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All Journal JURNAL INTEGRASI PROSES Konversi Jurnal Chemurgy Jurnal Surya Teknika Jurnal Riset Teknologi Pencegahan Pencemaran Industri REACTOR : Journal of Research On Chemistry And Engineering Jurnal Teknologi Kimia Unimal CHEMTAG Journal of Chemical Engineering Journal of Industrial Community Empowerment SAINTI: Majalah Ilmiah Teknologi Industri Jurnal Teknologi Kimia Mineral Journal of Energy, Materials, & Manufacturing Technology Majalah Teknik Industri Communication in Food Science and Technology Journal Of Chemical Process Engineering PATRIOTIK: Jurnal Inovasi dan Pemberdayaan Masyarakat ISTA Online Technologi Journal
Muhammad Zulfikar Luthfi
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Pengaruh Kondisi Temperatur Pirolisis Tandan Kosong Kelapa Sawit Terhadap Komposisi Produk Tar Nury, Dennis Farina; Luthfi, Muhammad Zulfikar; Zullaikah, Siti
REACTOR: Journal of Research on Chemistry and Engineering Vol. 3 No. 1 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v3i1.47

Abstract

Oil palm empty fruit bunch (EFB) is one of the biomass wastes that have a great potential of a bioenergy resource due to its natural properties, such as high calorific value. The conversion of EFB biomass into valuable biofuels can achieved through biochemical and thermochemical processes. Tar (bio oil), the liquid product from the pyrolysis is one of the most attractive biofuels. The study aims to determine the effect of temperature process of pyrolysis EFB on its tar production under droptube reactor. The results showed that maximum tar yield was 43,80% obtained at 500 °C. The EFB tar produced at 500 °C was also determined to have a higher of phenol compound at 51,9%. The high phenolic content indicates its potential to be used for the production of renewable phenolic resins. Hence, the present work of pyrolysis of EFB presents itself as a promising method to produce phenol rich tar (bio-oil) from biomass waste.
Analisis Laju Korosi dalam Berbagai Variasi Media: Larutan Asam Cuka, KOH, Air Laut, dan Akuades Aurellia, Chalista Balqis; Prayoga, Nayaka Sandi; Hardiansyah, Andi; Nury, Dennis Farina; Jerry, Jerry; Luthfi, Muhammad Zulfikar; Ardian, Adna Ivan; Agustina, Amelia Naomi; Putra, Muhamad Iqbal
JURNAL TEKNOLOGI KIMIA MINERAL Forthcoming issue
Publisher : Politeknik ATI Makassaar

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Abstract

Korosi merupakan salah satu masalah utama dalam aplikasi industri yang melibatkan material logam, termasuk seng. Penelitian ini bertujuan menganalisis laju korosi plat seng dalam empat media berbeda, yaitu asam cuka 25%, kalium hidroksida (KOH) 0,1 N, air laut, dan aquadest. Metode yang digunakan adalah kehilangan massa (weight loss method) dengan interval pengamatan 24, 48, dan 72 jam. Sampel plat seng berukuran 5 × 3 × 0,025 cm direndam dalam masing-masing media dan ditimbang untuk menghitung laju korosi. Hasil penelitian menunjukkan laju korosi tertinggi terjadi pada asam cuka sebesar 24,712 mpy, diikuti KOH 0,1 N sebesar 6,234 mpy, air laut sebesar 2,894 mpy, dan terendah pada aquadest sebesar 0 mpy. Tingginya konsentrasi ion H⁺ dalam asam cuka mempercepat reaksi oksidasi seng sehingga meningkatkan laju korosi, sedangkan KOH masih menimbulkan korosi melalui pembentukan endapan Zn(OH)₂. Ion Cl⁻ pada air laut memicu korosi lokal ringan, sementara aquadest yang bersifat netral hampir tidak menimbulkan korosi. Hasil penelitian ini menunjukkan bahwa lingkungan asam memiliki efek korosif yang lebih besar pada logam seng dibandingkan lingkungan basa maupun netral. Penelitian ini memberikan kontribusi penting dalam pemilihan jenis logam yang tahan terhadap korosi dan menjadi dasar untuk mengurangi potensi korosi di industri.
UJI EFEKTIVITAS ADSORBEN DARI KULIT DURIAN TERHADAP KADAR COD DAN TSS PADA LIMBAH CAIR INDUSTRI TAHU Nury, Dennis Farina; Damayanti, Alfira Putri; Deviany, Deviany; Luthfi, Muhammad Zulfikar
Jurnal Chemurgy Vol 9, No 2 (2025): Jurnal Chemurgy-Desember 2025
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v9i2.21739

