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Improvement of Gayo Lues Patchouli Oil Alcohol Quality With Absorbent Variations of Juice And Purut Orange Peel (Citrus hystrix) Vera Viena; Elvitriana Elvitriana; Zulhaini Sartika; Diana Patra
Serambi Journal of Agricultural Technology Vol 2, No 2 (2020): Serambi Journal of Agricultural Technology (December, 2020)
Publisher : Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/sjat.v2i2.2470

Patchouli oil refinery in Gayo Lues Aceh Indonesia commonly used evaporation process in an old drums at high temperature which decreased the quality of oil produced. The research to enhance the quality of patchouli alcohol of Gayo Lues patchouli oil using Citrus hystrix absorber has been done.The juice from kaffir lime (1 – 10 % v/v) used as chelating agent, and the kaffir peels powder (2,5 - 7 gr) used as bio sorbent. The highest patchouli alcohol (P.A) both resulted at T=50 oC and 60 minutes heating. Kaffir bio sorbent at 7,5 gr usage, gave 40,37% P.A and Fe reduction of 77,67%; while kaffir lime juice at 4% v/v usage, gave P.A 39,90% and Fe reduction of 78,25%. Purified patchouli oil also characterized by its light yellow color, density and refractive index based on SNI.06-2385-2006. It’s concluded that kaffir peels bio sorbent purification has superior P.A quality than kaffir lime juice.

Uptake of Mercury Ion in a Wetland Plant, Canna Sp. . Suhendrayatna; Henny Marlina; Muhammad Zaki; . Elvitriana
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 1 (2015): Engineering
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (61.212 KB)

Canna Sp. is one of the plants that can live in conditions of wetland cultivated in freshwater courses, which often serve as recipients for domestic and other sorts of wastewater. In the context of its life ability, this study deals to investigate the capacity of Canna Sp. in uptake toxic heavy metal mercury from a wetland system. Canna Sp. was cultivated in a polybag contained wastewater for a couple months to reach acclimatization. The wastewater contained mercury ions in different concentrations of 1.2; 0.96 and 0.36 mg-Hg/L. Each polybags contained five stems of Canna Sp. Control media (contain no mercury in media) were also prepared for these treatments. During 14 days of the experiment, the atmospheric air and water temperature (30+3 oC is optimum) were maintained and every five days, length of stems, concentration of mercury ion in water phase, and its tissue were analyzed. The concentration of mercury in shoots, leaves, and roots were analyzed by Atomic Absorption Spectrophotometer, Shimadzu AA 6300 after destructed using TCLP method. Results showed that Canna Sp. has resistant a survival on water phase containing mercury and it inhibits the growth of Canna Sp. in the log phase. The highest mercury ion uptake by Canna Sp. occurred in the root (1.16 – 1.34 mg-Hg/kg) compared to the leaves (0.05 – 0.33 mg-Hg/kg) and the shoots (0.29-0.69 mg-Hg/kg). These results reached to the conclusion that Canna Sp. has a potential for mercury phytoremediation application in a wetland system.

Mercury in sediment and freshwater organisms from Kr. Sikulat River around the artisanal gold mining plants in Sawang, Aceh Province, Indonesia . Suhendrayatna; . Elvitriana
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 2 (2012): Engineering
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.371 KB)

Artisanal gold miners in Sawang use mercury in gold separation process. The workers put gold ore and mercury into the tumblers to extract gold and silver by amalgamation method. After gold and silver are isolated from the ore as amalgam, mercury is vaporized by burning with an oil burner. Furthermore, wastewater containing mercury is discharged at landfills and Kr. Sikulat River stream. With the purpose of knowing the impact of small-scale gold mining plant in Sawang, the concentrations of mercury in Kr. Sikulat River sediment and the accumulation of mercury in tissues of freshwater organisms from Kr. Sikulat River were investigated. Sediments were taken from locations near the gold mining plant and freshwater organisms were caught in the estuary from Kr. Sikulat River. Samples were transported live to the laboratory and sampled dissected after death. Tissue from each organism were removed and grained after dried. Total mercury analyzed using an Atomic Absorption Spectrometry (AAS), AA-6300 Shimadzu. The results showed that the concentration of mercury in sediment found 0.0339 mg-Hg/kg, while the concentration of mercury in the water phase were found 0.005 – 0.047 mg-Hg/L. Mercury was also found in the concentration of 0.1903 mg-Hg/kg accumulated in the shellfish, but it was not found accumulated in other freshwater organisms such as fish and shrimp. Based on these results, a regular monitoring program in Kr. Sikulat River is necessary conducted in order to better elucidate the rate of bioaccumulation and biomagnification by organisms

PENGARUH WAKTU AKTIVASI TERHADAP KARAKTERISTIK ADSORBEN DARI KULIT PISANG KEPOK (Musa acuminate L) YANG DIAKTIVASI SECARA FISIKA Elvitriana, Vera Viena, Muhammad Nizar, Sari Wardani
Jurnal Teknik Kimia USU Vol 6, No 1 (2017)
Publisher : Universitas Sumatera Utara

