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INDONESIA
Jurnal Zeolit Indonesia
Published by Institut Teknologi Bandung
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
Arjuna Subject : -
Articles 202 Documents
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EFFECT OF ZEOLITE ADDITION TO PLANT GROWTH MEDIA ON CANTALOUPE AND WATERMELON PLANTS IN HYDROPONIC SYSTEM Pangestu, M. Bagus; Suwardi, Suwardi; Widiatmaka, Widiatmaka
Jurnal Zeolit Indonesia Vol 3, No 1 (2004)
Publisher : Jurnal Zeolit Indonesia

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Abstract

The objectives of this research are to evaluate the effect of zeolite addition on watermelon and cantaloupe production and growing. The research carried out in green house of Bogor Agricultural University and the plant growth media (PGM) analysis carried out at Department of Soil Science, Faculty of Agriculture, Bogor Agricultural University. Single factor completely randomize design was used with four treatments and five repetitions. Plant growth media composition treatments effect the physical and chemical properties of PGM. The bulk density of PGM increase from from 0.22 to 0.56 g/cm3 and water holding capacity drop from 326.58 to 85.38 along with zeolite percentages added. The effects of zeolite on chemical characteristic of PGM is decreasing electrical conductivity rate before planting. PGM composition treatment did not positively effects on watermelon and cantaloupe growth, however there is an increasing on main stalk length and leaf quantity on cantaloupe. For watermelon, the increasing of growth parameter happened on 10% zeolite percentage. For fruit quality, PGM treatment positively effects on organoleptic test result 10% of zeolite giving the best result on the increasing of the average value of production and growth parameter.
INCREASING THE Si/Al RATIO OF NATURAL ZEOLITE MORDENITE AS BASIC MATERIAL OF CATALYST Handhoyo, Roocyta; Prijatama, Herry; Sofiyah, Siti; Nurlela, Iis; Yusianita, Nita; Amelia, R.; Komala, Ratna
Jurnal Zeolit Indonesia Vol 4, No 1 (2005)
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Abstract

One of the application of zeolite as a multi-function mineral is the use as catalyst. Investigation to utilize Indonesian natural zeolite as a catalyst will increase the added value and gives a chance to reduce the dependency of imported catalyst. One of the main property, which allow zeolite to be used as a catalyst, is a high silica-alumina ratio, where Si/Al >10. As a preminalry stage to form a catalyst zeolite, research has been carried out to increase the Si/Al ratio of natural mordenite from Cikalong, Tasikmalaya. The method applied is dealumination process, which is followed by calcinations and ion exchange. This process is expected to modify the Na-zeolite from natural mordenit to be a NH4-zeolite which can be transformed to a catalyst zeolite. Dealumination process is carried out using HNO3, with variable concentration and time at temperature of 85°C. Thereafter, zeolite is calcined at 700°C and is followed ion exchange process using NH4NO3. The current stage of research has been succeeded to increase the Si/Al ratio of natural mordenite from Si/Al @ 5 to Si/Al > 10. The process condition applied is dealumination with 8N HNO3 for 24 hours at 85°°C and is followed by calcinations at 700°C for 2 hours. Ion exchange is proceeded with 5% NH4NO3 for 2 hours and is followed by another calcinations at 400°C for 2 hours.
EFFECT OF ZEOLITE AND CHICKEN MANURE ON NUTRIENT RESIDUE IN THE SOIL Estiaty, Lenny M.; Suwardi, Suwardi; Maruya, Ika; Fatimah, Dewi
Jurnal Zeolit Indonesia Vol 5, No 1 (2006)
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Abstract

