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All Journal Jurnal Teknik ITS Jurnal Sains dan Seni ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Eksergi: Chemical Engineering Journal Konversi Journal of Environment and Sustainability Research of Environmental Science and Engineering Devotion: Journal of Research and Community Service Jurnal Teknologi Lingkungan Lahan Basah Envirotek : Jurnal Ilmiah Teknik Lingkungan Applied Research in Science and Technology Serambi Engineering

Joni Hermana

Institut Teknologi Sepuluh Nopember Surabaya

Author-ID : 280413

Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health

Published : 22 Documents Claim Missing Document

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Kajian Pembakaran Sampah Plastik Jenis Polipropilena (PP) Menggunakan Insinerator Annisa Jasmine Rudend; Joni Hermana
Jurnal Teknik ITS Vol 9, No 2 (2020)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23373539.v9i2.55410

Pada kajian ini dilakukan perhitungan teoritis pembakaran sampah plastik jenis polypropylene menggunakan sistem batch dengan variabel kadar air dan jumlah sampah. Tujuan penelitian ini adalah untuk menentukan pengaruh kadar air dan jumlah PP terhadap perubahan suhu dan emisi gas pada sistem insinerasi serta menghitung Destruction Removal Efficiency (DRE) sampah pada insinerator. Kajian ini dilakukan berdasarkan unit insinerator yang memiliki kemampuan membakar sampah domestik dengan kapasitas 10 kg/jam. Sampah yang digunakan adalah sampah plastik jenis PP, kain, kayu, kertas dan kardus. Parameter uji dalam penelitian ini yaitu suhu ruang bakar insinerator dan emisi gas buang insinerator berupa SO3 dan Cl2. Kajian ini dilakukan berdasarkan: 1) Perhitungan termodinamika, 2) Perhitungan stoikiometri, 3) Perhitungan emisi polutan insinerator dan 4) Perhitungan DRE. Hasil dari kajian ini adalah peningkatan jumlah PP dan penurunan kadar air sampah akan menyebabkan kenaikan pada temperatur pembakaran. Sedangkan peningkatan jumlah PP dan penurunan kadar air sampah menyebabkan kenaikan pada konsentrasi emisi gas buang SO3 dan Cl2. Temperatur paling rendah adalah 1103,832 °C yang dihasilkan oleh jumlah PP 50% dan kadar air 5,13%, sedangkan temperatur paling tinggi adalah 1122,98 °C yang dihasilkan oleh jumlah PP 80% dan kadar air 2,148%. Konsentrasi emisi gas buang paling rendah adalah 27,895 ppm SO3 dan 63,137 ppm Cl2 yang dihasilkan oleh jumlah PP 50% dan kadar air 7,58%, sedangkan konsentrasi paling tinggi adalah 32,564 ppm SO3 dan 73,704 ppm Cl2 yang dihasilkan oleh jumlah PP 80% dan kadar air 2,148%. Nilai DRE paling tinggi adalah 96% dan paling rendah adalah 94,9%.

Inventarisasi Fluktuasi Emisi Polutan NOx, CO2, dan CH4 di Bandar Udara Internasional Juanda Kabupaten Sidoarjo Afifah Raudloh Anni'mah; Abdu Fadli Assomadi; Joni Hermana
Jurnal Teknik ITS Vol 7, No 1 (2018)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Inventarisasi emisi dilakukan dengan mendaftar besaran polutan dari sumber pencemar dari sektor energi, yaitu transportasi on-road, transportasi off-road, dan sektor limbah yang meliputi limbah padat domestik dan limbah cair domestik. Rentang waktu invetarisasi adalah tahun 2006 hingga tahun 2016. Perhitungan menggunakan worksheet Atmospheric Brown Clouds (ABC) – Emission Inventory Manual (EIM) Excel 2013 dan worksheet IPCC 2006 Guidelines for National Greenhouse Gas Inventories (GL) Excel. Identifikasi menunjukkan NOX dan CH4 berasal dari pembakaran kurang sempurna pada transportasi on-road maupun off-road. Fluktuasi emisi sektor transportasi on-road sangat bergantung pada jenis kendaraan, sedangkan sektor transportasi off-road sangat bergantung pada tipe pesawat. Fluktuasi emisi sektor limbah padat domestik bergantung pada efisiensi pembakaran di insenerator, sedangkan faktor emisi limbah cair domestik bergantung pada bangunan pengolahan. Alternatif yang disarankan pada sektor off-road berupa menejemen LTO (kegiatan taxi). Pada transportasi on-road, yaitu realisasi pengadaan dan penggunaan kereta api.