This study aimed to analyze the effect of activation time on characteristics of banana peels (Musa acuminate L) adsorbent prepared by physics activation. The adsorbent was prepared through two stages, the carbonation of banana skin conducted at 400 oC for 1.5 hours and the physics activation process conducted at 600 oC for 15, 30, and 45 minutes with variations 50 mesh and 100 mesh in size. Adsorbent characteristic parameters analyzed were water content, ash content, volatile matter, fixed carbon, adsorption capacity of iodine, and determination of functional groups using FTIR. Results showed that characteristics of banana peels adsorbent met SNI No. 06-3730-1995 with a water content of 2-8%, 2-9% ash content, 12-17% volatile matter, fixed carbon 73-84% with iodine absorption of 952 mg/g. Results of FT-IR spectra, adsorbent has an absorption band spectra at wave number of 2850 – 2960 cm-1 with stretching vibration appeared on C-H group with intensity 92.50 with activation time of 45 minutes and 50 mesh size. Based on its characteristics analysis, it can be concluded that adsorbent from banana peels has potential to be applied as one of the active carbon absorbent for liquid and gaseous waste.

Potensi Karbon Aktif Kulit Pisang Kepok (Musa Acuminate L) Dalam Menyerap Gas CO Dan SO2 Pada Emisi Kenderaan Bermotor Sari Wardani; Elvitriana .; Vera Viena
Jurnal Serambi Engineering Vol 3, No 1 (2018)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v3i1.355

This study aims to study the efficiency of CO and SO2 gas absorption in motor vehicles emission using activated banana leather bark (Musa acuminate L). The carbon was prepared though consists of a banana skin carbonation process at a temperature at 450 o C for 1.5 hours and activated carbon activation process using H2 SO4 activator at concentrations of 1 Nfor 1, 2 and 3 hours.The motor vehicle emission absorption process uses an adsorption tube which has been loaded activated carbon and connected to the exhaust for 5 minutes. The test of activated carbon characteristics studied were absorption test I2, FTIR test and SEM test. The results showed that iodine absorption was 914 mg / g. The FTIR spectra of activated carbon showed absorption band spectra at wave number 781,17 - 3624,25 cm-1 on vibration of group -OH, with intensity 77,85%. The SEM results show the addition of pore size before and after activation of 1.131 μm and 15.015 μm. The carbon CO gas absorption efficiency is 25% and Gas SO2 is 40%

Analisis Ketersediaan Ruang Terbuka Hijau Berdasarkan Kebutuhan Oksigen Di Kota Banda Aceh Azanul Irham; Elvitriana Elvitriana; Cut Safarina Yulianti; Muhammad Nizar
Jurnal Serambi Engineering Vol 2, No 4 (2017)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v2i4.490

lih fungsi lahan dari kawasan bervegetasi menjadi kawasan terbangun mengganggukeseimbangan ekologi kota, misalnya terhadap kebutuhan oksigen dan kondisi iklim kota. Penelitian ini bertujuan untuk menentukan luas ruang terbuka hijau yang dibutuhkan Kota Banda Aceh tahun 2013, tahun 2014 dan tahun 2015 berdasarkan kebutuhan oksigen kota. Analisis pada penelitian ini menggunakan persamaan Gerarkis. Hasil penelitian menunjukkan bahwa Kota Banda Aceh saat ini memiliki luas ruang terbuka hijau 671,08 Ha atau 10,94 % dari luas Kota Banda Aceh. Pada tahun 2015, ruang terbuka hijau Kota Banda Aceh diprediksi seluas 5.715 Ha atau 93,14 % dari luas kota.

Degradasi Zat Organik Pada Limbah Cair Industri Kelapa Sawit Oleh Mikroalga Hijau Elvitriana Elvitriana; Erman Munir; Delvian Delvian; Hesti Wahyuningsih
Jurnal Serambi Engineering Vol 1, No 2 (2017)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v1i2.497

Penelitian ini bertujuan untuk mempelajari kemampuan mikroalga dalam mendegradasi zat-zat organik pada Palm Oil Mill Effluent (POME) sebagai upaya memperbaiki kualitas limbah cair industri kelapa sawit. Kultivasi mikroalga dilakukan untuk menurunkan zat organik (nutrien) dalam POME pada konsentrasi yang berbeda menggunakan pencahayaan dan aerasi terhadap pertumbuhan biomassa alga yang dihasilkan. Berdasarkan hasil penelitian menunjukan bahwa pertumbuhan mikroalga hijau terbaik dengan kandungan biomassa tertinggi diperoleh dalam kultur konsentrasi 30 % dan pencahayaan 4x8 watt selama 8 jam, biomassa alga yang diperoleh adalah 1,20 g-BK/L. Proses metabolisme sel membuktikan bahwa mikroalga hijau mampu mendegradasi zat-zat organik (nutrien) dalam POME mencapai 40 - 80 % dengan menurunnya konsentrasi COD dan BOD. Hasil penelitian menyimpulkan bahwa mikroalga dapat digunakan sebagai salah satu alternative dalam pengolahan limbah cair industri kelapa sawit.