Fertilizer is one of nutrient sources that very important for increasing agricultural production besides improvement of soil properties by application of soil amendments such as zeolites and compost. Addition of zeolites increase the cation exchange capacity (CEC) and fertilizer effeciency while compost used as source organic matter and nutrients in the soil. Estiaty (2005) showed that application of 20 ton/ha zeolite and chicken manure compost 10 ton/ha with basal fertilizers of N, P, K 200 kg/ha respectively is the best dosage for Ipomoea reptans. From the second period showed that there was higher nutrient residue in the soil applied by zeolite and chicken manure compost. These facts were shown from better plant growth and production in the soil applied by zeolite in the second period. The objective of this experiment is to calculate the residue of nutrients from the application of zeolite and chicken manure in the first planting before. The experiment was conducted by application of N, P, and K fertilizers in different rates in the soils after using first planting with zeolite and chicken manure. Ipomoea reptans was used as indicator plant. Experiment was conducted in two stages; first planting such as Estiaty (2005) treatments following by second planting with N, P, K in different dosages. This experiment was conducted in green house of Cikabayan, IPB Darmaga Campus while soil and plant analysis was conducted in the laboratory of Department of Soil Science and Land Management. The result showed that zeolite and chicken manure increase the efficiency of N, P, K fertilizers in the second planting. In the second planting of Ipomoea reptans, the need of N, P, K fertilizers were only half of the first planting with the production of nearly the same. Application of zeolite and chicken manure was not only increase the efficiency of N but also increase the available of P and K in the soil.
THE DYNAMICS MOLECULER OF WATER MOLECULE ABSORPTION IN SILICATE ZEOLITE Syarif, Nirwan
Jurnal Zeolit Indonesia Vol 6, No 2 (2007)
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Abstract

The water molecule dynamics absorbed at silicalite zeolite was studied with molecule dynamics technique using the computer. This paper reports the effect of temperature on behavior of dynamic system. The result showed the improvement of diffusion coefficient and diffusion activation energy along with the improvement of temperature. Improvement of temperature cause the change of the contact distance of the water molecule in zeolite molecule.
THE DESULFURIZATION OF DIESEL FUEL USING NATURAL ZEOLITE ADSORBENT Lusia, Anda
Jurnal Zeolit Indonesia Vol 8, No 1 (2009)
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Abstract

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.
INFLUENCE OF CONSISTENCY AND ACTIVATOR LIQUID ON ACTIVATION PROCESS OF NATURAL ZEOLITE BY HYDROTHERMAL FOR HARDNESS WATER PROCESSING IN FIXED COLUMN Rahayu, Endang S.; Damilsun, Adu; Aditia, Krisna
Jurnal Zeolit Indonesia Vol 9, No 1 (2010)
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Abstract

Zeolite can function as cation exchanger or adsorbent for elimination pollutan in water. In general, natural zeolite have a low capability to eliminate a hard subtances in water. The study aimed to increase elimination capacity hardness by activated natural zeolite and study the effect of activation processes. This study was conducted to natural zeolite Cikalong-Tasikmalaya with a hydrothermal process at temperature 100 0 C with variations of consistency reaction system, concentration and activator liquid type. Activation natural zeolite was done with variations of consistency of 12,5%; 25%; 37,5%; and 50%, activator liquid concentrate of 2N NaOH and 1N NaOH, and activator liquid types of NaOH and NaCl. The result of process is a active zeolite to the test of implementation a hard water processing in fixed column with depth of zeolites 90 cm, it was operated continously with a linier speed of 2 m/hours, total hardness and hardness of Ca2+ as a parameters test with reference to SNI 06-4161-1996 and SNI 06-2429-1991, variations of standard water concentration between 240 to 440 mg/l as CaCO3. Natural zeolites gave a lower percent between 11% to 42% from variations of standard water concentration which is given, while the zeolite active between 56% to 96%. The effect consistency of activator process is shown in the lowest elimination values of zeolite. The produce of activation process with consistency of 50% and higest value for consistency of 12,5%. Consistency of 12,5 % was used as consistency reference for other variation processes. The effect of activator liquid concentrate NaOH is not siginificant, indicated by narrows range between 2N NaOH and 1N NaOH is 78% to 92%. Activator liquid type NaCl gives a higher hardness percent 96% at standard water with high of hardness.
SIMULATION OF X-RAY DIFFRACTION PATTERN OF A VARIOUS KINDS OF NATURAL ZEOLITE CRYSTAL USING RIETAN PROGRAM Suminta, Supandi
Jurnal Zeolit Indonesia Vol 2, No 1 (2003)
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Abstract

