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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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Evaluasi Efisiensi Kinerja Alat Pengendali Partikulat Cyclone dan Wet Scrubber Unit Paper Mill 7/8 PT. Pura Nusapersada Kudus Rahmawati, Fauziyah; Samadikun, Budi Prasetyo; Hadiwidodo, Mochtar
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 17, No 2 (2020): Juli 2020
Publisher : Universitas Diponegoro

Kebutuhan yang semakin meningkat sejalan dengan tingginya permintaan pasar terhadap suatu produk. Salah satu produk yang banyak digunakan yaitu kertas. Salah satu industri kertas daur ulang adalah PT. Pura Nusapersada Unit Paper Mill 7/8 dimana proses produksinya menggunakan uap air dari boiler yang berbahan bakar batubara. Proses tersebut berpotensi menghasilkan ash yang dapat mencemari udara sehingga diperlukan alat pengendali pencemar udara seperti cyclone dan wet scrubber. Diperlukan evaluasi terhadap efisiensi cyclone dan wet scrubber dengan mengetahui spesifikasi dan prinsip kerja alat, emisi yang dihasilkan, efisiensi alat, faktor yang mempengaruhi, permasalahan, operasi, dan pemeliharaannya. Metode yang digunakan yaitu pengamatan secara langsung, wawancara, data berupa dokumen, referensi, dan laporan rutin. Cyclone yang digunakan berjenis multicyclone dan wet scrubber berjenis venturi scrubber. Dari perhitungan yang telah dilakukan, didapatkan efisiensi Boiler Hitachi 94,195% dan Boiler Hamada II 96,844%. Boiler tersebut menghasilkan emisi yang telah memenuhi baku mutu Peraturan Menteri Lingkungan Hidup Nomor 07 Tahun 2007. Perhitungan efisiensi sebaiknya setahun sekali agar kualitas alat terpantau dan tidak mencemari kualitas udara di sekitarnya.

Pengelolaan Limbah Padat Bahan Berbahaya dan Beracun (B3) Medis RS Bhayangkara Tk. I Raden Said Sukanto Clarisca, Vio Alma; Samadikun, Budi Prasetyo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 17, No 1 (2020): Maret 2020
Publisher : Universitas Diponegoro

The hospital is one of the objects that has a major role in contributing medical waste, Â where the waste is classified as hazardous and toxic waste. Medical waste that not treated properly will bring nosocomial disease to humans and pollute the environment. For this reason, waste management is very needed. Medical waste produced by Bhayangkara Hospital Tk. I Raden Said Sukanto came from patient care rooms and medical support rooms. The amount of medical hazardous and toxic waste generated in January 2020 was 16.866 kg which included infectious, pharmaceutical, chemical and sharps waste. Medical hazardous and toxic solid waste management in Bhayangkara Tk. I Raden Said Sukanto Hospital includes reduction, packaging, symbol and labeling, storage, transportation, and processing. Bhayangkara Tk. I Raden Said Sukanto Hospital is guided by government regulations that forced in Indonesia. However, there was still some discrepancies between the existing conditions and regulations caused by the lack of adequate Human Resources.

Pengaruh Pendampingan Masyarakat dalam Pemilahan Sampah di Desa Pucung Kecamatan Tirto Kabupaten Pekalongan Samadikun, Budi Prasetyo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 15, No 1 (2018): Maret 2018
Publisher : Universitas Diponegoro

Potential problems in household waste management are still found, especially in residential areas. Pucung Village, Tirto District Pekalongan Regency with a population of 3.347 people, is one example of a village that has not implemented waste management properly. The availability of inadequate trash can be one of the factors that causes the waste has not been well managed in this village. This community assistance activity aims to educate and encourage the community to be self-sufficient in waste management, especially in waste sorting. According to the recommendations of Pucung Village Government, this community assistance activity is centered in RT 04 RW 01 area as an embryo or pilot project to be implemented in all Pucung Village area. The methods used are survey, socialization, simulation, and post-socialization follow-up. The residents are quite enthusiastic and appreciative towards this activity, shown by the attendance rate of more than 60% during socialization and conducive discussion. The results of post-socialization evaluation indicate that people have started to realize in managing waste, indicated by the separated garbage in a different trash can at their residenceKeywords:Â accompaniment, sorting, waste, Pucung

