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All Journal TEKNIK Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan METANA Jurnal Ilmu Lingkungan Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Journal of Engineering and Technological Sciences Jurnal Teknik Mesin Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Aplikasi Teknologi Pangan Molekul: Jurnal Ilmiah Kimia Indonesian Physical Review NEUTRON : Research from all areas of the Civil Engineering Jurnal Riset Teknologi Pencegahan Pencemaran Industri Journal Of Sustainability Perspectives Journal of Sustainability Perspectives Journal of Governance Risk Management Compliance and Sustainability

Mochamad Arief Budihardjo

Department Of Environmental Engineering, Faculty Of Engineering, Diponegoro University (UNDIP), Semarang, Central Java, Indonesia

Author-ID : 244204

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Penilaian Daur Hidup Proses Distribusi BBM di PT Pertamina (Persero) Fuel Terminal Parepare Putri Alifa Kholil; Mochamad Arief Budihardjo; Fuad Muhammad; Ketut Karno
Jurnal Ilmu Lingkungan Vol 20, No 3 (2022): July 2022
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.20.3.685-695

Pada tahun 2020, PT Pertamina (Persero) Fuel Terminal Parepare telah mendistribusikan BBM sebesar 498.270,317 kiloliter (KL). Proses distribusi BBM tersebut menghasilkan emisi dan limbah yang berpotensi berdampak pada lingkungan sekitar. Tujuan dari penelitian ini adalah menganalisis potensi dampak lingkungan dari proses distribusi BBM di PT Pertamina (Persero) Fuel Terminal Parepare dan mengetahui unit proses yang paling berdampak terhadap lingkungan menggunakan metode Life Cycle Assessment (LCA). LCA dilakukan dengan ruang lingkup gate-to-gate dimulai dari proses penerimaan BBM hingga pendistribusian BBM mengacu pada SNI ISO 14040:2016 dan SNI ISO 14044:2017. Perhitungan penilaian dampak dilakukan menggunakan software Microsoft Excel dengan metode CML IA Baseline dengan unit fungsi yang digunakan adalah 1 KL BBM. Kategori dampak potensi pemanasan global, potensi penipisan ozon, potensi hujan asam, dan potensi eutrofikasi dipilih berdasarkan relevansi dengan aktivitas perusahaan dan yang termasuk dampak kategori utama berdasarkan Peraturan Menteri Lingkungan Hidup dan Kehutanan Nomor 1 Tahun 2021 tentang Program Penilaian Peringkat Kinerja Perusahaan dan Pengelolaan Lingkungan Hidup. Hasil interpretasi menunjukkan seluruh dampak yang dikaji memiliki isu penting (hotspot) pada unit proses distribusi yang disebabkan oleh penggunaan listrik untuk pompa elmot dengan nilai karakterisasi untuk potensi pemanasan global sebesar 3,01 x 10-1 kg CO2 ek/KL, potensi penipisan ozon sebesar 8,79 x 10-9 kg CFC-11 ek/KL, potensi hujan asam sebesar 1,34 x 10-3 kg SO2 ek/KL, dan potensi eutrofikasi sebesar 1,65 x 10-3 kg PO4 ek/KL. Rekomendasi yang dapat diberikan adalah dengan melakukan efisiensi penggunaan listrik pompa atau dengan mengganti sumber energi listrik dari PLN menjadi energi terbarukan seperti menggunakan panel surya atau turbin angin.ABSTRACTIn 2020, PT Pertamina (Persero) Fuel Terminal Parepare has distributed fuel amounting to 498,270,317 kiloliters (KL). The fuel distribution process produces emissions and waste that have the potential to have an impact on the surrounding environment. The purpose of this study is to analyze the potential environmental impact of the fuel distribution process at PT Pertamina (Persero) Fuel Terminal Parepare and find out the process units that have the most impact on the environment using the Life Cycle Assessment (LCA) method. LCA is carried out with a gate-to-gate scope starting from the process of receiving fuel to distributing fuel referring to SNI ISO 14040: 2016 and SNI ISO 14044: 2017. The calculation of impact assessment is carried out using Microsoft Excel software with the CML IA Baseline method with the function unit used is 1 KL BBM. Categories including global warming potential, ozone depletion potential, acid rain potential, and eutrophication potential were selected based on relevance to the company's activities and which included the impact of the main categories based on the Minister of Environment and Forestry Regulation No. 1 of 2021 concerning the Company Performance Rating Assessment Program and Environmental Management. The results of the interpretation showed that all the impacts studied had important issues (hotspots) on the distribution process unit caused by the use of electricity for elmot pumps with a characterization value of 3.01 x 10-1 kg of CO2 eq/KL, ozone depletion potential of 8.79 x 10 -9 kg CFC-11 eq/KL, acid rain potension of 1.34 x 10-3 kg SO2 eq/KL, and eutrophication potential of 1.65 x 10-3 kg PO4 eq/KL. Recommendations that can be given are to make efficiency of the use of pump electricity or by replacing the source of electrical energy from PLN to renewable energy such as using solar cells or wind turbines.

