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All Journal Jurnal Ilmu Pertanian Jurnal Zeolit Indonesia Jurnal Pertanian Terpadu Jurnal Perikanan Universitas Gadjah Mada jurnal Ilmu Pertanian (Agricultural Science) Aquacultura Indonesiana

Bambang Triyatmo

Department Of Fisheries, Faculty Of Agriculture, Universitas Gadjah Mada.

Author-ID : 406200

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Immunology & microbiology

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Articles

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Synthesis of Artificial Zeolite from Coal Fly Ash by Alkali Treatments Triyatmo, Bambang
Jurnal Zeolit Indonesia Vol 3, No 1 (2004)
Publisher : Jurnal Zeolit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Coal fly ash was treated with alkali (NaOH) water solution by heating up to about 100 oC for 12 and 24 hours. The coal fly ash used in this experiment was obtained from PLTU (Steam Power Electric Station) Suralaya, West Java, Indonesia. It was passed through a wire sieve with filter size of 46 mm. The NaOH solutions were reacted 0.5, 1.0, 1.5, 2.5, 3.5 and 4.5 M. The final products of the reactions were designated as âartificial zeolitesâ. Result of this experiment indicated that the cation exchange capacity (CEC) of âartificial zeolitesâ were increased by increasing NaOH concentration up to 2,5 M. Higher CEC value of the 24 hours treated coal fly ash than that of the 12 hour treated ones. The CEC of âartificial zeolitesâ increased by about 50 time for the coal fly ash. The XRD (X-ray Diffraction) pattern of the coal fly ash treated by 2,5 M NaOH which had highest CEC value were present new crystalline matters (possibility phillipsite) with sharp diffraction peaks at 2.7, 3.2, 3.3, 4.1, 5.1, 7.1 Ã. The infrared (IR) spectrum of the âartificial zeoliteâ exhibited the broad absorption band around 1,000 cm-1 and at about 3,500 cm-1. The analyzed âartificial zeoliteâ showed steep descent around 100 oC in TG (Thermogravity), a small endothermic peak below 100 oC and a deep endothermic peak from 130 oC in DTA (Differential Thermal Analysis), representing presence of micropore structure of new zeolite species (probability phillipsite). The scanning electron micrograph of the âartificial zeoliteâ showed spherical structure with chinks formed in the 2,5 M NaOH treatment.

Improvement of Cation Exchange Capacity of Natural Zeolite with Alkali Treatments Hanudin, Eko; Triyatmo, Bambang
Jurnal Zeolit Indonesia Vol 3, No 1 (2004)
Publisher : Jurnal Zeolit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (51.514 KB)

The natural zeolite was treated with alkali (NaOH) solution and heating at 100 oC for 12 and 24 hours. The natural zeolite was collected from Gunungkidul, Jogjakarta, Indonesia. The series of NaOH solutions was 0.5, 1.0, 1.5, 2.5, 3.5 and 4.5 M. The final product of the reaction (precipitate) was designated as âactivated natural zeolite (ANZ)â. The cation exchange capacity (CEC) of the ANZ increased with increasing NaOH concentration up to 1.5-3.5 M. Treatment with NaOH 3.5 M and 12 hours in period of hydrothermal reaction resulted in a maximum CEC (395.6 cmol.kg-1). The maximum CEC also observed for treatment with NaOH 1,5 M, but consumed a longer time (24 hours). The increase in the CEC of the ANZ about 300 % higher than the original one. The XRD (X-ray Diffraction) peaks of the ANZ appear at 2.7, 3.2, 4.1, 5.1, 7.2 Ã, this indicated a new crystalline matters (possibility phillipsite) present. Electron micrograph showed that the ANZ has a large cubic/prismatic structure with a perfect form.

