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All Journal Rotasi Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Teknik Kimia USU JURNAL INTEGRASI PROSES Teknika: Jurnal Sains dan Teknologi JURNAL KESEHATAN LINGKUNGAN (Journal of Environmental Health) Jurnal Ilmiah Universitas Batanghari Jambi QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Jurnal Kreativitas PKM Jurnal Inovasi Teknik Kimia Jurnal Civronlit Unbari Jurnal Engineering AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) International Journal of Research in Vocational Studies (IJRVOCAS) Jurnal Teknik Kimia USU Jurnal Talenta Sipil Hexatech: Jurnal Ilmiah Teknik Seminar Nasional Insinyur Profesional (SNIP) Jurnal Ilmiah Teknik dan Sains (JITS)
Rifqi Sufra
Institut Teknologi Sumatera
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Other

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GREENING AND TREE PLANTING TO REALIZE ASRI SCHOOL Adriansyah, Endi; Marhadi, Marhadi; Viareco, Hariestya; Herawati, Peppy; Sufra, Rifqi
Qardhul Hasan: Media Pengabdian kepada Masyarakat Vol. 9 No. 1 (2023): APRIL
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/qh.v9i1.7901

Abstract

Tree planting has the aim of reforestation and greening for conservation, greening is an effort to create a beautiful and useful area and greening is increasing the area of ​​RTH (Green Open Space). This community service is at SD N 2 Senawar. Community service aims to increase tree planting in schools and foster students' character to love the environment. Community service methods are presentation, discussion and practice methods. Transfer of knowledge and technology given to residents of SD N 2 Senawar school. community service activities participants can find out about tree planting and reforestation activities properly and can reduce the impact of environmental pollution.
Pengaruh Kenaikan Laju Alir Fluida Panas dan Arah Aliran terhadap Kinerja Plate and Frame Heat Exchanger Achmad, Feerzet; Naldi, Roy; Uzlifah Janah, Dikri; Sufra, Rifqi; Yuniarti, Reni
Jurnal Teknik Kimia USU Vol. 13 No. 1 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i1.14321

Abstract

Plate and Frame Heat Exchanger (PFHE) is a plate and frame type heat exchanger that is efficient and effective in improving energy efficiency. Research using PFHE aims to determine the effect of increasing the flow rate of hot fluid on heat exchanger performance. This research was conducted at a flow rate variation of 0.7 L/min, 0.9 L/min, 1.1 L/min, 1.3 L/min, 1.5 L/min, 1.7 L/min, and 1.8 L/min with 180 seconds of testing each variation and recording data every 2 seconds. The cold fluid used is tap water and the hot fluid used is distilled water. The results showed that with the increase in hot fluid flow rate, the performance of PFHE also increased because the effectiveness of NTU (Ɛ-NTU) increased. The Ɛ-NTU value of unidirectional flow is 25.37% - 44.87% and in the opposite direction 37% - 68.39%. The largest Ɛ-NTU value in the countercurrent flow indicates that the countercurrent flow is more effective than the unidirectional flow. In addition, increasing the flow rate increases the Reynold's number (Nre) and Nusselt's number (Nu) which indicates the greatest convection heat transfer occurs at the highest flow rate.
The effect of solvent type on the extraction of soybean crude oil and its laboratory-scale cost analysis Saputri, Desi Riana; Listyadevi, Yuniar Luthfia; Adiwibowo, Muhammad Triyogo; Alhanif, Misbahudin; Damayanti, Damayanti; Fahni, Yunita; Auriyani, Wika Atro; Sanjaya, Andri; Sufra, Rifqi; Yuniarti, Reni; Yusupandi, Fauzi; Syahriantoro, Nur Alfi; Kurniawansyah, Arief
Jurnal Teknika Vol 19, No 2 (2023): AVAILABLE ONLINE IN NOVEMBER 2023
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v19i2.22059

