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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 Jurnal Sains dan Teknologi Reaksi Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Pemerintahan dan Kebijakan (JPK) Jurnal Pusat Inovasi Masyarakat (JPIM) Jurnal Rekayasa Kimia & Lingkungan 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) Jurnal Teknik Sipil

Suhendrayatna Suhendrayatna

Chemical Engineering Department, Faculty Of Engineering, Universitas Syiah Kuala, Banda Aceh, Indonesia, 23111

Author-ID : 389595

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences Transportation Other

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PENURUNAN KADAR LOGAM KADMIUM MENGGUNAKAN ADSORBEN NANO ZEOLIT ALAM ACEH Cut Raziah, Zerlinda Putri, Atika Rahmi Lubis, Sofyana, Zuhra, Suhendrayatna, Sri Mulyati
Jurnal Teknik Kimia USU Vol 6, No 1 (2017)
Publisher : Universitas Sumatera Utara

The presence of Cadmium (Cd) in groundwater is an issue that needs serious handling as it causes problems to human health. The removal of Cadmium (Cd) can be done by various methods such as adsorption, oxidation, filtration, and many more. In this study, the method used was adsorption using Aceh natural zeolite. This process was expected to reduce Cd metal as effectively as possible. The adsorption was conducted by varying contact time, adsorbent dosage, pH and initial concentration of Cd metal. The crystallized Aceh natural zeolite was characterized by X-Ray Fluorescence (XRF) with Si/Al zeolite ratio of 4.36 %. The concentration of Cadmium in water was analyzed by means of Atomic Adsorption Spectrophotometer (AAS) standard AA 630. The results showed that the adsorption of cadmium in water solution by Aceh natural zeolite occurred according to the Freundlich adsorption model. While the adsorption kinetic from the process was found to be a pseudo second order with k2 value of 1.53.

PENYISIHAN ION LOGAM MERKURI (Hg2+) MENGGUNAKAN ADSORBEN BERBAHAN BAKU LIMBAH PERTANIAN DAN GULMA TANAMAN Miftahurrahmah, Suhendrayatna, Muhammad Zaki
Jurnal Teknik Kimia USU Vol 6, No 1 (2017)
Publisher : Universitas Sumatera Utara

This research was conducted to prepare adsorbents from agricultural and weeds waste biomass to remove Hg2+ metal ions from water phase. Water hyacinth biomass (agricultural waste) and rice husk (weed) was cleaned, dried in an oven dryer, and carbonized in a furnace at 500oC for 2 hours. Then, dried carbon was milled to get 100 mesh of size and was followed by activation using 0.5 N NaOH. The adsorption process was conducted by mix 1 gram of activated adsorbent on a 100 ml water containing 3 ppm Hg2+ metal ions at 100 rpm, pH 5, and 30oC. Hg2+ concentration in water phase were analyzed using AAS, Shimadzu AA-6300 for a specified time within a period of 20-100 minutes. This study shows that at the beginning process of adsorption, adsorbent from rice husk has ability to decrease 69.91% concentration of Hg2+ for 20 minutes, while adsorbent from water hyacinth reaches to 94.26%. The characterization results of FTIR spectra and SEM shows that adsorbent from water hyacinth was able to absorb more Hg2+ metal ions in a short time because it has a functional group that was able to bind heavy metals, and also has a random surface structure, compared with the adsorbent from rice husks that has less functional groups with uniform morphology structure

Pengarusutamaan Gender dalam Kebijakan Jenjang Kepangkatan di Universitas Syiah Kuala Rita Andini; Rini Safitri; Ade T; Muhammad Ikhsan Sulaiman; Monita Olivia; Erika L; Pardede Pardede; Muhammad Afifuddin; Suhendrayatna Suhendrayatna; Darusman Darusman
Jurnal Pemerintahan dan Kebijakan (JPK) Vol 3, No 2 (2022): April
Publisher : Universitas Muhammadiyah Yogyakarta