Pengaruh Konsentrasi Substrat dan Konsentrasi Bakteri Pada Produksi Alga Dalam Sistem Bioreaktor Proses Batch Febri Indah Sri Utami; Joni Hermana
Jurnal Sains dan Seni ITS Vol 2, No 2 (2013)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), ITS

Pesatnya perkembangan zaman juga diiringi meningkatnya kebutuhan akan Bahan Bakar Minyak (BBM) yang merupakan sumberdaya energi yang tidak dapat diperbarui. Salah satu energi alternatif yang termasuk energi terbarukan adalah biodiesel. Alga merupakan salah satu alternatif bahan yang dikembangkan sebagai bahan baku pembuatan biodiesel. Pada penelitian ini akan dilakukan penumbuhan alga dengan konsentrasi substrat dan konsentrasi bakteri yang berbeda-beda sehingga didapatkan konsentrasi ideal pada produksi alga untuk bahan baku biodiesel. Tujuan dari penelitian ini yaitu untuk mengkaji pengaruh konsentrasi substrat dan konsentrasi bakteri pada produksi alga dalam bioreaktor sistem batch. Pada penelitian ini akan dilakukan penelitian mengenai pengaruh konsentrasi substrat sebesar 50 mg/L, 100 mg/L dan 150 mg/L dan untuk konsentrasi bakteri sebesar 50 mL, 100 mL dan 150 mL. Pengambilan sampel dilakukan satu kali dalam sehari pada pagi hari dan dilakukan setiap hari selama pelaksanaan penelitian berlangsung. Penambahan konsentrasi substrat yang tepat pada bioreaktor dengan sistem batch ini yaitu 100 mg/L dengan konsentrasi bakteri sebesar 150 mg/L. Hal ini disebabkan konsentrasi klorofil a memiliki nilai yang lebih tinggi dibandingkan dengan reaktor lainnya. Pada produksi alga pengaruh konsentrasi substrat dibutuhkan oleh alga untuk tumbuh dimana bakteri akan menghasilkan karbon dioksida yang akan digunakan alga sebagai proses fotosintesis. Sehingga penambahan substrat yang tepat dapat memproduksi alga dengan jumlah yang berkecukupan

EFFECT OF pH ON LIQUID-PHASE MASS TRANSFER AND DIFFUSIVITY COEFFICIENT AT LEACHATE TREATMENT OF MUNICIPAL WASTE LANDFILL IN ANAEROBIC BIOREACTOR Abdul Kahar; IDAA Warmadewanthi; Joni Hermana
Eksergi Vol 15, No 2 (2018): Vol. 15 No.2 (2018)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v15i2.2327

