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All Journal ASEAN Journal of Systems Engineering Majalah Forum Teknik UGM Traksi : Majalah Ilmiah Teknik Mesin BERKALA SAINSTEK Jurnal Teknologi Journal of Engineering and Technological Sciences Bioeksperimen: Jurnal Penelitian Biologi JDE (Journal of Developing Economies) Indonesian Journal of Chemistry Journal of Science Education Research Paedagoria : Jurnal Kajian, Penelitian dan Pengembangan Kependidikan Angkasa: Jurnal Ilmiah Bidang Teknologi JURNAL PENDIDIKAN TAMBUSAI AL-HAYAT: Journal of Biology and Applied Biology Dharma Bakti J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Teknik Mesin Jurnal Inovasi Teknik Kimia Journal of Appropriate Technology for Community Services ASEAN Journal of Chemical Engineering Jurnal Peduli Masyarakat Community Development Journal: Jurnal Pengabdian Masyarakat JURNAL PENDIDIKAN, SAINS DAN TEKNOLOGI Airlangga Journal of Innovation Management Community Empowerment Equilibrium Journal of Chemical Engineering Jurnal AbdiMas Nusa Mandiri International Journal of Industrial Engineering and Engineering Management INTERNATIONAL JOURNAL OF EDUCATION, INFORMATION TECHNOLOGY, AND OTHERS Journal of Mechanical Design and Testing (JMDT) Abdimas Altruis: Jurnal Pengabdian Kepada Masyarakat Jurnal Kiprah Pendidikan International Journal of Islamic Education, Research and Multiculturalism (IJIERM) Prosiding Seminar Nasional Teknologi Industri Berkelanjutan Jurnal Ilmu Pendidikan Indonesia JOMPA ABDI: Jurnal Pengabdian Masyarakat Techno Jurnal Pengabdian Masyarakat Bhinneka Honai SAINTIFIKA Jurnal Teknik Kimia dan Lingkungan National Multidisciplinary Sciences Journal of Energy, Materials, & Manufacturing Technology Jurnal Pengabdian Masyarakat dan Riset Pendidikan Jurnal Ekonomi dan Pembangunan Indonesia JER (Jurnal Ekonomi Regional) Jurnal Teknologi Jnanadharma JURNAL REKAYASA KIMIA & LINGKUNGAN Journal of Engineering and Technological Sciences Jurnal Bioteknologi & Biosains Indonesia (JBBI) Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Jurnal kiprah pendidikan Jurnal Bioteknologi & Biosains Indonesia
Joko Waluyo
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Evaluasi Kinerja IPAL Individual SANFAB ST 600 dengan Penambahan Anaerobic Granule Bacteria terhadap Outlet IPAL Domestik di Dusun Karangmojo, Boyolali Waluyo, Joko; Paryanto, Paryanto; Margono, Margono; Wigati, Sofiana Mukti; Rachmadhani, Shafira; Pranoto, Ibnu Singgih; Cahyani, Yulinar Pramesti
Equilibrium Journal of Chemical Engineering Vol 6, No 1 (2022): Volume 6, No 1 July 2022
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v6i1.61498

