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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Riset Kimia Journal of Bioprocess Chemical and Environmental Engineering Science BATOBO: Jurnal Pengabdian Kepada Masyarakat
Rozanna Sri Irianty
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Riau Kampus Binawidya Jl. HR. Subrantas Km. 12,5 Pekanbaru 28294
Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Other

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PEMBUATAN KOMPOS DARI LIMBAH PADAT (SLUDGE) PABRIK PULP DAN PAPER Sembiring, Maria Peratenta; Irianty, Rozanna Sri
Jurnal Riset Kimia Vol 5, No 2 (2012): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v5i2.213

Abstract

One of the method to use pulp and paper mill sludge was convert it become a compost. This research result showed that time variation of compost have different physical and organic matter properties. In physical properties, 3 months of compost had 12.57% moisture content, while organic matter contain 10.56% carbon, 1.07% nitrogen, and 9.87 C/N ratio. For 4 months compost had 6.79% moisture content, 11.88% carbon, 0.91% nitrogen, and 13.05 C/N ratio. Nutrients content from both composts appropriate with the standard value of National Standarisation Body.
PENGARUH KONSENTRASI INHIBITOR EKSTRAK DAUN GAMBIR DENGAN PELARUT ETANOL-AIR TERHADAP LAJU KOROSI BESI PADA AIR LAUT Irianty, Rozanna Sri; Sembiring, Maria Peratenta
Jurnal Riset Kimia Vol 5, No 2 (2012): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v5i2.218