Feasibility Study on the Profitability of Vannamei Shrimp Aquaculture on Coastal Area of Keburuhan Village, Purworejo Regency Djumanto, Djumanto; Ustadi, Ustadi; Rustadi, Rustadi; Triyatmo, Bambang
Aquacultura Indonesiana Vol 17, No 1 (2016)
Publisher : Indonesian Aquaculture Society (MAI)

Brackish water vannamei shrimp aquaculture in Keburuhan village of Purworejo Regency is one of the shrimp aquaculture activities developed since 2010. Shrimp aquaculture enteprises were done by local communities which use sandy land coated by plastic sheet with an area of 1000-4500 m2. Some farmers suffered losses due to lack of technical knowledge in shrimp aquaculture, environmental carrying capacity, ecological and economic feasibility. The aim of this study was to determine the general condition of vannamei shrimp aquaculture and shrimp farming feasibility. The study was conducted by field surveys, interviews and questionnaires to 30 farmers. The survey was conducted in May-June 2016 by purposive sampling of farmers who were members of a joint venture group of Minamulyo. The results showed shrimp pond size aquaculture area was varied, with a range of 1000-1500 m2, 1500-2000 m2, 2000-3000 m2 and 3000-4500 m2. An average fixed cost required for construction and operation of shrimp pond aquaculture was approximately IDR 6,620,934 to 12,606,666 million/plot/cycle shrimp production, while the variable costs of each cycle production ranged from IDR 45,876,733 to 78,861,666. The revenue and net profit varied according to pond size. The net gain for the smallest pond (1000-1500 m2) was IDR 48,702,332/plot/cycle, and the largest pond (3000-4500 m2) was IDR 58,131,666/plot/cycle. The shrimp farmers could recover the original investment incurred within a period of 4-6 months (one half cycles). Vannamei shrimp aquaculture in Keburuhan village of Purworejo regency brings a variety positive and negative impacts to the development of the economic, social and environment. Positive impact included increase of income and welfare of farmers, while the negative impact was a decline in the quality of the pond environment.

Technical and Financial Aspects of White Shrimp (Litopenaeus vannamei) Culture in Coastal Sandy Soil Area of Bantul Regency Triyatmo, Bambang; Suadi, Suadi; Ambarwati, Dian; Sukardi, Sukardi
Aquacultura Indonesiana Vol 17, No 2 (2016)
Publisher : Indonesian Aquaculture Society (MAI)

This research has been conducted to know the technical and financial aspects of white shrimp (Litopenaeus vannamei) culture in Bantul District coastal sandy soil area. The samples of farmers were determined by stratified sampling method based on the ponds width. The data were colected by observation and interviews methods. The samples in the study were 41 farmers as respondents/ponds from the population of 290 ponds. Samples were consisted of three categories : 1,000 m2 per pond for 16 farmers: 1,000-1,500 m2 per ponds for 14 farmers and >1,500 – 2,500 m2 per pond for 11 farmers. The results showed that the white shrimp culture in Bantul District coastal sandy soil area was an intensive system with average pond width 1,300 m2. Average pond category < 1,000 m2 was 636 m2; average pond category 1,000-1,500 m2 was 1,357 m2 and average pond category >1,500 – 2,500 m2 was 2.191 m2. Generally the fixed costs incurred IDR 24,876,128,- per pond/cycle and variable costs IDR 72,839,121 per pond/cycle (IDR 218,517,362,- per pond/year). The revenue of the culture was IDR 109,709,805,- per pond/year, with the ratio value between the total revenue with total costs [Revenue (R) / Cost (C) ratio ] was 1.37. The Break Event Point (BEP) of shrimp products was 4,909 kg and the Break Event Point (BEP) of shrimp price was IDR 34,312,-. The highest productivity of shrimp was 19.7 Ton/ha/cycle, which be cultured in the 1,000-1,500 m2 ponds, with incomed IDR 169,507,143 per pond/cycle and the Revenue/Cost ratio (R/C ratio) was 1.60. The BEP of shrimp products was 5,069 Kg and the BEP of shrimp price was IDR 28,187,-

Utilization of Wastewater from Vannamei Shrimp Pond for Rearing Milkfish in Keburuhan Coast Purworejo Sub-District Djumanto, Djumanto; Ustadi, Ustadi; Rustadi, Rustadi; Triyatmo, Bambang
Aquacultura Indonesiana Vol 19, No 1 (2018)
Publisher : Indonesian Aquaculture Society (MAI)