Leachate is a liquid waste resulted from physical, biological and chemical decomposition of landfill waste. Leachate contains complex dissolved organic and anorganic substrate which are biodegradable and non-biodegradable. Anaerobic treatment principally utilizes anaerobic bacteria in order to degrade the dissolved organic substance into biogas. Anaerobic treatment is very sensitive towards the substrate cocentration, temperature, and pH. This research used anaerobic bioreactor with the volume of 160 L, the ratio of the leachate: biogas is 70:30. Seeding and acclimatization steps were done, respectively for 10 days, leachate treatment was done in 21 days. Seeding, acclimatization, and leachate treatment were done on the pH ambience of 7.2 and 8.0 and ambient temperature. COD and VFA analysis were done every two days. The objective of this research is to decide the pH effect on the coefficient of liquid-phase mass transfer: kL, and the diffusivity of the dissolved substace, DL. pH affects the degradation of the concentratio of dissolved organic substrate in the leachate. The higher the pH is, the higher the obtained VFA concentration is. VFA concentration is affected by pH; however, it still considers the optimal pH condition of the substrate biodegradation. pH affects the average rate of mass transfer, rkL and diffusivity of the dissolved substance, DL in the anaerobic treatment of leachate. pH affect the concentration of dissolved organic substrate which subsequently influenes the coefficient of liquid-phase mass transfer of the leachate, kL and the diffusivity of the dissolved substance, DL. The higher the pH is, the more increasing the kL is and the more decreasing the DL is.

EFFECTS OF TEMPERATURE-pH ON LIQUID PHASE MASS TRANSFER AND DIFFUSION COEFFICIENTS AT LEACHATE TREATMENT IN ANAEROBIC BIOREACTOR Abdul Kahar; IDAA Warmadewanthi; Joni Hermana
Konversi Vol 7, No 2 (2018): Oktober 2018
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v7i2.6501

Abstract - Leachate contains complex dissolved organic and inorganic substrates that are biodegradable and non-biodegradable. Principally, anaerobic treatment utilizes anaerobic bacteria to degrade the dissolved organic matters. Anaerobic treatment is very sensitive towards the change of temperature and pH. This research used an anaerobic bioreactor with volume of 160L, with a ratio of leachate:biogas was 70:30. Seeding, acclimatization and leachate treatment were executed at temperature 35°C; pH ambient, temperature 45°C; pH ambient, temperature 35°C; pH 7.2 and temperature 45°C; pH 8.0. Based on this research, that there is dependency on mass of solutes organic substrate (COD) in the leachate, at all operating conditions of leachate treatment in anaerobic bioreactor. Hence, the organic substrate concentration (COD) will affect the VFA, the liquid phase mass transfer and diffusion of solute organic. Consequently, the higher the temperature-pH, the higher the liquid-phase mass transfer, but lower diffusion coefficients is. Keywords: anaerobic bioreactor, diffusion, leachate, liquid-phase mass transfer

EVALUASI PROGRAM UNGGULAN PENGELOLAAN LINGKUNGAN PLTU X JAWA TIMUR BERDASARKAN LIFE CYCLE ASSESSMENT (LCA) Maya Maharani; Joni Hermana; Adhi Yuniarto
Envirotek : Jurnal Ilmiah Teknik Lingkungan Vol 14 No 1 (2022): Envirotek : Jurnal Ilmiah Teknik Lingkungan
Publisher : Program Studi Teknik Lingkungan, Universitas Pembangunan Nasional Veteran Jawa Timur

Dalam kegiatan proses produksi energi listrik PLTU dengan bahan bakar batu bara, beberapa unit proses akan menghasilkan emisi yang berpotensi menimbulkan dampak pada lingkungan dan kesehatan manusia. Tujuan dari penelitian ini yaitu menganalisis dampak lingkungan yang paling dominan dan unit operasi yang memberikan kontribusi dampak lingkungan paling besar sehingga dapat menjadi inputan untuk mengevaluasi program yang telah diimplementasikan di perusahaan untuk mengurangi dampak lingkungan. Analisis dampak lingkungan dilakukan dengan metode LCA menggunakan aplikasi SimaPro dengan metode CML-1A dan ReCiPe. Hasil analisis LCA menunjukkan bahwa proses produksi per 1 kWh listrik memberikan kontribusi dampak lingkungan yang paling dominan berdasarkan metode CML-IA Baseline yaitu abiotic depletion fossil fuel sebesar 11,62466 MJ dan berdasarkan metode ReCiPe 2016 Midpoint yaitu dampak global warming sebesar 1,049575 kg CO2 dan dampak terrestrial acidification sebesar 0,003672 kg SO2 eq. Rekomendasi untuk menurunkan emisi yaitu optimalisasi mixing biomassa dan penggunaan biodiesel sebagai bahan bakar.

