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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Ilmu Lingkungan Jurnal Dampak IJHCM (International Journal of Human Capital Management) Jurnal Serambi Engineering Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Jurnal Profesi Insinyur Indonesia JURNAL REKAYASA KIMIA & LINGKUNGAN

Budi Prasetyo Samadikun

Dept. Of Environmental Engineering, Faculty Of Engineering, Diponegoro University

Author-ID : 369536

Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Social Sciences Transportation

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Analysis and Evaluation of West Semarang Distribution Pipe Network System Municipal Waterworks in Semarang City Bernadinus Gunawan Broto Miseno; Budi Prasetyo Samadikun; Anik Sarminingsih
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 1 (2022): March 2022
Publisher : Universitas Diponegoro

The need for clean water is related to the growth rate and population density. High population density affects access to clean water. The population in the DWSS (Drinking Water Supply System) area of West Semarang is concentrated in three sub-districts, namely West Semarang (148,879 people), Ngaliyan (141,727 people), and Tugu (32,822 people). With the average population growth rate of Semarang City from 2011 to 2020 of 0.89%, the need for clean water will continue to increase. The condition of clean water services in Semarang City, which Municipal Waterworks manage, needs to be improved, both in terms of coverage and continuity of service distribution. The research method used is the method of field research and literature. Hydraulic data retrieval was obtained through field observations and water usage data from the internal Municipal Waterworks in Semarang City. The data were analyzed using the epanet program. From the analysis results, there were areas with significant differences in water pressure values , and at peak hours, there were areas that did not get sufficient water supply. It can be concluded that there are problems in the piping network in the West Semarang DWSS area.

Land Use Changes Impact Analysis to Surface Runoff in Kalibenda Village Choirul Basyar; Muhammad Arief Budihardjo; Budi Prasetyo Samadikun
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 3 (2021): November 2021
Publisher : Universitas Diponegoro

The rainwater that reaches the ground will enters the soil (infiltration) and some water are not absorbed by the soil will become surface runoff. The regional development tends to change water catchment areas by changing land functions and affecting surface runoff. The regional development in Kalibenda Village has cause problems related to the local community water supply. In 2019 some of the local community in Kalibenda Village have experienced difficulties in accessing clean water supply which has never happened in the past . This study provides an analyze of the impact of land use changes that occur in Kalibenda Village on surface runoff. This study uses a Rational method to calculating runoff discharge by using elevation profile analysis tool from Google Earth program to calculated sloop, Approb_4.1 program to process rain data and ArcSwat Tools in the ArcMap 10.2 program to water catchment analysis. The study results shows that Kalibenda Village divided into 6 (six) catchment water. There has been increased runoff from 2000 to 2021 by 6.44%. The most influential factors are changes in land cover change from rice fields to settlements, plantations and meadow grass.

Organic Solid Waste Management by Producing Eco-Enzymes from Fruit Skin in Permata Tembalang Budi Prasetyo Samadikun; Sudarno Sudarno; Yustina Metanoia Pusparizkita; Nurandani Hardyanti; Fathan Syahreza Pratama; Rahayu Puji Safitri
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 1 (2023): March 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i1.21-30

The Ministry of Environment and Forestry in 2020 estimates that waste dumps in Indonesia will be 67.8 million tons. However, organic waste management in Indonesia is still relatively low. The accumulation of organic waste in the landfill, which usually causes unpleasant odors and potentially cause an explosion due to the production of methane gas from natural decomposition processes, can be avoided by prioritizing waste management from the source. An alternative way to handle organic waste is make eco-enzymes because it is efficient, economical, and environmentally friendly. This is the focus of the community service team. The community service method is carried out in three stages, including the preparation stage, the implementation stage, and the final stage. The preparation stage consists of doing a module for sorting organic waste and its utilization (making eco-enzymes). The next phase consists of socialization, education, and training on sorting organic waste and making the right eco-enzymes. The final stage consists of evaluation and making a final report. The expected result after education, socialization, or training has been carried out by the community service team, the community members, especially RT 04 RW 05 Permata Tembalang, know better and understand the sorting and utilization of organic waste.