PENGEMBANGAN APLIKASI PENGUSULANPEMBIMBING TUGAS AKHIR SECARA ONLINE PADA FAKULTAS TEKNIK UNIVERSITAS SERAMBI MEKKAH Munawir Munawir; Elvitriana elvitriana; Karmila Karmila
Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) Vol 1, No 1 (2018): APRIL 2018
Publisher : Program Studi Teknik Informatika, Fakultas Teknik. Universitas Serambi Mekkah

Latar belakang permasalahan yang dihadapi pada fakultas teknik Universitas Serambi Mekkah yaitu pengajuan judul dilakukan dengan cara manual yaitu menemui ka prodi untuk mendapatkan persetujuan dan pembimbing kemudian menjumpai dekan untuk mendapatkan persetujuan judul dan pembimbing tersebut. Tujuan pembuatan sistem informasi pengusulan pembimbing ini agar mempermudah mahasiswa mengajukan judul serta ka prodi dalam memverifikasi kepada mahasiswa. Sistem informasi pengusulan pembimbing kerja praktek dan tugas akhir ini dapat diakses oleh mahasiswa melalui smartphone android atau komputer yang terhubung dengan jaringan internet. Mahasiswa mengajukan judul dengan mengisi form pengajuan judul kerja praktek dan tugas akhir. Selanjutnya kaprodi menverifikasi judul dan menentukan dosen pembimbing, kemudian dekan akan memeriksa dan menyetujui dosen pembimbing serta judul mahasiswa tersebut. Sistem yang dihasilkan adalah sistem informasi pengusulan pembimbing kerja praktek dan skripsi secara online pada fakultas teknik universitas serambi mekkah. Aplikasi dibangun dengan menggunakan bahasa pemograman PHP dan database MySQL.

PENGARUH WAKTU AKTIVASI TERHADAP KARAKTERISTIK ADSORBEN DARI KULIT PISANG KEPOK (Musa acuminate L) YANG DIAKTIVASI SECARA FISIKA Elvitriana; Vera Viena; Muhammad Nizar; Sari Wardani
Jurnal Teknik Kimia USU Vol. 6 No. 1 (2017): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

This study aimed to analyze the effect of activation time on characteristics of banana peels (Musa acuminate L) adsorbent prepared by physics activation. The adsorbent was prepared through two stages, the carbonation of banana skin conducted at 400 oC for 1.5 hours and the physics activation process conducted at 600 oC for 15, 30, and 45 minutes with variations 50 mesh and 100 mesh in size. Adsorbent characteristic parameters analyzed were water content, ash content, volatile matter, fixed carbon, adsorption capacity of iodine, and determination of functional groups using FTIR. Results showed that characteristics of banana peels adsorbent met SNI No. 06-3730-1995 with a water content of 2-8%, 2-9% ash content, 12-17% volatile matter, fixed carbon 73-84% with iodine absorption of 952 mg/g. Results of FT-IR spectra, adsorbent has an absorption band spectra at wave number of 2850 – 2960 cm-1 with stretching vibration appeared on C-H group with intensity 92.50 with activation time of 45 minutes and 50 mesh size. Based on its characteristics analysis, it can be concluded that adsorbent from banana peels has potential to be applied as one of the active carbon absorbent for liquid and gaseous waste.

Penyerapan Ion Logam Merkuri Hg(II) oleh Biosorben dari Daun Lidah Mertua (Sansivieria sp.) Elvitriana Elvitriana; Kasturi Kasturi; H Murni; Suhendrayatna Suhendrayatna
Jurnal Serambi Engineering Vol 7, No 4 (2022): Oktober 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i4.4926

The aim of this study was to apply a biosorbent from the leaves of Lidah Mertua (Sansivieria sp.) which were activated by 4M HCl to remove mercury metal ions Hg(II). The leaves of Sansivieria sp. were cleaned, dried in an oven, and carbonized in a furnace at a temperature of 450 oC for 1.5 hours. After grinding to a size of 50 mesh, the resulting carbon was activated using 4 M HCl for 24 hours and dried at 110 oC for 2 hours. The absorption ability test of biosorbents was carried out by mixing 2, 3, and 4 grams activated biosorbent in 200 ml of water containing 0.15 mg-Hg/L metal ions Hg(II). The mixture was stirred using an incubator shaker with variated contact times of 0, 4, and 6 days. Mercury metal ions concentration were analyzed using AAS, Shimadzu AA-6300. The results showed that activation using 4 M HCl can open the pores of the biosorbent. Compared to the inactivated biosorbent, the characteristics of this activated biosorbent were better with lower water content (2%), higher ash content (9.9%), greater iodine absorption (1259.14 mg/g), and higher carbon content (89%). Based on SNI.06-3730-1995 Standard, the resulting biosorbent was close to qualified as activated carbon. The highest absorption efficiency of ion Hg(II) was 99.6% which was achieved for 6 days with a 4 grams of biosorbent. The results of this study concluded that the leaves of (Sansivieria sp.) activated by 4M HCl could absorb metal ions Hg(II) well.

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