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All Journal Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Jurnal Teknik Kimia USU Jurnal Ilmu Kebencanaan : Program Pascasarjana Unsyiah Jurnal Serambi Engineering Jurnal Nasional Komputasi dan Teknologi Informasi Aptisi Transactions on Technopreneurship (ATT) Jurnal Sains dan Teknologi Reaksi Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences REACTOR : Journal of Research On Chemistry And Engineering Jurnal Pemerintahan dan Kebijakan (JPK) Jurnal Teknologi Jurnal Pusat Inovasi Masyarakat Aceh International Journal of Science and Technology Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) JIPI (Jurnal IPA dan Pembelajaran IPA) Leuser Journal of Environmental Studies Grimsa Journal of Science Engineering and Technology Jurnal Teknik Sipil Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan IJES : Indonesian Journal of Environmental Sustainability. Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS) JURNAL REKAYASA KIMIA & LINGKUNGAN
Suhendrayatna Suhendrayatna
Chemical Engineering Department, Faculty Of Engineering, Universitas Syiah Kuala, Banda Aceh, Indonesia, 23111
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Bioakumulasi dan Toksisitas Logam Timbal Terhadap Ikan Plati (Oryzias latipes) Suhendrayatna, Suhendrayatna; Muhammad Zaki, Muhammad Zaki; Hakim, Arief Rahman; Al Harist, Al Harist
Jurnal Sains dan Teknologi Reaksi Vol 1, No 2 (2003): Jurnal Sains dan Teknologi Reaksi
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v1i2.47

Abstract

Berkaitan dengan pengaruh logam timbal pada ekosistem perairan, studi tentang toksisitas dan akumulasi logam timbal ada ikan Plati (Oryzias latipes) dilakukan pada skala laboratorium. Hasil penelitian menunjukkan bahwa lethal concentration 50 % (LC50) logam timbal terhadap ikan Plati (Oryzias latipes) adalah sebesar 947,7 ppm. Pada saat ikan Plati (Oryzias latipes) dihidupkan pada air yang mengandung timbal, jumlah timbal yang diakumulasikan pada sel meningkat sejalan meningkatnya konsentrasi timbal pada air. Selama 3 hari pemaparan, sebanyak 80% dari timbal yang terakumulasi dalam sel tersebut diekskresikan pada air.Kata kunci : Toksisitas, Bioakumulasi, dan Ikan Plati (Oryzias latipes).
Tantangan dan Strategi Akademisi Perempuan Dalam Pencapaian Gelar Akademik Tertinggi: Studi Kasus di Universitas Syiah Kuala Andini, Rita; Safitri, Rini; T, Ade; Ikhsan Sulaiman, Muhammad; Olivia, Monita; L, Erika; Pardede, Pardede; Afifuddin, Muhammad; Suhendrayatna, Suhendrayatna; Darusman, Darusman
Jurnal Pemerintahan dan Kebijakan (JPK) Vol 2, No 3 (2021): Agustus
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jpk.v2i3.12665

Abstract

niversitas Syiah Kuala atau ‘Unsyiah’ yang terletak di ujung pulau Sumatera, tergolong universitas menengah di Indonesia dengan kurang lebih 30.000 mahasiswa yang terdiri dari 132 program studi. Ini tercatat sebagai Lembaga Pendidikan Tinggi (HEI) tertua dan paling mapan di provinsi ini. Sekitar 2.200 dosen dipekerjakan dan didominasi oleh akademisi perempuan, yaitu hingga 56%. Dari total jumlah dosen, 38% sudah meraih gelar Doktor. Namun demikian, jumlah Guru Besar di semua fakultas masih sangat rendah (5%) dan didominasi oleh laki-laki. Hanya 15 dari total profesor (N= 73) adalah akademisi perempuan, berhasil “memecahkan langit-langit kaca”, dan akhirnya mencapai jabatan guru besar. Kondisi seperti itu juga menyiratkan kesenjangan yang sangat besar di bidang akademik, antara kedua jenis kelamin dalam mencapai karir terpenting mereka. Kajian ini melaporkan identifikasi dan kendala yang biasanya dihadapi serta faktor pendukung yang dibutuhkan oleh sivitas akademika perempuan dalam meraih jabatan guru besar di Unsyiah, yang juga dapat diterapkan sebagai kondisi umum di HEI lainnya. Kuesioner berbasis online digunakan untuk mengumpulkan data dari peserta di sepuluh fakultas. Responden perempuan berusia antara 30-70 tahun, yang sebagian besar memiliki keluarga - telah berpartisipasi dalam kuesioner. Faktor-faktor diidentifikasi, dan disajikan dalam diagram. Studi ini menyarankan beberapa strategi dan beberapa rekomendasi terkait pengarusutamaan gender yang dimiliki oleh kebijakan dan praktik universitas yang mungkin berguna untuk meningkatkan jumlah profesor perempuan di institusi untuk jangka panjang.
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)