Abstract

Soybeans (Glycine max) are a type of legume with moderately high fat content. Appropriate and safe types of solvents are essential in extracting fatty acids for consumption. This study aims to find an alternative solvent to replace n-hexane for extracting soybean oil and analyze its lab-scale production cost. Soybean oil was extracted by soxhlet extraction using ethanol, ethyl acetate, and n-hexane with a soybean-to-solvent ratio of 1:4 and 2:4 (w/v) and an extraction time of 1 and 2 hours. The results show that solvent polarity and soybean: solvent ratio affect the yield and density of the resulting extract. The greater the soybean-to-solvent ratio, the more oil is extracted until equilibrium. The highest yield was 36.25%, obtained at a material-to-solvent ratio of 2:4 (w/v) within 2 hours with ethyl acetate, and the oil density was 0.92 g/mL. The Gas Chromatography-Mass Spectrophotometry (GC-MS) analysis on the sample with the highest yield showed that the fatty acid composition was 34.36% linoleic acid, 22.12% palmitic acid, 19.40% stearic acid and 19.43% octadecadienoic acid. Ethyl acetate produces better yields and can be recommended as an alternative solvent to replace n-hexane for soybean oil extraction. The total extract production costs for 70% ethanol, 90% ethyl acetate, and 95% n-hexane solvents are IDR 780,847; 647,232; and 692,050, respectively. 
Intensifikasi Pengolahan Limbah Cair Laboratorium Melalui Proses Koagulasi dan Adsorpsi Studi Pengolahan Limbah Cair Laboratorium dengan Metode Kombinasi Fisika-Kimia Sufra, Rifqi; Panjaitan, Jabosar R.H; Alhanif, Misbahudin; Mustafa, Mustafa; Yusupandi, Fauzi; Adriansyah, Endi; Rahmadini, Gustia; Raqin, M. Rayhan; Herawati, Peppy; Suzana, Asih
Jurnal Talenta Sipil Vol 7, No 1 (2024): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v7i1.460

Abstract

Laboratory is one of the generators of hazardous liquid waste derived from chemicals used in practice and research. The waste is very dangerous when discharged into the environment because of the pollutants it contains. Therefore, it is necessary to treat the waste before it is disposed of to minimize the impact of pollution caused by the waste. The study aims to compare the effectiveness of zeolite adsorbents and activated carbon in reducing COD, TSS, and Cr heavy metals. Waste treatment is carried out by coagulation and adsorption methods. The adsorption process is performed using two types of adsorbents: zeolite and activated carbon. This study was carried out by variing the mass of the adsorbents at the time of complaining for 120 minutes in batches. Variations in the masses of the used 3, 5, 7, and 10 grams of adsorbenes. The results of the study showed that the more adsorbanes used, the higher the reduction of pollutant levels. The use of 10 grams of activated carbon adsorbents can reduce TSS pollutants levels of 92%, COD 95%, Cr 65%, and pH 5,0-6,38.
Analysis of Carbon Monoxide on Transportation Along the Eastern Crossroad of Jambi Amsori M.Das; Endi Adriansyah; Hariestya Viareco; Rifqi Sufra; Asih Suzana; Peppy Herawati
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 2 (2024): July 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i2.527-542

Abstract

The Eastern Crossroad is one of the national roads that connect the city of Jambi with other cities, districts, and provinces, resulting in relatively heavy traffic and frequent congestion on this road. This has led to the concentration of carbon monoxide (CO), which can result in a decline in ambient air quality. The research used a quantitative descriptive approach aimed at depicting the ambient air quality of CO on Mendalo Darat Road, which is part of Eastern Crossroad. The research revealed the highest vehicle density of 17,954 units in the morning on Tuesday, with the highest emission rate of 114,290 µg/m.s, and the lowest density on Sunday morning with 6,568 units and an emission rate of 44,207 µg/m.s. The highest accumulation of CO emission levels occurred on Tuesday evening, reaching 38,536.44 µg/Nm3. Overall, the ambient air quality of CO on Mendalo Darat Road tends to exceed the quality standards. The accumulation of increased CO emissions correlates closely with the road's national status, increased vehicle density due to high community activity, changes in the day's status (working day), and road conditions with traffic signal devices.
MICROWAVE-ASSISTED EXTRACTION OF TANNIN FROM PAPAYA LEAVES (CARICA PAPAYA LINN): THE EFFECT OF SOLVENT RATIO AND MICROWAVE POWER Glen Bower Vebrianto Siregar; Early Akhalisty Inge Abigail Br Simanjuntak; Desi Riana Saputri; Yunita Fahni; Mustafa Mustafa; Rifqi Sufra; Reni Yuniarti; Fauzi Yusupandi; Faalih Pandu Wicaksono Hadi; Diana Catur Pratiwi; Putri Jesika Adelia; Vania Nur Wahdani; Angeline Nauli; Khofifah Anggitiya Ningrum; Misbahudin Alhanif
JURNAL INTEGRASI PROSES Vol 13, No 1 (2024)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v13i1.24363