Abstract

AbstrakPenelitian ini bertujuan untuk mengevaluasi efektivitas adsorben arang aktif dari kulit durian dalam menurunkan kadar BOD dan COD pada limbah cair industri pengolahan rumput laut. Proses adsorpsi dilakukan dengan variasi massa adsorben dan waktu kontak untuk menentukan kondisi optimum. Hasil terbaik diperoleh pada perlakuan massa adsorben 100 gram dengan waktu kontak 2 jam, yang menghasilkan penurunan BOD sebesar 74,4 mg/L (6,06%) dan COD sebesar 224,1 mg/L (21,64%). Penurunan kadar BOD dan COD menunjukkan bahwa peningkatan massa adsorben dan waktu kontak memberikan pengaruh positif terhadap kemampuan adsorpsi. Namun demikian, efektivitas adsorpsi dapat dipengaruhi oleh faktor kejenuhan adsorben, fouling pada permukaan, serta proses desorpsi yang terjadi pada waktu kontak lebih lama. Karakteristik proses adsorpsi dianalisis menggunakan model isoterm Langmuir dan Freundlich. Hasil analisis menunjukkan bahwa data adsorpsi lebih sesuai dengan model isoterm Langmuir, yang mengindikasikan terjadinya adsorpsi monolayer pada permukaan homogen. Dengan demikian, optimasi massa dan waktu kontak diperlukan agar adsorpsi berlangsung efektif dalam menurunkan beban pencemar organik. Kata Kunci: adsorpsi, arang aktif, kulit durian, BOD, COD, isoterm LangmuirAbstract This study aims to evaluate the effectiveness of activated carbon adsorbent derived from durian peel in reducing BOD and COD levels in wastewater from the seaweed processing industry. The adsorption process was conducted by varying the adsorbent mass and contact time to determine the optimum conditions. The best result was achieved with 100 grams of adsorbent and 2 hours of contact time, resulting in a BOD reduction to 74.4 mg/L (6.06%) and COD to 224.1 mg/L (21.64%). The decrease in BOD and COD levels indicates that increasing adsorbent mass and contact time positively influences adsorption efficiency. However, the adsorption performance may be limited by adsorbent saturation, surface fouling, and desorption at prolonged contact times. The adsorption characteristics were analyzed using Langmuir and Freundlich isotherm models. The results revealed that the Langmuir isotherm better described the adsorption process, indicating monolayer adsorption on a homogeneous surface. Therefore, optimizing the adsorbent mass and contact time is crucial to achieving efficient organic pollutant removal. Keywords: adsorption, activated carbon, durian peel, BOD, COD, Langmuir isotherm
EVALUASI DOSING FLOKULAN TERHADAP WAKTU PENGENDAPAN JUICE PADA SINGLE TRAY CLARIFIER DI PT. PEMUKASAKTI MANISINDAH Nury, Dennis; Sufra, Rifqi; Tiara, Mega; Aulia, Siti Aisyah Rahimah; Luthfi, Muhammad Zulfikar
ISTA Online Technologi Journal Vol. 4 No. 2 (2023): Agustus 2023
Publisher : Institut Sains dan Teknologi Al-Kamal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62702/ion.v4i2.88

