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All Journal Jurnal Ilmu Kebencanaan : Program Pascasarjana Unsyiah Elkawnie Jurnal Litbang Industri Warta IHP (Warta Industri Hasil Pertanian) ALCHEMY Jurnal Penelitian Kimia Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal ABDINUS : Jurnal Pengabdian Nusantara Jurnal Litbang Industri Jurnal Inovasi Ramah Lingkungan JURNAL REKAYASA KIMIA & LINGKUNGAN
Cut Meurah Rosnelly
Chemical Engineering Department Universitas Syiah Kuala
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Utilization of Natural Extracts as Corrosion Inhibitors in the Seawater Environment Alam, Pocut Nurul; Rosnelly, Cut Meurah; Karo karo, Justaman Arifin; Ilhamdi, Akhar; Soekarno, Raiyan; Aslam, Izzan Nur
Jurnal Rekayasa Kimia & Lingkungan Vol 16, No 2 (2021): Jurnal Rekayasa Kimia & Lingkungan (December, 2021)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v16i2.18156

Abstract

Infrastructures in coastal area are mostly made of metal which is susceptible to corrosion due to direct contact with the seawater. The Seawater greatly affects the corrosion rate of metals because it contains chloride ions which can penetrate metal surface. The process of corrosioncan beinhibited or slowed by decreasing the corrosion rate in one way, namelythe addition ofcorrosion inhibitors derived from natural materials containing tannin compounds. This study proposed organic corrosion inhibitors which were derived from natural material extracts (coffee leaves andcatappaleaves), the effect of time variations on the efficiency of organic inhibitors was investigated, and the efficiency of each inhibitor organic was compared. The corrosion rate with and without inhibitors was analysed by using the method of weight loss. The results showed that the corrosion rate canbe reducedby adding the natural ingredients extract. The addition of 2% concentration coffee leaves extract resulted in the lowest corrosion rate with the addition of 0.00226 mmpy. The addition ofcatappaleaves extract concentration as much as 2% yield the lowest corrosion rate with the addition of 0.0012 mmpy. The highest efficiency of inhibition system was obtained by using 2%catappaleaves extract at 14 days soaking time at 69.23%, and the lowest by using 1% coffee leaves extract.
Transesterifikasi Minyak Biji Buta-Buta menjadi Biodiesel pada Katalis Heterogen Kalsium Oksida (CaO) Zaki, Muhammad; Husin, M.T., Husni; Alam, Pocut Nurul; Darmadi, Darmadi; Rosnelly, Cut Meurah; Nurhazanah, Nurhazanah
Jurnal Rekayasa Kimia & Lingkungan Vol 14, No 1 (2019): Jurnal Rekayasa Kimia & Lingkungan (June, 2019)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v14i1.13495

Abstract

Penelitian ini menggunakan katalis padat CaO untuk reaksi transesterifikasi minyak biji buta-buta menjadi biodiesel. Minyak biji buta-buta diekstraksi menggunakan alat press. Katalis CaO disiapkan dari cangkang kerang dengan cara dipijar pada suhu 850 oC. Sampel katalis dikarakterisasi dengan metode scanning electron microscopy (SEM) dan x-ray diffractometer (XRD). Katalis cangkang kerang memiliki ukuran partikel antara 200-2000 nm. Hal ini karena pemanasan cangkang pada 850 oC menyebabkan terjadi aglomerasi. Dari rekaman XRD teridentifikasi bahwa katalis didominasi oleh senyawa CaO dan terdapat sedikit CaCO3. Reaksi transesterifikasi dilangsungkan dalam reaktor batch dengan variasi suhu (55 oC, 60 oC, 65oC, dan 70oC), rasio metanol terhadap minyak: 3:1, 6:1, 9:1, 12:1, dan 15:1. Reaksi dilangsungkan selama 3 jam dan katalis didispersi 6 % berat dari minyak. Perolehan metil ester maksimum dicapai 96,7% pada kondisi reaksi, yaitu: molar metanol:minyak 12:1 dan suhu reaksi 65 oC. Karakteristik biodiesel hasil penelitian ini memenuhi sifat-sifat bahan bakar berkualitas tinggi sesuai dengan standar SNI dan ASTM. Proses transesterifikasi minyak biji buta-buta dan metanol menggunakan CaO sebagai katalis basa heterogen layak diaplikasikan secara komersial untuk produksi biodiesel dalam skala industri.
Characterization of Polyether Sulfone (PES) Membranes Filled with Activated Carbon from Jatropha Seed Shell as Aditif for Elimination Peroxide Number and Free Fatty Acid in Used Cooking Oil Aprilia, Sri; Rosnelly, Cut Meurah; Ramadhani, Sri; Novarina, Lia; Fathanah, Umi; Djuned, Fauzi Muhammad; Amin, Amri
Jurnal Rekayasa Kimia & Lingkungan Vol 13, No 1 (2018): Jurnal Rekayasa Kimia & Lingkungan (June, 2018)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v13i1.10471

