nanofiber–nanoparticle composite showed improved photocatalytic kinetics (k’= 0.018/min) compared to a single layer of nanoparticle catalyst (k'= 0.015/min). Immobilized TiO2 catalysts remain effective with repeated use despite a slight decrease in processing efficiency.
STORAGE AND COLLECTION RIVER DEBRIS PLANNING IN TANGGUL RIVER SURAKARTA CITY, INDONESIA AS SOURCE OF WASTE MANAGEMENT USING THE MULTI-CRITERIA DECISION-MAKING METHOD Sari, Mega Mutiara; Inoue, Takanobu; Nafisah, Aninda Putri; Harryes, Regil Kentaurus; Yokota, Kuriko; Septiariva, Iva Yenis; Suhardono, Sapta; Kato, Shigeru; Notodarmojo, Suprihanto; Suryawan, I Wayan Koko
Journal of Environmental Science and Sustainable Development Vol. 5, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Tanggul River in Surakarta City is a tributary that empties into the Bengawan Solo River. Domestic activities located on river borders can pollute with the waste generation. Therefore, managing waste sources such as storage and collection is crucial in waste management. This study aims to analyze waste management from river debris storage and collection around the study site. The technique used in this research is direct observation of the study area and performing a decision analysis for alternative processing. Decision support system has one model, namely Multi-Criteria Decision Making for environmental development. The activities for collecting and sorting river debris in the Tanggul River are not yet available. The existing river debros collection used a 7 cm diameter net that has been installed at the sluice gate of the Tanggul River. Considering aspects or criteria in implementing accommodation activities needs to be carried out before determining the best alternative. Therefore, several measures need to be considered in determining the container based on SNI 19-2454-2002 concerning Operational Procedures for Urban Waste Management and Minister of Public Works Regulation Number 3 of 2013. The collection activity in alternative 1 uses the Brute Boom system: Heavy Duty Containment Boom equipped with a galvanized weir mesh net attached under the boom. The collection activity in alternative 2 uses a floating cube. The floating cube is a cube-shaped Waste holder that can float in the river to effectively hold waste floating on the surface of the river body. It is imperative to prevent river pollution from activities by providing infrastructure for storing and collecting waste. However, it does not have a more significant impact, such as the Tanggul River to the Bengawan Solo River in Surakarta City.
Decision Analysis of Alternative River Debris to Landfill Transportation Systems in Jakarta Sari, Mega Mutiara; Inoue, Takanobu; Harryes, Regil Kentaurus; Kato, Shigeru; Septiariva, Iva Yenis; Suhardono, Sapta; Notodarmojo, Suprihanto; Delu, Kevin Foggy; Suryawan, I Wayan Koko
The Indonesian Journal of Planning and Development Vol 7, No 1 (2022): February 2022
Publisher : Department of Urban and Regional Planning, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijpd.7.1.14-20

Abstract

River debris in Jakarta is generated in several locations by conventional transportation. Waste transportation with traditional models is usually not time-efficient, primarily when river debris is generated every time. Transport systems that can be used for river debris include compactor systems, pre-compactor systems, and baller systems. This research uses literature study and secondary data in determining alternatives. Meanwhile, the alternative selection was carried out using the Multi-Criteria Decision Making (MCDM) method. This study uses four criteria for selecting alternatives: initial capital, type of transport container, operation and maintenance, and processing capability. The utility value of waste transportation with compaction and pre-compacting systems does not significantly have utility values of 0.722 and 0.833, respectively. At the same time, the baller system has a utility value of 0.222. This shows that the compacted system is more suitable to be applied to SPA river debris in Jakarta. The presence of a pr-compactor can also reduce the water content in-river debris.
Perbandingan Model Proses Bisnis Untuk Mendukung Analisis dan Penetapan Requirement Pada Pengembangan Perangkat Lunak Lieharyani, Djoko Cahyo Utomo; Sundari, Santi; Suprihanto, Suprihanto
Jurnal Ilmiah Matrik Vol. 26 No. 2 (2024): Jurnal Ilmiah Matrik
Publisher : Direktorat Riset dan Pengabdian Pada Masyarakat (DRPM) Universitas Bina Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33557/jurnalmatrik.v26i2.3258