Abstract

The important properties to overcome the corrosion are safe, available, biodegradable, low cost, and environmental friendly. Gambier leaves extract is one of the inhibitor that have environmental friendly properties. This study aims to determine the effectiveness of extract using ethanol-water to reduce the corrosion rate. Soaking of ferrous iron plate samples in seawater media have done for corrosion test. Agitator and aerator motors at turn-on and conducted a series of immersion with varying contact time 5, 10, 15, and 20 days. After the time up next ferrous iron plate samples were cleaned, dried, and weighed. Experiment was repeated by adding a inhibitor heavy leaves gambier extract with varying leaves gambier extract, 1000, 3000, and 5000 ppm. Soaking iron plate samples performed at varying pH at 3(acid), 6 (netral), and 9 (alkaline). Calculation is then performed and the rate of corrosion inhibition efficiency gambier leaves extract with ethanol-water solvent. On the immersion of iron plate without inhibitor, the result that the longer the contact time, the weight of the iron plate was reduced. The results showed the addition of inhibitors of leaves extract gambier with ethanol-water solvent into the corrosive media can reduce the rate of corrosion. Inhibitor of leaves extract gambier using ethanol-water solvent effective to reduce the rate of corrosion inhibitor at a concentration of 5000 ppm and contact time of 20 days with the lowest value of the corrosion rate is 0.000503 g/cm2 days in seawater media at initial pH 7.9. Gambier extracts gave greatest inhibition efficiency about 60.345% obtained at a concentration of 5000 ppm inhibitor and 20 days contact time.
Modifikasi Kulit Telur Puyuh Dan Fly Ash Menjadi Katalis Cao/Fly Ash Untuk Reaksi Transesterifikasi Minyak Sawit Off Grade Menjadi Biodiesel Simbolon, Kristin Madelin; Helwani, Zuchra; Irianty, Rozanna Sri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Quail eggshells CaO based catalyst with the addition of fly ash has been successfully synthesized for production of biodiesel from palm oil off-grade. Quail eggshells waste modificated of solid base catalyst through calcination, hydration, dehydration methods with fly ash through impregnation method to load calcium oxide with quail eggshells as precursor.The catalyst was characterized by X-Ray Diffraction (XRD) and basic strength while the characterization of biodiesel was by Gas Chromatography-Mass Spectrometry (GC-MS). The catalyst was synthesized by calcining the quail eggshells as source of CaCO3 at calcination temperature of 900 oC for 2,5 hours. The CaO was then supported by fly ash. The catalyst with the highest catalytic activity was obtained at dehydration temperature of 500 oC and the dehydration time of 4 hours with transesterification reaction conditions of a molar ratio of methanol/oil 6:1, catalyst concetration of 6%-b oil and temperature of 70 °C for 2 hours with yield biodiesel results reached 85,12%.Keyword: biodiesel, calcium oxide, catalysts, fly ash, transesterification
Aplikasi Hidroksiapatit Sebagai Adsorben Kolesterol Hidayat, Muhammad Ariful; Azis, Yelmida; Irianty, Rozanna Sri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Hydroxyapatite is a natural mineral form of calcium apatite and is a major inorganic component of human hard tissue, such as bones and teeth. Synthetic hydroxyapatite, is widely used as implant and filler material for bone and tooth decay, catalyst, carrier catalyst and adsorbent. Synthetic hydroxyapatite has a large and porous surface area, which makes it very advantageous to be used as an adsorbent. Hydroxyapatite has been widely used as an adsorbent for alkali metals and heavy metals. In this study synthetic hydroxyapatite is used as an adsorbent for cholesterol compounds in the solvent of hexane-ethyl acetate mixture. The study was carried out with variations of hydroxyapatite mass (0.5, 0.75, and 1.0 gram) and cholesterol concentrations (50, 75 and 100 ppm) at a stirring rate of 100 rpm at room temperature. Adsorbed cholesterol was then analyzed using a UV-Vis spectrophotometer. From UV-Vis spectrophotometer analysis,it was found that be known the efficiency of adsorption process reaches 48.9% and the adsorption capacity is up to 6.87 mg / gram.Keywords: adsorbent, cholesterol, hydroxyapatite
Pembuatan Briket Dari Kulit Kacang Tanah Dan Kulit Kopi Dengan Getah Damar Sebagai Perekat Manalu, Bonita Restana; Irianty, Rozanna Sri; Zultiniar, Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Bio-charcoal briquettes are one of the ingredients of fuel that derived from biomass. Biomass is one of the sources of energy that can be replaces. One of biomass that is used in this research is coffee skin and peanut skin. The research is aimed to utilize waste biomass as material fuel alternatives and determine the best comparison of coffee skin and peanut skin. This research is carried out a comparison between coffee skin and peanut skin with a ratio is 1:1, 1:2, 1:3, 2:1 and 3:1 with the amount of damar resin 20% w/w. tests were carried out the water content, ash content, volatile matter, heat value, and rate of combustion. The result of the analysis are obtained: the lowest water content for the ratio 3:1 at 12.85%, the lowest ash content at the ratio 2:1 at 7.07%, the lowest volatile matter for the ratio 1:3 at 48.26%, the highest heating value for the ratio 3:1 at 7151.32 cal/g and the best rate of combustion for the ratio 1:1 at 0.1716 g/min. Keywords: Briquette Charcoal, Coffee Skin, Damar, Peanut Skin
Pelatihan Pembuatan Hand Sanitizer Dari Daun Sirih dan Jeruk Nipis di Lingkungan RT 05 RW 18 Kelurahan Tangkerang Tengah Kecamatan Marpoyan Damai Kota Pekanbaru Muria, Sri Rezeki; Irianty, Rozanna Sri; Khairat; Hamzah, Nirwana; Meldha, Zuqni
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 2 No 1: BATOBO: Juni 2024
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.2.1.9-16

