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Journal : PROSIDING SEMINAR KIMIA

PENGARUH VARIASI DOSIS KOAGULAN TERHADAP PERUBAHAN PARAMETER FISIKA – KIMIA KUALITAS AIR BAKU (Studi Kasus : PDAM Kota Samarinda) Ali Murtopo; Aman Sentosa Panggabean; Idris Mandang
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2013
Publisher : PROSIDING SEMINAR KIMIA

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This research was conducted with the aim of obtained the physical – chemical parameter change water quality caused by the coagulant dose variant. Issues raised in this study is a variation of the added coagulant dose on each raw water samples with dose of 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, and 60 ml. Raw water is obtained from Cendana Intake as much as 6 samples, and then the other raw water is obtained from Palaran Intake as much as 6 samples. Of each raw water sample obtained reported on the weather conditions, and ebb & flow river conditions at the time of data collect. Obtained data analyzed using anova test to find out the availability of influence resulting from coagulant dose variant : (a) Raw water turbidity parameter with a value F cal 33,61 and F table 1,82 (0,05), 2,32(0,01). Raw water color parameter with a value F cal 32,15 dan F table 1,82 (0,05), 2,32(0,01). Raw water pH parameter with a value F cal 260 dan F table 1,82 (0,05), 2,32(0,01). F cal value > F table value at all anova test for each parameter indicates that coagulant additions greatly affect turbidity and color parameters change derived raw water suitable standard PERMENKES/No.492/PER IV/2010 about drink water (turbidity 5 NTU and color 15 PtCo). While the addition of coagulant in the raw water will lower the pH of the water, up to add lime or soda ash to raise the pH. In total all raw water samples with turbidity 30 – 80 ppm each matching derived optimal dose distribution average as big 20 – 35 ppm.
PEMBUATAN BRIKET ARANG DENGAN MEMANFAATKAN LIMBAH DARI TEMPURUNG BIJI KETAPANG (Terminalia catappa) DAN TEMPURUNG BIJI KEMIRI (Aleurites molucanna L. Willd.) Sandi Christopher Hutagalung; Erwin Erwin; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

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Tropical almond (Terminalia catappa) seed shell and candlenut (Aleurites molucanna L. Willd) seed shell has a huge potential as a source of alternative energy in the manufacture of coal briquettes. This research has been conducted using method of carbonization, mixing, molding, drying and then the briquettes quality was analyzed with test parameters namely inherent moisture content, ash content, volatile matter content, fixed carbon content and calorific value. The results showed that mixture of tropical almond seed shell and candlenut seed shell can be used as briquettes. In this study, the best quality briquettes with mixture variation of tropical almond seed shell and candlenut seed shell was obtained in mixture variation of 25% tropical almond seed shell and 75% candlenut seed shell with calorific value was 5043 cal/gr, fixed carbon content was 47.22%, volatile matter content was 25.96%, ash content was 4.7% and inherent moisture content was 22.11%. But 100% candlenut seed shell also have a good quality briquettes with calorific value was 5098 cal/gr, fixed carbon content was 47.23%, volatile matter content was 28.44%, ash content was 4.24% and inherent moisture content was 20.08%. Keywords: Briquette, Carbonization, Calorific Value, Terminalia catappa, Aleurites molucanna L. Willd
PENURUNAN KANDUNGAN LINIER ALKYLBENZENE SULFONATE (LAS) DALAM LIMBAH LAUNDRY DENGAN ELEKTROKOAGLASI-FLOKULASI Tio Filus; Alimuddin Alimuddin; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

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Penelitian tentang penurunan kandungan Linier Alkylbenzene Sulfonate (LAS) pada limbah laundry dengan Elektrokoagulasi-Flokulasi telah dilakukan. Untuk memperoleh hasil penelitian, optimasi dilakukan dengan berbagai variasi. Optimasi yang dilakukan antara lain optimasi waktu, optimasi tegangan, optimasi penambahan NaCl dan optimasi pengadukan dengan alat jar test. Instrumen pengukuran dengan menggunakan alat spectrophotometer UV-Vis. Hasil dari penelitian penurunan kandungan Linier Alkylbenzene Sulfonate (LAS) dari waktu kontak pada titik optimum 150 menit sebesar 74,58 %; kuat tegangan pada titik optimum 12 volt sebesar 69,34 %; penambahan kadar NaCl pada titik optimum 0,75 gr sebesar 52,86 %; dan dari optimasi pengadukan lambat dengan alat jar test pada titik optimum 20 rpm sebesar 17,92 %. Hasil penurunan kandungan Linier Alkylbenzene Sulfonate (LAS) pada limbah laundry dengan waktu, kuat tegangan, kadar NaCl dan pengadukan optimum didapatkan sebesar 73,51 %. Kata Kunci: Elekktrokoagulasi, Flokulasi, Limbah Laundry, Linier Alkylbenzene Sulfonate (LAS).
SYNTHESIS CHITOSAN-ETHYLENE DIAMINE TETRA CETATE CHELATING RESIN ISOLATED FROM WINDU SHRIMP’S (Penaeus monodon) SHELL WASTE Marvin Horale; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

