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All Journal Science and Technology Indonesia Jurnal Teknik Kimia
Retno Suryani
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics

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Pengaruh komposisi aditif sekam padi terhadap ukuran pori, luas permukaan dan porositas membran keramik Sisnayati; Ria Komala; Retno Suryani
Jurnal Teknik Kimia Vol 24 No 3 (2018): Jurnal Teknik Kimia
Publisher : Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya

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Abstract

Penelitian ini bertujuan untuk membuat membran keramik dengan penambahan bahan aditif sekam padi pada berbagai komposisi dan mempelajari pengaruh penambahan aditif tersebut terhadap ukuran pori, luas permukaan dan porositas membran yang dihasilkan. Membran keramik dirancang berbentuk tube, dibuat dari campuran tanah liat, serbuk besi dan sekam padi dengan diameter dalam 5 cm, diameter luar 6 cm, ketebalan 1 cm dan panjang 25 cm. Membran keramik setelah dicetak terlebih dahulu, kemudian dikeringkan pada temperatur kamar selama 7 hari, selanjutnya disintering pada temperatur 900°C selama 9 jam.  Membran  yang diperoleh  dianalisis morfologi permukaannya  dengan  analisis SEM-EDS dan analisis BET.  Dari hasil uji SEM diperoleh bahwa semakin banyak penambahan sekam padi, pori yang terbentuk juga akan semakin banyak dan terlihat masih kurang seragam (asimetrik), berstruktur random dan terdistribusi merata di permukaan. Sedangkan dari hasil uji BET, semakin banyak sekam padi yang ditambahkan pada membran maka ukuran pori dan porositas membran akan semakin besar namun  luas permukaannya  akan  semakin  kecil.  Membran  yang  memiliki  ukuran  pori  yang  paling  kecil  adalah membran yang memiliki komposisi 87.5% tanah liat, 10% aditif sekam padi dan 2.5% serbuk besi, yaitu 2,8 µm, dengan luas permukaan 45,38 m2/g dan porositas 35,95%.
The Effect of Rice Husk Addition as Additive Materials on the Characterization of Ceramic Membrane and Their Application on Water River Treatment Process Sisnayati Sisnayati; Ria Komala; Retno Suryani
Science and Technology Indonesia Vol. 4 No. 1 (2019): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (894.029 KB) | DOI: 10.26554/sti.2019.4.1.11-17

Abstract

This study aims to study how the effect of adding rice husk additives to the characteristics of ceramic membranes with various variations of membrane-forming component composition in terms of surface morphology and pore size of the membrane produced. This research is expected to be used by the community as an alternative treatment of river water into clean water. In this study, the variables studied were the composition of the membrane constituent namely clay, iron powder and rice husk as an additives. The ceramic membrane was designed in the form of a tube, made from a mixture of clay, iron powder and rice husk with a diameter of 5 cm, an outer diameter of 6 cm, a thickness of 1 cm and a length of 25 cm. Housing membrane was made of glass fiber with an outer diameter of 9 cm, an inner diameter of 8.5 cm and a length of 30 cm. Making ceramic membranes were from clay, iron powder and rice husk with a ratio of 87.5%, 2.5%, 10%, 77.5%, 2.5%, 20% and 77.5%, 2.5%, 15%. The river water was treated by flowing to the complete separation process. It was taken every 15 minutes, 30 minutes, 45 minutes, 60 minutes, 75 minutes, 90 minutes. Every sampling, the permeate volume was determined. Permeat events were analyzed for chemical parameters in the form of iron (Fe), Manganese (Mn) and Zinc (Zn). Based on the SEM-EDS analysis on the ceramic membrane produced shows that the membrane was classified in the microfiltration membrane group with a random and asymmetrical pore size and structure. According to the BET analysis on ceramic membranes shows that the best ceramic membrane produced in this study is C ceramic membrane with a clay composition of 87.5%; 10% of rice husk; and 2.5% of iron powder with a pore size of 2.8 μm and a large surface area of ​​45.38 m2/g. The difference in pressure of 2 bars gives the best results in reducing levels of contaminant compounds contained in river water with a percentage of Fe reduction of 92.18%, Mn of 89.23%, and Zn of 99.80%.
Co-Authors Ria Komala Sisnayati Sisnayati