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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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THE REFINEMET OF FRAMEWORK STRUCTURES OF NATURAL MORDENITE AND CLINOPTILOLITE CRYSTALS USING RIETVELD METHOD Suminta, Supandi
Jurnal Zeolit Indonesia Vol 4, No 2 (2005)
Publisher : Jurnal Zeolit Indonesia

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Abstract

Framework structures of clinoptilolite and mordenite phases in natural zeolit from Bayah have been succesfully analysed using Rietveld Method. The diffraction intensity data were collected using X-Ray Difractometer (XRD) at P3IB-BATAN. The refinement of the clinoptilolite and mordenite phases have been carried out and the results show that there are poly cation K-Mg clinoptilolite phase, with space group symmetry of C2/m No.12, monoclinic crystal system and poly cation Ca-Na mordenite phase, with space group symmetry of Cmcm No.63, orthorombic crystal system. Chemical formulas of clinoptilolite and mordenite phases are (K5,17 Mg0,16) (Al6Si30O72). 24H2O and [(Na 5,63 Ca 1,13) (Al8Si40O96). 22H2O per unit cell respectively. Fitting quality (goodness-of-fit) gave a value of Rwp = 10,34%.
EFFECTS OF ZEOLITE AND LIQUID WASTE OF MSG (MONOSODIUM GLUTAMATE) ON PRODUCT OF NILAM PLANT (Pagostemon Cablin BENTH) IN ULTISOLS Kusumastuti, Any; Parapasan, Jonathan; Riniarti, Dewi
Jurnal Zeolit Indonesia Vol 6, No 1 (2007)
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Abstract

Ultisols is soil which predominate area in Lampung Province. This soil is rather acid until acid reaction, low in cation exchange capacity (CEC) and organic materials content so that cause inefficient of fertilization. Zeolite is a available and potential mining products and it is abundant available in Lampung Province. It can also to improve CEC of soil so that the absorption of soil to fertilizer can be increased. Besides, it has a high negative charges, so that it can also absorbed of nutrients and discharged it slowly. A liquid waste of MSG is an agroindustrial waste which enough potential. The waste contains the high enough organic materials and compound, especially nitrogen. Low of organic materials at Ultisols, caused needed an input to this management, for example combination usage of zeolite and liquid waste MSG. Nilam is plantation crop which have a good enough prospect, and have potency as state resource of stock-exchange and also can open the new employment. This research arranged in garden of Lampung State Polytechnic, Hajimena district, with Ultisols, it’s started from July until January 2006. The research was conducted on factorial method with randomized block design, consist of 2 factors, zeolite application Z0 (0;1,5; 3,0; 4,5 ton/ha), and liqud waste of MSG (0; 2000; 4000, 6000 l/ha). The data were analysed and then, if the F-test is significantly different we continued with mean of BNT test. Using zeolite at 1,5 ton/ha level increased the plant fresh weight and at 3,0 ton/ha level improved the plant dry weight. Using liquid waste of MSG at of 6000 l/ha level, the highest result of fresh weight and dry weight of plant. Interaction of zeolite and liquid waste of MSG at combination of 4,5 ton/ha and 2000 l/ha showed the highest result on fresh weight and dry weight of root. The combination of 3,0 ton/ha and 6000 l/ha of zeolite and liquid waste of MSG showed the highest result on the ratio of root weight.
Utilization of Zeolite as Tailing Reclamation Material of Gold mining Suwardi, Suwardi; K., Kharisma Suzana
Jurnal Zeolit Indonesia Vol 7, No 1 (2008)
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Abstract

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.
THE EFFECT OF ZEOLITE RATES ON GROWTH Cd SHOOT CONTENT AND YEILD OF THE LATTUCE (LACTUCA SATIVA L.) UNDER HEAVY METAL CADMIUM STRESS Noertjahyani, Noertjahyani; Sondari, Nunung
Jurnal Zeolit Indonesia Vol 8, No 2 (2009)
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Abstract