Safety Planning and Safety Control on Safety Performance Ardhianto Gutomo Wisnupradhono; Muhammad Agung Wibowo; Budi Prasetyo Samadikun; Nurandani Hardyanti; Silviana; Sri Sumiyati
IJHCM (International Journal of Human Capital Management) Vol 7 No 1 (2023): (IJHCM) International Journal of Human Capital Management
Publisher : Program Studi S3 Ilmu Manajemen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/IJHCM.07.01.6

This study analyzes the influence of safety planning and safety control on safety performance. This study uses primary data from a survey using a questionnaire with a Likert scale of 1 to 5. This study uses 4,950 observational data with structural equation modeling analysis. This study uses safety planning and safety control as the independent variables and safety performance as the dependent variable. The results of this study indicate that safety planning has no significant effect on safety performance. Safety controls have a direct and significant effect on safety performance. This research is the first time in Indonesia to analyze the effect of safety planning and safety control on safety performance in building construction projects.

Identifikasi dan Analisis Manajemen Risiko pada Pekerjaan High Rise Building Studi Kasus: Proyek Pembangunan Gedung Penunjang Siaran dan Studio Luar Negeri Novianto, Deny; Nugroho, Agung; Samadikun, Budi Prasetyo
Jurnal Profesi Insinyur Indonesia Vol 1, No 7 (2023): JPII
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpii.2023.23855

Manajemen risiko merupakan salah satu bagian penting dari manajemen proyek. Terkait hal ini, PMBOK menjelaskan bagaimana cara menerapkan manajemen risiko proyek, mulai dari perencanaan risiko proyek, identifikasi risiko, analisis risiko kualitatif, analisis risiko kuantitatif, perencanaan respon risiko, penerapan respon risiko hingga pemantauan risiko. Dalam Proyek Pembangunan Gedung Siaran dan Studio Siaran Luar Negeri dengan waktu pelaksanaan 390 hari kalender, identifikasi risiko diperoleh dari work breakdown structure yang kemudian diturunkan kembali menjadi risk breakdown structure sehingga diketahui risiko-risiko yang mungkin akan muncul berdasarkan masing-masing kategori risiko yang ditelaah. Risiko-risiko tersebut dimitigasi dan dianalisis biaya serta metode pelaksanaannya sehingga diperoleh nilai dampak yang paling minimal namun dengan waktu pelaksanaan yang cepat dan tidak merugikan pelaksanaan pekerjaan yang lainnya. Risiko yang akan dianalisis adalah risiko berupa ancaman maupun risiko berupa peluang. Dari hasil analisis akan diperoleh jenis-jenis risiko yang perlu mendapatkan perhatian khusus dan dikaitkan dengan besarnya biaya risiko yang perlu dicadangkan. Adapun hasil analisis manajemen risiko yang telah dilakukan akan disampaikan menjadi masukan bagi perusahaan dan dijadikan sebagai lessons learned yang dapat digunakan oleh perusahaan untuk melakukan kajian risiko dengan tipe proyek serupa.. Kata kunci: manajemen risiko, identifikasi, analisis pengendalian risiko, strategi mitigasi

Manajemen Sumber Daya Dalam Percepatan Pembangunan Hunian Tetap (Huntap) Pascabencana Longsor dan Banjir di Pulau Serasan (Pulau Terluar Indonesia) Saputra, Mohamad Handri; Susanty, Aries; Samadikun, Budi Prasetyo
Jurnal Profesi Insinyur Indonesia Vol 2, No 1 (2024): JPII
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpii.2024.23919