Brackish water vannamei shrimp in the village of Keburuhan, Ngombol District of Purworejo Regency is one of the shrimp aquaculture activities developed since 2010. Shrimp farming enteprises is done by local communities which use the sandy soil coated plastic sheet with an area of 1000-4500 m2. There is a positive impact by increasing the income and welfare of farmers, but give negative effects in decline of surrounding pond environment. The shrimp farmers mostly disposed of wastewater directly into the sewers or the surrounding area. The wastewater of vannamei shrimp culture contains of uneaten feed and plankton that can be utilized to grow milkfish. The aim of this study was to determine the growth and feeding preferences for milkfish culture in wastewater reservoir of vannamei culture. The study was conducted from January to April 2017 by rearing of milkfish in earthen ponds of shrimp culture in wastewater reservoir. Wastes consist of feces and uneaten feed during shrimp rearing were siphoned and flowed into ponds wastewater reservoir. Milkfish juvenile with body length ranges from 9.3 to 9.7 cm and weight ranges from 3.4 to 6.9 g was introduced into three earthen ponds of 600 m2 each, with density of 6 individual/m2 in triplicate for 70 days. During the study, milkfish juvenile were not fed, but obtained wastewater from shrimp culture ponds. The wastewater from the shrimp ponds was siphoned and piped into a waste reservoir ponds every 3 days until shrimp harvesting. Fish samples of each pond as much as 40 individuals were taken biweekly and then measured the length and weight. Fish stomach was dissected and then digestive tract was taken to observe the species of plankton consumed. The results showed that milkfish could grow well in wastewater reservoir of shrimp culture. The average daily growth rate of length and weight of milkfish reached approximately 0.11 cm/day and 0.34 g/day, respectively. The length weight relationship of milkfish showed allometric growth pattern. The food type found in the intestinal was dominated by phytoplankton. Feed was dominated by genera of phytoplankton, which reach more than 99%. The most dominant of phytoplankton were Scenedesmus sp. (34.7%), then Crucigenia sp. (20.1%), followed by Cyclotella sp. (14.6%), and Clamydomonas sp. (7.5%) next Microcystis sp. (6.7%), while the other genera less than 4.2%. Further research is needed to determine the optimum density of milkfish to utilize wastewater of shrimp culture.

Pemanfaatan Air Budidaya Lele Dumbo dengan Perlakuan Penggantian Air Berbeda Untuk Budidaya Tanaman Sawi Iwan Yusuf Bambang Lelana; Bambang Triyatmo; Mulyono Nitisapto
Jurnal Ilmu Pertanian Vol 6, No 2 (1998): September
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.59992

Synthesis of Artificial Zeolite from Coal Fly Ash by Alkali Treatments Bambang Triyatmo
Jurnal Zeolit Indonesia Vol. 3 No. 1 (2004)
Publisher : Jurnal Zeolit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Coal fly ash was treated with alkali (NaOH) water solution by heating up to about 100 oC for 12 and 24 hours. The coal fly ash used in this experiment was obtained from PLTU (Steam Power Electric Station) Suralaya, West Java, Indonesia. It was passed through a wire sieve with filter size of 46 mm. The NaOH solutions were reacted 0.5, 1.0, 1.5, 2.5, 3.5 and 4.5 M. The final products of the reactions were designated as 'artificial zeolites'. Result of this experiment indicated that the cation exchange capacity (CEC) of 'artificial zeolites' were increased by increasing NaOH concentration up to 2,5 M. Higher CEC value of the 24 hours treated coal fly ash than that of the 12 hour treated ones. The CEC of 'artificial zeolites' increased by about 50 time for the coal fly ash. The XRD (X-ray Diffraction) pattern of the coal fly ash treated by 2,5 M NaOH which had highest CEC value were present new crystalline matters (possibility phillipsite) with sharp diffraction peaks at 2.7, 3.2, 3.3, 4.1, 5.1, 7.1 Ã…. The infrared (IR) spectrum of the 'artificial zeolite' exhibited the broad absorption band around 1,000 cm-1 and at about 3,500 cm-1. The analyzed 'artificial zeolite' showed steep descent around 100 oC in TG (Thermogravity), a small endothermic peak below 100 oC and a deep endothermic peak from 130 oC in DTA (Differential Thermal Analysis), representing presence of micropore structure of new zeolite species (probability phillipsite). The scanning electron micrograph of the 'artificial zeolite' showed spherical structure with chinks formed in the 2,5 M NaOH treatment.

