Claim Missing Document
Check
Articles

Found 32 Documents
Search

Pembuatan Karbon Aktif dari Batubara Pitulima, Janiar
PROMINE Vol 1, No 1 (2013): PROMINE
Publisher : PROMINE

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5.683 KB)

Abstract

ABSTRAKKarbon aktif adalah karbon dalam bentuk amorf yang mendapat perlakuan khusus sehingga mempunyailuas permukaan dan daya adsorpsi yang besar. Karbon aktif banyak dimanfaatkan sebagai adsorber,terutama pada industri-industri kimia, farmasi, makanan, dan industri pengolahan air. Pembuatankarbon aktif pada penelitian ini menggunakan batubara Kungkilan Sumatera Selatan. Prosespembuatannya terdiri dari tiga tahap yaitu oksidasi, karbonisasi dan aktivasi. Tahap oksidasi dilakukanselama 2 jam pada temperature 250 oC dan tahap karbonisasi dilakukan pada temperature 600 – 800 oCdengan waktu 15 menit sedangkan pada tahap aktivasi digunakan kukus sebagai gas pengaktivasi denganwaktu aktivasi 15 menit pada temperature 950 oC. Karbon aktif yang dihasilkan di tentukan kuantitasdaya serapnya dengan bilangan iodine. Hasil terbaik yang diperoleh dari penelitian ini adalah karbonaktif dengan bilangan iodine 500 mg/g, yang didapat pada temperature karbonisasi 800 oC dantemperature aktivasi 950 oC dengan ukuran partikel -45+60 mesh.ABSTRACTActivated carbon is carbon in amorf form which is undergone special treatment to have specific surfacearea and adsorbtion ability. Activated carbon have many applications as adsorber especially on chemicalindustries, pharmacies, foods, and water treatment. Activated carbon in this study is prepared fromKungkilan, East Sumatera Coal. The preparation process consist of three stage, oxidation, carbonisation,and activation. Oxidation stage is done for 2 hours on 250 oC. Carbonisation stage is done for 15 minuteson 600 – 800 oC. Activation stage is done using steam as activating agent for 15 minutes on fixedtemperature 950 oC. Activated carbon produced is then quantified its absorbing ability by iodine number.Experiment show that activated carbon with iodine number 500 mg/g which prepared by carbonisation on800 oC and activation on 950 oC for carbon size -45+60 mesh have the best adsorbing ability.Keywords: activated carbon, coal.
Evaluasi Kelayakan Sumber Air Baku pada Kolong yang Tercemar Tailing dari Aktivitas Remaining Bijih Timah Janiar Pitulima; Irvani Irvani
PROMINE Vol 4 No 2 (2016): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (224.753 KB) | DOI: 10.33019/promine.v4i2.109

Abstract

Land Clearing for tin ore mining on Bangka Island for hundreds of years produces mine ponds calledkolong. Water resources at the old age kolong have been utilized by the community as a source ofdomestic water, including the source of water by Regional Drinking Water Company (PDAM). Illegal tinore mining since 2000 until now by the community (unconventional mining) has caused pollution ofPDAM water resources by mining waste of tailings. Primary and secondary data collection has beendone on Kolong PDAM Tirta Bangka, PDAM Tirta Pinang and PDAM Sejiran Setason. Physical datacollection of water and sediments to obtain parameters of temperature, smell, soluble and suspendedsolids and turbidity. Chemical analysis of water and sediments including pH, heavy metal of Fe, Al, Pb,and Cu using AAS and XRF. Feasibility evaluation of the water using Permenkes RI Number907/Menkes/SK/VII/2002. Heavy metals were founded on all the water of kolong are Fe, Al, Cu andPb. Heavy metal in sediment are Fe, Cu, Pb, Sn and As. Kolong Merawang has a large distribution ofFe, Al, Cu and Pb in water and sediment. Al metal exceeds the threshold in Kolong Merawang andPedindang (1.01 mg/L and 0.35 mg/L). The Fe composition at all kolong sediment is very large innumber. The distribution of dissolved Pb metal in water exceeds the threshold at all kolong, especiallyon sediment of Kolong Merawang and Pedindang. Water resources at all kolong have met in physicalfeasibility but exclude their chemistry
MITIGASI BENCANA BANJIR KECAMATAN TAMAN SARI KOTA PANGKAPINANG Janiar Pitulima
Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung Vol 5 No 1 (2018): Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jpu.v5i1.678