Abstract

Minyak goreng adalah bahan konsumsi yang penting dalam rumah tangga dan industri makanan. Sayangnya, sering digunakan berulang kali karena mahal. Tindakan ini mungkin tidak hanya berbahaya bagi kesehatan manusia, tetapi juga mempengaruhi nilai gizi dan mengurangi kualitas makanan. Kualitas reduksi ditunjukkan dengan meningkatnya jumlah peroksida dan jumlah asam lemak. Penelitian ini menggunakan membran PES yang dimodifikasi dengan penambahan karbon aktif dari kulit biji jarak sebagai aditif untuk mengurangi fouling dalam minyak goreng olahan. Membran diproduksi dengan metode presipitasi perendaman. Sementara, karbon diaktivasi dengan larutan KOH 0,1% dan dipanaskan dalam furnace pada temperatur 600oC.Membran dan karbon aktif dianalisis menggunakan metode FTIR. Analisis SEM menghasilkan membran asimetris dengan lapisan atas berpori dan lapisan bawah padat. Tiga campuran dalam penelitian ini dibuat dengan melarutkan PES yang dimodifikasi dengan karbon aktif pada 0%,3%, dan 5% (b/b) dalam N-methylpirrolidone. Pada penambahan karbon aktif 5% (b/b) dalam campuran membran menghasilkan koefisien permeabilitas tertinggi (L/P) sebesar 9,682 L m2bar-1h-1, pengurangan bilangan peroksida adalah 45% dan pengurangan asam lemak bebas adalah 72% dapat tercapai.
Pengolahan Limbah Cair Laundry Menggunakan Membran Selulosa Diasetat Berbasis Selulosa Pulp Kayu Sengon (Paraserianthes falcataria) Setiawan, Vera Roni; Rosnelly, Cut Meurah; Darmadi, Darmadi
Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 3 (2013): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v9i3.782

Abstract

The improvement of laundry activity brought a negative effect on the environment because laundry wastewater have a high content pollutants such as phosphate, surfactants, mineral, nitrogen, COD and other components, so the treatment is needed before being discharged into terristorial water. Laundry wastewater treatment has been conducted by membrane technology. Preparation of cellulose diacetate membranes with ultrafiltration process had be done by phase inversion using dimethylformamide (DMF) as a solvent. The filtration experiment showed that the highest membrane flux was 77,408 L/m2.h at TMP 3 bar. While the lowest flux at TMP 1 bar was 55.649 L/m2.h. Rejection of membrane ultrafiltration for parameters of COD, phosphate, and surfactant were 67%, 72%, and 63% respectively.Keywords: cellulose diacetate membranes, laundry wastewater, flux, rejection
Pengaruh Rasio Aditif Polietilen Glikol Terhadap Selulosa Asetat pada Pembuatan Membran Selulosa Asetat Secara Inversi Fasa Rosnelly, Cut Meurah
Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 1 (2012): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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

Abstract

Preparation of cellulose acetate (CA) membranes with ultrafiltration process had be done by phase inversion using dimethylformamide (DMF) as solvent. Poliethylene glycol (PEG) 1450 Da, as additive, was added with 10, 20, and 30% rasio of celluose acetate. The thin film of polymer solution was immersed on water bath coagulation at room temperature. The analysis of membrane morphology structure by Scanning Electron Microscope (SEM) JSM 5310 LV, Jeol-Japan showed the asymetric of membrane. The addition of PEG can improve the performance of the membrane. In resulting flux is higher than membranes without PEG. Increasing of PEG/CA ratio resulted in the higher flux with lower of rejection. The higher fluxes of water, dextran, and BSA are 146, 114, and 96 L/m2hr with 52,938 and 75,716% rejection for dextran and BSA.Keywords: cellulose acetate membranes, polyethylene glycol, ultrafiltration
Wastewater Processing of Chicken Slaughterhouses Using Combination of Trickling Filter and Rotating Biological Contactor Handriani, Handriani; Faisal, Muhammad; Rosnelly, Cut Meurah
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.249-261