EVALUASI PROGRAM UNGGULAN PENGELOLAAN LINGKUNGAN PLTU X JAWA TIMUR MENGGUNAKAN LIFE CYCLE ASSESSMENT (LCA) Joni Hermana; Adhi Yuniarto; Maya Maharani
Envirotek : Jurnal Ilmiah Teknik Lingkungan Vol. 14 No. 1 (2022): Envirotek: Jurnal Ilmiah Teknik Lingkungan
Publisher : Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/envirotek.v14i1.193

Dalam kegiatan proses produksi energi listrik PLTU dengan bahan bakar batu bara, beberapa unit proses akan menghasilkan emisi yang berpotensi menimbulkan dampak pada lingkungan dan kesehatan manusia. Tujuan dari penelitian ini yaitu menganalisis dampak lingkungan yang paling dominan dan unit operasi yang memberikan kontribusi dampak lingkungan paling besar sehingga dapat menjadi inputan untuk mengevaluasi program yang telah diimplementasikan di perusahaan untuk mengurangi dampak lingkungan. Analisis dampak lingkungan dilakukan dengan metode LCA menggunakan aplikasi SimaPro dengan metode CML-1A dan ReCiPe. Hasil analisis LCA menunjukkan bahwa proses produksi 1 kWh listrik memberikan kontribusi dampak lingkungan yang paling dominan berdasarkan metode CML-IA Baseline yaitu abiotic depletion fossil fuel sebesar 11,62466 MJ dan berdasarkan metode ReCiPe 2016 Midpoint yaitu dampak global warming sebesar 1,049575 kg CO2 dan dampak terrestrial acidification sebesar 0,003672 kg SO2 eq.

Correlation Analysis Of PM10 With Tropospheric Ozone (O3) During Forest And Land Fire Event In Sumatera Ade Ayu Oktaviana; Alvin Pratama; Ikhsan Buyung Arifin; Joni Hermana
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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

Indonesia has a forest area of 120,495,702.96 hectares which is vital for human survival. However, significant forest fires, such as those in 1997/1998 and 2015, have caused widespread damage and impacted neighboring countries. These forest fires contribute to an increase in tropospheric ozone (O3) concentrations which are dangerous for human health. This study aims to evaluate the correlation between PM10 and tropospheric ozone in Sumatra during forest fires, using data from the Bukit Kototabang Global Atmospheric Monitoring Station. The analysis method involves measuring PM10 and O3 concentrations using the BAM1020 and Ozone Analyzer Model 49 I, as well as Pearson correlation and linear regression analysis. Results show that there is a positive correlation (r = 0.53) between PM10 and tropospheric ozone, with PM10 increasing as O3 concentrations increase during extreme conditions. The average monthly concentrations of PM10 and O3 during 2016-2020 were 21.75 µg/m3 and 11.61 ppb respectively, with peak concentrations of PM10 in September and O3 in February. Increases in PM10 during forest fires contribute to increases in ozone precursors and photochemical processes, accelerating the formation of tropospheric ozone.