Abstract

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.
Oil yield of green microalgae isolated from ponds around Banda Aceh City . Marwan; . Suhendrayatna; . Bahagia
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 1, No 2 (2011): Engineering
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (201.224 KB)

Abstract

Study on CO2 fixation for the growth of oil-produced green microalgae by cultivating the algae in illuminated glass containers was conducted. Green algae were isolated from some water pond samples around Banda Aceh. The samples contain mixed biomasses. The types of microalgae, as the results of the isolation was identified, and then cultivated in the CO2 bubbled containers. The algae growth and oil yield were observed under different mediums (modified Detmer and modified CHU-13) and illumination (2 x 8 watts and 4 x 8 watts). Tanjong Selamat samples were used throughout this research based on initial screening stage. The two medium used led to different growths of the algae; the Detmer medium giving higher growth rate. Faster growth rates were found for cultivation using modified Detmer medium and 4 x 8 watts illumination. The oil yield was determined by solvent extraction method. Oil yield using the CHU-13 medium was 88.5%, much higher than the yield of Detmer medium sample 55.4%. It shows the potential use of local green microalgae to produce alternative bio-oil.
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)

Abstract

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
Penurunan Kadar Amonia Dalam Limbah Cair Oleh Tanaman Air Typha Latifolia (Tanaman Obor) Heri Afriadi Aka; Suhendrayatna .; Syaubari .
Jurnal Ilmu Kebencanaan : Program Pascasarjana Unsyiah Vol 4, No 3: Agustus 2017
Publisher : Jurnal Ilmu Kebencanaan : Program Pascasarjana Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (294.263 KB)

Abstract

Abstrak. Keberadaan amonia berlebih sangat berbahaya bagi kehidupan di lingkungan air. Amonia merupakan polutan yang sangat berbahaya karena dalam jumlah yang besar dapat menyebabkan kematian organisme. Untuk mencegah dan mengatasi permasalahan pencemaran air oleh limbah amonia dapat digunakan beragam metode. Salah satu metode yang dapat digunakan adalah fitoremediasi. Fitoremediasi adalah upaya penggunaan tanaman dan bagian-bagiannya untuk dekontaminasi limbah dan masalah-masalah pencemaran lingkungan. Pada proses fitoremediasi tidak semua tanaman dapat digunakan dikarenakan semua tanaman tidak dapat melakukan metabolisme, volatilisasi dan akumulasi semua polutan dengan mekanisme yang sama. Tujuan dari penelitian ini adalah mengetahui kemampuan tanaman air Typha latifolia menyerap amonia di dalam limbah, dan mengetahui pengaruh variabel-variabel yang divariasikan di dalam penelitian. Hasil penelitian menunjukkan bahwa tanaman air Typha latifolia memilki kemampuan yang baik dalam menyerap amonia. Penurunan konsentrasi amonia berbanding lurus dengan tinggi tanaman dan HRT (Hydraulic Retention Time).
PEMANFAATAN ABU DASAR INSINERATOR SEBAGAI BAHAN BANGUNAN Wilda Khairuna; Suhendrayatna .; Muhammad Zaki
Jurnal Ilmu Kebencanaan : Program Pascasarjana Unsyiah Vol 4, No 4: November 2017
Publisher : Jurnal Ilmu Kebencanaan : Program Pascasarjana Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (301.227 KB)

