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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Reka Lingkungan Indonesian Journal of Multidisciplinary Science JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Journal of Materials Exploration and Findings Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti
Dahlan, Astryd Viandila
Program Studi Teknik Lingkungan, Departemen Teknik Sipil, Fakultas Teknik, Universitas Indonesia
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PENGARUH DEBIT TERHADAP KINERJA INSTALASI PENGOLAHAN AIR LIMBAH DOMESTIK : STUDI KASUS GEDUNG A DI JAKARTA Muhammad Lian Kautsar; Djoko M. Hartono; Astryd Viandila Dahlan
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 6 No. 2 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1280.074 KB) | DOI: 10.25105/pdk.v6i2.9528

Abstract

Telah dilakukan evaluasi kinerja IPAL Gedung A dengan cara melakukan studi  pengaruh debit air limbah yang masuk ke IPAL terhadap efisiensi Penyisihan Parameter BOD, COD, TSS dan NH3-N. Penelitian dilakukan sejak Januari 2019 hingga Desember 2020. Sampel air limbah diambil di inlet dan outlet. Dari hasil penelitian ini dapat diambil kesimpulan bahwa IPAL Gedung A mempunyai kinerja yang bagus. Pada awal tahun 2019, sejak Februari hingga Agustus 2019, dengan debit rata-rata 405 m3/hari. Kinerja IPAL sangat bagus dengan Efisiensi penyisihan BOD,COD, TSS dan NH3-N lebih besar dari 90%. Pada bulan Agustus 2019 dan September 2019 Efisiensi penyisihan semua parameter mengalami penurunan, dan parameter NH3-N turun hingga 47% pada bulan Agustus dan dan 55% pada September 2019.  Efisiensi Penyisihan setiap parameter meningkat kembali mencapai lebih 90% pada bulan Oktober 2019 sampai Desember 2019. Pada tahun 2020, dengan debit rata-rata 242, efisiensi penyisihan semua parameter mencapai lebih dari 95%.
EMISI GAS RUMAH KACA DARI PENGELOLAAN SAMPAH DI JAKARTA, INDONESIA Nindi Sekarsari; Gabriel Andari Kristanto; Astryd Viandila Dahlan
Jurnal Reka Lingkungan Vol 11, No 1 (2023)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekalingkungan.v11i1.71-82

Abstract

Pengelolaan sampah perkotaan yang masih bertumpu pada pembuangan akhir di TPA (landfill) merupakan masalah lingkungan yang serius di Jakarta, Indonesia. Sistem pengelolaan sampah perkotaan berkontribusi terhadap emisi gas rumah kaca (GRK) pada semua tahapan pengelolaannya. Studi ini bertujuan memberikan gambaran umum tentang praktik pengelolaan sampah di Jakarta dan mengkaji kontribusi pengelolaan sampah perkotaan terhadap emisi GRK. Pada akhirnya dapat diketahui hotspot emisi GRK dalam tahapan pengelolaan sampah perkotaan dan lokasi spasial penyebaran emisi GRK di wilayah Jakarta. Perhitungan emisi GRK dilakukan pada setiap kota dan kabupaten administrasi pada tahun 2022 menggunakan Emission Quantification Tool (EQT) version II oleh Institute for Global Environmental Strategies (IGES). Hasil studi mengestimasi emisi GRK dari pengelolaan sampah perkotaan Jakarta pada tahun 2022 sebesar 1.516,60 ribu ton CO2-eq/tahun dengan kontributor terbesar berada di Kota Administrasi Jakarta Barat sebesar 433,4 ribu ton CO2-eq/tahun dan yang terkecil berada di Kabupaten Administrasi Kepulauan Seribu sebesar 2,7 ribu ton CO2-eq/tahun. Secara total, emisi GRK dari pembuangan akhir di TPST Bantar Gebang (2.034,5 ribu ton CO2-eq/tahun) memberikan kontribusi emisi terbesar di wilayah Jakarta. Jumlah penduduk, rendahnya praktik pengurangan sampah dan pengolahan sampah mempengaruhi besaran emisi GRK yang dihasilkan.
PENGARUH DEBIT TERHADAP KINERJA INSTALASI PENGOLAHAN AIR LIMBAH DOMESTIK : STUDI KASUS GEDUNG A DI JAKARTA Kautsar, Muhammad Lian; Hartono, Djoko M.; Dahlan, Astryd Viandila
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Volume 6, Nomor 2, Juli 2021
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v6i2.9528