Improvement of Cation Exchange Capacity of Natural Zeolite with Alkali Treatments Eko Hanudin; Bambang Triyatmo
Jurnal Zeolit Indonesia Vol. 3 No. 1 (2004)
Publisher : Jurnal Zeolit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

The natural zeolite was treated with alkali (NaOH) solution and heating at 100 oC for 12 and 24 hours. The natural zeolite was collected from Gunungkidul, Jogjakarta, Indonesia. The series of NaOH solutions was 0.5, 1.0, 1.5, 2.5, 3.5 and 4.5 M. The final product of the reaction (precipitate) was designated as 'activated natural zeolite (ANZ)'. The cation exchange capacity (CEC) of the ANZ increased with increasing NaOH concentration up to 1.5-3.5 M. Treatment with NaOH 3.5 M and 12 hours in period of hydrothermal reaction resulted in a maximum CEC (395.6 cmol.kg-1). The maximum CEC also observed for treatment with NaOH 1,5 M, but consumed a longer time (24 hours). The increase in the CEC of the ANZ about 300 % higher than the original one. The XRD (X-ray Diffraction) peaks of the ANZ appear at 2.7, 3.2, 4.1, 5.1, 7.2 Ã…, this indicated a new crystalline matters (possibility phillipsite) present. Electron micrograph showed that the ANZ has a large cubic/prismatic structure with a perfect form.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.59992

PENGARUH KONSENTRASI KAPUR (CaCO3) TERHADAP PERTUMBUHAN LOBSTER AIR TAWAR (Cherax quadricarinatus) Arki Y. Arsono; Rustadi Rustadi; Bambang Triyatmo
Jurnal Perikanan Universitas Gadjah Mada Vol 12, No 1 (2010)
Publisher : Universitas Gadjah Mada

This research was conducted to determine the effect of lime (CaCO3) concentration on the availability of calcium in water and growth of Crayﬁsh (Cherax quadricarinatus). Completely random design was used in the experiment that consisted of 4 treatments and 3 replications. Four treatments of lime concentration were 0, 50, 100, and 150 mg CaCO3/l. The research was conducted in Fisheries Research Station, Agriculture Faculty, Gadjah Mada University for 30 days. Ten Crayﬁsh were reared in 60 cm x 40 cm x 50 cm aquarium in 60 l water. Crayﬁsh were fed ad libitum with Tubifex tubifex. Calcium concentration on water, Crayﬁsh growth, and water quality were observed every tenth days. The data of calcium concentration on water and Crayﬁsh growth were analyzed with regression and correlation analysis at 95% conﬁ dence level, whereas water quality analyzed descriptively. The research showed that there was correlation between lime concentration and its availability in the water. It showed that, more lime concentration resulted on higher calcium availability in water. Crayﬁsh growth was relative faster on higher lime concentration.

Co-Authors ALIM ISNANSETYO Alim Isnansetyo Arki Y. Arsono Bostang Radjagukguk Deendarlianto Dian Ambarwati Djumanto Djumanto Eko Hanudin Eny Heriyati, Eny Hery Saksono Hery Saksono Ign. Hardaningsih INDAH ISTIQOMAH Iwan Yusuf Bambang Lelana Iwan Yusuf Bambang Lelana Lucky Restyan Nugroho Muhotimah Muhotimah Mulyono Nitisapto Murwantoko . Namastra Probosunu Rustadi Rustadi Shima Bhaskara Ayuningrum Suadi Suadi Suadi Suadi Sukardi Sukardi Sukardi Sukardi Susilo B. Priyono Toni Kuswoyo Toni Kuswoyo Ustadi Ustadi Wiratni Budhijanto Yuliana S. Rahayu

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