Bencana tanah longsor yang terjadi pada Maret 2023 menyebabkan kerusakan rumah warga dan korban jiwa yang terjadi di Kecamatan Serasan, Kabupaten Natuna, Provinsi Kepulauan Riau. Kementerian Pekerjaan Umum dan Perumahan Rakyat (PUPR) menunjuk PT Adhi Karya sebagai kontraktor pelaksana menjalankan tugasnya untuk menangani pekerjaan tersebut untuk mempercepat penanganan bencana longsor. Menteri Basuki mengatakan, prioritas penanganan rehabilitasi dan rekonstruksi pascabencana longsor adalah relokasi permukiman warga. Relokasi dilakukan melalui pembangunan hunian tetap (huntap) yang lahannya disediakan oleh pemerintah daerah. Suatu proyek berupaya dengan mengarahkan sumber daya yang tersedia yang diorganisasikan untuk mencapai tujuan, sasaran dan harapan penting tertentu. Proyek harus terselesaikan dalam jangka waktu terbatas sesuai dengan kesepakatan. ADHI melalui Huntap dengan teknologi rumah khusus tahan gempaatau disebut Rumah Instan Sederhana Sehat (RISHA) tersebut ditargetkan siap digunakan pada akhir Juni 2023. Hal tersebut dikarenakan RISHA menggunakan metode knock down/merangkai komponen dalam mendirikan RISHA yang relatif cepat. Rehabilitasi dan rekonstruksi pada wilayah terdampak bencana di Kepulauan Natuna tidak hanya membangun kembali rumah yang rusak, tetapi membangun permukiman baru yang lebih aman dan tangguh terhadap bencana (build back better). Relokasi bagi 100 rumah warga terdampak penting dilakukan karena berada di zona merah kerentanan tinggi terhadap bencana longsor. Maka strategi manajemen dalam mengelola sumber daya yang mencakup mobilisasi dan demobilisasi, bahan, peralatan, tenaga kerja dengan waktu pelaksanaan yang cukup menantang hanya dengan waktu 3 bulan di lokasi Pulau Serasan yang merupakan pulau terluar Indonesia dengan tetap memperhatikan biaya konstruksi bangunan yang efisien tepat mutu dan tepat waktu. Kata kunci: HUNTAP Serasan, manajemen, sumber daya

Perencanaan Sistem Pengangkutan Sampah Kecamatan Ngaliyan, Kota Semarang dengan Mengintegrasikan Analisis GIS dan Lalu Lintas Arumdani, Indah Sekar; Sumiyati, Sri; Samadikun, Budi Prasetyo
Dampak Vol 19, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.19.2.66-72.2022