Abstract

Telah dilakukan evaluasi kinerja IPAL Gedung A dengan cara melakukan studi  pengaruh debit air limbah yang masuk ke IPAL terhadap efisiensi Penyisihan Parameter BOD, COD, TSS dan NH3-N. Penelitian dilakukan sejak Januari 2019 hingga Desember 2020. Sampel air limbah diambil di inlet dan outlet. Dari hasil penelitian ini dapat diambil kesimpulan bahwa IPAL Gedung A mempunyai kinerja yang bagus. Pada awal tahun 2019, sejak Februari hingga Agustus 2019, dengan debit rata-rata 405 m3/hari. Kinerja IPAL sangat bagus dengan Efisiensi penyisihan BOD,COD, TSS dan NH3-N lebih besar dari 90%. Pada bulan Agustus 2019 dan September 2019 Efisiensi penyisihan semua parameter mengalami penurunan, dan parameter NH3-N turun hingga 47% pada bulan Agustus dan dan 55% pada September 2019.  Efisiensi Penyisihan setiap parameter meningkat kembali mencapai lebih 90% pada bulan Oktober 2019 sampai Desember 2019. Pada tahun 2020, dengan debit rata-rata 242, efisiensi penyisihan semua parameter mencapai lebih dari 95%.
Landfill design based on methane gas emission estimates at Jatibarang Final Disposal Site (TPA) in Semarang City using LandGEM 3.03 and its potential utilization as an energy source Sukma, Bayu; Kristanto, Gabriel Andari; Dahlan, Astryd Viandila
Indonesian Journal of Multidisciplinary Science Vol. 4 No. 5 (2025): Indonesian Journal of Multidisciplinary Science
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/ijoms.v4i5.1092

Abstract

This study aims to analyze the landfill design based on the estimated methane gas emissions at the Jatibarang Landfill, Semarang City, using the Landfill Gas Emissions Model (LandGEM) software version 3.03 and evaluate its potential utilization as an energy source. The study uses a quantitative approach utilizing mathematical modeling to estimate the estimated gas emissions from the landfill. The results show that the potential for electrical energy that can be generated from landfills is high enough to be recommended for management using the concept of Waste to Energy (WTE) into electrical energy. The recommendation that will be discussed is the management of methanogas emissions by being used as electrical energy, emphasizing infrastructure improvements for optimal energy production and reducing greenhouse gas emissions. This study could also incorporate real-time monitoring of gas emissions and energy production to better understand the dynamics of waste decomposition and the benefits of electricity generated from waste could foster community support for PLTSa initiatives.
The contribution of waste management to GHG emission reduction in urban areas (Case study of Jongkong Landfill, Bangka Tengah Regency, Bangka Belitung Islands Province) Della, Sevia; Kristanto, Gabriel Andari; Dahlan, Astryd Viandila
Indonesian Journal of Multidisciplinary Science Vol. 4 No. 5 (2025): Indonesian Journal of Multidisciplinary Science
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/ijoms.v4i5.1093

Abstract

This study aims to evaluate the potential of various waste management scenarios to reduce greenhouse gas (GHG) emissions in urban settings, focusing on the Jongkong landfill in Bangka Tengah Regency, Indonesia. The methodology involved collecting data on waste generation, composition, and current practices from municipal records, categorizing municipal solid waste (MSW) into organic, plastic, and other waste types. Four waste management scenario scenarios were modeled: the Business as Usual (BAU) scenario, which reflected current disposal practices, a Biological Scenario that processed organic waste through anaerobic decomposition to produce biogas, and a thermal scenario that utilized pyrolysis for plastic waste to recover energy. The combined scenario showed the best emission efficiency with the lowest net emission value, which is 10,436.22 kg CO2 eq per year, compared to other scenarios. The biological scenario showed a better net emission than the existing one (17,467,402.15 kg CO2/year), supported by the application of anaerobic digestion (AD) which helps reduce emissions. The thermal scenario also showed good performance by generating net emissions of 2,645,866.25 kg CO2-eq/year, driven by the contribution of pyralysis and the reduction of emissions from open burning and indiscriminate disposal. This study not only enhances understanding of GHG emission reduction strategies but also contributes to the development of tailored waste management policies that can be implemented in similar urban contexts. This novel approach highlights the synergistic benefits of combined waste treatment technologies, offering actionable insights for policymakers and contributing localized data to enhance sustainable waste management practices in Indonesia.
Estimation of Greenhouse Gas (GHG) emissions in waste management in Pekanbaru City, Indonesia Hilal, Zia Ru`ya; Kristanto, Gabriel Andari; Dahlan, Astryd Viandila
Indonesian Journal of Multidisciplinary Science Vol. 4 No. 5 (2025): Indonesian Journal of Multidisciplinary Science
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/ijoms.v4i5.1094