Abstract

ABSTRAK. Kabupaten Boyolali memiliki jumlah penduduk tertinggi kedua di eks-Karesidenan Surakarta sehingga limbah cair domestik yang dihasilkan juga tinggi. Hal ini mendorong upaya pengelolaan limbah domestik menggunakan SANFAB ST 600. Penelitian ini bertujuan untuk mengetahui efektivitas kinerja IPAL Individual SANFAB ST 600 setelah diberi perlakuan dengan Anaerobic Granule Bacteria. SANFAB ST 600 memiliki volume 600 L dan berkapasitas 1-4 orang. Air limbah rumah tangga yang dialirkan ke inlet ST akan menuju ke settler, selanjutnya mengalir secara upstream dalam unit Anaerobic Filter dan terjadi penguraian zat pencemar oleh bakteri anaerobik. Pengambilan sampel dilakukan pada dua rumah di Dusun Karangmojo, Kabupaten Boyolali. Sampel diuji di BLKK Yogyakarta untuk parameter TSS, COD, BOD, konsentrasi Amonia, pH, dan ORP. Pada minggu ketiga di Rumah Bapak Wahyudi, karakteristik outlet ST memiliki nilai TSS 25,5 mg/L, Amonia 0,255 mg/L, BOD 25,01 mg/L, dan COD 47,92 mg/L sehingga sudah sesuai baku mutu. Dari hasil uji dilakukan perhitungan efektivitas pengolahan TSS, BOD, dan COD dengan cara menghitung selisih konstanta inlet dan outlet dibagi dengan konstanta inlet serta perhitungan rasio BOD/COD dengan membagi kadar COD dan BOD setiap sampel. Dari sumber limbah WC dan kamar mandi (Rumah Bapak Wahyudi) bakteri bekerja lebih efektif dibanding sumber limbah WC (Rumah Bapak Somowirejo) dengan efisiensi lebih dari 80% pada minggu ketiga penambahan bakteri.  Kata kunci: Anaerobic Granule Bacteria, Efisiensi, Limbah Domestik, IPAL ST 600 ABSTRACT. Boyolali Regency has the second highest population in the residence of Surakarta so the domestic wastewater generation is also high. This led to the management of domestic wastewater using Individual WWTP SANFAB ST 600. This study aims to determine the effectiveness of Individual WWTP SANFAB ST 600 after being treated with Anaerobic Granule Bacteria. The SANFAB ST 600 has a volume of 600 L and a capacity of 1-4 people. Domestic wastewater that flows into the ST inlet will go to the settler, then flows upstream into the Anaerobic Filter unit and decomposed by anaerobic bacteria. Sampling was carried out at two houses in Karangmojo, Boyolali Regency. Samples were tested at BLKK Yogyakarta for parameters of TSS, COD, BOD, Ammonia concentration, pH, and ORP. In the third week at Wahyudi's house, the characteristics of the ST outlet had a value of TSS 25.5 mg/L, Ammonia 0.255 mg/L, BOD 25.01 mg/L, and COD 47.92 mg/L so it already suitable with the standard. From the test results, the effectiveness of TSS, BOD, and COD reduction is calculated by the difference between the inlet and outlet constants divided by the inlet constant and also calculating the BOD/COD ratio by dividing the COD and BOD levels of each sample. From the source of WC and bathroom waste (Mr. Wahyudi's House) the bacteria worked more effectively than the WC source (Mr. Somowirejo's House) with an efficiency of more than 80% in the third week after bacteria addition.Keywords: Anaerobic Granule Bacteria, Efficiency, Domestic Wastewater, IPAL ST 600
Optimizing Bioky Performance Using Super Small Vessel in Wastewater Treatment Installation at PT. X in Klaten Waluyo, Joko; paryanto, paryanto; Alamsyah, Raihan; Kurniawan, Deni; Pranoto, Ibnu Singgih; Cahyani, Yulinar Pramesti
Equilibrium Journal of Chemical Engineering Vol 8, No 1 (2024): Volume 8, No 1 July 2024
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v8i1.84831

Abstract

One of the causes of environmental pollution is liquid waste generated by industries, especially the printing industry. PT Macanan Jaya Cemerlang is one of the printing industries producing liquid waste that does not meet the quality standards. The purpose of this research is to optimize the performance of Bioky bacteria using the Super Small Vessel in the wastewater treatment plant at PT X Klaten. Treatment involves testing variables such as residence time and bacteria quantity's impact on TSS, MBAS, COD, BOD, pH, and ORP.The study employs anaerobic treatment with observed variables: residence time of 1; 2; and 3 days, and bacteria quantity of 2.4; 3.2; and 4 liters. Samples from each variable are then analyzed for pH, ORP, and TSS. COD, BOD, and MBAS are tested after obtaining the best TSS results from each variable.The research results indicate that longer residence time and increased bacteria quantity lead to greater reduction in TSS, COD, BOD, and MBAS, while pH approaches neutrality. Optimal conditions occur at a 3-day residence time with 4,0 liters of bacteria, resulting in a reduction of TSS, COD, BOD, and MBAS against the inlet by 99.75%, 95.47%, 94.84%, and 26.72%. Although the treated waste doesn't meet the established standards, it effectively reduces the pollution levels in PT X's wastewater. Keywords:Anaerobic, Efficiency, Printing Industry Liquid Waste, Super Small Vessel
Utilization of Indigofera tinctoria L. Waste for the Production of Environmentally Friendly Biobriquettes Waluyo, Joko; Abimanyu, Fachri Candra; Wardhani, Anindhea Sitta Kusuma; Pradani, Dhiah Cendikia; Prasetyo, Fahri Chandra; Widharmo, Frizas Yardena; Utami, Helvita Fajar; Utomo, Septian Warsito
Equilibrium Journal of Chemical Engineering Vol 10, No 1 (2026): Volume 10, No 1 July 2026 (First Online)
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v10i1.98010