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

Penelitian ini bertujuan untuk mengidentifikasi faktor-faktor yang mempengaruhi sivitas akademika Universitas Syah Kuala untuk mencapai jenjang Kepala Dosen (LK) dan Guru Besar/Guru Besar. Hasil penelitian ini berkontribusi dalam menentukan kebijakan tingkat kepangkatan berdasarkan Pengarusutamaan Gender (PUG). Program PUG yang telah dilaksanakan secara eksplisit dalam 'Gender Equality Plans in (Marine) Research Projects' atau disingkat Baltic Gender yang didanai dari program Horizon 2020 Uni-Europe dapat dijadikan acuan sebagai program 'stimulasi' bagi dosen perempuan dan peneliti untuk dapat mengembangkan kapasitas dan daya saingnya. Fasilitas kelembagaan yang mempertimbangkan beban ganda bagi dosen perempuan dapat ditindaklanjuti dengan memberikan fasilitas 'penitipan anak' hingga jam kerja normal, bagi dosen dan staf yang memiliki anak usia pra sekolah sehingga dosen perempuan juga dapat terlibat aktif dalam kegiatan produktif. dan kegiatan penelitian yang dinamis. . Selain itu, program insentif dana penelitian yang mempertimbangkan 'insentif' untuk pembayaran fasilitas penitipan anak selain insentif tambahan untuk dana penelitian dan publikasi juga dapat dipertimbangkan untuk dosen perempuan dengan beban ganda; khususnya yang berstatus single parent dengan jabatan Ketua Lektor. Namun, 'creme de la-creme' adalah semua kebijakan yang tertulis secara eksplisit ramah gender bagi dosen perempuan yang memiliki kekuatan hukum tetap dan ditandatangani oleh pimpinan tertinggi yang mengikat mereka pada jenjang turunannya tanpa mengurangi kondusifitas akademik (penelitian dan pendidikan) suasana. Karena sebuah kematian tanpa aturan yang mengikat secara formal dari sebuah institusi sangat penting untuk keberlangsungan di masa yang akan datang (sustainability). Hal ini dapat dikategorikan sebagai bentuk transformasi kelembagaan sekaligus sebagai bentuk nyata kepedulian para pemimpin tingkat tinggi, tentunya akan berdampak positif dalam jangka panjang terkait dengan target Unsyiah untuk mencapai World Class University Based Imtaq.

The Effect of Administrative Implementation Principles towards the Effectiveness of Government Services Halik Halik; Suhendrayatna Suhendrayatna; Irma Yurni; Halimah Halimah
Budapest International Research and Critics Institute (BIRCI-Journal): Humanities and Social Sciences Vol 3, No 1 (2020): Budapest International Research and Critics Institute February
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v3i1.714

The purpose of this study is to find out the implementation of the principles of public administration, and see the obstacles experienced by the Camat and sub-district staff in implementing the principles of public administration. This study reviews the policy of implementing administrative principles on the effectiveness of government services. Using descriptive-quantitative methods, the sample are 32 employees of the Tiro sub-district office. the results showed that the policy of implementing administrative principles on the effectiveness of the service of the sub-district government had run effectively and good coordination in the field of duties and functions of each employee.

Analisis Tingkat Pencemaran Air Sungai Krueng Tamiang Terhadap COD, BOD dan TSS Bahagia Bahagia; Suhendrayatna Suhendrayatna; Zulkifli Ak
Jurnal Serambi Engineering Vol 5, No 3 (2020)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v5i3.2073

Industrial waste is a factor influencing the pollution of the Krueng Tamiang river. The purpose of this study was to analyze the level of water pollution in the Krueng Tamiang river with the parameters of Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and Total suspended Solid (TSS) parameters. The results showed the highest BOD parameter test results came from location 2 (Seumadam Bridge) of 3.63 mg / L at stage IV and the lowest BOD value at locations 1 and 6 (Kaloy Village and Alur Manis Bridge) at stage I of 2 mg / L. The highest COD parameter test results came from location 5 (Kota Lintang Bridge) of 21.0 mg / L at stage III and the lowest COD value at location location 1 (Kaloy Village) at stage III, points 1, 3 and 6 (Kaloy Village, Kebon Tengah Suspension Bridge and Alur Manis Bridge) at stage IV of 17.0 mg / L. The highest TSS parameter test results came from location 7 (Peukan Seuruway), namely 295 mg / L phase I in the dry season, and the lowest TSS value at location 1 (Kaloy Village), which was 11 mg / L in stage III during the rainy season.

