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INDONESIA
Jurnal Zeolit Indonesia
Published by Institut Teknologi Bandung
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
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Articles 202 Documents
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INFLUENCES OF TIME AND RATIO OF Si/Al ON FORMATION ZEOLITE A FROM BOTTOM ASH CARBON FREE PLTU PT. IPMOMI WITH HYDROTHERMAL METHODS R. A. Syukuri Nikmah; Nurul Widiastuti; Hamzah Fansuri
Jurnal Zeolit Indonesia Vol. 7 No. 1 (2008)
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This study aimed to utilize bottom-ash PLTU PT. IPMOMI, Probolinggo. Synthesis zeolite A conducted with directly method of hydrothermal. Initially, bottom-ash calcined at temperature of 800oC during 4 hours for eliminating residu of carbon from baking of coal, then it was dissolved with alkali NaOH, NaAlO2 and water deionization with comparison molar of 3.165 Na2O: Al2O3: 1.926 SiO2: 128 H2O. Crystallization of hydrothermal conducted by variation time (12-144 hours) and ratio molar of Si/Al (1; 1.2 and 1.4). The result XRD analysis showed that kinds form of zeolite is mixture of zeolite A, X, P and sodalite. The most form dominant of Zeolite with various variations condition hydrothermal is zeolite A with orthorombik structure which was formed at hydrothermal temperature of 160°C during 24 hours.
VEGETATIF GROWTH OF DENDROBIUM ORCHID (Dendrobium sp.) ON ZEOLITE APPLICATION AS MEDIA PLANTING AND LIQUID FERTILIZER SUPPLEMENT Azlina Heryati Bakrie
Jurnal Zeolit Indonesia Vol. 7 No. 1 (2008)
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To determine the growth seeds of Dendrobium plant with mixture application media of coconut coir, fern, zeolite, and liquid fertilizer supplement have been done by the research in greenhouse Agricultural Faculty, University of Lampung. The treatment was arranged in a 2x5 factorial. The treatment was arranged in Randomized Perfect Design Group, with three replications. The first factor is mixture of growth media: coconut coir and fern (m1); coconut coir, fers, and zeolite (m2). The second factor is the application of liquid fertilizer supplement Hortigro Green with 5 levels of concentration: 0.5 g l-1 (h1); 1 g l-1 (h2), 1.5 g l-1 (h3), 2 g l-1 (h4); and 2.5 g l-1 (h5). The results showed that the mixture media of coconut coir, fern, and zeolite is producing bulb Dendrobium higher of 1,15 cm (16,39%) than without giving zeolite. Application of Hortigro fertilizer until 2,5 g l-1 still increasing the bulb height, leaf number, and length of the top three leaves of Dendrobium linearly. Application of Hortigro fertilizer every 1 g l-1 on a mixture media of growth with zeolite increasing the length of the top three leaves of 0.49 cm while in mixture growing of media without zeolite was increasing the length top three leaves of 1.63 cm. Application of zeolite in a mixture growing media was producing root structure better than the application without zeolite (Fig. 4).
Utilization of Zeolite as Tailing Reclamation Material of Gold mining Suwardi Suwardi; Kharisma Suzana K.
Jurnal Zeolit Indonesia Vol. 7 No. 1 (2008)
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Gold mining is one of the important mining in Indonesia, besides the mining of coal, nickel, copper, etc. Gold mining in Pongkor (PT Antam) applied deep mining system. Besides producing gold as the main product, mining activity also produces waste in the form of tailing obtained from its processing. Tailing is mining residue, whose gold and silver contents have been extracted, and the tailing has somewhat inferior chemical properties if returned to nature as planting media. Organic matter and zeolite are known as ameliorant which may be used as materials for improving physical and chemical properties of tailings. The objectives of this research were to study the effects of zeolite and compost application on the chemical properties of tailing, growth of sengon plants, and absorption of lead (Pb) by plants. Zeolite with the dosages of 0%, 10%, 20% and 30%; and compost with dosages of 0%, 10%, and 20% were added to tailings then used for planting seedling of sengon (Paraserianthes falcataria L. Nielsen). The results showed that tailing from gold mining of Pongkor had neutral pH values; high content of Ca and Pb; but very low CEC, organic-C, total- N, and bases other than Ca. Addition of zeolite and compost improve the chemical properties of tailing for growing plants. Zeolite had effect in increasing CEC, K and Ca; where as compost had effect in increasing all nutrient elements. Addition of zeolite and compost increased the height, diameter and crown width of sengon plants observed, although did not show significant effect (at α level of 5%), and was able to reduce Pb absorption in root and plant crown.
