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All Journal Jurnal Litbang Industri The Jurnal Arsip Rekayasa Sipil dan Perencanaan (Journal of Archive in Civil Engineering and Planning) Jurnal Serambi Engineering Jurnal Teknik Kimia USU Jurnal Litbang Industri JURNAL REKAYASA KIMIA & LINGKUNGAN
Muhammad Zaki
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Syiah Kuala
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Transportation

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Pembuatan Film Selulosa dari Nata de Pina Iskandar Iskandar; Muhammad Zaki; Sri Mulyati; Umi Fathanah; Indah Sari; Juchairawati Juchairawati
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 3 (2010): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

Preparation of cellulose film from nata de pina, a product of pinapple fermentation, using acetobacter xylinum was done at room temperature for 15 days. The aim of the research is to investigate the effect of sugar concentration and pH on film quality. The fermentation run at sugar concentration of 0, 5, 7.5, 10 and 12.5% and at pH of 3, 5 and 7. Results show that the best nata de pina was obtained at sugar concentration of 10% and pH 5. At these conditions, maximum nata precipitates rendemen was 26,80%, with a moisture content of 80,55%, and the thickness of 3,30 cm. The product nata then can be used to produce cellulose film. The characteristic of the produced film were 8,20 Kgf/mm2 and 11,71% for maximum tensile strength and elongation, respectively.Keywords: acetobacter xylinum, film, nata de pina, selulosa
Water Quality Assessment in the Tsunami Areas of Banda Aceh Suhendrayatna Suhendrayatna; Marwan Marwan; Edi Munawar; Muhammad Zaki
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Water quality assessment in the tsunami-affected areas conducted in Meuraxa and Kutaradja sub-districts in the area of Banda Aceh City. Water samples were collected in October 2006 from dug wells of tsunami-affected areas. These were characterized for various physical and chemical parameters. Water quality in the selected areas has shown that the surface water was contaminated due to the tsunami. Total Dissolved Solid, Total Suspended Solid, Acidity, and salinity were high in the affected areas indicating saline water intrusion into surface water tables. Dug wells in the highly affected locations showed higher values of heavy metal ions like Mn, Pb, Cu, Fe, Zn, and Cu compared to the reference points. No ion Hg was found in all samples. Keywords: Banda Aceh, heavy metals, tsunami, water quality
Co-Authors Azizah Azizah Cut Meurah Rosnelly Darmadi Darmadi Edi Munawar Edi Munawar Husni - Husin Husni Husin Husni Husin, M.T. Indah Sari Iskandar Iskandar Juchairawati Juchairawati Justaman Arifin Karo Karo Lia Meiriza - Meiriza Lisyawati Lisyawati Marwan Marwan Marwan Marwan Miftahurrahmah Muhammad Aqilussalim E Muhammad Isya Muhammad Kurnia Muhammad Muhammad Muhammad Rizki Mulyati, Sri Nasrullah Razali Nurhazanah Nurhazanah Nurul - Aflah Pocut Nurul Alam Ria Elfrida S Saifullah Ramli Sofyana, Sofyana Suhendrayatna Suhendrayatna Suhendrayatna Syahidin DS Syahrul Fahmi Syahrul Purnawan Syariful Maliki Teku Muhammad Asnawi Umi Fathanah Zeinhom M El-Bahy Zulkarnain Jalil