The simulation analysis of natural zeolite crystal structure have been carried out using RIETAN program. The simulation results provide diffraction pattern of some crystal structure data representing as zeolite materials. There are two sets of input data : First Global parameter : a. parameter to correct the zero-point shift of the diffraction pattern : zero-point error,Z, b. parameter to calculate the background : background parameters. Second : Phase-dependent parameters : a. parameter to adjust integrated intensities :scale factor,S, b. prefered orientation parameters, c. profile parameters :FWHM parameters,d parameters to determine peak position : lattice parameters and e.crystal structure parameters: fractional coordinates. The output data contain some information such as:profile diffraction pattern, R factor, final adjusted parameters and their estimated standard deviations, lattice parameters and unit cell volume, structure parameters, number and weight of each species in the unit cell and density,and summary of reflection such as : hkl, 2 theta, d, observation intensity, calculated intensities and structure factors. These output data provide diffraction patterns for some zeolite phases, i.e. : clinoptilolite, heulandite, mordenite, analcime, phillipsite, chabazite and erionite. Results show that was significant and the application can be used for all kind of zeolites and other crystal materials in general applications. The program can be applied easily and the resulting patterns represent all phases significandly. RIETAN simulation program is expected to help hope that helpful suggestion for all people who are identification and characterisation of zeolites qualitatively.
ALOE VERA GROWTH WITH ZEOLITE AND ORGANIC MATTER APPLICATION Bakrie, Azlina Heryati
Jurnal Zeolit Indonesia Vol 3, No 2 (2004)
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Abstract

The objective of this study was to evaluate the crop growth of aloe vera by zeolite and organic matters application. This study was conducted in Natar, Lampung Selatan. Treatments were arranged by factorial (5x3) in Randomized Complete Block Design with three replications. First factor were five dosage of zeolit as 0; 75; 150; 225; and 300 kg ha-1. Second factor were three different type of organic matters as: without organic matter, chiken manure, and cow manure. The result showed that zeolite application produced maximum responses for the plant height, petiole leaf fresh weight, thickness of petiole leaf, and root dry weight. Organic matters application could increase plant height, thickness of petiole leaf, petiole leaf fresh weight, and root dry weight. The best responses could produce by chicken manure application. The application of zeolite affected by organic matters on length of leaf and fresh weight of petiole leaf.
DECREASING THE HARDNESS Ca, Mg AND HEAVY METALS Fe, Mn, Zn IN RAW WATER WITH ZEOLITE FROM CIKALONG, TASIKMALAYA Husaini, Husaini; Soenara, Trisna
Jurnal Zeolit Indonesia Vol 5, No 1 (2006)
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Abstract

The decrease of hardness (Ca, Mg) and heavy metal (Fe, Mn, Zn) contents in raw water was conducted by flowing the sample water through the activated zeolite bed column. Treated water obtained from the experiment obviously met the parameter in standard requirement of drinking water. Activated natural zeolite from Cikalong, Tasikmalaya is able to decrease the content of Ca, Mg, Fe, and Mn in the sample water through the cation exchange process by percolation method with the optimum flow rate of 5 volume bed/hour on the zeolite with the particle size of -10+18 mesh especially for decreasing the hardness (Ca and Mg content). On the other hand, optimum condition for decreasing Fe and Mn contents are reached on the zeolite with the particle size of -10+18 mesh and water flow rate of 10 volume bed/hour. The final treated water contained 0,08 ppm Mn and 0,024 ppm Zn, meanwhile the hardness and other cations have been reduced below the required limit value (0,30 ppm for Fe, 0,10 ppm for Mn, and 0,05 ppm for Zn).
DESALINATION OF THE BRACKISH WATER USING SURFACTANT MODIFIED ZEOLITE (SMZ) Astuti, Widi; Jamali, Adil; Amin, Muhammad
Jurnal Zeolit Indonesia Vol 6, No 1 (2007)
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Abstract

The intrusion of seawater in the beach area of Bandar Lampung and the Eastern beach of Lampung causes many problems for people because it turns the water into a brackish water. The brackish water is the water whose salinity is between 0.5 ppt until 17 ppt. The brackish water cannot be used for drinking, cooking or washing because the maximum degree of salinity for such purposes is 0.5 ppt. Desalination of brackish water is a process of reducing the salinity of a brackish water. In this research, natural zeolite from Lampung was modified with surfactant to become surfactant-modified zeolite (SMZ). It was used as ion exchanger in the desalination of a brackish water. The result showed the salinity of the brackish water could be reduced to 52% from the initial value. The best results were obtained at the contact time of 4 hours and the initial salinity 0.863 ppt.

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