Vol. 7 No. 1 (2008)

The study aimed to utilizing coal bottom-ash into zeolite A that was used as absorber metal ion of Cu(II). Zeolite A is made from bottom-ash using alkali fusion followed by hydrothermal processes. Melting temperature of Alkali conducted at 750°C during 12 h ours and hydrothermal processes at 100°C with molar ratio of SiO2/Al2O3 1,9. The result XRD showed that zeolite was formed is zeolite A. Product of Zeolite A was examined the ability of adsorption metal ions of Cu (II). In this test conducted several parameter variations that influences are period, concentration, pH, and temperature. The…

Standard Y zeolite has been prepared from sodium aluminate as an alumina source and Cab-O-Sil or sodium silicate as a silicate source. This study in particular aimed to obtain a reliable procedure to produce Y zeolite with Si/Al ratio ≥5. The resulted zeolite was then converted into Ultra Stable Y Zeolite (USY) through hydrothermal dealumination at high temperature. The study managed to procure a formulae and procedure to produce a zeolite Y which has SiO2/Al2O3 > 5 and a very stable USY. The procedure succeeded in obtaining synthesized USY that is ready to use as an active phase of…

Improving the quality of soils degradation can be achieved using the soil ameloirant (i. e. Zeolite, manure, compost, etc.), conservation farming systems, organic management, system balanced fertilization specific location, and efficiency of water use. This study aimed to determine: (1) the type of soil ameloirant that is still used by farmers, sources of information, and its use of doses, (2) constraints and benefit of use, (3) fertilizer efficiency, and (4) development opportunities. This study conducted by survey method that is structured interview included: farmer characteristics,…

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.…

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,…

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:…

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…

The study aimed to utilizing coal bottom-ash into zeolite A that was used as absorber metal ion of Cu(II). Zeolite A is made from bottom-ash using alkali fusion followed by hydrothermal processes. Melting temperature of Alkali conducted at 750°C during 12 h ours and hydrothermal processes at 100°C with molar ratio of SiO2/Al2O3 1,9. The result XRD showed that zeolite was formed is zeolite A. Product of Zeolite A was examined the ability of adsorption metal ions of Cu (II). In this test conducted several parameter variations that influences are period, concentration, pH, and temperature. The…

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.…

Improving the quality of soils degradation can be achieved using the soil ameloirant (i. e. Zeolite, manure, compost, etc.), conservation farming systems, organic management, system balanced fertilization specific location, and efficiency of water use. This study aimed to determine: (1) the type of soil ameloirant that is still used by farmers, sources of information, and its use of doses, (2) constraints and benefit of use, (3) fertilizer efficiency, and (4) development opportunities. This study conducted by survey method that is structured interview included: farmer characteristics,…

Standard Y zeolite has been prepared from sodium aluminate as an alumina source and Cab-O-Sil or sodium silicate as a silicate source. This study in particular aimed to obtain a reliable procedure to produce Y zeolite with Si/Al ratio ≥5. The resulted zeolite was then converted into Ultra Stable Y Zeolite (USY) through hydrothermal dealumination at high temperature. The study managed to procure a formulae and procedure to produce a zeolite Y which has SiO2/Al2O3 > 5 and a very stable USY. The procedure succeeded in obtaining synthesized USY that is ready to use as an active phase of…

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,…

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:…

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…