Cadmium is a non-essential heavy metal which can poison the plants. It is can inhibit the growth of plants moreover cause cell death. The lettuce is one of vegetables that are usually consumption on fresh. This plant adsorbing Cd from soil and accumulate on leaf greater than root. The study aimed to study the effect of zeolite rates to growth, cadmium shoot content, and lettuce (L. sativa) under Cd stress condition. The experiment was conducted on February until April 2009 at greenhouse of Agriculture Faculty, Winaya Mukti University Tanjungsari- Sumedang with elevation of 850 asl. The experiment design was using a Randomized Block Design (RBD) with 4 treatments and repeated six times. Zeolite rates treatments are 0 ton ha-1, 2 ton ha-1, 4 ton ha-1, and 6 ton ha -1 of zeolite. The result showed that given zeolite is not only could increase a plant height, leaf number, plant fresh weight, dry weight fade, root fade ratio, but also could reduce a Cd shoot content of lettuce. Application of 6 ton ha-1 zeolite not only gave the best effect to plant height age of 14 days after planting (dap), 21 dap, and 28 dap, leaf number/plant, fresh weight/plant, dry weight fade, root fade ratio, but also reduce a Cd shoot content of lettuce at 25,14%.
EXTRACTION OF ALUMINA FROM BAUXITE RESIDUE FOR PREPARATION OF SYNTHETIC ZEOLITE WITH FERRUM CONCENTRATE AS BY PRODUCT Aziz, Muchtar
Jurnal Zeolit Indonesia Vol 9, No 2 (2010)
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Abstract

Extraction of alumina from bauxite West Kalimantan (containing 45% of Al2O3 and 16% of Fe2O3) has been conducted, it is produce a alumina and bauxite residue (red mud). The residues were still containing alumina about 20% and ferrum (Fe2O3) about 37%. On further, residues processed through baking or sintering with mixture of soda and lime (lime-soda sinter process) at temperature of 800°-1100°C. Sintering which dissolved on dilute solution of sodium carbonate, was produces a aluminum hydrate (2NaAlO2) and residue of dissolution. Dipresipitasi solution produces aluminum hydrate precipitate (Al (OH) 3) that can be utilized as a raw material of synthetic zeolite. Ferrum minerals on residues dissolution was concentrated with 1000 gauss magnetic separator that produces a ferrum concentrate as a side effect. The result showed that alumina about 75% to 85% could be extracted or recovered from residues of bauxite with 98.7% of Al2O3, and also it was produced a ferrum concentrate grades 66% of Fe2O3 (46 % Fe) with acquisition of 40% as a side product.
INDONESIAN NATURAL ZEOLITES MARKETING Apandi, Toni Toha
Jurnal Zeolit Indonesia Vol 1, No 1 (2002)
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Abstract

Natural zeolites have been known and studied in Indonesia since the 1980s. In 1986, a pilot processing plant for natural zeolites was built in Bayah, Lebak regency where some applied research was performed. This was with cooperation with the universities, research and development centres, technical institutions and others. By their cooperation, and informal recommendations relating to Indonesian zeolite deposits, the joint work has created a focus of applied research in a market segment which has the great possibility to be a captive market. It started from the fields of aquaculture of schrimp ponds, water treatment of drinking and sewage water, and agriculture. Beginning with the difficulty of getting a phosphate fertilizer, there is a booming of domestic natural zeolite demand in agriculture; even natural zeolites exports are also gradually increasing by means of international zeolites market growth and globalisation of information systems. Indonesia has great natural zeolites deposits and has attracted much attention from foreign entrepreneurs to invest in the zeolites business especially in the production of high quality zeolites. However, it is necessary to socialize and convince all of the potential association to join organizations in order to get more synergism between the members in chambers of commerce and industry (KADIN) as a facilitator, for example to facilitate a company association and a professional association such as Indonesian Zeolite Association (IZI) to coordinate their programme and planning.
STUDY ON ALUMINA-SILICA-PHOSPHATE COMPOUND AS PROBLEM WATER TREATMENT: CASE STUDY OF SOIL WATER (BEKASI AND KARAWANG) Fatimah, Dewi
Jurnal Zeolit Indonesia Vol 4, No 2 (2005)
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Abstract