The Effects of Long-Term Storage on the Quality of Palm Oil Biodiesel and Canola Oil Biodiesel Yoyon Wahyono; Hadiyanto Hadiyanto; Mochamad Arief Budihardjo; Rifqi Ahmad Baihaqi; Ainun Nurusy Syahida
Journal of Engineering and Technological Sciences Vol. 54 No. 3 (2022)
Publisher : Institute 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.2022.54.3.1

Effective storage of biodiesel has proven to be a challenge, which the Indonesian government has invested billions of Indonesian rupiahs (IDR) in to overcome. It is thus important to investigate how different storage methods can affect the quality of biodiesel. The purpose of this study was to determine how storage at room temperature in the dark affects the quality of palm oil biodiesel (POB) and canola oil biodiesel (COB). POB and COB were stored in closed containers at 22 °C in the dark for 12 months. The results showed that POB was more significantly damaged than COB. This study found increases of density (POB by 51.52 kg/m3 and COB by 17.52 kg/m3), kinematic viscosity (POB by 0.67 mm2/s and COB by 0.32 mm2/s), acid value (POB by 0.27 mg-KOH/g and COB by 0.25 mg-KOH/g), total glycerol (POB by 0.58%-mass and COB by 0.60%-mass), and peroxide value (POB by 48 meq-O2/kg and COB by 54 meq-O2/kg), whereas there were decreases in fatty acid methyl esters (POB by 7.11%-mass and COB by 9.36%-mass). Gas chromatography-mass spectrometry results for POB and COB showed decreases in 9-octadecenoic acid methyl ester and 9,12-octadecadienoic acid (Z,Z)-methyl ester, and increases in 9-octadecenoic acid and 9,12-octadecadienoic acid (Z,Z). Fourier transform infrared spectroscopy (FTIR) results revealed the presence of methyl ester functional groups. The storage of biodiesel in a closed container at 22 °C in the dark can minimize biodiesel oxidation, as evidenced by the findings of this study, namely, the insignificant formation of ketone and aldehyde groups in the biodiesel oxidation process during storage, based on the results of FTIR.

Waste to Product : Bisolum-Bricks, Incorporating of WWTP Sludge of Textile Industry into Bricks for Wall Pairs Armas Arifin Arbunowo; Purwanto Purwanto; M. Arief Budihardjo
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 10 No. 2 (2019)
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2019.v10.no2.p29-35

The disposal of WWTP sludge is one of problems in textiles industry, which requires serious attention to find a way out. Utilization of sludge from the textile industry wastewater treatment, according to the Republic of Indonesia Goverment Regulation No.110 year 2014, can be used as a mixture of brick raw materials, must consider the availability of technology, meet environmental quality standards and meet technical requirements for use. Environmental feasibility refers to Goverment Regulation No.110 year 2014, carried out with TCLP toxicity tests on raw materials for soil, WWTP sludge and brick products. Acute toxicity test LD 50, carried out on brick products in which using a mixture of WWTP Sludge. Technical feasibility is carried out by testing the quality of brick products in accordance with solid brick Nasional Indonesian Standard (SNI) for wall pairs. Research results prove the toxicity test on raw materials and brick products with a mixture of up to 60% of waste, still meets the requirements of TCLP and LD.50 according to GR No.110 year 2014. Test the quality of bricks at the use of 40% and 60% mixture of sludge still meet Nasional Indonesian Standard (SNI 15-2094-2000) solid red brick for wall pairs.

