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INDONESIA
Jurnal Zeolit Indonesia
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Articles 6 Documents
Search results for , issue "Vol. 1 No. 1 (2002)" : 6 Documents clear
Prospects of Natural Zeolites in Indonesia for Industrial Separations and Environmental Management Yateman Arryanto; Siti Amini; Max G. Q. Lu
Jurnal Zeolit Indonesia Vol. 1 No. 1 (2002)
Publisher : Jurnal Zeolit Indonesia

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Abstract

Zeolite as well as molecular sieves are a class of aluminosilicate materials, which have found wide use in industries for separation, purification and pollution control. In the new era of nanomaterials in the 21st century, these nanoporous materials have become more widely used in separation, catalysis and environmental management, even in microelectronic and energy storage sectors. The following briefly shows the great potential of natural zeolites for some important environmental applications: CO2 removal from landfill gas and coal seam gas using Pressure Swing Adsorption (PSA) with Clinoptilolites: Natural zeolite is not only a cheaper solution to the economical storage system of methane for NGVs but it also present a safer storage medium as alternative adsorbent such activated carbon is flammable and very costly. There is also an increasing interest in indoor air quality control issues among the building industries and health organizations. It has been demonstrated that clinoptilolite is particularly effective adsorbent for odours and some volatiles in indoor environment. Another area of importantnce of natural zeolites is the solar energy application. Zeolites can adsorb water vapour and create effective cooling with solar heat as the energy to regenerate the zeolite. Systems using zeolites can be designed in such a way that combined cooling and heating can be achieved at about 40-60% efficiency. Adsorption of Nitrogen and Oxygen in zeolites for PSA application Cp zeolite deposit has about 75% of the capacity of a commercial Mordenite zeolite for air separation at 30°C. The dynamics studies showed that Cp zeolite is suitable for N2 and O2 separation due to their large difference in adsorption kinetics.
PROSPECT OF ZEOLITE APPLICATION IN AGRICULTURE Suwardi Suwardi
Jurnal Zeolit Indonesia Vol. 1 No. 1 (2002)
Publisher : Jurnal Zeolit Indonesia

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Abstract

Although zeolites have been known since the 50's the application of zeolites in Indonesia started in the 80's after promotion by the Mineral Technology Research Centre. Before that period, zeolites were only used as construction materials for wall decoration. Zeolites became popular after publication of zeolite research into many aspects of possible applications. Applications of zeolites are based on their characteristics. Initially natural zeolites were used as fillers in the paper industry, ion exchangers in water treatment, separation of nitrogen and oxygen, sorbents in drying, and construction materials. At the same time, applications of zeolites were developed as feed additives for animals and for water treatment in shrimp ponds. In some countries, zeolites have been used as industrial materials, improvement of agricultural production, and environmental protection. In agriculture, applications of zeolites can be used directly to soils as materials for growth media, mixed with manures during decomposition process, and for mixing with urea as slow release agent. The number of zeolite factories in Indonesia is still low and they produce zeolites in powder and grain forms. In recent years, some zeolite factories have been built to produce zeolites for material of industry, agriculture and environmental protection. The most important effort for zeolite factories is how to produce high quality of zeolite. The prospect of zeolite applications in agriculture is very good as (1) soil amelioration for low cation exchange capacity of soils, (2) material for mixing with fertilizer, (3) material as growth media for horticulture and seedling plantation plants, (4) material for improvement of compost quality, (5) material for water treatment of fish ponds, (6) food additives for animals.
STANDARDIZATION OF ZEOLITE MINERAL FOR QUALITY CONTROL Astiana Sastiono
Jurnal Zeolit Indonesia Vol. 1 No. 1 (2002)
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Abstract

Zeolite minerals in the past 20 years have been used n many aspect of agriculture, industry and environmental protection. Application of zeolites commercially depends on one or more of their physical and chemical characteristics. Natural zeolites are obtained as tuff rocks together with other minerals with the variation in their composition. Separation of the mineral is very difficult with any chemical process. In order to guarantee the quality of natural zeolites as a commercial product, we need to establish national standard of zeolites. Properties of zeolite such as particle size, mineral compositions, chemical properties and other properties need to be standardized.
NATURAL ZEOLITES STANDARDIZATION AS THE COMMODITY TOWARDS QUALITY ASSURANCE FOR ITS INDUSTRIAL USAGES Muta’alim Muta’alim
Jurnal Zeolit Indonesia Vol. 1 No. 1 (2002)
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Abstract

The quality of zeolite deposits at some locations are not the same, whereas in its utilizations, such as the utilization for the fertilizer carriers, the standard quality of zeolite should be fulfilled, for instances the cation exchange capacity should have a minimum value of 120 meq/100 gram, particle size should be "“10, +48 mesh, the zeolite grade was 50% of the tuff, and the moisture content was 8% in which its referred to the SNI 13-4696-1998, and that for the fowl and cattle food additives, the standard quality of the cation exchange capacity should be minimum value of 160meq/100gram, the particle size of "“28,+100 mesh, the zeolite grade 50%, and the moisture content of 5% which is related to SNI 13-4897-1998. Nowadays, there is not all zeolites for the industry utilizations have the standard yet, whereas the each of zeolite used should reach the quality standards. The process to attain the technical specification properties of the standard quality used for the commodity is called standardization. Standardization aspects include the procedures, the technology used, the environmental aspects, and the examinations used to be accurate and accredited. Based on the standard of the technical specifications, zeolites used will then be as commodities with assured qualities.
APPLICATION OF ZEOLITE IN INDUSTRIES AND ENVIRONMENTS Thamzil Las; Husen Zamroni
Jurnal Zeolit Indonesia Vol. 1 No. 1 (2002)
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Abstract

Zeolites are crystalline, hydrates of alumino-silicate mineral with a three-dimensional framework structure which are occured in Indonesia as large deposits in the form of near-pure minerals and of low cost. In recent years, many scientist have focused their research to develop these minerals to be used in science and technology applications. Because of their unique crystal structure, zeolites have the importance properties of sorption, ion-exchange, molecular sieving and catalysis, which enable to them to be used in various industrial processes, waste management and environmental pollution problems. This paper describes the prospect of clinoptilolite and mordenite, which have been investigated in many laboratories, to be considered for their utilization in the industries and environmental management.
INDONESIAN NATURAL ZEOLITES MARKETING Toni Toha Apandi
Jurnal Zeolit Indonesia Vol. 1 No. 1 (2002)
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Abstract

Natural zeolites have been known and studied in Indonesia since the 1980's. 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.

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