Abstract

Kegiatan ini diterbelakangi oleh kepentingan masyarakat khususnya permasalahan mengenai penanggulan bencana banjir yang ada di kota Pangkalpinang terutama di kelurahan Rawabangun dan Gedung Nasional kecamatan Taman Sari. Salah satu penanggulangan bencana tersebut adalah dengan melakukan mitigasi. Tujuan dari KKN ini adalah untuk mengidentifikasi daerah rawan terkena bencana banjir dengan membuat peta wilayah rawan banjir, melakukan pencegahan dan pengurangan resiko banjir, melakukan upaya pengembangan dan sosialisasi peringatan bahaya banjir. Metode pengumpulan data untuk mitigasi bencana banjir adalah dengan melakukan identifikasi masalah di Kelurahan Gedung Nasional dan Kelurahan Rawabangun. Identifikasi masalah dilakukan melalui survei langsung mewawancarai masyarakat, melihat drainase saluran air dan membuat peta kontur pada kelurahan tersebut. Berdasarkan kegiatan KKN XI UBB tahun 2016 yang telah dilakukan yaitu suvey dan pemetaan, pembuatan biopori, pengembangan dan sosialisasi hidup besih dan sehat. Lubang Biopori di Kelurahan Rawa Bangun dan Gedung Nasional berjumlah 180 lubang. Sosialisasi hidup bersih dan sehat sebagaimana yang telah dilakukan memfokuskan pada penyuluhan hidup bersih dan sehat pada siswa-siswi Sekolah Dasar. Serta program kerja penunjang dari “Mitigasi Bencana Banjir” diantaranya seperti kegiatan membersihkan lingkungan, pembuatan peta rawan bencana, pembuatan tugu peringatan banjir dan penyuluhan sanitasi pemukiman sehat
Studi Unsur Radioaktif Thorium (Th) dan Uranium (U) di Pulau Bangka Irvani Irvani; Janiar Pitulima
PROMINE Vol 5 No 2 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.21 KB) | DOI: 10.33019/promine.v5i2.916

Abstract

As one of the island that producing tin ore mineral (cassiterite), Bangka Island has probably a bigpotential of tin associated mineral that contains radioactive elements like Thorium (Th) and Uranium(U). Th and U can be one of potential future prospect elements expecially for nuclear energy. Th andU elements bearing minerals in Bangka Island not yet exploited. They take out from the tin ore miningand becoming tailing, and then through the surface water flows or shallow sea water as sediment. Thestudy goal is to getting the number of radioactive Th and U elements using surface sediment sampleand then interpretation some part of their spatial distribution form. The Surface sediment data hasbeen collected on 2 sites Kolong in Muntok District West Bangka Regency, 3 sites in MerawangDistrict Bangka Regency, 9 sites in Pangkalpinang City, 2 sites in Central Bangka Regency and 2sites in South Bangka Regency. Chemistry analysis of sediments for identification the presence of Thand U elements. Radioactive element of Uranium (U) almost presence at all shallow surfacesediment 4.842 - 229.2 ppm except nul in 1 sample. Thorium (Th) just presence in a part of sedimentsample. One site as especially case study Kacang Pedang Retention Ponds, shows Th and Uradioactive elements has the heterogenity spatial pattern.
Rancang Alat Magnetic Separator Untuk Meningkatkan Kadar Bijih Timah Di Laboratorium Teknik Pertambangan Universitas Bangka Belitung Janiar Pitulima; E.P.S.B Tamantono E.P.S.B Tamantono; Haslen Oktarianty
PROMINE Vol 7 No 2 (2019): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v7i2.1642