Abstract

Papaya leaves (Carica papaya Linn) have many health benefits, such as antibacterial, anti-inflammatory, antidiarrhea, and others. Papaya leaves contain tannins, saponins, alkaloids, triterpenoids, steroids, and flavonoids. The common characteristic of papaya leaves is the green color, which indicates the presence of tannins. The study aims to discover the characteristics of papaya leaf extract, the effect of the solvent ratio, and the microwave power (MP) on the extraction of tannins from the papaya leaves. Papaya leaves are extracted using the microwave-assisted extraction (MAE) method at 100, 140, and 180 W for 30 minutes, with variations in the material to the solvent ratios 1:10, 1:20, 1:30, 1:40, and 1:50. Qualitative tannin testing was carried out through color observation and FeCl3 tests. UV-Vis spectrophotometry was also used to determine the tannin levels obtained during extraction. The FeCl3 test showed that papaya leaf extract contains tannins. The optimal concentration of tannins is produced at a ratio of 1:20, with a 180 W MP of 8.06 mg TAE/g and a yield of 0.81%. MAE can potentially increase the yield of tannins, which is potentially beneficial to health.
Pemanfaatan Adsorben Dari Chip dan Fines Untuk Mengurangi Kontaminan Pada Air Lindi Rifqi Sufra; Endi Adriansyah; M. Syaiful; Asih Suzana
Jurnal Ilmiah Teknik dan Sains Vol. 2 No. 2 (2024): Desember: Jurnal Ilmiah Teknik dan Sains (JITS)
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat AKIPBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62278/jits.v2i2.41

Abstract

Limbah cair dari proses produksi pulp and papper akan menimbulkan macam-macam dampak, sebelum dibuang ke lingkungan sungai perlu dilakukan pengolahan sesuai ketentuan yang berlaku,  Pada produksi pulp, kayu gelondongan digunakan sebagai bahan utama yang akan dipotong menjadi ukuran sehingga dapat diterima. Selanjutnya ukuran yang lebih kecil yang tidak standar disebut chip pin dan fines Lindi yang mengandung berbagai jenis kontaminan dihasilkan pada proses industri pulp dan kertas berpotensi merugikan lingkungan. Serbuk kayu  dihasilkan setiap hari dari proses pengolahan kayu. pembuatan adsorben dari chip pin dan fines diaktifvasi dengan HNO3 kemudian dikeringkan pada suhu 105oC. Adsorben dilakukan uji akhir karakterisasi air lindi, penggunaan adsorben untuk di lakukan proses adsorpsi, sehingga terjadi pengolahan air limbah yang baik, dilakukan berdasarkan jumlah adsorben dan waktu kontak yang di gunakan 30 menit dan 60 menit dengan  parameter pH, BOD, TSS, TDS, Warna, turbiditas. Penelitian ini menghasilkan persentase penurunan BOD, TSS,TDS, Turbidity, warnas  adalah 10,94%, 71,17%; 31% berturut-turut selama adsorpsi dengan massa 5 gr selama 60 menit
PENGOLAHAN AIR LIMBAH PRODUKSI MIE INSTAN MENGGUNAKAN METODE OKSIDASI LANJUTAN H2O2 DENGAN FOTOKATALIS TiO2 Endi Adriansyah; Ayrus Suci; Peppy Herawati; Asih Suzana; Marah Hadi; Rifqi Sufra; M Syaiful
Jurnal Inovasi Teknik Kimia Vol 9, No 4 (2024)
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v9i4.10718

Abstract

Air Limbah mie instan dihasilkan dari mesin proses produksi seperti boiler, cleaning penggorengan berupa minyak goreng bekas. Karakteristik air limbahnya dapat ditentukan berdasarkan bahan baku yang digunakan sebagai bahan olahan seperti tepung terigu dengan kandungan karbohidrat, protein, vitamin dan mineral serta minyak kelapa. Kandungan tersebut dapat mengubah komposisi air sehingga berpengaruh pada nilai COD, BOD, pH, TSS, minyak dan lemak yang tidak sesuai baku mutu dimana dapat menurunnya kualitas air. Penelitian ini bertujuan mengetahui pengaruh konsentrasi H­2O2 dan pengaruh waktu fotokatalis TiO2 serta efektivitas metode oksidasi lanjutan H2O2 dan Fotokatalis TiO2 terhadap penurunan nilai pH, TSS, COD, Minyak dan Lemak. Kualitas air yang menurun akan berdampak negatif terhadap kesehatan manusia dan juga mahkluk hidup air  Parameter pH semakin tinggi dengan lamanya waktu kontak fotokatalis TiO2. Waktu kontak optimal fotokatalis TiO2 adalah 2 jam dengan konsentrasi penurunan TSS 68,10% dan minyak lemak 94,67%. Penurunan parameter COD dan BOD optimal pada waktu kontak 3 jam yaitu 31,80% dan 44,32%, Metode oksidasi lanjutan dengan penambahan H2O2 30% lebih efektif terhadap penurunan parameter COD dan BOD yaitu 92,56% dan 91,97%. Penurunan parameter TSS, minyak dan lemak lebih efektif menggunakan metode gabungan penambahan H2O2 30% dan fotokatalis TiO2 dengan nilai efisiensi penyisihannya adalah 92,62% dan 95%. Untuk metode fotokatalis TiO2 tersendiri kurang efektif.
Variasi Waktu Pengadukan dan Rasio Poly Aluminium Chloride (PAC) Terhadap Pengolahan Limbah Cair Industri Tahu Cahyo, Ari Dwi; Riyanto, Andi; Rukmana, Mutiara Dewi; Putri, Silvia Devi Eka; Adriansyah, Endi; Suzana, Asih; Sufra, Rifqi
Jurnal Ilmiah Universitas Batanghari Jambi Vol 25, No 1 (2025): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v25i1.6002