Abstract

This research was conducted to explore the effectiveness of combined Trickling Filter (TF) and Rotating Biological Contactor (RBC) method in processing liquid waste from chicken slaughterhouses through local and economical media. Microorganisms were grown by inserting liquid waste into a TF tank containing gravel, used ceramics, coconut shells, and pumice. Subsequently, liquid waste flowed into a rotating biological contactor added with local microorganisms from stale rice and fermented banana stems. Waste treatment was carried out with variations in retention time of 1, 3, and 6 h. The results showed that at 6 h, the organic compound decreased significantly. The removal efficiency obtained was 87.05%, 82.11%, 90.51%, 22.57%, 79.36%, and 88.66% for Biological Oxygen Demand, Chemical Oxygen Demand, Total Suspended Solids, Total Dissolved Solids, Turbidity, and Ammonia, respectively. This high efficiency was supported by the collaboration between the activity of microorganisms attached to the TF biofilm and the use of local microorganisms in decomposing organic compounds in the rotating biological contactor. The combination of the two methods has been proven to help waste treatment process from chicken slaughterhouses in an environmentally friendly and efficient manner. Keywords: Biofilm, Chicken slaughterhouse waste, Local microorganisms, Rotating biological contactor, Trickling filter.
Degradasi Sampah Biomassa dengan Bioaktivator EM4 sebagai Bentuk Pengendalian Limbah di Desa Neuheun Lubis, Mirna Rahmah; Fathanah, Umi; Rosnelly, Cut Meurah; Aflah, Nurul
Jurnal ABDINUS : Jurnal Pengabdian Nusantara Vol 5 No 2 (2021): Volume 5 Nomor 2 Tahun 2021
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/ja.v5i2.15549

Abstract

Waste that is not managed properly in Neuheun Village, Aceh Besar Regency, can cause health and environment problems. Therefore, this service activity aims to provide the people of Neuheun village with the knowledge and skills of making organic fertilizer in a simple way. The fertilizer making is carried out through short training with raw materials that are reachable by the village community. The target of theses activities is housewives in the village, the majority of whom do not work and spend their time taking care of the household. Apart from filling the time, this activity can add insight, self-efficacy, and improve family health and economic life. These activities were attended by 20 housewives who are members of the recitation of the women of Neuheun Village. These activities take place through counseling and direct training stages. Counseling was provided through the distribution of reading materials and delivery of materials followed by the organic fertilizer making. The evaluation results show the enthusiasm of the participants in participating in the training, and they are able to make organic fertilizer. Making fertilizer is expected to be a side business and increase public knowledge about the benefits of organic fertilizers.
Co-Authors - Darmadi -, Kaseno Aflah, Nurul - Akhar Ilhamdi Alfina Suci Cahyani Amri Amin Aulia Rahmad Lubis Aziz Darwis, Abdul Darmadi Darmadi Darmadi Darmadi Devi Rahmanda Djuned, Fauzi Muhammad E, Muhammad Aqilussalim El-Bahy, Zeinhom M Erliza Noor FARID MULANA Handriani, Handriani Husin, Husni - Husni - Husin Husni Husin Husni Husin, M.T. Ilhamdi, Akhar Izzan Nur Aslam Justaman Arifin Karo karo Karo karo, Justaman Arifin Lia Meiriza - Meiriza M. Nasruddin Mariska, Rafi Mauliza, Nadia Putri Meiriza, Lia Meiriza - Meuthia Busthan Mirda, Erisna Mirna Rahmah Lubis Muhammad Aqilussalim E Muhammad Dani Supardan Muhammad Dani Supardan Muhammad Faisal Muhammad Faisal Muhammad Irsyad Mahadi Lubis Muhammad Zaki Muhammad Zaki Mukramah Yusuf Nadia Putri Mauliza Novarina, Lia Nurhazanah Nurhazanah Nurhazanah, Nurhazanah Nurul - Aflah Nurul Aflah Pocut Nurul Alam Raiyan Soekarno Ramadhani, Sri Rina Hazliani Satriana Satriana Soekarno, Raiyan Sri Aprilia Sri Mulyati Suraiya Kamaruzzaman Suriaini, Nanda Syariful Maliki Syawaliah Muchtar Umi Fathanah Vera Roni Setiawan Vera Roni Setiawan Zaki, Muhammad - Zeinhom M El-Bahy Zuhra