Adisalamun Adisalamun
Department of Chemical Engineering, Syiah Kuala University, Darussalam, Banda Aceh, 23111, Indonesia

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Adsorpsi Surfaktan Nonionik Alkil Poliglikosida pada Antar muka Fluida-Fluida Adisalamun, Adisalamun; Mangunwidjaja, Djumali; Suryani, Ani; Sunarti, Titi Candra; Arkeman, Yandra
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 | Full PDF (164.412 KB)

Abstract

Nonionic surfactants have been used extensively in various industrial applications such as cleaning, personal care, crop protection, paint and coating, textile finishing, emulsion stabilization, food and leather processing. In this study, we have studied the adsorption of three nonionic surfactants of alkyl polyglycoside, namely commercial APG from Cognis and APG produced from glucose as well as APG synthesized from sago starch, at fluid–fluid interfaces. The variation of surface and interfacial tension with the concentration of surfactant in the bulk was studied, and the data were fitted using a surface equation of state derived from the Langmuir isotherm. The agreement between ?(c) data and Langmuir isotherm model was very good.Keywords: adsorption, air/water interface, interfacial tension, surface tension
Pengaruh Nozzle Terhadap Aspek Hidrodinamika Kinerja Kolom Gelembung Pancaran Nugroho, Didiek Hari; Adisalamun, Adisalamun; Machdar, Izarul
Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 2 (2014): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (29.684 KB) | DOI: 10.23955/rkl.v10i2.2424

Abstract

Kolom gelembung pancaran merupakan salah satu alat perpindahan massa antara fasa gas dan cair. Penelitian ini bermaksud untuk mempelajari pengaruh nozzle terhadap aspek hidrodinamika antara lain: kedalaman penetrasi gelembung (Z), holdup gas (eg), dan laju alir volumetrik gas entrainment (Ql) yang terjadi dalam kolom gelembung pancaran. Variabel proses yang dipelajari antara lain laju alir volumetrik cairan (10-50 L/menit), ukuran diameter nozzle (0,008-0,0127 m), dan tinggi nozzle (0,125-0,25 m). Hasil penelitian memperlihatkan bahwa ukuran diameter nozzle semakin kecil dan laju alir volumetrik cairan yang semakin besar menghasikan laju alir volumetrik gas entrainment, holdup gas, dan kedalaman penetrasi gelembung yang semakin besar.
Effect of Drying and Hydrodistillation Time on the Amount of Ginger Essential Oil Hasmita, Ida; Adisalamun, Adisalamun; Nurul Alam, Pocut; Satriana, Satriana; Mahlinda, Mahlinda; Supardan, M. Dani
International Journal on Advanced Science, Engineering and Information Technology Vol 5, No 5 (2015)
Publisher : International Journal on Advanced Science, Engineering and Information Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (714.395 KB) | DOI: 10.18517/ijaseit.5.5.567

Abstract

The objective of this research is to study the effect of drying and hydrodistillation time on the amount of ginger (Zingiber officinale Rosc.) essential oil. For this purpose, a hydrodistillation laboratory-scale extraction unit was employed. The fresh ginger were dried by air drying for 1, 2 and 4 days at ambient temperature. In general, ginger oil obtained in the form of bright yellow liquid with a distinctive aroma of ginger. The experimental results showed that the yields of the ginger essential oils were affected by the drying time of raw material and hydrodistillation times. The obtained essential oil was analyzed by gas chromatography–mass spectrometry and 12 compounds were identified. The major compounds of ginger essential oil were 1,8-cineole, geranial, geraniol, camphene and neral.
Aplikasi Metode Advance Oxidation Process (AOP) Fenton pada Pengolahan Limbah Cair Pabrik Kelapa Sawit Yulia, Ruka; Meilina, Hesti; Adisalamun, Adisalamun; Darmadi, Darmadi
Jurnal Rekayasa Kimia & Lingkungan Vol 11, No 1 (2016): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1026.361 KB) | DOI: 10.23955/rkl.v11i1.4098

Abstract

Penelitian ini bertujuan untuk mengetahui kemampuan proses Fenton dalam menurunkan kadar chemical oxygen demand (COD) dan kadar total suspended solid (TSS) dari limbah cair pabrik kelapa sawit (PKS) dan menentukan kondisi optimum dari parameter yang digunakan dengan Response Surface Methodology menurut Box- Behnken design. Sampel diambil pada keluaran pertama kolam anaerobik ketiga dari instalasi pengolahan limbah cair kelapa sawit yang mengandung nilai COD berkisar antara 8.000 hingga 12.000 ppm. Pada penelitian ini, dilakukan pengujian pada berbagai pH, konsentrasi FeSO4.7H2O dan konsentrasi hidrogen peroksida. Hasil  penelitian menunjukkan bahwa kemampuan proses AOP dengan metode Fenton dapat menurunkan konsentrasi COD dan TSS masing-masing adalah 70,7704% dan 88,3897% pada konsentrasi FeSO4.7H2O 3703,52 ppm, konsentrasi H2O2 5586,43 ppm, dan pH 3.