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A researchon the utilization of shrimp shell waste are abundan tin the province of East Kalimantan as the source of chitosan and synthesis of the derivative chelating chitosan-ethylene diamine tetra acetate (EDTA) resin and the retention of characterization for Cu(II) ions has been carried out. Chitin were obtained from Windu Shrimp’s (Penaeus monodon) shell through three ways, are deproteination, demineralitation and depigmentation. The obtained chitin were deacetylated with sodium hydroxide at temperature 150-160˚C during 1 hour to obtained chitosan, with contain was 64.4%. Synthesis chitosan-EDTA resin can be done by coupling reacts between diazonium ion from diazotation chitosan with EDTA at temperature 1-3˚C during 1 hour, the product of 70% yield was obtained. The Chitosan-EDTA resin was synthesized has characterization by using FT-IR spectroscopic and scanning electron microscope, shows the spesific functional groups of the resin.
PENGARUH PENAMBAHAN IKAN KEMBUNG (Rastrelliger kanagurta L.) DALAM PAKAN TERHADAP PENURUNAN KADAR TOTAL KOLESTEROL DALAM DARAH MENCIT (Mus musculus) JANTAN YANG HIPERKOLESTEROLEMIA Mila Fitriana; Rudi Kartika; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

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Fish is a source of omega-3 which is good for our health. This study used one type of fish that contains high omega-3 (Rastrelliger kanagurta L.). This fish as s feed against the decrease in total blood cholesterol levels in mice (Mus musculus) are hypercholesterolemia. There are 5 treatments used in this study, i.e positive control, negative control, and mice which given the addition of bloated fish on standard feed with 3 different treatments L1 (2:1), L2 (2:2), L3 (1:2). Parameters measurement of total cholesterol level of mice is using CHOD-PAP method. The principle used in determining the total cholesterol level of mice blood cholesterol obtained is (+) 142 ; (-) 86 ; (L1) 108 ; (L2) 87 ; (L3) 74 .The result of this study showed that bloated fish (Rastrelliger kanagurta L.) used to reduce the total blood cholesterol level of male hypercholesterolemia mice (Mus musculus). Keywords : total cholesterol, bloated fish, omega-3, Hypercholesterolemia, male mice
VALIDASI METODE PENENTUAN ARSENIK PADA SAMPEL AIR SUMUR BOR DENGAN MENGGUNAKAN SPEKTROFOTOMETER SERAPAN ATOM DI PT. GEOSERVICES BALIKPAPAN Bayu Iskandar; Aman Sentosa Panggabean; Rudi Kartika
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

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Research on the validation of As determination methods on wellbore water by using atomic absorption spectrophotometer at PT. Geoservices Balikpapan has been calculated. The validation method used is APHA-3114 C, with research stages such as linearity, detection limit, quantitative limit, accuracy, precision. The results showed that the linearity test had good result with R2 ≥ 0.9997. The detection limit value was 0,000038 µg/Land the quantization limit value was 0,00129 µg/L. The %KV value obtained is smaller than the 2/3 KVHorwitz value, indicating that this method has a good precision. The determination of As in drilled well water samples is 0.9167 µg/L, then below the standard threshold of clean water quality quality based on Permenkes. 416/Menkes/PER/IX/1990. Based on the results of the research, APHA-3114 B/C method can be used to determine As in drilled well water samples. Keywords: Validation method, arsenic, wellbore water, APHA-3114B/C, AAS-VHGA.
PENURUNAN KADAR ION LOGAM TEMBAGA (Cu) DAN COD PADA LIMBAH CAIR KELAPA SAWIT MENGGUNAKAN METODE ELEKTROKOAGULASI Ani Trisnawati; Alimuddin Alimuddin; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