Abstract

Municipal waste production in Indonesia is rapidly increasing due to population growth and economic development, contributing significantly to greenhouse gas (GHG) emissions. This research aims to develop effective waste management scenarios for Pekanbaru City, focusing on reducing GHG emissions through integrated treatment methods. Employing a comprehensive methodology, the study estimates GHG emissions from various waste management practices, including biological, thermal, and mixed methods. The research utilizes a basic model to calculate emissions based on activity data and emission factors, exploring current practices and innovative strategies like Black Soldier Fly (BSF) larvae for organic waste treatment. Findings reveal that the Mix scenario, which combines multiple waste management processes, results in the most significant reduction of GHG emissions, achieving a net emission of 112,985.89 tons of CO?-eq/year, compared to the existing scenario with 637,864.33 tons of CO?-eq/year. The study identifies key emission hotspots, emphasizing the need for improved management of organic waste through composting and recycling. The implications of this research highlight the importance of adopting integrated waste management strategies to mitigate GHG emissions effectively. The findings provide actionable insights for policymakers, promoting sustainable practices aligned with the 3R hierarchy (reduce, reuse, recycle) and supporting targeted interventions that can enhance environmental sustainability in urban settings.
EVALUASI PENGELOLAAN LIMBAH BAHAN BERBAHARA BERACUN (B3) PADA BENGKEL DI WILAYAH JAKARTA Dahlan, Astryd Viandila; Mursidik, Setyo Sarwanto; Rinjani, Cholisa Amalia Putri; Luthfi, Muhammad Rifaldi; Nurlaily, Salma
Jurnal Reka Lingkungan Vol 11, No 3 (2023)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekalingkungan.v11i3.234-245

Abstract

 AbstrakBengkel kendaraan bermotor sebagai penyedia jasa perbaikan maupun perawatan kendaraan bermotor berpotensi menimbulkan limbah berbahaya dan beracun (B3). Banyaknya jumlah dan variasi perawatan kendaraan ini tentu berpengaruh terhadap total jumlah limbah yang ditimbulkan oleh bengkel. Oleh karena itu, evaluasi pengelolaan limbah berbahaya di bengkel kendaraan bermotor sangat penting. Penelitian ini bertujuan untuk mengidentifikasi dan mengkarakterisasi komponen limbah berbahaya, mengamati praktik pengelolaan saat ini, dan mengusulkan metode pengelolaan limbah yang tepat. Enam bengkel sepeda motor dan tiga bengkel mobil di Jakarta menjadi sampel pada penelitian ini. Jenis limbah berbahaya (B3) yang terindentifikasi pada bengkel kendaraan bermotor meliputi kain bekas, minyak bekas, botol limbah, botol pendingin bekas, dan suku cadang bekas, dengan berat total berkisar antara 0,54 kg/unit/hari hingga 0,83 kg/unit/hari. Namun, praktik pengelolaan limbah berbahaya dan beracun di bengkel-bengkel ini belum sepenuhnya sesuai dengan Peraturan Menteri Lingkungan Hidup No. 6 tahun 2021. Tindakan rekomendasi perbaikan diperlukan untuk mengatasi masalah ini dan melindungi kesehatan manusia serta lingkungan.Kata kunci: limbah B3, limbah bengkel, Indonesia, JakartaAbstractVehicle workshops as providers of vehicle repair and maintenance services have the potential to generate hazardous and toxic waste. The large number and variety of vehicle maintenance certainly influence the total waste generated by the workshops. Therefore, assessing hazardous waste management in vehicle workshops is vital. The study aims to identify and characterize hazardous waste components, observe current management practices, and propose proper waste management methods. Six motorcycle and three car repair shops in Jakarta were examined. Hazardous waste types found in all vehicle workshops include used cloth, waste oil, bottles, coolant bottles, and used auto parts, with average waste generated ranging from 0.54 kg/unit/day to 0.83 kg/unit/day. Despite the findings, it is evident that the hazardous and toxic waste management practices in these repair shops do not fully comply with The Minister of Environment and Forestry Regulation No. 6 of 2021. Urgent action is needed to address these issues and safeguard human health and the environment.Keywords: Hazardous waste, waste vehicle workshops, Indonesia, Jakarta.
Environmental Impacts Potential of Natural Gas Production Through Life Cycle Assessment Afghani, Akmal Al; Pratama, Mochamad Adhiraga; Dahlan, Astryd Viandila
Journal of Materials Exploration and Findings Vol. 3, No. 2
Publisher : UI Scholars Hub