Ngaliyan District, which is located in Semarang City, had a population of 162.622 in 2020, and its citizens multiply these couple of years. This rapid increase in population complies with waste production. However, the total amount of waste in 10 garbage dumps that go to the waste landfills is only 103,6 m3/day from the total amount of 270,98 m3/day. As a result, the percentage of waste transportation services in Ngaliyan District is only 32,8%. This phenomenon can occur because some garbage dumps have excessive generations. This study aims to plan an optimal waste transportation system so that costs incurred are more efficient. The condition of the road, traffic, and vehicle's speed of the waste transportation routes can influence the waste transportation time. Optimization method were using traffic counting and Network Analyst in GIS application. The lowest degree of road’s saturation at 05.00 - 12.00, which was the optimal transportation time. The optimal vehicle speed was gained from the degree of saturation, which was 49.8 km/hour, so the number of trips increases to 22 rits/day, with 18 containers and an average remaining working time of 2.11 hours. The percentage of the services increased to 62%, and the waste that went to the waste landfills become 168 m3. Vehicle operating costs that were calculated using the PIC method increased to IDR 1,870,555,843.46/ year. However, there was a decrease in the retribution cost to IDR 18,794/ family/ month because of the growth in the number of people served. Keywords: Optimization, waste transportation, GIS, traffic, vehicle operational costA B S T R A KKecamatan Ngaliyan yang terletak di Kota Semarang berpenduduk 162.622 jiwa pada tahun 2020, dan penduduknya berlipat ganda beberapa tahun ini. Pertambahan penduduk yang pesat ini sejalan dengan produksi sampah. Namun, total sampah di 10 TPA yang masuk ke TPA sampah hanya 103,6 m3 /hari dari total 270,98 m3 /hari. Akibatnya, persentase pelayanan pengangkutan sampah di Kecamatan Ngaliyan hanya 32,8%. Fenomena ini dapat terjadi karena beberapa tempat pembuangan sampah memiliki generasi yang berlebihan. Penelitian ini bertujuan untuk merencanakan sistem pengangkutan sampah yang optimal agar biaya yang dikeluarkan lebih efisien. Kondisi jalan, lalu lintas, dan kecepatan kendaraan pada jalur pengangkutan sampah dapat mempengaruhi waktu pengangkutan sampah. Metode optimasi menggunakan penghitungan trafik dan Network Analyst pada aplikasi GIS. Derajat kejenuhan jalan terendah pada pukul 05.00 - 12.00 merupakan waktu transportasi yang optimal. Kecepatan kendaraan optimal diperoleh dari derajat kejenuhan yaitu 49,8 km/jam, sehingga jumlah trip meningkat menjadi 22 rit/hari, dengan 18 peti kemas dan rata-rata sisa waktu kerja 2,11 jam. Persentase pelayanan meningkat menjadi 62%, dan sampah yang masuk ke TPA menjadi 168 m3 . Biaya operasional kendaraan yang dihitung dengan metode PIC meningkat menjadi Rp 1.870.555.843,46/tahun. Namun terjadi penurunan biaya retribusi menjadi Rp 18.794/KK/bulan karena pertumbuhan jumlah masyarakat yang dilayani. Kata Kunci: Optimalisasi, pengangkutan sampah, GIS, lalu lintas, biaya operasional kendaraan

Analysis of Greenhouse Gas Emission Load and Emission Reduction from Switching to Electric Vehicles: A Case Study of Java Island Wicaksono, Surya Adi; Huboyo, Haryono Setiyo; Samadikun, Budi Prasetyo; Joyosemito, Ibnu Susanto
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.773-792

In order to mitigate the impact of climate change arising from Greenhouse Gas (GHG) emissions generated from the transportation sector, many countries including Indonesia, have initiated to develop policies to encourage environmentally friendly transportation technologies. Electric vehicles represent a highly sustainable alternative when compared to conventional vehicles. This study aims to assess the potential reduction of GHG emissions from the shifting to electric vehicle utilization on Java Island. The research method was conducted by modeling conventional vehicles until 2033 where there was a transition to electric vehicles throughout the model year and then calculating the GHG emission. This study employs three scenarios : Business As Usual (BAU), Electric Vehicle Plan (EVP) with existing scenario power plant and Electric Vehicle Plan (EVP) with National Energy Plan (NEP) scenario power plant. Model results revealed potential GHG emission reductions within 12.11% from the Existing EVP scenario and 12.54% from the NEP scenario against the BAU scenario due to the shifting usege of electric vehicles on Java island. Based on the model results, it is possible to determine that shifting from conventional vehicles to electric vehicles can reduce GHG emissions from conventional vehicle use.

Analysis of Cumulative Energy Demand Potential Using Life Cycle Assessment Approach: A Case Study of XYZ Laboratory Samadikun, Budi Prasetyo; Syafrudin, Syafrudin; Wahyuni, Retno Hari
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.894-906