Naturally, zeolite is a cation exchanger but this property is also depending on porosity, tetrahedral density and frame density. Cation exchange effectiveness can be changed by structure, Si/Al ratio and effective pore size. Tetrahedral group, T, in zeolite is negative charged and can be substituted isomorphycally by other group like PO2+. The new structure can be functioned as anion or cation exchanger. The exchange capacity of both ions depends on Si/Al/P ratio from the substitution process. The alumina-silica-phosphate (ASP) compound has been made from zeolite from Cikalong, Tasikmalaya, with ammonium dihydrogen phosphate (ADHP) with substitution rate between 30-40%. This product has been tested to Pantura groundwater, in Bekasi and Karawang areas, which have groundwater type of NaCl, CaCl2, MgSO4 and CaCl2/CaSO4. ASP tests on ground water samples show decreasing content of Ca, Mg, Na and K cations in ground water by 32.94%, 3.35%, 2.52% and 23.60% respectively. Sulphate anion also decreases by 15.39% but chloride anion shows no changes. Dig-up well of CaCl2 type also shows a reduction of Ca, Mg, Na and sulphate contents by 46.26%, 18.37%, 16.39% and 10.84%, respectively. Dig-up well of CaSO4 type shows Ca, K and sulphate contents decrease of 89.71%, 33.31% and 5.26%, respectively. CaSO4 dig-up well can be changed to Mg-mix type after processing by ASP compound. Cation exchange capacity of ASP compound to Ca is higher than to K, Mg and Na (Ca>K>Mg>Na). Due to a high cation exchange capacity to K and Mg, ASP compound may be used to reduce the hard water level.
PROSPECT OF ZEOLITE AS ABSORBENT MATERIALS FOR REMEDIATION OF ABANDONED MINE LAND Suwardi, Suwardi; Mulyanto, Budi
Jurnal Zeolit Indonesia Vol 5, No 2 (2006)
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Abstract

Nowdays, mining and energy are still as important sectors for contributing state economics. However, mining activitis usually make environmental problems because most of mining use open pit mining technique that causing the change for the landscape comprising topography, cover vegetation, hydrology pattern, and distruction of soils. In the consequence, the ecosystem of mining area and its surrounding will disturb. The disturbances will more clear if the overburden containing unstable minerals in oxidize condition (such as pyrite and chalcopyrite) release acid mine drained that disturbing biota growth. Zeolite is aluminosilicate mineral group having unique structure, high cation exchange capacity, porous, and adsorp of ammonium ion and water. With those properties, zeolite can be used as (a) absorp of undesirable elements or compounds such as heavy metals, (b) carrier of nutrients such as ammonium ions, and (c) increasing buffer capasity of soils. This paper will dicuss the prospect of zeolite as material for remediation of abandoned mine land.
HYDROLYSIS OF CLAY FROM CAPKALA WITH VARIATION OF CHLORIDE ACID CONCENTRATIONS Wahyuni, Nelly; S., Imelda H.; Arryanto, Yateman; Sutarno, Sutarno
Jurnal Zeolit Indonesia Vol 7, No 1 (2008)
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Abstract

Hydrolysis of clay from Capkala with variation of chloride acid concentratios has been done. Hydrolysis of clay has been conducted by reacting clay in HCl with stirring during 24 hours. Hydrolysis was conducted in several variations of HCl concentration at room temperature. Hydrolyzed clay was characterized by the Atomic Absorption Spectophotometer, Infrared Spectophotometer, and X-ray Diffractometer. The analysis of Spectophotometer of Atomic Absorption was not showed the decreasing of aluminum content of hydrolized clay which is not the extrication of aluminum metal from clay structure. Infrared spectra from hydrolized clay was not showed the eliminated of absorption peak for Al-OH bonds in octahedral layer. Diffractograms of hydrolized clay was not showed the changing angle of 2θ but figuring the increase of intensity of diffraction peak which indicates discharge of pollutant metals from clay structure.
TECHNIQUE OF ZEOLITE APPLICATION ON AGRICULTURAL AS A SOIL AMELIORANT Suwardi, Suwardi
Jurnal Zeolit Indonesia Vol 8, No 1 (2009)
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Abstract

Indonesia is one of countries which is rich in zeolite deposits. Volcanic activities in this country millions years ago released much of volcanic tuff as source of zeolite materials. The most important of zeolite characteristics are high cation exchange capacity (CEC), capability to absorb ammonium ions, and their unique porous structures. Those characteristics can be used for many utilities of zeolite for agriculture such as soil ameliorant, slow release agent of nitrogen fertilizer, and growth media of horticultural plants. Application of zeolite as soil ameliorant gave good effect if applied in low CEC soil such as Oxisol, Ultisol, and some Inceptisol with high dossage of 10-15 ton/ha. Although zeolites improved the soil characteristics and crop production, only a few farmers used zeolites due to economical reasons. Therefore, other techniques should be developed for stimulating farmers to use zeolites. Application of zeolite with lower dosage can be mixed directly with urea in ratio of 1:1 or 30% if the mixtures are pelletized. Zeolite can be applied in company with other soil ameliorants such as compost, liming, and humic acid.

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