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.

Akumulasi Logam Berat pada Tanaman Pepaya (Carica papaya) Akibat Penggunaan Air Limbah Rumah Sakit sebagai Media Tumbuh Suhendrayatna Suhendrayatna; Elviani Elviani; Elvitriana Elvitriana
Jurnal Serambi Engineering Vol 7, No 3 (2022): Juli 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i3.4639

Wastewater from the outlet of hospital's Wastewater Treatment Plant (WWTP) is expected to be used for watering plants as an effort to water use efficiently. To answer this assumption, this research was carried out to examine the effects of hospital wastewater as a plant growth medium on the accumulation of pollutants in papaya (Carica papaya) leaves and fruit. Local papaya seeds were grown on the land around the hospital's WWTP and the plants were watered every day with wastewater. Plants were well cared for without adding other additives as fertilizer and their growth was observed. After 8 months of treatment, the fruits and leaves of plants were harvested and destructed using HNO3 and H2SO4 to measure the heavy metal content using the Atomic Absorption Spectrophotometer, Shimadzu A630. Results showed that when wastewater was used as a growth medium, metals Hg, Cd, and Pb were found to accumulate in papaya fruit with a concentration of 0.179; 0.582; and 2,327 mg/kg, while other metals such as Cr and As were not found to accumulate in papaya fruit. Metal accumulation was also found in papaya leaves with Hg content of 0.739 mg/kg and Cd of 0.582 mg/kg, while others metals Cr, Pb, and As were not found in the papaya leaves. These results indicate that the main source of heavy metal accumulation in papaya plants came from wastewater from the WWTP outlet containing heavy metals.

Analisis Kualitas Air Permukaan DAS Alas-Singkil Untuk Monitoring Tingkat Pencemaran Air Permukaan Zulkifli AK; Bahagia Bahagia; Suhendrayatna Suhendrayatna; Vera Viena
Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) Vol 4, No 6 (2021): Desember 2021
Publisher : Program Studi Teknik Informatika, Fakultas Teknik. Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jnkti.v4i6.4660