Environmental issues such as ecosystem damage, degradation and climate change require effective environmental management strategy. This study analyzes the cumulative energy demand (CED) potential of the XYZ Laboratory activities using a Life Cycle Assessment (LCA) approach. The LCA methodology, adhering to ISO 14040 and ISO 14044 standards, encompasses goal and scope definition, inventory analysis, impact assesment, and interpretation. Data were collected from XYZ Laboratory's activities during 2023, focusing on four main process units: sample administration, fulfillment of testing laboratory conditions, sample preparation, and instrumentation analysis. The environmental impact of CED was characterized using OpenLCA version 2.0 software with the Ecoinvent database and then calculated using a spreadsheet. The result is XYZ Laboratory have a significant environmental impact. The instrumentation analysis stage and sample preparation stage are the two highest potential impacts of CED with a contribution of 52.559 MJ per analysis service (50.948%) and 35.970 MJ per analysis service (34.867%).The study concludes that significant efforts are required to reduce energy use and environmental impact, suggesting techniques such as good housekeeping, input change, better process control, technology change, on-site reuse and recycling, and production of useful by-products. These strategies aim to enhance energy efficiency of laboratory operations.

Assimilative Capacity of Air Pollutants Using Emission Inventory and Dispersion Model Huboyo, Haryono Setiyo; Samadikun, Budi Prasetyo; Manullang, Okto Risdianto; Khasanah, Nurul
Jurnal Rekayasa Kimia & Lingkungan Vol 20, No 1 (2025): Jurnal Rekayasa Kimia & Lingkungan (June, 2025)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v20i1.43810

Air pollution in urban areas will increase along with increasing population activity. This study, with the location of Magelang Regency, examines the carrying capacity and capacity of air pollution. The study began with the identification of emission inventories for transportation, household, waste burning and industrial activities. The results of the inventory were used to examine the distribution of air pollutants. The results of the emission inventory in Magelang Regency showed that the transportation sector was the dominant contributor of emissions compared to the waste, household and industrial sectors with an emission load of 2-3.5 times higher. The transportation sector contributes dominantly to the NO2 parameter (94%) and PM parameter (72%), with a relatively similar contribution to the industrial sector in the SO2 parameter (40%). Dispersion modeling showed that the distribution of emissions was even throughout Magelang Regency and showed an accumulation of emissions, especially for the NO2 parameter which was centered on the arterial and collector road networks. When compared to the Ambient Air Quality Standard in Indonesia, the maximum concentration values for SO2, NO2 and PM parameters are still below the quality standard. However, the NO2 parameter needs to be considered because its concentration value has reached 75% of AAQS. Based on environmental carrying capacity, Tegalrejo, Mungkid and Mertoyudan sub-districts are still in good condition, while Secang and Tempuran sub-districts need to carry out mitigation and emission reduction efforts so that air quality is maintained because the air quality index shows moderate and unhealthy quality respectively

Co-Authors Adinda Putra Yuwono Adinda Ragil Saputri Anik Sarminingsih, Anik Ardhianto Gutomo Wisnupradhono Aries Susanty Arumdani, Indah Sekar Arya Rezagama Atiya Nurul Jusihdani, Atiya Nurul Bakti Setiawan Bernadinus Gunawan Broto Miseno Choirul Basyar Clarisca, Vio Alma Dea Wijayanti Didin Agustian Permadi Dwi Siwi Handayani Erina Dwi Rumanti Fathan Syahreza Pratama Haryono Setiyo Huboyo Haryono Setiyo Huboyo Joyosemito, Ibnu Susanto Laksana, Muhamad Permana Marcal de Araujo Pereira Babo Martins Mochtar Hadiwidodo Muhammad Agung Wibowo Muhammad Arief Budihardjo Novianto, Deny Nugroho, Agung Nurandani Hardyanti Nurul Khasanah, Nurul Okto Risdianto Manullang Pertiwi Andarani Pramesti, Ajeng Lakshita R. Rijanta Rahayu Puji Safitri Rahmawati, Fauziyah Ramadan, Bimastyaji Surya Ratna Kustanti Saputra, Mohamad Handri Silviana Sri Sumiyati Sudarno Sudarno Sudarno Sudarno Sudibyakto Sudibyakto Syafrudin Syafrudin Wahyuni, Retno Hari Wicaksono, Surya Adi Wiwandari Handayani Yustina Metanoia Pusparizkita Zumrotus Sa'adah

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