The Influence of ZnCl2 Activation on Macronutrient NPK Adsorption Simultaneously Using Coconut Shell Biochar for Soil Fertility Improvement Candra Purnawan; Christina Candra Dewi; Syafrudin syafrudin; Bimastyaji Surya Ramadan; Mochamad Arief Budihardjo; Agus Jatnika Effendi; Syarif Hidayat
Molekul Vol 16, No 1 (2021)
Publisher : Universitas Jenderal Soedirman

The influence of ZnCl2 activation on macronutrient Nitrogen, Phosphor, Potassium (NPK) adsorption simultaneously using Coconut Shell Biochar for soil fertility improvement has been conducted. Biochar formation is carried out at temperature up to 500 oC using variation in the concentration of ZnCl2 0,5; 1,0; 1,5; 2,0; dan 2,5 M. The biochar formed was characterized using Fourier Transform InfraRed (FTIR) spectroscopy and Surface Area Analyzer (SAA). Whereas NPK analysis has used the Indonesian standard method (SNI 7763: 2018). Based on this research, it was concluded that the greater the concentration of ZnCl2 activator, indicated that the higher intensity of the spectra of –OH and –NH2 at wave number 3400 cm-1 and 1600 cm-1. It showed that biochar activation was higher and a more active functional group was opened. Increasing the concentration of ZnCl2 activator has increased Biochar adsorption of NPK macronutrients. The optimum condition for activation of coconut shell Biochar was activation with ZnCl2 2.5 M. The addition of activated Biochar was increased soil adsorption on NPK macronutrients. Biochar addition had increased Nitrogen (N) adsorption up to 23.53%, Phosphor (P) up to 200%, and Potassium (K) up to 41.24%.

Efek Aerasi terhadap Perubahan Residu H2O2 Air Fermentasi Mocaf (Modified Cassava Flour) Nurul Yaqin; Ahmad Ni'matullah Al-Baarri; Mochamad Arief Budihardjo; Widayat Widayat
Jurnal Aplikasi Teknologi Pangan Vol 9, No 1 (2020): February 2020
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17728/jatp.6181

Penelitian ini bertujuan untuk mengetahui perubahan kadar H2O2 yang berpotensi menjadi pencemar lingkungan beserta parameter kualitas air fermentasi mocaf (AFM) lainnya setelah diberikan perlakuan aerasi. Limbah mocaf yang diberikan perlakuan aerasi mengalami penurunan kadar H2O2 lebih besar dari non aerasi. Berdasarkan uji beda T-test antara perlakuan aerasi dengan non aerasi kadar H2O2 memiliki perbedaan yang signifikan (sig. p= 0,018, p<0,05). AFM non aerasi mengalami penurunan L* sebesar 5,9%, sedangkan perlakuan aerasi menurun lebih besar dengan persentase penurunan sebesar 15,8%. TDS AFM tidak mengalami perbedaan yang signifikan antara perlakuan aerasi dengan non aerasi (P= 0,226 ,p>0,05) demikian juga dengan pameter turbiditas (P= 0,117, P>0,05) dan OD 610 nm (P= 0,987, P> 0,05).

Evaluation of Clean Water Distribution Development in Bee Timor-Leste, E.P Post Administrative Dom Aleixo Dili Municipality Sri Sumiyati; Zeferino Soares Lopes; M Arief Budihardjo
Neutron Vol 21 No 2 (2022): JANUARY 2022
Publisher : NAROTAMA UNIVERSITY, Indonesia

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

Post Administrative Dom Aleixo is a part of Dili City which acts as the central government with an area of 33.12 km2, total population in 2015 as many 130,095 inhabitants. The purpose of this study is to discharge capacity of the spring’s water still sufficient to distribute water for 10 years in the future. The evaluate the clean water distribution system in Post Administrative Dom Aleixo according to the Timor-Leste Strategic Development Plan 2011-2030, the method used is by using the Epanet 2.2 program. The data needed in Epanet 2.2 is a map of the network system, the elevation of each junction, the water discharge, pipe and the pipe roughness value. In addition to this data, there is also population data and percentage level of service, which will be used in the calculation of debits in the year of 2020-2030.