Tinjauan Nilai Manfaat pada Pengelolaan Sampah Plastik Oleh Sektor Informal (Studi Kasus: Kecamatan Purwodadi, Kabupaten Grobogan) Ratna Kustanti; Arya Rezagama; Bimastyaji Surya Ramadan; Sri Sumiyati; Budi Prasetyo Samadikun; Mochtar Hadiwidodo
Jurnal Ilmu Lingkungan Vol 18, No 3 (2020): November 2020
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.18.3.495-502

Penggunaan kembali material limbah dengan cara mendaur ulang merupakan salah satu cara efektif untuk menghindari pencemaran lingkungan dan mengurangi volume timbulannya di Tempat Pembuangan Akhir. Penelitian ini dilakukan untuk mengetahui potensi ekonomi kegiatan daur ulang sampah plastik oleh sektor informal di Kecamatan Purwodadi. Penelitian dilakukan melalui survei menggunakan kuesioner terhadap 29 pelaku daur ulang. Hasil penelitian menunjukkan bahwa potensi ekonomi yang terdapat dalam usaha daur ulang sampah plastik pada tiap tingkatan pelaku daur ulang berbeda-beda. Berdasarkan analisis kelayakan ekonomi menggunakan nilai Net Present Value (NPV), Benefit Cost Ratio (BCR), dan Internal Rate of Return (IRR) dapat disimpulkan bahwa usaha daur ulang tingkat penggiling layak secara ekonomi dengan nilai NPV Rp 923.395.260 (NPV > 1), nilai BCR 1,58 (BCR > 1), dan nilai IRR 56,82. Benefit (manfaat) dari implementasi program 3R sampah plastik pada sektor informal secara umum dapat digolongkan menjadi dua manfaat, yaitu manfaat langsung (direct benefit) dan manfaat tidak langsung (indirect benefit). Manfaat langsung (direct benefit) berupa keuntungan penjualan sampah plastik. Keuntungan bersih tiap jenis sampah plastik pada tingkat pemulung antara Rp 500-Rp 2.600, tingkat bank sampah berkisar antara Rp 100-Rp 400, tingkat pengepul I berkisar antara Rp 91,67-Rp 391,67, tingkat pengepul II berkisar antara Rp 173,46-Rp 473,46, tingkat bandar berkisar antara Rp 186,94-Rp 686,94, dan tingkat penggiling berkisar antara Rp 136,23-Rp 1.136,32. Manfaat tidak langsung (indirect benefit) adanya pengelolaan sampah plastik oleh sektor informal yaitu tereduksinya sampah plastik di Kecamatan Purwodadi sebesar 10,08%.ABSTRACTRecycling of waste material is an effective way to eliminate environmental pollution and reduce the volume of its generation in landfills. This research purpose was to determine the economical potention of plastic waste recycling business by the informal sector in Purwodadi District. The research method by a questionnaire survey of 29 recycling actors. The results showed that the economical potention of the plastic waste recycling business at each level of the recycling actors was different. Based on the economic feasibility analysis using Net Present Value (NPV), Benefit Cost Ratio (BCR), and Internal Rate of Return (IRR), it can be concluded that recycling business at the grinder level is economically feasible with NPV value of Rp 923,395,260 (NPV> 1) , BCR value 1.58 (BCR> 1), and IRR value 56.82. The benefits of implementing the 3R plastic waste program in the informal sector can be classified into two benefits, there are direct benefit and indirect benefit. The direct benefit can be formed the profit from selling plastic waste. The net profit of each type of plastic waste at the scavenger level is about Rp 500-Rp 2,600, the level of waste bank about Rp 100-Rp 400, the level of collectors I about Rp 91.67-391.67, the level of collector II about Rp 173.46-Rp 473.46, the level of dealer about Rp 186.94-Rp 686.94, and the grinder level about Rp 136.23-Rp 1,136.32. The indirect benefit of plastic waste management by the informal sector is the reduction of plastic waste in Purwodadi District for about 10.08%.