Abstract

Indigofera tinctoria L. is a natural source of blue dye widely used in various industries, particularly in the textile sector. One of the industries utilizing Indigofera tinctoria L. as a natural dye is CV Indigo Biru Baru, based in Puron Village, Bulu District, Sukoharjo. This company specializes in the production of batik fashion. The waste generated from processing Indigofera tinctoria L. produces significant volumes of organic material, which often goes underutilized and poses a potential environmental pollution risk. This study aims to optimize this waste by converting it into biobriquettes as an alternative fuel source. The production process involves pyrolyzing the waste at temperatures of 300–350℃ for 2 hours, followed by binding with tapioca starch paste at a 10:1 ratio, molding, and quality testing based on SNI (Indonesian National Standard). The biobriquette characterization includes proximate analysis, calorific value measurement, drop test, and yield evaluation. The results showed a moisture content of 6.9665%, ash content of 7.2025%, volatile matter content of 33.522%, fixed carbon content of 52.309%, and a calorific value of 5438.902 cal/g. Meanwhile, the hardness test indicated that only 0.042% of the mass was lost during the drop test, demonstrating excellent physical durability. With its high calorific value and superior physical characteristics, this biobriquette exhibits great potential as a renewable fuel to support sustainable energy transition in Indonesia.
Green Energy from Palm Kernel Shell Gasification – dual fuel engine performance analysis Putro, Firman Asto; Pranolo, Sunu Herwi; Waluyo, Joko; Hantoko, Dwi; Aditama, Agapeano; Utomo, Mochamad Wahyu
Equilibrium Journal of Chemical Engineering Vol 8, No 1 (2024): Volume 8, No 1 July 2024
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v8i1.83497

Abstract

Electricity generation in Indonesia is mainly generated from non-renewable fuels. Based on these problems, this research utilizes palm kernel shells to be converted into producer gas as secondary fuel for a 5 kW diesel engine. Through a gasification process equipped with a cooling and gas cleaning system, low tar gas is fed to the diesel engine with variations of gas flow rate ratio to combustion air. A dummy load is installed to investigate the effect of load on diesel consumption. The diesel engine vibration increases due to using two fuel types was measured by installing a vibration meter. The research results show that the higher the load and the greater the ratio of producer gas injected, the less diesel consumption. At a gas ratio of 4:1 and an increase of load from 1 to 5 kW, the diesel fuel flow rate reduces by 25 - 31%. The most significant reduction in diesel consumption occurred at a load of 5 kW, valued at 38.49%. On the other hand, increasing the gas ratio causes an increase in diesel engine vibration. The research results showed an increase in engine vibration of 5.84% - 10.25%. The largest vibration was recorded at a load of 5 kW with a value of 92.4 m/s².Keywords:Gasification, Palm Kernel Shell, Dual Fuel Engine, Diesel Consumption, Diesel Engine Vibration
Kajian Teknoekonomi Bioetanol Berbahan Molasses Sebagai Alternatif Substitusi BBM Rifa'i, Awaludin Fitroh; Pamungkas, Widya Anggraini; Setyawati, Rosana Budi; Setiawan, Candra Pangesti; Waluyo, Joko
Equilibrium Journal of Chemical Engineering Vol 6, No 1 (2022): Volume 6, No 1 July 2022
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v6i1.63158