PROCESSING OF URANIUM WASTE USING ALUMINA SILICA PHOSPHATE Aisyah Aisyah; Herlan Martono; Wati Wati
Jurnal Zeolit Indonesia Vol. 7 No. 2 (2008)
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Uranium waste generated from the utilization of nuclear technology on radioisotope production, nuclear fuel production, calibration of fuel post-irradiation, and the purification of uranium from yellow cake. Uranium is a long-lived radionuclides and hazardous if it was entered in human body, thus requiring appropriate treatment with high safety. The processing conducted by separated the uranium which was contained on waste with ions exchange process. Uranium has been separated, later then immobilized with the polymer. The study of simulation uranium waste processing using an Alumina Silica Phosphate (ASP) has been conducted. Simulation uranium waste with the concentration of 0,05 g/l was contacted to ASP with contact timer and pH as a parameters. The Alumina Silica Phosphate which saturated with uranium, later then immobilized with epoxy resin polymer by total of waste contents as a parameter. The immobilization was conducted by mixing ASP which saturated with uranium and epoxy resin. The study showed that the best composition of ASP was obtained at the ratio of 1:1, contact time of 15 minute, and pH of 7 with absorption of uranium about 93,5%. The characteristic of polymer and the immobilization waste showed that optimum of waste content is 20% of weight with the density of 1,0538 g/cm3; compressive strength of 19,96 kN/cm2 and there was not detected the leaching of uranium which out from the polymer-waste. Therefore, ASP can be used on processing of uranium waste and could be suggested to be applied on Radioactive Waste Management Installation.
POTENCY OF ZEOLITE IN INDONESIA Kusdarto Kusdarto
Jurnal Zeolit Indonesia Vol. 7 No. 2 (2008)
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Zeolite is one of non-metallic minerals or multi-use industrial minerals due to its physical and chemical characteristic as an absorbent, ion exchange, molecular filters and as a catalyst. Minerals in zeolite group are generally found in tufa rocks formed from volcanic-ash sediments resulting from alteration, diagenesis, and hydrothermal processes. Indonesia is laid in the volcanic series from Sumatra, Java, Nusa Tenggara, until Sulawesi Islands. One of the products of volcanic tuff wide spreading form the volcano, partially or wholly have undergone a process of alteration or diagenesis to become zeolite. Geologically, Indonesia has big potential to produce zeolites such as those found in Lampung, West Java, Central Java, East Java, East Nusa Tenggara, and Sulawesi, with the estimate resources of 447,490,160 tons.
NPK FERTILIZER SLOW RELEASE WITH ZEOLITE AS ONE FILLER AT TEA GARDEN Pudjo Rahardjo
Jurnal Zeolit Indonesia Vol. 7 No. 2 (2008)
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The fertilizer is one of factors production besides land, water, seed, and cultivation technology. Without giving fertilizer which suitable with recommendation the needs of the plants to fulfill nutrient balance, potential product or potential of plant genetics will not be achieved. Proper fertilizer is giving fertilizer with exactly type, right dosage, correct method and time, and effectively to increase productivity, and economics efficiency. This is contained in slow release fertilizer which wearing zeolite filler. NPK fertilizer slow release using zeolite as one of filler with ratio of N:P:K:Mg = 25:5:10:2 and 23:7:10:2 with doses of 400, 600, and 800 kg/ha/year applied on two times a year. Whereas, recommended doses is using a singular fertilizer of N= 300, P2O5 = 94, K2O = 180, MgO = 54 kg/ha/year, 4 applications/year. Dosage of 800 kg/ha/year of formula I and formula II was increasing treetops. Dosage of 400 kg/ha/year and 600 kg/ha/year giving lower treetops. It is compared with the control without fertilizer treatment was showed a significant increase (115 to 129%) in clones of tea 2025 in Tea Garden Canaan.