Understanding Informal Actors Of Plastic Waste Recycling In Semarang City Budi Prasetyo Samadikun; Arya Rezagama; Bimastyaji Surya Ramadan; Pertiwi Andarani; Erina Dwi Rumanti
Jurnal Ilmu Lingkungan Vol 18, No 1 (2020): April 2020
Publisher : School of Postgraduate Studies, Diponegoro Univer

ABSTRAKKegiatan daur ulang sampah di Kota Semarang dapat dilakukan dengan cukup baik berkat campur tangan dari sektor informal. Sayangnya, kegiatan pengelolaan sampah formal tidak mempertimbangkan nilai pemulihan sampah. Penelitian ini bertujuan untuk mengidentifikasi aliran sampah plastik di sektor informal di Kota Semarang. Peneliti menggunakan wawancara mendalam untuk mengumpulkan data. Ada 46 agen daur ulang, termasuk lima (5) pemulung, 17 pengepul 20 perusahaan skala kecil, tiga (3) perusahaan skala besar, dan 1 perantara (pabrik penggilingan plastik) yang telah diwawancarai. Data dari Badan Lingkungan Hidup Kota Semarang digunakan sebagai data sekunder. Hasil penelitian menunjukkan bahwa jumlah sampah plastik yang dihasilkan oleh masing-masing agen daur ulang diperkirakan 23,98 kg/ hari di tingkat pemulung, 54,74 kg/ hari di tingkat pengepul, 347,48 kg / hari di tingkat perusahaan skala kecil, 1.735,3 kg / hari di tingkat perusahaan skala besar, dan 2.160 kg / hari di tingkat perantara. Produsen bijih plastik daur ulang berlokasi di luar Kota Semarang, sedangkan bank sampah berbasis masyarakat adalah bagian dari pengelolaan sampah berbasis masyarakat yang tidak mencari keuntungan. Oleh karena itu, tidak dibahas secara mendalam di penelitian ini.Kata kunci: sampah plastik, aliran sampah, agen daur ulangABSTRACTWaste recycling activities in Semarang City can be conducted quite well due to the interference of the informal sector. Unfortunately, the formal waste management activities do not consider the utilization of waste recovery value. This study aims to identify the flow of plastic waste in the informal sector in Semarang City. We used in-depth interviews to collect data. There are 46 recycling agents, including five (5) scavengers, 17 scrap dealers, 20 small scale enterprises, three (3) large scale enterprises, and 1 intermediate (plastic grinding mill) that has been interviewed. Data from The Environment Agency of Semarang City obtained as secondary data. The results showed that the amount of plastic waste generated by each recycling agent was estimated at 23.98 kg/day at the scavenger level, 54.74 kg/day at the scrap dealer level, 347.48 kg/day at the small scale enterprise level, 1,735.3 kg / day days at large scale enterprise level, and 2,160 kg/day at the level of plastic waste intermediates. Recycled plastic ore producers are located outside Semarang City, whereas the community-based waste bank is part of community based solid waste management that is not looking for profit. Hence, it is not discussed in depth in this study.Keywords: plastic waste, waste flow, recycling agent

EDUKASI BANK SAMPAH DALAM RANGKA MENINGKATKAN KINERJA SISTEM PENGELOLAAN PERSAMPAHAN KAWASAN PERUMAHAN PERMATA TEMBALANG KELURAHAN KRAMAS KOTA SEMARANG Budi Prasetyo Samadikun
Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Vol 1, No 3 (2019)
Publisher : Fakultas Teknik Universitas Diponegoro