Abstract

This research is purposed to study the mixture ratio that can be used to produce mortar which meets SNI standard, by substituting a part of sand with bottom ash collected from RSUD Dr.Zainoel Abidin incinerator in the mixture. The mixture planning was done according to practical instruction ASTM C 305, and compressive strenght test on the mortar produced was performed. The mixture ratio of cement: sand: ash that was used was 1:3:1, 1:2:2, and 1:1:3. The testing materials were 63 cubes with dimension 5 cm × 5 cm × 5 cm. The compressive strenght test  result after 28 days of mortar curing time showed that the mortar in every mixture ratio has met SNI 03-6882-2002, which is a specification of mortar for masonry work. The highest result of compressive strenght test is 18.71 MPa, which was obtained from mixture ratio 1:3:1, with addition of incinerator bootom ash by 25% of volume of sand used, but the value was decreasing as the increasing amount of incinerator bottom ash added in the mixture. The result of compression test on mortar with incinerator bottom ash addition was bigger and characteristically seemed more compact compared to mortar without ash.
EVALUASI KINERJA PENGOLAHAN LIMBAH CAIR RUMAH SAKIT JIWA (RSJ) BANDA ACEH Putri Nurmala; Suhendrayatna .; Muhammad Zaki
Jurnal Ilmu Kebencanaan : Program Pascasarjana Unsyiah Vol 3, No 2: Mei 2016
Publisher : Jurnal Ilmu Kebencanaan : Program Pascasarjana Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (249.966 KB)

Abstract

Performance evaluation of liquid waste treatment psychiatric hospitals of Banda Aceh. The management of liquid waste is part of the hospital that serves to protect the public from the dangers of environmental pollution, so it takes a good handling and right through the installation of wastewater treatment (IPAL). This research aims to know the methods of the management and processing of liquid waste conducted by RSJ Banda Aceh, to know the management system and waste liquid waste RSJ Banda Aceh with the Raw quality of the applicable Legislation and regulations and to know the conditions of the environment around the area of RSJ Banda Aceh, before and after the existence of the management of liquid waste. The research sample is liquid waste RSJ Banda Aceh before being processed (inlet), liquid waste after being processed (outlet), drainage and wells. Parameters measured are the BOD (mg/L), COD (mg/L), pH, TSS (mg/L) and temperature (oC) compared to KEPMEN LH No. 58, in 1995 about the raw quality of liquid waste for the activities of the hospital. The analysis of the data used for the determination of the status of the quality of waste water  Pollution Index method (IP) and data analysis using SPSS version 16.0 questionnaire. The results showed that wastewater RSJ Banda Aceh is in the category of light impurities with PIj values of 2.457, so as not to endanger the population around the area of RSJ Banda Aceh.Keywords: Wastewater Management, Wastewater liquid of Hospital, Wastewater Treatment by RSJ Banda Aceh 
PEMANFAATAN ASAP CAIR DARI PIROLISIS CANGKANG KELAPA SAWIT SEBAGAI PENGAWET ALAMI TAHU Lisa Ginayati, M. Faisal, Suhendrayatna
Jurnal Teknik Kimia USU Vol 4, No 3 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (187.697 KB) | DOI: 10.32734/jutek.v4i3.10733

Abstract

This research aims to utilize the coconut-palm shell waste to be processed as liquid smoke grade I, used for natural preservative of tofu. The process used to produce the liquid smoke is by using pyrolysis method. The pyrolysis temperatures used ware 300 oC, 340 oC, and 380oC, with liquid smoke concentration of 0.5%, 1%, 2%, 4%, and 6%. Purification of liquid smoke from grade III to grade I was made through two distillation phases at temperature of 200 oC. The produced liquid smoke grade I was then utilized to preserve the tofu in order to increase its storing period. The testing towards durability of the preserved tofu was done by Total Volatile Base (TVB) and Organoleptic. Based on the TVB values test, the tofu can last for 56 hours when it was soaked in liquid smoke, while the durability of the tofu without soaked in liquid smoke was only 16 hours. Results of the organoleptic test showed that 90% of respondents favor the taste, flavor, and texture of the liquid smoke-soaked tofu, which was pyrolysed at 340oC and at concentration of 0.5%. the TVB Value at these condition was 19.61mg N%.  
PENGARUH AKTIVASI ADSORBEN BIOMASSA TERHADAP GUGUS HIDROKSIL PADA PROSES ADSORPSI ION LOGAM TIMBAL (Pb) Abdurrahman, Suhendrayatna, Syahiddin DS
Jurnal Teknik Kimia USU Vol 5, No 3 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (150.604 KB) | DOI: 10.32734/jutek.v5i3.13958