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

Abstract

Life cycle assessment (LCA) is a methodology used to evaluate potential environmental impacts in various industry sectors, including the oil and gas industry to quantify the environmental impacts and determine the processes that have significant impacts along their production cycle. This environmental impact study adheres to ISO 14040:2016 and 14044:2017 standards, using the ReCiPe methodology within a gate-to-gate scope to analyze potential environmental impacts of 1 MMSCFD natural gas production. The impact categories analyzed in this study are Global Warming Potential (GWP), Particulate Matter Formation (PM), Ozone Formation (OF), and Terrestrial Acidification (TA). The results of this study identified several activities and processes in production cycle that can be categorized as hotspots: (1) Emissions from the Waste Heat Boiler and Thermal Oxidizer process to oxidize acid and permeate gas, (2) Emissions from the electricity generator unit, (3) Emissions from the compressor unit, and (4) Emissions from flaring activities related to safety operations. The quantified impacts of each category are GWP (3,555 kg CO2-eq), PM (0.52 kg PM2.5-eq), OF (3.36 kg NOx-eq), and TA (1.72 kg SO2-eq). This study maps the environmental impacts of natural gas production cycle, helping to identify further improvements for reducing potential environmental impacts.
Sustainable Recovery of SiO₂, Al₂O₃, and MgO from Slag, Aluminum Cans, and Bittern Sukma, Vinda Avri; Dahlan, Astryd Viandila; Sudibyo, Sudibyo; Wulandari, Yeni Ria; Ramandani, Adityas Agung
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 1 (2025): March 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i1.47-58

Abstract

This study investigates the utilization of solid waste from slag and aluminum cans as sources of valuable raw materials, along with bittern waste for magnesium oxide (MgO)cons production. Slag, a byproduct of industrial combustion in the palm oil industry, and aluminum cans, generated from human consumption in urban areas, were both subjected to leaching processes to recover silica (SiO₂) and alumina (Al₂O₃), respectively. The leaching of slag using 4 M NaOH yielded 85.68% SiO₂, while aluminum cans treated with 4 M HCl produced 85.90% Al₂O₃. Additionally, the study extracted MgO from bittern waste via precipitation, resulting in 76.98% MgO. X-ray fluorescence (XRF) analysis was employed used to determine the composition of the slag, aluminum can waste, and bittern, while X-ray diffraction (XRD) analysis confirmed the crystallinity of the recovered materials. The integration of recycled materials into the production of cordierite ceramics represents an innovative approach to waste valorization, offering potential for the development of advanced materials from industrial and urban waste. This research highlights the potential for valorizing industrial and municipal solid wastes through chemical processes, contributing to sustainable resource recovery and environmental conservation.
Pyrolytic Conversion of Palm Kernel Shells To Biochar and Comparative Insights with Incineration and Gasification for Environmental Sustainability Dewi, Shafira Quamila; Dahlan, Astryd Viandila; Hartono, Djoko M.
Indonesian Journal of Multidisciplinary Science Vol. 5 No. 3 (2025): Indonesian Journal of Multidisciplinary Science
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/ijoms.v5i3.1224

Abstract

The palm oil industry produces large volumes of palm kernel shell (PKS) solid waste, most of which has been utilized as biomass, but some of which has the potential to increase greenhouse gas emissions if not managed optimally. Pyrolysis of PKS to biochar offers a sustainable solution to reduce environmental impacts while producing value-added products. This study aims to compare various pyrolysis methods and operational conditions used in the conversion of PKS and other palm oil wastes, and to identify the main results, applications, and environmental benefits of each approach. The findings of this study are that the optimal conditions for biochar production are slow pyrolysis (400–600°C, 30–90 minutes residence time) with a yield of 33–52%. Biochar can be applied in Soil Improvement and Agriculture Increasing soil fertility and carbon sequestration (CSP 0.63 kgCO?/kg PKS), Air Treatment and Pollutant Adsorption, Energy and Fuel (made into briquettes), Health and Safety (Reducing environmental toxicity), Industrial and Material Applications (Raw material for activated carbon production). Comparing to inceneration and gasification, pyrolysis of PKS offers superior environmental sustainability when biochar is sequestered or utilized in high-value applications. Its dual benefits of renewable energy recovery and carbon storage address both immediate energy needs and long-term climate change mitigation.
Co-Authors Afghani, Akmal Al Della, Sevia Dewi, Shafira Quamila Djoko M Hartono Gabriel Andari Kristanto GABRIEL ANDARI KRISTANTO Hilal, Zia Ru`ya Indradewa, Rhian Kautsar, Muhammad Lian Luthfi, Muhammad Rifaldi Muhammad Lian Kautsar Mursidik, Setyo Sarwanto NINDI SEKARSARI Nurlaily, Salma Pratama, Mochamad Adhiraga Rajagukguk, Vania Larissa Ramandani, Adityas Agung Rinjani, Cholisa Amalia Putri Sudibyo Sudibyo Sukma, Bayu Sukma, Vinda Avri