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

Sebagaimana amanat UU no. 18 tahun 2008 bahwa sampah kawasan merupakan tanggung jawab pengelola kawasan masing-masing, dalam hal ini kawasan perumahan sebagai obyek pengabdian masyarakat. Perumahan Permata Tembalang sebagai salah satu kawasan perumahan yang berada di Kelurahan Kramas Kecamatan Tembalang Kota Semarang memiliki permasalahan pengelolaan persampahan dikarenakan sistem yang terbentuk tidak berjalan dengan baik. Selain itu ditunjang dengan rendahnya kesadaran warganya pada sampah. Metode pengabdian masyarakat yang dilakukan dalam rangka edukasi bank sampah dilakukan dalam tiga tahap, meliputi tahap persiapan, tahap sosialisasi dan aplikasi, serta tahap akhir. Sejak mulai proses edukasi awal, pembentukan bank sampah, proses pemilahan sampah di rumah masing-masing warga, sampai dengan pengumpulan sampah di Bank Sampah RT 04/ RW V, warga wilayah ini sangat antusias dalam mengikuti rangkaian kegiatan. Ini merupakan modal awal yang sangat baik untuk keberlanjutan bank sampah di RT 4/ RW V ini. Kata kunci : bank sampah, pengelolaan sampah, perumahan

Planning of Conventional Air Emission Reduction Strategy from the Transportation, Domestic, and Solid Waste Sector in Salatiga City Budi Prasetyo Samadikun; Nurandani Hardyanti; Dea Wijayanti; Zumrotus Sa'adah
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 2 (2022): July 2022
Publisher : Universitas Diponegoro

In 2020 Salatiga City has a population of 192,322 people with a population growth rate of 1.18%. The increase in population causes an increase in consumption needs, waste generation, and the number of vehicles due to increased population mobility. The purpose of this plan is to take an inventory of conventional air emissions in the transportation, domestic, and waste sectors and to plan strategies to reduce conventional air emissions in Salatiga City. The transportation sector emissions inventory is calculated using the Tier 2 method, while the domestic and solid waste sectors are calculated by multiplying activity data by emission factors. In the calculation of the capacity, the box model method is used and the SWOT analysis is used to determine the emission control strategy. The results of the inventory of conventional air emissions in the transportation sector for SOx are 121.06 tons/year, NOx is 2,615.51 tons/year, CO is 18,040.89 tons/year, and PM10 is 299.66 tons/year. Meanwhile for the domestic sector, SOx is 0 kg/year, NOx is 14,755.53 kg/year, CO is 4,070.86 kg/year, and PM10 is 190,326 kg/year. Then from the solid waste sector, SOx emissions were 3,653,071.85 g/year, NOx was 21,918,429.85 g/year, CO was 306,858.017.94 g/year, and PM10 was 219,184,298.53 g/year. . The results of the capacity calculation show that the City of Salatiga can still accommodate conventional air emissions for SOx, NOx, CO, and PM10. However, a reduction strategy is still needed to control air pollution. The strategic plan used is an increase in green open space by 20%, the development of an Intelligent Transportation System, emission testing of private vehicles, the substitution of LPG with biogas from organic waste and livestock manure, as well as community development for waste reduction and optimization of waste facilities.

Bus Rapid Transport System in Semarang City: Views of Current Users, Potential Users and Related Emission Haryono Setiyo Huboyo; Wiwandari Handayani; Budi Prasetyo Samadikun; Didin Agustian Permadi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 2 (2022): July 2022
Publisher : Universitas Diponegoro

Abating the air emission related to the transportation sector by operation of the Bus Rapid Transport (BRT) system has been adopted in Indonesia. This study was conducted to obtain an overview of the implementation of BRT, the success of shifting private vehicles to BRT, and the number of emissions resulting from the operation of BRT. The study was conducted using a questionnaire and observations in BRT vehicles. A questionnaire survey was conducted randomly across Semarang sub-districts for 701 private vehicles consisting of cars and motorcycles in a parking lot. Questionnaires were distributed to BRT users in the waiting room and among those who left the BRT. The emission quantity is obtained from GPS observations installed in the BRT and quantified by the emission generation equation based on the bus speed. Even though they are not BRT users for daily activities, motorcycle users use BRT more frequently than private car users. For the private car and motorcycle users, the BRT coverage area is the first barrier to using the BRT system, followed by travel time (due to congestion and traffic jams). Based on current BRT users, the shifting of motorcycle users is far higher than private car users. About 30% of public transport users (besides BRT) shift to BRT users. The BRT emissions (CO and TSP) in the east-west corridor on weekdays and weekends are higher than those in the south-north corridor. Based on this study's results, the BRT application has not significantly reduced the use of private vehicles. Instead, shifting occurs from former public transport to BRT. BRT emissions are related to traffic route conditions and topography. BRT implementation needs to comprehensively consider social, economic and technical (infrastructure) aspects.