Abstrak - Kualitas air permukaan yang mengalir di Daerah Aliran Sungai (DAS)Alas Singkil perlu dilakukan analisis komponen/indikator lingkungannya. Pengukuran kualitas air sungai akibat adanya pencemaran. DAS Alas Singkil menaungi delapan sungai di Kota Subulussalam yang bergabung membentuk sungai. Tujuan penelitian adalah untuk menganalisis tingkat pencemaran air sungai Wilayah Sungai (WS) Alas-Singkil dengan parameter uji Total suspended Solid (TSS), pH, kandungan oksigen dan kadar logam. Hasil penelitian menunjukkan suhu daerah aliran sungai (DAS) Alas Singkil menunjukkan kisaran antara 27,4 – 29,1 °C. Suhu dapat mempengaruhi fotosintesis di sungai wilayah Alas Singkil baik secara langsung maupun tidak langsung. Hasil uji TDS menunjukkan nilai 23,9 mg/L - 97,5 mg/L yang masih berada dibawah baku mutu. Lokasi paling tinggi TDS berada pada titik Sungai Lae Kombih (AP2) dan nilai paling rendah pada lokasi Sungai Lae Soraya (AP1). Hasil uji menunjukkan bahwa nilainya masih dibawah baku mutu yaitu 1.000 mg/L. Hasil uji TSS antara 4 -36 mg/L. Konsentrasi TSS semua lokasi tidak melebihi baku mutu yang telah ditetapkan oleh Peraturan Pemerintah RI No. 22 Tahun 2021 tentang Penyelenggaraan Perlindungan dan Pengelolaan Lingkungan Hidup untuk Kelas Air II. Hasil uji pH lebih stabil dan berada dalam kisaran yang sempit yaitu 6,82–8,86 pH karena dipengaruhi oleh kapasitas penyangga (buffer) yaitu adanya sedimentasi aliran sungai. Hasil uji kadar logam : tembaga (CU), Timbal (Pb), Cadmium (Cd) dan Seng (Zn) pada Daerah Aliran Sungai (DAS) Alas Singkil menunjukkan masih barada dalam ambang batas dengan hasil uji Laboratoirum dibawah baku mutu yaitu 0,0008 b , 0,0001 b , 0,0004 b dan 0,0001 b (Tidak terdeteksi karena berada di bawah Batas Minimum Deteksi Alat Uji). Kata kunci : Air permukaan, DAS, kualitas, pencemaran air sungai, pemantauan dan penertiban. Abstract – The quality of surface water flowing in the Alas Singkil Watershed (DAS) needs to be analyzed for environmental components/indicators. Measurement of river water quality due to pollution. The Alas Singkil watershed covers eight rivers in Subulussalam City which combine to form rivers. The purpose of the study was to analyze the level of water pollution of the Alas-Singkil River Basin (WS) with the test parameters of Total suspended Solid (TSS), pH, oxygen content and metal content. The results showed that the temperature of the Alas Singkil watershed showed a range between 27.4 – 29.1 °C. Temperature can affect photosynthesis in the Alas Singkil river area either directly or indirectly. The TDS test results showed a value of 23.9 mg/L - 97.5 mg/L which was still below the quality standard. The highest location for TDS is at the point of the Lae Kombih River (AP2) and the lowest value is at the location of the Lae Soraya River (AP1). The test results show that the value is still below the quality standard of 1000 mg/L. TSS test results between 4 -36 mg/L. The concentration of TSS in all locations does not exceed the quality standard set by the Government of Indonesia Regulation No. 22 of 2021 concerning the Implementation of Environmental Protection and Management for Water Class II. The pH test results are more stable and are in a narrow range of 6.82-8.86 pH because it is influenced by the buffer capacity, namely the presence of river flow sedimentation. The test results for the levels of metals: copper (CU), Lead (Pb), Cadmium (Cd) and Zinc (Zn) in the Alas Singkil Watershed (DAS) showed that they were still within the threshold with the Laboratory test results below the quality standard, namely 0, 0008 b , 0.0001 b , 0.0004 b and 0.0001 b (Not detected because it is below the Minimum Detection Limit for Test Equipment).Keywords: Surface water, watershed, quality, river water pollution, monitoring and control.

Biosorbent Prepared from Calotropis Gigantean Stems for Adsorption of Cu(II) Ions from Aqueous Solution Asmaul Husna; Faisal Abdullah; Abrar Muslim; Suhendrayatna Suhendrayatna; Hesti Meilina
Jurnal Rekayasa Kimia & Lingkungan Vol 16, No 1 (2021): Jurnal Rekayasa Kimia & Lingkungan (June, 2021)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Calotropis gigantea stems (CGS) has the potential to use as biosorbent for adsorption of Cu(II) ions. In this study, the CGS biosorbent (CGSB) was prepared by drying and grounding. The effect of independent variables on adsorption capacity were investigated. As the result, the maximum adsorption capacity of 53.457 mg/g was obtained the optimal condition which was initial Cu(II) ions concentration of 567.47 mg/L, CGSB size of less than 230 mesh, CGSB mass of 1 g, temperature of 27 oC, pH 5, and contact time of 60 min. The CGSB surface morphology was analysed using SEM. The adsorption of Cu(II) ions fitted well with pseudo first-order adsorption kinetic (PFO-AK) model (R2=0.99), and the PFO-AK adsorption capacity and rate constant obtained were 70.194 mg/g and 0.0877 g/mg.min, respectively. The adsorption isotherm of Cu(II) ions was in accordance with Freundlich model (R2=0.99), and the intensity and volume constants attained were 0.876 and 1.017 L/mg, respectively. This result showed that physical adsorption occurred dominantly than chemical adsorption. The application of CGSB on the wastewater of initial Cu(II) ions concentration of 389.31 mg/L from ex-mine pool of acid mine drainage (AMD) in Jantang village, Lhoong District, Aceh Besar, Aceh Province resulted in adsorption capacity of 37.52 mg/g with adsorption efficiency of 66.13%.