Abstract

Abstract : Business process modeling in application software development, especially during the analysis phase, is essential for a deep understanding of the problem domain. By understanding the business process, developers can identify important elements in a project or things that hinder the progress of a process, and communicate them to stakeholders. Model-Based Requirements Engineering (MBRE) uses formal models to define, analyze, and manage software requirements, offering advantages over text-based methods. This study compares various MBRE diagrams such as Business Process Modeling Notation (BPMN), Flowmap, Swimlane, Use Case, Sequence, and Activity diagrams, using a case study of a final project (TA) management application at JTK Polban. The results show that BPMN is the most suitable model, as it represents processes sequentially, is easily understood by stakeholders, and supports validation with other tools. BPMN implementation is expected to be a key reference in application development at JTK Polban.
RIVER DEBRIS TRANSPORT PLANNING FROM SOURCE TO PUTRI CAMPO FINAL PROCESSING PLACE, SURAKARTA CITY Sari, Mega Mutiara; Inoue, Takanobu; Harryes, Regil Kentaurus; Yokota, Kuriko; Septiariva, Iva Yenis; Suhardono, Sapta; Kato, Shigeru; Notodarmojo, Suprihanto; Nafisah, Aninda Putri; Suryawan, I Wayan Koko
Jurnal Pengembangan Kota Vol 10, No 2: Desember 2022
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpk.10.2.118-126

Abstract

The waste from the river is one of the obstacles in managing the Bengawan Solo River, Surakarta City. River debris is usually collected in tributaries so as not to carry the pollutant load to the watershed, causing flooding, and then transported to the Final Processing Site (TPA). This study aims to analyze the waste transportation system from the source to the landfill. This research was conducted by direct observation and using Multi-Attribute Utility Theory (MAUT) for determination. Alternative waste transportation used are haul container system (HCS) and stationary container system (SCS). The criteria used are the number of ritations, price, ease of transportation, potential damage, maintenance, and type of container. Based on the weighting results on the MAUT analysis, transportation with the SCS method has a higher weight than the HCS method.
Comparison of Different Volume Reactor for Batik Wastewater Pre-Treatment with Ozonation to Improve Biodegradability Sofiyah, Evi Siti; Septiariva, Iva Yenis; Helmy, Qomarudin; Notodarmojo, Suprihanto; Suryawan, I Wayan Koko
Reaktor Volume 22 No.2 August 2022
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.22.2.42-48

Abstract

Batik is a unique ethnic and heritage textile from Indonesia with low biodegradability (BOD5/COD) and demanding biological wastewater treatment. However, in its application a high biodegradability value is needed. To increase biodegradability the ozonation process can be used as pre-treatment. The purpose of this study is to determine the effectiveness of ozone pre-treatment in color removal, COD removal, and changes in biodegradability. This study was divided into two types of the reactor with a volume of 2 L and 16 L with each dose of 4 mg/min and 40 mg/min. The results of color removal in the reactor with a volume of 2 L showed a value of 85% for color removal and 34.6% for COD removal. The reduction in efficiency occurred in the color removal to 65% in reactor 16 L. The removal of COD with a volume of 16 L was not evenly distributed at each altitude of 43; 35; and 33% (50; 100; 150 cm). Biodegradability increased from 0.143 to 0,49 (2L reactor) and 0.4-0.45 (16L reactor), this allows for the application of higher biological wastewater treatment. Which the NH3-N and total phenol removal efficiencies of 12.9%-31.4% and 3-21.2%, respectively.
ANALISIS PERUBAHAN PERILAKU MANGAN TERLARUT PADA LINDI SEBAGAI PENGARUH DARI SAMPAH PLASTIK Rahayu, Mayang Manguri; Wahyudianti, Rima; Machrunnisa; Hutagalung, Ira Rumiris; Budiman, Johan; Andriani, Tetty; Notodarmojo, Suprihanto
AKSELERASI: Jurnal Ilmiah Nasional Vol 6 No 3 (2024): AKSELERASI: JURNAL ILMIAH NASIONAL
Publisher : GoAcademica Research dan Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/jin.v6i3.1072