Greenhouse Gas Emission Reduction Strategies in the Transportation and Solid Waste Sector in Cilacap Regency Nurandani Hardyanti; Budi Prasetyo Samadikun; Adinda Ragil Saputri; Adinda Putra Yuwono
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 2 (2022): July 2022
Publisher : Universitas Diponegoro

Every year, population growth in Cilacap Regency inevitably results in various impacts in various fields, including transportation and solid waste. The number of motorized vehicles in the Cilacap Regency has increased from 588,283 units in 2017 to 714,533 units in 2020. On the other hand, solid waste generation in Cilacap Regency in 2020 reached 0.22 tons per capita per year. Both activities can potentially reduce the air quality of the Cilacap Regency. One of the causes of the decline in air quality is CO2, CH4, and N2O gases, which can cause global warming. This study aims to inventory and project GHG emission loads, determine mitigation strategies and design regulations related to GHG emission reduction in the transportation and solid waste sector in Cilacap Regency. The method used to inventory GHG emissions in this research is the 2006 IPCC method with Tier 1 and Tier 2 accuracy. Then it is projected for the next ten years with a Business As Usual (BAU) scenario. To determine the selected reduction strategy using SWOT and QSPM analysis. The inventory results and projected GHG emissions in the solid waste sector in 2030 are 109.29 Gg CO2e. 4 GHG emission reduction programs in the solid waste sector could reduce up to 29.49% Gg CO2-e in 2030. Then the BAU scenario GHG emissions in the transportation sector in 2030 reached 21,417 Gg CO2e. The six proposed scenarios were able to produce a percentage of GHG reduction of 7 65% in 2030 or 1,638,409 Tons of CO2e or 1,638 Gg CO2e from 2021-to 2030 with a priority strategy for reducing GHG emissions is increasing pollution buffers by building green open space and non-motorized pathways with a reduced rate of 2%.

Emisi Polutan Konvensional dari Aktivitas di Alur Pelayaran Pelabuhan Dili Marcal de Araujo Pereira Babo Martins; Haryono Setiyo Huboyo; Budi Prasetyo Samadikun
Jurnal Serambi Engineering Vol 7, No 3 (2022): Juli 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i3.4268

Pelabuhan bagi negara baru seperti Timor-Leste memiliki arti penting dalam meningkatkan sektor perekonomian negara dalam rangka mencapai kemakmuran rakyat Timor Leste. Di sisi lain aktivitas pelabuhan juga memberikan dampak emisi polutan udara bagi lingkungan sekitarnya Penelitian ini ditujukan untuk mendeskripsikan kunjungan kapal ke pelabuhan dan mengestimasi timbulnya polutan konvensional aktivitas pelayaran di dalam pelabuhan Dili Data kunjungan kapal, spesifikasi kapal dan karakteristik area pelabuhan menjadi input awal dalam menghitung emisi. Faktor emisi dari literatur juga digunakan untuk menghitung emisi untuk polutan PM2.5, SO2, NOx, VOCs. Jenis kapal Ro-Ro Cargo mendominasi sebanyak 56% jenis kapal yang masuk ke pelabuhan. Sedangkan total emisi yang dihasilkan dari aktivitas kapal di alur pelayaran untuk parameter PM2.5, SO2, NOx dan VOC masing masing 0.348 g/tahun, 0.421 g/tahun, 4.842 g/tahun dan 0.630 g/tahun. Perbandingan emisi mesin bantu kapal/mesin induk kapal tunda tiap polutan untuk PM2.5, SO2, NOx dan VOC masing masing : 5%, 14%, 19% dan 4%. Mengingat emisi terbesar berasal dari pengoperasian kapal tunda, maka program reduksi emisi dapat difokuskan pada efisiensi pengoperasian kapal tunda di area pelabuhan.

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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