Pengaruh Waktu Tinggal dan Umur Tanaman pada Biosorpsi Ammonia oleh Tanaman Air Enceng Gondok (Eichhornia Grassipes) Suhendrayatna Suhendrayatna; Bahagia Bahagia; Novia Novia; Elvitriana Elvitriana
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 2 (2009): 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 (179.549 KB)

Ammonia biosorption by using Enceng Gondok, Eichhornia crassipes, was conducted in outdoor laboratory with objective to study the influence residence time and plant age to ammonia biosorption rate. The research uses reactor test consisting of wet land and sludge. Enceng Gondok is planted on reactor test flown by ammonia as bacth with relatif low enough concentration (2 mg/L), water height 20 cm, plant’s number in each reactor of 4 stems with variatious plant’s length 10, 20, 30, and 40 cm, and various residence time 2, 4, 6, and 8 days. Each test conducted was completed by controlling reactor. Research result showed that maximun biosorption occurs at 2 days culturization; ammonia biosorption rate by roots increases as residence time increases. Residence time 2, 4, 6 and 8 days can decrease ammonia concentration up to 1.568 mg/l, 0.245 mg/l, 0.204 mg/l (10%), and 0.022 mg/l, respectively, at plant length 10 cm. Further, research results showed that the more the plant’s age, the larger the biosorption by plant.Keywords: ammonia biosorption, enceng gondok, plant’s age, residence time

Co-Authors . Bahagia . Elvitriana . Marwan A.A. Ketut Agung Cahyawan W Abdul Gani ABDUL GANI Abdurahman Abdurrahman Abrar Muslim Abrar Muslim Ade T Afifuddin, Muhammad Al Harist, Al Harist Aman Yaman Asmaul Husna Bahagia Bahagia Bahagia Bahagia Darusman Darusman Dedi Sofriadi Donny Avrilan Edi Munawar Eldina Fatimah Elviani Elviani Erika L Faisal Abdullah Faisal Abdullah Fredinan Yulianda H Murni Halik Halimah Halimah Henny Marlina Heri Afriadi Aka Hesti Meilina Hesti Meilina Husni Husni Indra Indra Iqbalul Hadi Irhamni Irhamni Irma Yurni Kasturi Kasturi Kiman Siregar* L, Erika Laksono Trisnantoro Lisa Fandana Marwan Abu Bakar Marwan Marwan Monita Olivia Muhammad Afifuddin Muhammad Ikhsan Sulaiman Muhammad Syukri Muhammad Zaki Muhammad Zaki Muhammad Zaki, Muhammad Zaki Mulyadi Mulyadi Novia Novia Nurlaili Nurlaili Pardede Pardede Pardede, Pardede Putri Nurmala Rahmawati, Sri Rini Ermiana* Rini Safitri Rita Andini RITA ANDINI Sabrina Hayatun Nufus Saiful Saiful Sri Adelila Sari Sugianto Syaiful Huzni Syaubari Syaubari T, Ade Thaharah Ramadhani Vera Viena Wilda Khairuna Yundari, Yundari Zainal Abidin Muchlisin Ziana Ziana Zuhri, Sarika Zulkifli Ak Zulkifli AK

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