Abstract

Lead (Pb) is a very popular and widely metal known by public caused by high use in industries and toxid to living organisms. This research was conducted to investigate the absorption process of Pb ion in synthetic wastewater. The observations focused on the absorption performance by an adsorbent from mixture biomass of palm bunches and rice husk activated with citric acid in various concentrations and observed an increase in the wave number bonding hydroxyl group (OH) after activated with citric acid. Kinetics of adsorption occured at wave number 3200-3600 cm-1 which founded very good performance of hydroxyl groups in the absorption process in that IR spectra area. Pb ion absorption was found the best place on the ratio of biomass (palm bunches: rice husk) 1: 1, which occured 56.70% absorption with initial concentration of 80 ppm. Furthermore, it was found that contact time between adsorbent and metal ions Pb affect to the absorption.
Co-Authors . Bahagia . Elvitriana . Marwan A.A. Ketut Agung Cahyawan W Abd Rahman, Sunarti Abdul Gani ABDUL GANI Abdurahman Abdurrahman Abrar Muslim Abrar Muslim Abrar Muslim Ade T Afifuddin, Muhammad Al Harist, Al Harist Ali Sarong Aman Yaman Asmaul Husna Asmaul Husna Aulia, Muhammad Bahagia Bahagia Bahagia Bahagia Bahagia Bahagia Darusman Darusman Dedi Sofriadi Donny Avrilan Edi Munawar Edi Munawar Eko Suhartono Eldina Fatimah Ellysa Ellysa Elviani Elviani Erika L Faisal Abdullah Faisal Abdullah Fandana, Lisa Febriani Febriani Fredinan Yulianda Ghazi Mauer Idroes H Murni Halik Halimah Halimah Henny Marlina Heri Afriadi Aka Hesti Meilina Hesti Meilina Hesti Meilina Husni Husni Ichwana Ichwana Idroes, Ghalieb Mutig Indra Indra Iqbalul Hadi Irhamni Irhamni Irma Yurni Irza, Tsaqif Aufa Jayawarsa, A.A. Ketut Kasturi Kasturi Khairan Khairan Kiman Siregar* Kusumo, Fitranto L, Erika Laksono Trisnantoro M. Nasir Mahidin Mahidin Marwan Abu Bakar Marwan Marwan Marwan Marwan Maulana, Aga Medyan Riza Miftahurrahmah Miftahurrahmah, Miftahurrahmah Monita Olivia Muammar Khadafi Muhammad Afifuddin Muhammad Ikhsan Sulaiman Muhammad Irham Muhammad Syukri Muhammad Zaki Muhammad Zaki Muhammad Zaki Muhammad Zaki, Muhammad Zaki Mulyadi Mulyadi Muslim*, Abrar Nizariah, Nizariah Novia Novia Novia Novia Nurlaili Nurlaili Pardede Pardede Pardede, Pardede Prasetio, Rasi Putri Nurmala Rahmawati, Sri Rini Ermiana* Rini Safitri Rini Safitri Rita Andini RITA ANDINI Sabrina Hayatun Nufus Saiful Saiful Sofia Sofia Sri Adelila Sari Sugianto Sulastri Sulastri Syafrizal Syafrizal Syaiful Huzni Syaubari Syaubari T, Ade Teuku Rizky Noviandy Thaharah Ramadhani Vera Viena Wilda Khairuna Yundari, Yundari Zahriah, Zahriah Zainal Abidin Muchlisin Ziana Ziana Zuchra Helwani, Zuchra Zuhri, Sarika Zulkifli Ak Zulkifli AK