The Use of Qual2KW to Analyze the Concentration of pH, Nitrate, Phosphate, and Fecal Coliform on Water Quality: A Case Study of the Klampok River, Semarang Regency Winardi Dwi Nugraha; Sudharto Prawata Hadi; Setia Budi Sasongko; Adranandini Noor Anisa; Mochamad Arief Budihardjo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 2 (2022): July 2022
Publisher : Universitas Diponegoro

Usually, the main source of water is a river, which makes it essential to ensure that the water from that source is not polluted and in accordance with the water quality standards. Water quality can deteriorate as a result of domestic and industrial waste. This quality is measured based on several parameters, such as the concentration of pH, nitrate, phosphate, and fecal coliform in the water. QUAL2KW can be used to analyze river water quality in order to solve several water quality-related problems. The main river water source in Semarang Regency is the Klampok River, whose water is used to support agriculture, livestock, and other activities. This study aims to determine the concentration of the above-mentioned parameters in the samples from the Klampok River using QUAL2KW. The water samples are obtained from different six points on the Klampok River, and the chi-square test is used for validation. From the laboratory test results for the river-quality parameters, after being simulated using QUAL2KW and validated using the chi-square method, it can be concluded that the quality of the Klampok River belongs to class II. These results can be used as a reference by the Semarang Regency government in managing river water quality.

STUDI POTENSI EKONOMI PEMANFAATAN LIMBAH INDUSTRI TEKSTIL PRINTING SEBAGAI BAHAN BAKAR ALTERNATIF (STUDI KASUS: PT. SEKAR BENGAWAN, KARANGANYAR) Badrus Zaman; M. Arief Budihardjo
METANA Vol 4, No 1 (2007): Juni 2007
Publisher : Universitas Diponegoro

Abstract PT. Sekar Bengawan in Karanganyar Regency. Central Java is a printing textile industry which produces 1,25 m3 of kerosene waste per day. Based on technical test, the characteristic of the kerosene waste are as follows, 42,772 MJ/kg of calorific value, 0, 08359 mg/m3 of SO2 emision, and 0,13518 mg/m3 of NO2 emision. The kerosene waste can be used as fuel with the ratio of time length, volume of soot, and weight of soot is 1,72 ; 1,6 ; and 3,1 times bigger than kerosene. Based on exposure assesment of SO2 and of NO2, Hazard index value for adult woman is 0,412; adult man is 0,272 ; child 6-12 years is 0,27;. and child 2-6 years is 0.2725. With hazard index less than one, so kerosene waste will not generate health impact. Based on these data, kerosene waste can be reused and resold to the market. The target market segments are households and street vendors. Kerosene waste which is priced Rp ll75/liters will generate Rp.22.643.437,5 per month of profit compared with Rp.50.625.000 per month of cost if it is treated an hazardous waste treatment. Key word : Waste kerosene, Hazard Index, Reuse, Economic potency

Forecasting Greenhouse Gas Emissions from Heavy Vehicles: A Case study of Semarang City Mochamad Arief Budihardjo; Isaaf Fadhilah; Natasya Ghinna Humaira; Mochtar Hadiwidodo; Irawan Wisnu Wardhana; Bimastyaji Surya Ramadan
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 2 (2021): July 2021
Publisher : Universitas Diponegoro

In Indonesia, transportation sector, specifically road transport consumed most energy compared to other sectors. Eventually, the energy consumption will increase due to the growth of vehicle number that also escalate emission. Vehicle emissions had been recognized as a significant contributor to atmospheric greenhouse gas (GHG) pollution. Heavy-duty vehicles are considered as main sources of vehicular emissions in most cities. Therefore, it is crucial to take into account heavy-duty vehicle emission projections in order to support policymakers to identify vehicle emissions and develop pollution control strategies. The aim of this study is to forecast heavy-duty vehicle population, vehicle kilometers travelled (VKT), fuel consumption, and heavy-duty vehicle emissions using data of Semarang City to illustrate greenhouse gas emission of big cities in Indonesia. Business as Usual (BAU) and The Intergovernmental Panel on Climate Change (IPCC) method were incorporated to determine vehicle emission projection. Heavy-duty vehicle emissions increase from 2021 to 2030 by 12.317 to 22.865 Gg CO2/year with amount trucks and buses emissions of 21.981,5 Gg CO2/year and 884,2 Gg CO2/year, respectively.