Abstract

Liquid waste from the tofu industry contains various organic and inorganic substances which can reduce water quality. This research aims to assess the effectiveness of Poly Aluminum Chloride (PAC) as a coagulant in reducing pollution parameters in liquid waste from the tofu industry. In this study, experiments were carried out with three variations of PAC doses (75 mg/L, 150 mg/L, and 225 mg/L) and different stirring times (10, 15, and 20 minutes) using the jar test method. The jar test method is a standard laboratory technique used to determine the optimal dose of coagulant needed to remove turbidity from wastewater. The results show that a PAC dose of 225 mg/L with a stirring time of 20 minutes is the optimal condition, reducing Total Dissolved Solids (TDS) from 996 ppm to significantly lower. The initial conductivity of 1971 µs decreased after the addition of high doses of PAC and longer stirring times. The pH parameter increased from 4 to 5. Although still acidic, this increase indicates a reduction in acidity, which can be useful in reducing negative impacts on the aquatic environment. The color of the wastewater becomes clearer and the odor decreases, indicating a decrease in organic compounds and dissolved substances. The temperature remained stable at 28ºC before and after treatment. This research confirms that PAC is effective in improving the quality of wastewater from the tofu industry through the coagulation mechanism, producing cleaner and clearer water with a significant reduction.
Pelatihan Optimalisasi Proses Produksi Minyak Kayu Putih Berbasis Green Technology di Unit Pertanian Koperasi Pondok Pesantren (Koppontren) Al-Fatah, Lampung Selatan Sufra, Rifqi; Darojat, Yusron; Nareswari, Tantri Liris; Alhanif, Misbahudin; Yusupandi, Fauzi
Jurnal Kreativitas Pengabdian Kepada Masyarakat (PKM) Vol 8, No 3 (2025): Volume 8 No 3 (2025)
Publisher : Universitas Malahayati Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jkpm.v8i3.18305