Projection of Climate Impact on Discharge and Energy Production of Cascade Hydroelectric Power Plant in North Sulawesi Haq, Guntur Ibnu; Hermana, Joni
Applied Research in Science and Technology Vol. 5 No. 1 (2025): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v5i1.77

Background: Climate change is a major challenge for the sustainability of hydropower plants (PLTA) in tropical areas such as North Sulawesi, which are highly dependent on water availability from seasonal rainfall.Aims & Methods: This study aims to project the water discharge and electricity production of the Tonsealama, Tanggari I, and Tanggari II hydropower plants based on the SSP2-4.5 and SSP5-8.5 climate change scenarios. Historical climate data (2014–2024) from BMKG and hydropower plant operation data (2019–2024) are used to train the prediction model using the Random Forest algorithm, with bias correction performed on the CMIP6 GCM output through a hybrid approach combining Random Forest and Delta Change.Result: The results show a consistent decrease in discharge and energy at the three hydropower plants, especially in May, which has been the peak of the rainy season. The average annual discharge decrease reached 9%, while the decrease in electricity was recorded at 5,528.77 MWh (SSP2-4.5) and 3,053.42 MWh (SSP5-8.5) for the Tonsealama hydropower plant; 8,085.37 MWh and 12,625.98 MWh for PLTA Tanggari I; and the highest decline was experienced by PLTA Tanggari II of 18,160.42 MWh and 9,255.40 MWh. Although higher warming occurs in the SSP5-8.5 scenario, occasional extreme rainfall events partially offset the decline in energy production. These findings emphasize the importance of adaptation strategies through more flexible reservoir management, turbine operations, and integrated water resource planning to increase system resilience to future climate uncertainty.

Strategi Adaptasi Dampak Perubahan Iklim Terhadap Pembangunan Infrastruktur Ketenagalistrikan Di Wilayah Kalimantan Timur Rachman, Fandi Nufinda; Hermana, Joni; Syafe'i, Arie Dipareza; Assomadi, Abdu Fadli
Jurnal Teknologi Lingkungan Lahan Basah Vol 13, No 2 (2025): July
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v13i2.96160

Climate change is a global issue that affects various sectors, including the electricity sector, with one of the impacts of climate change being the increased risk of landslides influenced by rainfall, land use, slope gradient, and soil type. This research aims to assess the landslide risk in East Kalimantan on electricity infrastructure and formulate adaptation strategies for these landslides. The research method is a quantitative analysis and spatial approach by combining historical data and climate projections up to the year 2060 using the CMIP6 dataset scenarios SSP2-4.5 and SSP5-8.5. Data processed using Geographic Information System (GIS) to produce landslide risk maps for both current conditions and projections. The determination of adaptation strategies is carried out through a combination of SWOT Analysis and Analytical Hierarchy Process (AHP) methods. This research shows that the projection of landslide risk class areas in most parts of East Kalimantan is predominantly in the moderate risk class with an area of 58.16% and the high-risk class with an area of 26.43%. The priority strategies for landslide adaptation in the development of electrical infrastructure are chosen based on the analysis of three aspects: the optimization of DPT development and other supporting technologies in a planned and integrated manner, the preparation of a roadmap for prioritizing the reduction of extreme operational risk points as part of efforts to adapt to the projected increase in landslide risk, and the utilization of evaluation results from periodic monitoring and field inspections to support risk-based electrical infrastructure development planning.

Co-Authors Abdu Fadli Assomadi Abdul Kahar Achmad Alvinsyah Rasyidi Ade Ayu Oktaviana Adhi Yuniarto Afifah Raudloh Anni'mah Alvin Pratama Annisa Jasmine Rudend Ardhi Rahmadhani Artama, Putu Assomadi, Abdu F. Boedisantoso, Rachmat Febri Indah Sri Utami Haq, Guntur Ibnu I.D.A.A Warmadewanthi Ikhsan Buyung Arifin Ipung Fitri Purwanti Kasih Ditaningtyas Sari Pratiwi Lancur Setoaji Maya Maharani Maya Maharani Minarti Oktafiani Pratiwi, Yeni Rachman, Fandi Nufinda Robertus Wisnu Wijaya Satria, Rendra Septian Hadi Susetyo, Septian Hadi Suebu, Elvis Franklin Syafe'i, Arie Dipareza Syafei, Arie Dipareza Widhi Asta Kartika Pratiwi Zahra, Fathima Asyahidatu

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