Abstract

ABSTRAK. Konsumsi energi pada sektor transportasi di Indonesia sangat besar dikarenakan penggunaan BBM yang sangat besar. Besarnya proporsi penggunaan BBM untuk transportasi juga diikuti dengan besarnya subsidi pemerintah untuk BBM. Data sepanjang tahun 2010-2020 menunjukkan realisasi subsidi BBM selalu lebih besar dibandingkan dengan yang dianggarkan. Sehingga perlunya alternatif untuk mengurangi konsumsi BBM pada sektor transportasi. Dari sisi teknis peluang penggunaan bioetanol generasi 1 (G1) berbahan molasses mudah di aplikasikan karena proses yang sederhana. Dari analisis ekonomi terlihaat bahawa projek ini layak dilakukan ketika NPV dan DCFROR bernilai positif, sehingga saat harga molasses 1.500,00/ Kg dan harga bioetanol 15.000,00/ liter projek ini layak dilakukan, begitu juga ketika harga molasses 2.061,00/ Kg dan harga bioetanol 16.000,00/ liter serta ketika harga molasses 2.061,00/ Kg dan harga bioetanol 15.000,00/ liter, namun ketika harga molasses 2.061,00/ Kg dan harga bioetanol 12.113,00/ liter projek ini tidak layak dilakukan karena NPV dan DCFROR bernilai negatif. Dari hasil simulasi tersebut diketahui bahwa harga molases dan bioetanol sangat berpengaruh terhadap realisasi substitusi BBM dengan bioetanol, selain itu ketersedian bahan baku yaitu molasses juga perlu diperhatikan untuk menjaga kontinuitas proses. Kata Kunci: Bahan Bakar, Bioetanol, Ekonomi, Transportasi  ABSTRACT. Energy consumption in the transportation sector in Indonesia is very large due to the very large use of fuel. A large proportion of the use of fuel for transportation is also followed by the number of government subsidies for fuel. Data throughout 2010-2020 show that the realization of fuel subsidies is always higher than the budgeted one. So the need for alternatives to reduce fuel consumption in the transportation sector. From a technical point of view, the opportunity to use bioethanol generation 1 (G1) which is made from molasses is easy to apply because of the simple process. From the economic analysis, it can be seen that this project is feasible when the NPV and DCFROR are positive, so when the molasses price is 1.500,00/Kg and the bioethanol price is 15,000.00/liter this project is feasible, as well as when the molasses price is 2.061,00/Kg and the price of molasses is 2.061,00/Kg. bioethanol 16.000,00/liter and when the price of molasses is 2.061,00/Kg and the price of bioethanol is 15.000,00/liter, but when the price of molasses is 2.061,00/Kg and the price of bioethanol is 12.113,00/liter this project is not feasible because of NPV and DCFROR have a negative value. From the simulation results, it is known that the price of molasses and bioethanol is very influential on the realization of the substitution of fuel with bioethanol, the availability of raw materials or molasses also needs to be considered to maintain the continuity of the process.Keywords: Fuel, Bioethanol, Economy, Transportation
Co-Authors Abdul Karim Zulkarnain Abdul Wahid Abil Fida Siskayanti Abimanyu, Fachri Candra Aditama, Agapeano Agnesa, Oki Sandra Agung Wibowo, Wusana Agus Imam Sonhaji Agustinus Winarno Akhmad F. Alhikami Akif Mahrus Ali Al Haq, Bahaul Fahmi Alamsyah, Raihan Allam K, Muhammad Amalia Febryane Adhani Mazaya Anifah, Eka Masrifatus Anis Kristiani, Anis Ari Ariangga Orranius Putra Patarru Ari Diana Susanti, Ari Diana Arief Budiman Ariyadi, Hifni Mukhtar Arvianto, Rizky Ibnufaatih Bakar, Syafriyudin Abu Bambang Eko Afiatno Bambang