Abstract

ABSTRAK Tanaman kayu putih (Melaleuca cajuputi) merupakan tanaman produksi hasil hutan bukan kayu yang pada umumnya dimanfaatkan daunnya untuk menghasilkan minyak kayu putih. Pengrajin minyak atsiri di Koperasi Pondok Pesantren (KOPPONTREN) Al-Fattah, Desa Negara Ratu Kecamatan Natar Kabupaten Lampung Selatan yang merupakan mitra pengabdian telah melakukan usaha pengolahan minyak kayu putih melalui penyulingan sederhana. Namun, rendemen yang dihasilkan hanya berkisar 0,6 – 0,7%. Selain itu, timbulnya limbah hasil pengolahan, murahnya harga jual karena kualitas yang belum baik dan kurangnya pemasaran produk melatarbelakangi kegiatan pengabdian kepada Masyarakat (PkM) ini. Pada kegiatan ini dilakukan peningkatan kualitas produk minyak kayu putih melalui pembuatan alat redistilasi. Sosialiasi pengolahan limbah padat dan cair dalam reaktor SSF Constructed Wetland dengan tanaman rumput wlingi juga dilakukan. Selain itu, pelatihan pemasaran secara digital dan pembuatan desain kemasan dilakukan sebagai pelengkap kegiatan PkM ini. Secara keseluruhan, hasil pelatihan menunjukkan bahwa 86% peserta mengalami peningkatan kemampuan yang signifikan dengan nilai post-test rata-rata 83,8. Hasil ini cukup menggembirakan yang artinya pelaksanaan kegiatan sosialisasi dan praktek penyulingan minyak kayu putih, pengolahan limbah cair dan padat, serta branding produk mampu diikuti dengan baik oleh mitra. Kata Kunci: Branding Produk, Minyak Kayu Putih, Pengolahan Limbah, Redistilasi.  ABSTRACT The eucalyptus plant (Melaleuca cajuputi) is a non-timber forest product that is generally utilized for its leaves to produce eucalyptus oil. Essential oil craftsmen at the Al-Fattah Islamic Boarding School Cooperative (KOPPONTREN), Negara Ratu Village, Natar District, South Lampung Regency, who are our service partners, have been processing eucalyptus oil through simple distillation. However, the produced yield is only around 0.6–0.7%. Additionally, the generation of processing waste, the low selling price due to poor quality, and the lack of product marketing are the reasons behind this Community Service (PkM) activity. This activity improved the quality of eucalyptus oil products by creating a redistillation device. Socialization of solid and liquid waste treatment in the SSF Constructed Wetland reactor with wlingi grass plants was also conducted. In addition, digital marketing training and packaging design creation were conducted as a complement to this PkM activity. Overall, the training results show that 86% of participants experienced a significant improvement in their abilities, with an average post-test score of 83.8. This result is quite encouraging, meaning that the implementation of socialization activities and practices of eucalyptus oil distillation, liquid and solid waste processing, as well as product branding, can be well followed by partners. Keywords: Product Branding, Eucalyptus Oil, Waste Processing, Redistillation.
Co-Authors A Purba Achmad, Feerzet Adiwibowo, Muhammad Triyogo Ahmad, Ihsan Maulana Aji, Ahmad Frantoni Aksaronas, Zidan Ashri Alhanif, Misbahudin Amini, Fadilah Amsori M.Das Andi Riyanto Andri Sanjaya Angeline Nauli Ari Setiawan Asih Suzana Asih Suzana Asih Suzana Astri Yulia Astuti, Woro Auriyani, Wika Atro Auriyani, Wika Atro Auriyani, Wika Atro Ayrus Suci Ayrus Suci Brama Nalendra Cahyo, Ari Dwi Cahyo, Muhammad Fiqih Nur Damayanti Damayanti Desi Riana Saputri Devia Gahana Cindi Alfian Deviany, Deviany Dian, Saskia Eka Diana Catur Pratiwi Dicky J. Silitonga E Adriansyah Early Akhalisty Inge Abigail Br Simanjuntak Eko Pujiyulianto Endi Adriansyah Faalih Pandu Wicaksono Hadi Fadhilah, Syalsa Fahni, Yunita Fahni, Yunita Fahni, Yunita Fauzi Yusupandi Feerzet Achmad Firjatullah, Ahmad Labib Glen Bower Vebrianto Siregar Hadrah, Hadrah Hariestya Viareco I E Tamba Ihsan Maulana Ahmad Imalia, Calaelma Logys Jabosar Ronggur Hamonangan Panjaitan Khofifah Anggitiya Ningrum Kurniawansyah, Arief Latifah Latifah Listyadevi, Yuniar Luthfia Luki Anugrah Wati Luki Anugrah Wati M P P Simamora M Syaiful M Syaiful M. Syaiful M. Syaiful Marah hadi Marah Hadi MARDIANA Marhadi Marhadi Marhadi Marhadi Marhadi, Marhadi Misbahudin Alhanif Muhamad Fadli Muhammad Abdul Ghony Muhammad Agus Muljanto Muhammad Syaiful Mustafa Mustafa Mutiara Dewi Rukmana, Mutiara Dewi Naldi, Roy Nora, Fitrisia P.T.Z, Luter evons Peppy Herawati Peppy Herawati Permadi Wardani Pradita, Natania Anggreani Pramono, M. Sidik Prasetyo, Tri Wahyu Putri Jesika Adelia Qolbi, M. Khofidul Radinal Rahmadini, Gustia Raqin, M. Rayhan Reni Yuniarti Riztu, Sonia Safitra, Edwin Rizki Sanjaya, Bagus Gelorawan Saputri, Desi Riana Saputri, Desi Riana Sari, Dewi Kurnia Satria, Arysca Wisnu Selvita, Selvita Silvia Devi Eka Putri Silvina, Tris Susilo, Nurul Ajeng Suzana, Asih Syahfutra, Juanda Edo Syahriantoro, Nur Alfi Syalsa Fadhilah Tantri Liris Nareswari Thoriq, Anugrah Tuty Emilia Agustina Uzlifah Janah, Dikri Vania Nur Wahdani Viareco, Hariestya Wardani, Permadi Wari Dony Wati, Luki Anugrah Wika Atro Auriyani Woro Astuti Yuniarti, Reni Yunita Fahni Yusron Darojat Yusupandi, Fauzi Yusupandi, Fauzi