Hazardous Solid Waste Management in Universitas Diponegoro: Planning Towards Environmental Sustainability Sri Sumiyati; Bimastyaji Surya Ramadan; Mochamad Arief Budihardjo; Aufa Rahma Al-Hafidz; Haekal Awliya Muhammad Salman; Rizal Adi Wirawan
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 1 (2022): March 2022
Publisher : Universitas Diponegoro

Universitas Diponegoro has a role in contributing to considerable numbers of hazardous solid waste from academic activities as it is the largest university in Central Java Province, Indonesia. Therefore, improper hazardous solid waste will cause potential disease for humans and pollute the environment. For this reason, proper hazardous solid waste management is urgently needed. This research aims to design hazardous solid waste management for Universitas Diponegoro as a pilot testing study. The research used questionnaires, surveys, in-depth interviews, and observations to construct an appropriate hazardous waste management system. The result showed that hazardous solid waste in Universitas Diponegoro came from 5 sources: education, office, laboratory, supporting facilities, and Pleburan Campus. The estimation of hazardous solid waste produced by the Universitas Diponegoro in 2021 is as much as 100.4 kg/day. The hazardous waste characteristics are toxic, corrosive, flammable, and infectious. In the hazardous management planning that was developed, the design of the waste transportation and storage system at the waste station in the Tembalang and Pleburan campuses has a total investment and operation cost of Rp 6,259,841,999 for 10 years of operation. This design is hoped to enhance the campus's achievement in sustainability efforts.

Co-Authors . Widayat A'yun, Husnul Karimah Qurrata Adranandini Noor Anisa Aen Hendrawati Agung Budiarto Agus Jatnika Effendi Ainun Nurusy Syahida Al-Baarri, Ahmad Ni'matullah Ambariyanto , Ambariyanto Ambariyanto Amin Chegenizadeh Ammar, Marah Anik Sariminingsih Anik Sarminingsih, Anik Annisa Sila Puspita Annisa Sila Puspita Armas Arifin Arbunowo Armas Arifin Arbunowo Arumdani, Indah Sekar Aufa Rahma Al-Hafidz Badrus Zaman Baskoro Lokahita Bimastyaji Surya Ramadan Bimastyaji Surya Ramadhan Budi Warsito Cahyo Harsanto, Cahyo Candra Purnawan Christina Candra Dewi Custodio Assis Correia Ximenes Denny Nugroho Sugianto Elinna Putri Handayani Fadhillah, Muhammad Afdhal Fauziyah, Fita Fuad Muhammad Ganjar Samudro Ghifar Rahman H Hadiyanto Haekal Awliya Muhammad Salman Hanif Kusumasasmita Hanun, Alain Shofia Haryono Setiyo Huboyo Henny Juliani Henny Juliani, Henny Hizkia Christian Putra Setiadi Ika Bagus Priyambada Ikviy Ya’azzan Nabila Indah Sekar Arumdani Irawan Wisnu Wardhana Irawan Wisnu Wardhana Isaaf Fadhilah Kasiyati Kasiati Ketut Karno Kismartini Kismartini Marcelinus Christwardana Mochtar Hadiwidodo Natasya Ghinna Humaira Nurandani Hardyanti Nurul Yaqin Okmi Hapsari P Purwanto Pertiwi Andarani Purwono Purwono Purwono Purwono Puspita, Annisa Sila Putri Alifa Kholil Ramadan, Bimastyaji Surya Ramadhan, Muhammad Hisyam Ramadhan Rifqi Ahmad Baihaqi Rizal Adi Wirawan Rizki Tri Andrianingsih Sandra Anggita Sari Sani, Muhammad Thariq Sejati, Anang Wahyu Setia Budi Sasongko Sri Sumiyati Sudarno Sudarno Sudharto Prawata Hadi Syafrudin Syafrudin Syafrudin Syafrudin Syafrudin syafrudin Syahrul Al Qadar Syarif Hidayat Thomas Triadi Putranto, Thomas Triadi Uus Uswatun Hasanah Wahyudi, Rochmad Wati, Hessy Rahma Widayat Widayat Widi Widayat Winardi Dwi Nugraha Yoyon Wahyono ZAMAN, Badrus Zeferino Soares Lopes

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