Abstract

Mangan terlarut dalam lindi dapat menurunkan kualitas air tanah di sekitarnya. Potensi pencemaran air tanah bersumber dari pencemaran tanah dan air atau zat cair yang teralir pada mekanisme air tanah, salah satunya di Tempat Pembuangan Akhir atau TPA. Maka dari itu, perlu dibuat suatu pemodelan untuk mengukur potensi pencemaran air tanah yang berdasarkan reaksi tanah dengan lindi serta bagaimana mekanisme aliran air tanah menuju akifer. Sebelum menganalisis pencemaran air tanah, maka penting untuk menganalisa potensi pencemaran. Lindi merupakan parameter yang berperan dalam pencemaran air tanah. Dapat dikatakan lindi adalah hasil kontaminan yang berasal dari sampah yang berpotensi mengalami perilaku khusus secara fisik, kimia, dan biologisnya dari Sampah yang tertimbun. Lindi mengandung pH yang asam hingga basa, zat organik, logam berat, dimana pH adalah parameter signifikan terhadap perubahan kelarutan Mangan terutama Mangan valensi 2(Mn2+). Mikroplastik melepaskan gas etilen sehingga melepaskan zat pembusuk dimana saat pembusukan terjadi fase asam yang menjadikan mangan lebih terlarut. Mangan terlarut fasenya stabil, sehingga lebih berbahaya pada kelarutan Mangan dalam sumber air.
Co-Authors A. Aruan, Indah Adi Mulyana Supriatna Afifah, Nuha Amiratul Amanda Larasati Amanda Larasati Andita Rachmania Dwipayani Andriani Astuti Andriani, Tetty Anne Deniva Anne Juliah Apriliawati, Rizki Benny Chatib Chatib, Benny Cintya L. Radiman Cynthia Radiman Damanhuri, Enri Dame Alvina Naomi Sitohang Delu, Kevin Foggy Dini Mayasanthy Dini Mayasanthy Dion Awfa Dirgawati, Mila Djoko Cahyo Utomo Lieharyani Doni Sugiyana Doni Sugiyana Doni Sugiyana, Doni Dwina Roosmini Dwipayani, Andita Rachmania EDWAN KARDENA Eka Wardhani Eka Wardhani Enri Damanhuri Fatimah Juhra Fatimah Juhra Geerling, Gertjan W. Gilang Garnadi Suryadi Gustiani, Srie Harja, Yulianty Harryes, Regil Kentaurus Hendra Kurniawan I Wayan Koko Suryawan I Wayan Koko Suryawan Ika Bagus Priyambada Ika Bagus Priyambada Ira Rumiris Hutagalung Iva Yenis Septiariva Iva Yenis Septiariva Iva Yenis Septiariva Johan Budiman, Johan Juhra, Fatimah Kato, Shigeru Kevin Foggy Delu Kuriko Yokota Kuriko Yokota Kuriko Yokota Kurniawan, Hendra Larasati, Amanda Larasati, Amanda Lita Darmayanti M. Irsyad Machrunnisa Mahmud Mahmud Makhmudah, Nisaul Marisa Handajani Martin Darmasetiawan Maulana, Yusuf Eka Mega Mutiara Sari Mega Mutiara Sari Mega Mutiara Sari Mega Mutiara Sari Minda Nicelia Mindryani Syafila Mindryani Syafila Mohamad Rangga Sururi Muammar Qadafi Nafisah, Aninda Putri Naomi Sitohang, Dame Alvina Nicelia, Minda Nisaul Makhmudah Noviani Ima Wantoputri Nuha Amiratul Afifah Nurulbaiti Listyendah Zahra Nurulbaiti Listyendah Zahra, Nurulbaiti Listyendah Pertiwi, Yunita Prama Setia Putra Prayatni Soewondo Prayatni Soewondo Putra, Prama Setia Qomarudin Helmy Qomarudin Helmy, Qomarudin Radiman, Cynthia Ragas, Ad M.J. Rahajeng Hasna Safira Rahayu, Mayang Manguri Riana Ayu Kusumadewi Riska Pratiwi Rohmatun Rohmatun Rositayanti Hadisoebroto Salami, Indah R. S. Sapta Suhardono Sapta Suhardono Sari, Mega Mutiara Septiariva, Iva Yenis Septiariva, Yenis Shigeru Kato Shigeru Kato Soenoko, Bambang Sofiyah, Evi Siti Sri Maryati Sri Maryati Srie Gustiani Stacia Dea Prameswari Sugiyana Doni Sugiyana Doni, Sugiyana Sugiyana, Doni Suhardono, Sapta Sundari, Santi Supriatna, Adi Mulyana Suryawan, I Wayan Koko Syafila, Mindryani T. Zulkarnain Takanobu Inoue Takanobu Inoue Takanobu Inoue Takanobu Inoue Teuku Zulkarnain Tri Padmi Utami, Rosetyati R. Wahyudianti, Rima Widiarto Widiarto Widiarto Widiarto, Widiarto Wisnu Prayogo Wulan, Diana Rahayuning Yulianty Harja Yuniati Zevi Yunita Pertiwi Yusuf Eka Maulana