SYNTHESIS AND CHARACTERIZATION OF ZSM-5 MESOPOROUS WITH VARIATION RATIOS OF SiO2/Al2O3 Susi Nurul Khalifah; Didik Prasetyoko
Jurnal Zeolit Indonesia Vol. 7 No. 2 (2008)
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ZSM-5 Mesoporous with variation ratios of SiO2/Al2O3 20, 35, 50, and 100 have been successfully synthesized. Phase of mesoporous created using Cetyltrimethylammonium bromide (CTABr) templates. Crystal obtained has an acidity and higher thermal stability. Diffraction peaks typical of ZSM-5 appeared at 2θ = 7-9 ° and 2 θ = 23.02 °, while typical peak of mesoporous materi als appeared on 2θ
SYNTHESIS AND CHARACTERIZATION OF COMPOSITE ZEOLITE-RESIN POLYMETHACRYLATE Yusuf Nampira
Jurnal Zeolit Indonesia Vol. 7 No. 2 (2008)
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Composite of Zeolite-resin polymethacrylate have been made with various compositions of zeolite on composite. The composite were made by homogenous mixture of zeolite powder with powder of tetrahidro furfuryl methacrylate, methacrylate polymerization which was conducted by pasta phases with mixing 1 ml mixture solution of tetrahidro furfuryl methacrylate and hydroxy propyl methacrylate. A big part of zeolite in product composite was in the polymer solution phase. The balance between supporting material and matrix material around the zeolite on composite of zeolite-resin polymethacrylate obtained on the fraction of zeolite in the composite between the 46.67% of weight up to 70% of weight. Strength and hardness of zeolite-resin polymethacrylate depends on balance between zeolite and resin polymethacrylate. The optimum hardness of this composite reaches value of 29,7 N/ım2, which obtained from composite that have a fraction zeolite 46,67% of weight.
THE UTILIZATION OF ZEOLITE AS MATERIAL PRODUCTION OF BIOPESTICIDE ACTIVE NEMATODA STEINERNEMA SPP. WITH GRANULAR SHAPED Bambang Setyobudi; Wagiyana Wagiyana
Jurnal Zeolit Indonesia Vol. 7 No. 2 (2008)
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The study about biopesticide granular shaped has been conducted by utilizing zeolite and vertisol. Both materials are used as media that functions to storage Steinernema. The purpose of this study was to find method and formulas to produce biopesticide active nematodes with granular shaped that have high viability and effectiveness and can last long live. The result showed that drop method on combination of zeolite and vertisol material produce granule with ± 8 mm diameter and weight of ± 0.3 g. Biopesticide on granule shape that mixture result of zeolite, vertisol, and Steinernema spp. able to maintain viability of Steinernema spp. until nine weeks. The formulas to produce granule biopesticide an effective until nine weeks is a combinations of mixture 50% up to 75% zeolite on vertisol.
THE DESULFURIZATION OF DIESEL FUEL USING NATURAL ZEOLITE ADSORBENT Anda Lusia
Jurnal Zeolit Indonesia Vol. 8 No. 1 (2009)
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Common way has been done to reduce sulfur in fuels is by conventional techniques of hydro desulphurization (HDS), which needs high investment to reduce sulfur bounded as aromatic organosulphur. The alternative technologies of sulfur reduction is using a zeolite absorbent are promising due to ambient operating condition and simple technology. The experiment of sulfur reduction conducted by batch with temperatures around 25oC and contact time around 2 hours with stirring magnetic stirrer speed 100 RPM and addition some of weight zeolites into 100 mL of diesel fuels. Application of natural zeolite Lampung and Malang in experiment of sulfur reduction at diesel fuel with addition 1 g showed that sorption capacity (q) of zeolite Malang (0,58-0.60) larger than Zeolite Lampung (7,17) which is equally to sulfur reduction (h) of zeolite Malang (i.e. 7,17) in which larger than that of zeolite lampung (i.e. 1,48%). The desulphurization treatment using Ni metal ion addition into zeolite shown the increasing of sorption capacity of Ni-Zeolite toward the decreasing of sulphur in diesel fuels. The highest improvement capacity of sorption occurred on zeolite Malang with addition 0.5 g Ni-zeolite that is 1.72.

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