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Penelitian tentang Penurunan Kadar Ion Logam Tembaga (Cu) dan COD Pada Limbah Cair Industri Kelapa Sawit dengan Menggunakan Metode Elektrokoagulasi telah dilakukan. Untuk memperoleh hasil penelitian optimal dilakukan berbagai pengukuran dengan variasi variasi elektroda, optimasi waktu kontak dan kuat tegangan.Pengukuran dilakukan menggunakan instrumen Atomic Absorption Spectrophotometer (AAS) dan metode titrasi. Hasil penelitian menunjukkan bahwa penurunan persen penyisihan ion logam Cu didapatkan hasil dari plat Al-Al pada titik optimum parameter lama waktu kontak didapatkan sebesar 78,487 % dan pada parameter kuat tegangan 84,607 %. Pada penyisihan kadar COD dengan parameter lama waktu kontak sebesar 79,545 % dan pada parameter kuat tegangan sebesar 82,954%. Sedangkan hasil dari plat Al-Cu pada titik optimum parameter lama waktu kontak didapatkan hasil pada penyisihan ion logam Cu sebesar 91,673 % dan pada parameter kuat tegangan sebesar 89,712 %. Pada penyisihan kadar COD dengan parameter lama waktu kontak sebesar 85,227% dan parameter kuat tegangan sebesar 82,954%. Kata Kunci : Elektrokoagulasi, Air Limbah Industri Kelapa Sawit, Tembaga (Cu), Alumunium (Al) dan Chemical Oxygen Demand (COD).
ANALISIS KADAR MERKURI (Hg) DALAM AIR SUNGAI MENGGUNAKAN METODE COLD VAPOR-ATOMIC ABSORPTION SPECTROPHOTOMETRY (CV-AAS) Margaretta D. R. N. S; Subur P. Pasaribu; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA Vol 1 No 1 (2022): Prosiding SNK 2022
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Analysis of mercury (Hg) levels in river water using the cold vapor-atomic absorption spectrophotometry (CV-AAS) method has been carried out. The basic principle of determining Hg in several river water samples is carried out by means of Hg2+ ions being reduced by reductants Sn2+ into gaseous Hg0 atoms, and then the Hg0 atomic vapors were analyzed quantitatively by the CV-AAS method at a wavelength of 253.7 nm. The analytical performance of the measurements obtained was very good, indicated by the linearity value (r) = 0.991, the Quality Control (QC) value) Hg is below the standard, which is 10%, and the results of mesurement of Hg levels in water samples around range concentration was -1.0305 sampai -0.7328 ppb. These results indicate that the Hg level in river water, according to Government Regulation No. 22 of 2021 concerning Implementation of Environmental Protection and Management, is below the threshold of the quality standard. Keywords: Hg, cold vapor-atomic absorption spectrophotometry (CV-AAS), River waters
PEMBUATAN DAN KARAKTERISASI EDIBLE FILM GALAKTOMANAN DARI BUAH NIPAH (Nypa fruticans Wurmb) DENGAN INKORPORASI EKSTRAK METANOL DAUN TAHONGAI (Kleinhovia hospita L.) SEBAGAI ANTIOKSIDAN Shintia Alifah R; Subur P. Pasaribu; Erwin Erwin; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA Vol 1 No 1 (2022): Prosiding SNK 2022
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Fabrication and characterization of edible films from galactomannan nipah fruit (Nypa fruticans Wurmb) with the incorporation of methanol extract of tahongai leaf (Kleinhovia hospita L.) as an antioxidant has been conducted. This study aims to determine the best concentration of methanol extract of tahongai leaves to increase the antioxidant activity of edible films using the DPPH (1,1-diphenyl-2-picrylhydrazyl) method. The results showed that the edible film containing galactomannan 1.5%, glycerol 25% and methanol extract of tahongai leaves with concentrations of 0%, 1%, 2%, 3% and 4% showed antioxidant activity with IC50 values of 224.02 mg/L, 215.82 mg/L, 153.51 mg/L, 129.48 mg/L and 107.87 mg/L respectively. The concentration of incorporation of methanol extract of tahongai leaves to produce the best edible film is 3% which increases antioxidant activity when compared to edible films without incorporation with properties having a moisture content of 15.04%, thickness of 0.21 mm, water vapor transmission of 43.70 g/m2/hour and SEM (Scanning Electron Microscopy) analysis showed the surface morphology was homogeneous and slightly rough. Keywords : Edible film; Galactomannan; Tahongai leaves; Antioxidant activity