Abstract

Abstrak Salah satu parameter untuk mendapatkan gula sesuai standar SNI adalah kemurnian nira. Nira merupakan cairan hasil ekstraksi tebu. Nira akan dipisahkan dari kotoran menjadi nira jernih dengan ditambahkan flokulan. Konsentrasi flokulan juga sangat berpengaruh terhadap pengendapan nira. Penelitian ini bertujuan menentukan dosis flokulan yang efektif untuk meningkatkan laju pengendapan kotoran nira dan mengetahui dosis flokulan yang dapat mempengaruhi kualitas clear juice atau nira encer. Pengujian yang dilakukan meliputi pengujian jar test, pengukuran turbiditas, pH dan pengamatan warna. Hasil penelitian menunjukkan bahwa dosis flokulan dapat mempengaruhi kualitas clear juice yang dihasilkan. Berdasarkan tiga aspek yaitu pH clear juice, laju pengendapan dan turbiditas, dosing flokulan yang baik yaitu pada 7 ppm dengan kondisi pH awal 7,8 Kata kunci: clear juice, flokulan, jar test, nira, turbiditas Abstract One of the parameters to obtain sugar according to SNI standards is the purity of nira. nira is the liquid extracted from sugarcane. Nira will be separated from impurities into clear nira by adding flocculants. Flocculant concentration is also very influential on the precipitation of nira. This study aims to determine the dose of flocculant that is effective to increase the rate of precipitation of nira impurities and determine the dose of flocculant that can affect the quality of clear juice or dilute nira. Tests conducted include jar test, turbidity measurement, pH and color observation. The results showed that the dose of flocculant can affect the quality of clear juice produced. Based on three aspects, namely clear juice pH, settling rate and turbidity, good flocculant dosing is at 7 ppm with initial pH conditions of 7.8. Keywords: clear juice, flocculant, jar test, sugarcane juice, turbidity
PENGARUH MASSA KARBON AKTIF DAN KONSENTRASI ADSORBAT DALAM PENYERAPAN ZAT WARNA METILEN BLUE Nury, Dennis; Luthfi, Muhammad Zulfikar; Deviany, Deviany; Achmad, Feerzet; Panjaitan, Jabosar Ronggur Hamonangan
ISTA Online Technologi Journal Vol. 4 No. 2 (2023): Agustus 2023
Publisher : Institut Sains dan Teknologi Al-Kamal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62702/ion.v4i2.89

Abstract

In this study, the effect of activated carbon mass and methylene blue solution concentration on adsorption capacity, the length of time required to reach equilibrium, and isothermal modeling of activated carbon material in the adsorption process were studied. The variables used are the mass of activated carbon as much as 100 mg, 75 mg, and 50 mg and the concentration of methylene blue solution of 20, 40, 60, 80, and 100 ppm. The adsorption process in the three mass variations occurred at an optimum contact time of 80 and 90 minutes with an adsorption percentage of 99%. Adsorption of methylene blue dye by activated carbon from durian peel follows Freundlich isothermal modeling with a K value of 15846.44 mg/g and 1/n of 23.666 which shows an indicator of concentration dependence of the amount of energy associated with the adsorption process.
Co-Authors Adelia, Putri Jesika Agustina, Amelia Naomi Ahmad Rifqiyan Farohi Aini, Apsari Puspita Apsari Puspita Aini Ardian, Adna Ivan Arum, Amalia Sekar Aulia, Siti Aisyah Rahimah Aurellia, Chalista Balqis Auriyani, Wika Atro Betariani, Khairunisa Choerudin, Choerudin Chrystover, Endrigo Damayanti, Alfira Putri Dennis Farina Nury Deviany, Deviany Eko Supriadi Enny Nurmalasari Fahlovi, Oldy Farohi , Ahmad Rifqiyan Febriyanto, Pramahadi Feerzet Achmad Ferry Ikhsandy Fitriyani, Vira Handoko, Yohanes Tri Hardiansyah, Andi Harmiwati N. H Hasnah Ulia Hibrah Hibrah Hibrah, Hibrah Jabosar Ronggur Hamonangan Panjaitan Janah, Dikri Uzlifah Jerry Jerry Jerry, Jerry Khairati, Miftahul Kurniawati, Intan Wahyuning Manurung, Martin Sugiarto Maulana, Akmal Mayastuti, Sherina Miftahul Khairati Miftahurrahmah Miftahurrahmah, Miftahurrahmah Monita Pasaribu Muhammad Nasyarudin Iqbal, Muhammad Nasyarudin N. H. , Harmiwati N. H., Harmiwati N.H, Harmiwati Nasyarudin Iqbal, Muhammad Naufal, Hafidz Ningrum, Khofifah Anggitiya Nugroho , Muhammad Erwin Cahyo Nugroho, Muhammad Erwin Cahyo Nury , Dennis Farina Nury, Dennis Oktria, Dandi Permadani, Resi Levi Prayoga, Nayaka Sandi Puji Rahayu Putra, Muhamad Iqbal Putra, Renold Ramadhan Ramadhan, Aldi Dwi Renold Ramadhan Putra Rifqi Sufra RR. Ella Evrita Hestiandari Safitri, Nurul Ulfa Setiadi, Tjandra Siti Zullaikah Supriadi, Eko Surya, Dhanu Fransgio Pratama Sutri, Reni Tiara, Mega Tri Widjaja Tutuka, Rachmadi Ulia, Hasnah Variyana, Yeni Yahya , Agung Kurnia Yahya, Agung Kurnia Zulkipli, Rohiman Ahmad