Abstract

Magnetic separator testing uses two variables, namely the speed of the roller on the conveyor belt andthe feed speed. Due to the minimum number of variations that can be used in magnetic separatortesting, roller speed testing is used at 0.6 m / s and 0.7 m / s. the variation of figures at the feedingspeed of 0.21 kg / s and 0.35 kg / s so that 8 samples obtained from the processing of a magneticseparator with 4 magnetic samples and 4 non-magnetic samples. The feed samples used wereprepared by drying and sifting into 3 size fractions to be used in the grain counting analysis process sothat the percentage of minerals contained in the sample were found: 15.82% Cassiterite, 63.95%Ilmenite, 6.09% Monazite, 0.48% Pyrite / Marcasite, 1.61% Zircon, 1.44% Topaz, 0.65% Tourmalineand 9.96% Quartz. The effect of roller speed on the increase tin ore content is still common, this isbecause there are not many experiments carried out so that taking the trend of the influence of theroller speed is too fast. The effect of feed speed, the greater the feed speed on the magneticseparator, the smaller the tin ore content obtained.
PENINGKATAN KUALITAS AIR MINUM MELALUI METODE PENYARINGAN BERTINGKAT BERBASIS LIMBAH KULIT TELUR DI DESA TERU KABUPATEN BANGKA TENGAH Ristika Oktavia Asriza; Janiar Pitulima; Verry Andrei Fabiani; Robby Gus Mahardika
Jurnal ABDI: Media Pengabdian Kepada Masyarakat Vol. 4 No. 1 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ja.v4n1.p27-31

Abstract

In accordance Regulation Minister of Health Republic of Indonesia No. 492 / MENKES / PER / IV / 2010 about Quality Requirements of Water Drink, the acidity (pH) of water drink about 6.5 - 8. Based on situation analysis, Teru Village of Central Bangka Regency is below the standard, which about 4.1. The low pH of water drink in Teru village cause negative effect for health. So, an effort to improve the quality of water drink is needed. Through IbM Devotion of Society was created by filtration tool on eggshell-based waste in Teru Village, Central Bangka Regency. By utilizing an egg shell waste containing calcium carbonate, it is expected to increase the pH of the water. Based on the results of trials in the field, the results obtained that there was an increase in the pH of water drink to 6.91, which is in accordance with drinking water quality standard.
PELATIHAN DAN SOSIALISASI TEKNOLOGI PEMETAAN DALAM MITIGASI BENCANA BANJIR KOTA PANGKALPINANG irvani Fachruddin; EPSB Taman Tono; Janiar Pitulima
LOGISTA - Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 4 No 1 (2020)
Publisher : Department of Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Andalas Kampus Limau Manis - Padang, Sumatera Barat Indonesia-25163

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1296.488 KB) | DOI: 10.25077/logista.4.1.39-48.2020

Abstract

Kota Pangkalpinang memiliki topografi relatif rendah dan berbatasan dengan laut di bagian timur. Pendangkalan aliran sungai, serta alih fungsi lahan menyebabkan bencana banjir pada musim hujan. Berdasarkan permasalahan dibutuhkan peningkatan penguasaan teknologi pemetaan bagi aparatur kecamatan dan kelurahan, pembuatan peta banjir, dan mensosialisasikannya kepada kalangan pelajar. Program dimulai dengan survey pengumpulan data koordinat banjir, diskusi kelompok terarah dan pelatihan pembuatan peta, dan sosialisasi hasil. Hasil program pengabdian telah meningkatkan kapasitas para aparatur kecamatan dan kelurahan dalam penguasaan teknologi pemetaan. Pada peta banjir dan genangan air Kota Pangkalpinang menunjukkan pola sebaran banjir terdapat pada morfologi dataran rendah disepanjang aliran Sungai Rangkui. Pelajar dan mahasiswa peserta sosialisasi mitigasi bencana banjir mampu memahami materi secara optimal. Keseluruhan hasil program pengabdian secara signifikan memberikan sumbangsih dalam implemetasi teknologi pemetaan untuk mitigasi bencana banjir. Kata Kunci: Banjir, Mitigasi, Pemetaan, Pelatihan, Sosialisasi ABSTRACT Pangkalpinang City has a relatively low topography and bordered by the sea in the east. the stream siltation and land-use change cause floods during the rainy season. Based on the problem, it is needed to improve the mastery of mapping technology for district and village apparatus, making flood maps, and disseminating them to students. The program starts with collecting flood coordinate data, focus group discussions and map-making training, and socialization the result. the program has increased the capacity of the district and village apparatus in the mastery of mapping technology. On the map of floods and puddles of Pangkalpinang City shows the flood pattern distribution found in the lowland morphology along the Rangkui River. Students and scholars participating in the flood disaster mitigation socialization understood the material optimally. The overall results of the community service program significantly contributed to the implementation of mapping technology in flood mitigation. Keywords: Flood, Mitigation, Mapping, Training, Socialization
Fotodegradasi High Density Polyethylene Yang Mengandung Aditif Okso-Biodegradasi Ristika O. Asriza; Janiar Pitulima
Indonesian Journal of Chemical Research Vol 4 No 2 (2017): Edisi Bulan Januari (Edition For January)
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2017.4-ris1