EKSTRAKSI DAN PREPARASI GLUKOMANAN UMBI PORANG (Amorphophallus muelleri Blume) SEBAGAI EDIBLE FILM Juntia Kirana Pratiwi; Subur P. Pasaribu; Chairul Saleh; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA Vol 1 No 2 (2023): Prosiding SNKT II 2022
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Glucomannan extracted from porang tubers (Amorphophallus muelleri Blume) can be used as a raw material for made edible films. In this research, extraction of glucomannan with graded ethanol method resulted in a yield of 10% and the composition of the edible film forming solution used was 6% glucomannan porang tubers and 25% (w/w) glycerol. The resulted edible film was clear and transparent with the characteristics tested are water content, thickness and water vapor transmission respectvely 20.16%, 0.15 m2 and 22.89 g/m2/hour. Based on the results of SEM analysis showed that the surface of the edible film of glucomannan porang tubers, the morphology of the surface was somewhat smooth but still less homogeneous. So, efforts are still needed to improve the characteristics so that to acording the required standards Keywords: Preparation, edible film, glucomannan, porang tubers
Co-Authors -, Yasrin Adha, Laila Sufina Adhi Surya Pranata Surya Pranata Adhi Surya Pranata Surya Pranata, Adhi Surya Pranata Surya Adhitya Rinaldi Akhmad Rifani Akkas, Erwin Ali Murtopo Alimuddin Alimuddin - Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alimuddin Alya Yuni Maulana Amrina Rosyada Anggun Ridha Avitri Ani Trisnawati Anwar, Adliah Arif, Moh. Syaiful Arifin Syam Surya arifin syam syam Az Zahra, Upi Fathimah Bagus Muliawan Bayu Iskandar Bohari - Bohari Bohari Bohari Bohari Bohari Yusuf Bohari Yusuf Buchari Buchari Buchari Buchari Budiono, May Cahaya, Tentriati Chairul Saleh Darmin - Darwin, Chepy Dirgarini Julia Nurlianta Subagyono Eka Apriska S Kusuma Erwin - Erwin Erwin Erwin Erwin Erwin Erwin Erwin Erwin Erzha, Nutfahryza Fadilah Ramadhani Farida Kristiana Farlianti, Resma Lita Fatimah Islamunisa Filus, Tio Fitriana, Mila Friscylia Friscylia Gaanty Pragas Maniam, Gaanty Pragas Hariati, Hariati Hariati, Hariati Harum Widyastuti Hening Ayu Marinda Hutagalung, Sandi Christopher Idris Mandang, Idris Irviansyah, Alfian Iskandar, Bayu Joni Rahman Josephine Josephine, Josephine Juntia Kirana Pratiwi Khasanah, Manja’a Kumalasari, Anisa Kurniasih, Ririn Feby Kusmiaty, Prilianda Leonardus Lewo Hayon Lianasari, Ika Yekti Lossi Hotmaida Simanjuntak Lumban Gaol Veronica Destiana M. Bachri Amran Manja’a Khasanah Margaretta D. R. N. S Marvin Horale Pasaribu May Budiono Mayang, Julia Agustin Menono, Fera Friskaneke Mila Fitriana Muhammad Asfian Nur Muhammad Bachri Amran Muhammad Rizky Muhammad Robiansyah Nanang Tri Widodo Nanang Tri Widodo Nauval Dwi Fadillah Nazaratun Thaiyibah Noor Hindryawati Noor Hindryawati, Noor Nur, Nana Septiana Nurhasanah Nurhasanah Oktavia, Dwina Putri Oktaviani, Reka pakasi, Resy Prayuda, Adif Putri, Amelia Putri, Rinda Anisyah RAHMAT GUNAWAN Rahmat Gunawan Rani Novia Ulya Rida Awliyani Rientha Septiana Rika anggraini Rina Rina Ristia Asri Fidayana Rita Hairani Rudi Kartika, Rudi Rumengan, Nur Khamillah Sadijah Achmad Saepudin Suwarsa Saibun Sitorus Saibun Sitorus Sandi Christopher Hutagalung Sari, Ermalia Lintang Sari, Ika Yekti Liana Sari, Rahma Juwita Septiana, Rientha Shintia Alifah R Soerja Koesnarpadi Soerja Koesnarpadi Subagyono, Dirgarini Julia Nurlianti Subur P Pasaribu Teguh Wirawan Teguh Wirawan, Teguh Tika Widyastuti Tio Filus Trisnawati, Ani Victoria, Stefanie Willem Hendrik G Wirdhaningsih Wirdhaningsih Yasser Arafat Yulianti Kartika Yulieta, Afifah Nur Yusuf, Irfan Maulana