Abstract

Masa pandemi Covid-19 saat ini yang sangat menuntut kita untuk selalu menerapkan protokol kesehatan (Prokes) dimanapun kita berada agar pandemi segera berakhir dan semua tetap sehat. Ibu-ibu rumah tangga adalah orang yang sangat penting untuk menjalani prokes didalam rumah tangga agar semua anggota keluarga tetap sehat. Tujuan kegiatan pelatihan pembuatan hand sanitizer secara alami dari daun sirih dan jeruk nipis adalah meningkatkan pengetahuan ibu-ibu rumah tangga tentang pentingnya prokes, khasiat bahan-bahan alam di sekitar, mampu membedakan hand sanitizer alami dan yang beralkohol serta terampil membuat hand sanitizer alami dirumah. Metode yang digunakan adalah ceramah, tanya jawab, diskusi, dan layanan bimbingan. Hasil yang diperoleh menunjukkan bahwa ibu-ibu rumah tangga peserta pelatihan telah memiliki keterampilan membuat hand sanitizer alami serta menghasilkan produk hand sanitizer yang siap pakai untuk digunakan didalam keluarga, tetangga dan saudara.
Efektivitas Adsorpsi Logam Berat (Fe2+) Menggunakan Arang Aktif Batang Bambu (Bambusoideae) Teraktivasi NaOH Al'farisi, Cory Dian; Irianty, Rozanna Sri; Damanik, Gery Andreas; Herman, Syamsu
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 5 No 2 (2024): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.5.2.60-68

Abstract

The environmental pollution that was the center of attention was industrial wasted. Adsorption had been shown to been a more effective method for absorbing heavy metals from wastewater. Adsorption is the absorption of a substance on the surface of another substance. The adsorbent commonly used in adsorption is activated charcoal. Yellow bamboo is a material that could produced charcoal by carbonization. The research aimed to make adsorbents from bamboo, to characterize activated charcoal according to SNI 06-3730-1995. Bamboo stem activated charcoal capacity and calculated the effectiveness of charcoal adsorbents. Bamboo stems actively absorb iron ions (Fe2+). Variations in this process was particle sizes of 40+ 60-, 60+ 80- and 80+ 100- mesh and column diameter sizes of 2, 3 and 4 cm. The analysis results for the characteristics of the activated charcoal complied with SNI provisions, showing a moisture content of 4%, an ash content of 8%, and an iodine adsorption capacity of 1002.45 mg/g.. The best results in this research were the adsorption process at varying particle sizes of 80+ 100- mesh with a column diameter of 2 cm with an adsorption capacity value of 0.896 mg/g and an effectiveness of 90.48%. Variations in column diameter and particle size used affect the adsorption capacity and effectiveness of the adsorption process.
Peningkatan Ketahanan Lingkungan Desa Batu Belah Melalui Penanaman Artocarpus integer sebagai Pencegah Banjir Sembiring, Maria Peratenta; Heltina, Desi; Irianty, Rozanna Sri; Fermi, Muhammad Iwan; Yolanda, Yogi; Suhendri, Suhendri
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 1: BATOBO: Juni 2025
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.3.1.31-39

Abstract

Desa Batu Belah, Kecamatan Kampar, Riau, mengembangkan strategi pencegahan banjir berkelanjutan melalui penanaman Artocarpus integer (cempedak). Tanaman ini dipilih karena akarnya yang kuat dapat menyerap air dan mencegah erosi. Selain itu, cempedak juga berpotensi sebagai sumber ekonomi lokal melalui pengolahan produk makanan. Kegiatan ini dilakukan secara gotong royong, memperkuat kebersamaan masyarakat dan meningkatkan kesadaran lingkungan. Hasilnya adalah peningkatan ketahanan lingkungan dan potensi ekonomi masyarakat. Strategi ini menunjukkan bahwa penanaman Artocarpus integer dapat menjadi solusi efektif untuk mengurangi risiko banjir dan meningkatkan kualitas hidup masyarakat. Dengan demikian, desa ini menjadi model bagi pengembangan masyarakat yang berkelanjutan dan peduli lingkungan, serta meningkatkan keindahan dan keamanan lingkungan.
Co-Authors Al'farisi, Cory Dian Damanik, Gery Andreas Desi Heltina Hamzah, Nirwana Hidayat, Muhammad Ariful Khairat M. Iwan Fermi Manalu, Bonita Restana Maria Peratenta Sembiring Silvia Reni Yenti Simbolon, Kristin Madelin Sri Rezeki Muria Suhendri Suhendri Syamsu Herman Yelmida Azis Yolanda, Yogi Zuchra Helwani, Zuchra Zultiniar, Zultiniar Zuqni Meldha