Abstract

High Density Polyethylene (HDPE) is a type of plastic that widely used for packaging because it has good mechanical properties. HDPE is naturally non-biodegradable, and the consequence it will increase plastic waste that will damage the environment. To increase their biodegradability, it is necessary to add an oxo-biodegradation additive in the form of a stearate metal compound. This oxo-biodegradation additive is a chromophore that can absorb UV light. Polyethylene oxo-biodegradation films are prepared by mixing HDPE and cobalt stearate to homogeneous on various compositions. To know the effect of adding cobalt stearate into HDPE has done by photodegradation process. The polyethylene oxo-biodegradation film was given irradiation using UV light in the wavelength range 280-300 nm at room temperature for 10 days. After irradiation, in the ATR spectrum shows an absorption peak at 1712 cm-1 wavenumber indicatied the presence of a carbonyl group with a stronger intensity. The higher concentration of cobalt stearate added in HDPE, increases the peak intensity of carbonyl group. This is due to the increasing number of chromophores from cobalt stearate that can absorb UV light, the faster the breakdown of HDPE chains into small fragments so that HDPE is rapidly degraded in nature.
Studi Logam Berat dalam Air dan Sedimen Kolong Retensi Kacang Pedang Pasca Penambangan Timah Irvani Irvani; Janiar Pitulima
PROMINE Vol 4 No 1 (2016): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (281.459 KB) | DOI: 10.33019/promine.v4i1.104

Abstract

Tin mining activities in hundred years in Bangka Island formed thousands of pond water, referred to askolong. The water from kolong has been utilized by arounds people as a source of clean water and tobe the main water resources by local water company (PDAM). Unconventional mining around kolongcaused contamination of water by heavy metals from tailing, therefore the study of heavy metals inkolong is very important to do. Data collection was done through the approach of physical andchemical parameters of water and sediment Kolong Retention Kacang Pedang. Water and sedimentphysical data collection for getting parameter of colour, flavor and smell. Chemical analysis of waterand sediment cover of Dissolved Oxigen (DO), Chemical Oxigen Demand (COD), Total DissolvedSolid (TDS) and Total Suspended Solid (TSS), pH, and the content of heavy metals usingspectrophotometer and XRF. As a result, the heavy metal composition of Fe, Cu, Pb and Cd inwater exceed the normal threshold. Element Fe in sediment has the largest number over all sample,followed by Zn, Cr, Cu, Pb and As. The metals of Cu and Zn is absent from sediment around outletarea of Kolong Retention Kacang Pedang
Studi Keterdapatan Unsur Tanah Jarang REE Ce dan Y pada Berbagai Kolong di Pulau Bangka Irvani Irvani; Janiar Pitulima
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.948 KB) | DOI: 10.33019/promine.v5i1.120

Abstract

Rare earth element REE is very potential future prospect mineral resources in Bangka Island, hence awell developed REE must have a high economic value in the future. As one of the biggest region thatproducing tin ore mining (cassiterite) for hundreds of years, REE potential not yet explored andexploited well until now days in Bangka Island, and was left abundant in ex-mining area. They carriedout from the tin ore mining and become mine waste or tailing and then through the stream flows to besuspension or bed load sediment. The aim of this study is to identify the present rare earth Ce and Ybased on shallow surface sediment samples and their spatial distribution from a number of mineponds called kolong. Primary data collection of shallow surface sediments has been collected onKolong Argotirto and Menjelang West Bangka District, Kolong PLN and Merawang in Bangka District,Kolong Rentensi Kacang Pedang and Pedindang in Pangkalpinang City. Geochemical sedimentsanalysis just for identification the presence of rare earth Ce and Y. Rare earth element of cerium(Ce) just presence in a few sample sediment, but for yittrium (Y) almost presence at all shallowsurface sediment 0,9 - 31,6 ppm. The spatial distribution of rare earth Ce and Y show heterogeneity inlaterally.