Purwono Bambang Soepeno Bambang Soepono, Bambang Basuki, Rio Basworo, Agung Tri Bikorin Bikorin Cahyani, Fadhila Siti Cahyani, Yulinar Pramesti Dahlan, Irvan Damayanthy, Ramanda Ayu Damianus Mario Ricky Fernando Damianus Mario Ricky Fernando Deni Kurniawan, Deni Deny Ratna Yuniartha Diana Susanti, Ari Dinda Safitri Ramadhani Dodik Prakoso Eko Hery Suwandojo Dodik Prakoso Eko Hery Suwandojo Dodik Prakoso Eko Hery Suwandojo Dwi Siswanta Dwi Wahyuni Edi Iskandar, Edi Edy Prayitno Eko Haryanto Eko Haryanto Eko Haryanto Ely Afridiana Kuncoro Fachry Abda El Rahman Fajar Y. Prabowo Ferhadius Endi Ganjar Andaka Gunawan Nugroho Hadi Saputra Hana Himatul ‘Aliyah Hanif, Muhammad Ibrahim Hantoko, Dwi Hasan Albana Rhomadhon Hasanah, Rafiatul Hayatullah, Wahyu Herry Purwanti, Noordiana Herry, Noordiana Heru S. B. Rochardjo Herwi Pranolo, Sunu Hotlan Samosir Hudiyo Firmanto, Hudiyo I Ketut Mahardika Ibnu Singgih Pranoto Ikbar, Royhan Ikhsanudin, Muhammad Nur Indah Retuwati Ramadhana Indrawati Irnawati Izzulhaq, Muhammad Ghozy Jekti Prihatin Johan Syafri Mahathir Ahmad Jumina Jumina Jussac Maulana Masjhoer Kamalia Fikri Kamalia Fikri Kholifatul Ardli, M. Ulul Albab Kholiq Fadillah Amriansyah Kosmar Marojahan Damanik Kurnia, Irwan Kurniawan, Yehezkiel Steven Kuswati Kuswati Lestari, Nidi Lestary, Septy Luthfiana Nurul Hidayati, Luthfiana Nurul Mahda Mega Andyka Hieguyta Marausna, Gaguk Mardiana, Alif Margono Margono Maria Ulfa Mastini Matovanni, Maudy Pratiwi Novia Maulia, Zahrotul Mazaya, Amalia Febryane Adhani Michael Seen Mochammad Iqbal Mohammad Imam Farisi Mohammad Wildan Habibi, Mohammad Wildan Muhammad Farhan Abrar Muhammad Kusumawan Herliansyah Muhammad Sholeh MUHAMMAD SHOLEH Muhammad Yusuf Mujtahid Kaavessina, Mujtahid Musyarofah Musyarofah, Musyarofah Nabila, Zahrani Putri Ndaru Pratama, Nico Nidia Lestari Ningsih, Silvi Putri Ayu Noordiana Herry Purwanti Norman, Hafiz Novesa Nurgirisia, Novesa Nugroho Dewayanto Nur Aini Masruroh Nur Hidayat, Wahyu Nur Mayke Eka Normasari Nur Wahyudi Pamungkas, Widya Anggraini Paryanto Paryanto Paryanto Pazli, Pazli Prabang Setyono Pradani, Dhiah Cendikia Pramudya Dwi Aristya Putra Pranolo, Sunu Herwi Pranoto, Ibnu Singgih Prasetiyo, Jenni Prasetyo, Fahri Chandra Purba, Ibnu Tryansar Purmanna, Astrino Putra, Ariadi Indra Putri, Rizqi Wulandari Putro, Firman Asto Qadarusman, Muhammad Luqman Rachmadhani, Shafira Rachmawati, Rr Yuliana Rahmat Bayu Raziq, Abdur Reza, Mutia Ridho Bayuaji Ridho Hantoro Ridlo, Zainur Rasyid Rifa'i, Awaludin Fitroh Rofika Rofika, Rofika Rony Arjuna Rosalinda, Julitha D Rosalinda, Julitha Dwi Rusdianto Rusdianto, Rusdianto Saiful Huda Samuel Kristiyana Sapawe, Norzahir Sembodo, Bregas Siswahjono Tatag Septian, Ardie Setiawan, Candra Pangesti Setyawati, Rosana Budi Setyowati Rahayu, Suparni Sidiq, Muhammad Fadel Simarmata, Henni Mariani Siswahjono Tatag Sembodo, Bregas Siti Rohmah Slamet Hariyadi Sperisa Distantina Sri Rahayu Lestari Su Dar mono Subchan, Wahju Sudarmono Sudarmono Sugiyanto - Sugiyanto Sugiyanto Suparni Setyowati Rahayu Sutrisno S Suwanto Raharjo Syafriyudin Syafryudin Tiurlina Siregar Totok R. Biyanto TRI ACHMADI Tri Haryanto Triyanto, Heru Agus Umi Fadilah, Umi Utami, Helvita Fajar Utomo, Mochamad Wahyu Utomo, Septian Warsito Wahyu Wilopo Wahyu Wilopo Wardhani, Anindhea Sitta Kusuma Widharmo, Frizas Yardena Wigati, Sofiana Mukti Yayuk Fatmawati, Yayuk Yonathan Ito Yudha, Venditias Yuli Pratiwi Yuli Pratiwi Yulinar Pramesti Cahyani Zaid Haidar Khairy Zainal Abdi