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INDONESIA
Jurnal Rekayasa Lingkungan
Published by Badan Pengkajian dan Penerapan Teknologi
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 10 Documents
 1 
Search results for , issue "Vol. 7 No. 2: Jurnal Rekayasa Lingkungan" : 10 Documents clear
EXERGY ANALYSIS OF GEOTHERMAL POWER PLANT KAMOJANG 68, 3 MW IN CAPACITY Amiral Aziz
Jurnal Rekayasa Lingkungan Vol. 7 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v7i2.1948

Abstract

The importance of exergy analysis in preliminary design of geothermal power has been proven. An exergy analysis was carried out and the locations and quantities of exergy losses, wastes and destructions in the different processes of the plan were pinpointed. The obtained results show that the total exergy available from production wells KMJ 68 was calculated to be 6967.55 kW. The total exergy received from wells which is connected during the analysis and enter into the separator was found to be 6337.91 kW in which 5808.8 kW is contained in the steam phase. The overall exergy efficiency for the power plant is 43.06% and the overall energy efficiency is 13.05 %, in both cases with respect to the exergy from the connected wells. The parts of the system with largest exergy destruction are the condenser, the turbine, and the disposed waste brinekeywords: exergy, irreversibility, geothermal power plant, KMJ 68
STUDY ON PROPAGATION AND GROWTH OF ARROWROOT (Maranta arundinaceae L.) AVAILABILITY IN A DIFFERENT LIGHT CONDITION Albert H. Wawo., dkk
Jurnal Rekayasa Lingkungan Vol. 7 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v7i2.1949

Abstract

Study on propagation and growth of arrowroot (Maranta arundinaceae L.) on different availability light condition. Arrowroot is a rhizome herbaceous plant that has potential as carbohydrate resources. The aims of this research are to use rhizome efficiently as material propagation on different availability light condition in order to get the best plant growth and arrowroot production. The research included 2 factors, which were internodes number of rhizome and shading, consisted of 6 combined treatments as factorial with Randomized Complete Design and three repetitions. The result of this research shown that by using 3 internodes of rhizome is the best material for propagation and produced the highest rhizome. The height of arrowroot was higher under shading than without shading. Arrowroot plants without any shading produced the highest fresh weight of rhizome compared to with 30% shading in Bogor condition.keywords: arrowroot, propagation, number of internode, shading.
CARBON EMISSION REDUCTION QUANTIFICATION THROUGH GREEN BUILDING AS A MITIGATION EFFORTS ON CLIMATE CHANGE AND GLOBAL WARMING Suryo Anggoro., dkk
Jurnal Rekayasa Lingkungan Vol. 7 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v7i2.1950

Abstract

Mitigation and adaptation are two approaches for taking policy action to address climate change impacts. Mitigation activities seek to reduce the sources or enhance the sinks of greenhouse gases, most notably carbon dioxide (CO2), and adaptation is to adjust human systems in response to actual or expected climatic stimuli or their effects. One signifance difference between mitigation and adaptation approach is emission reduction expressed in CO2-equivalent units. Emission reductions through mitigation activities can be easily measured. Green building is one of mitigation activities and this paper is to analyze policy impacts through green building approach in CO2 reduction equivalent units.keywords : green building, mitigation, climate change
ANALYSIS FOR POTENCY AND PRODUCTION OF GRANULE ORGANIC FERTILIZER BASED ON MANURE Firman L. Sahwan
Jurnal Rekayasa Lingkungan Vol. 7 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v7i2.1951

Abstract

Organic materials that are generally used as raw material for organic fertilizer granules (POG) is a natural organic material that has been degrade, smooth and dry. One of the main raw materials are always used with a very high percentage of usage, is manure. Manure potential in Indonesia is very high, amounting to 113.6 million tons per year, or 64.7 million tons per year to the island of Java. From this amount, it will be generated numbers POG production potential of 17.5 million tons per year (total Indonesia) or 9.9 million tons per year for the island of Java. While the realistic POG production predictions figures made from raw manure is 2.5 million tons annually, a figure that has been unable to meet the number requirement of POG greater than 4 million tons per year. Therefore, in producing POG, it should be to maximize the using of the potential of other organic materials so that the use of manure can be saved. With the use of a small amount of manure (maximum 30% for cow manure), it would be useful also to avoid the production of POG with high Fe content.keywods: organic material, manure, granule organic fertilizer
INTEGRATED OFFICE WASTE MANAGEMENT Rosita Shochib
Jurnal Rekayasa Lingkungan Vol. 7 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v7i2.1952

Abstract

Municipal waste from day to day has increased its production in line with the increase of urban population. However, running a waste management system has been unable to solve the problem of waste properly. Therefore, a new breakthrough is needed to deal with. With the enactment of Law No. 18 of 2008 on Waste Management, each source must be to reduce the amount of waste to be disposed of to the final processing of waste. The office is one of the sources of waste, also must reduce the amount of waste that must be disposed of to the final processing of waste (landfill). The purpose of this paper is to examine waste management in an integrated manner to maximize the waste management office. In the process of management, garbage collector used by officers in the study. The rest moved to the TPS waste. In this place officers also collect that is still valuable economic and processed organic waste into compost. Of these operations, the rest of office waste disposed to landfill about 48.7%keywords : office waste, integreted office waste management
ANALYSIS OF SUSTAINABILITYPEATLAND IN AGROECOLOGY OIL PALM PLANTATION Sowondo dkk
Jurnal Rekayasa Lingkungan Vol. 7 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v7i2.1953

Abstract

This research was based on the damages of peatlands. Peatland was potential to be developed as plantation. The objective of the research was to examine sustainability index of peatlands management on agroecology palm oil plantations at Bengkalis-Riau. The point location was determinated with purposif sampling as palm oil activited and which were peatland physiography at marine and brackish peat. The data collected using desk study and field survey. The sustainable measurements were conducted on the dimensions of ecological, economic, socio-culture, infrastructure and technology, law and institutional. Multi Dimensional Scaling (MDS) it’s called Rap-Insus-Landmag (Rapid Appraisal–Indeks Sustainability of Land Management) was used evaluatedsustainability of peatland management on agroecology palm oil plantation. The results of this study indicated that marine peat and brakish peat sustainability for five dimension (ecology, economic, socio-culture, infrastructure and technology, law and institutional) on the existing condition i.e. ecological dimension less sustainable (49,14 % and 46,60 %), economic moderate sustainable (69,30 % and 64,7 %), socio-culture moderate sustainable (52,32 % and 54,47 %), infrastructure and technology moderate and less sustainable (51,15 % and 49,64), law and institutional moderate sustainable (50,33 %and 56,99 %). Therefore, sustainability peatlands of management on groecology oil palm plantations have category less-to-moderate at the Bengkalis-Riau.keywords : peatland, sustainable, palm oil plantation
UTILIZATION OF OLD NUTMEG FLESH WASTE IN MALUKU Suryatmi Retno Dumadi
Jurnal Rekayasa Lingkungan Vol. 7 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v7i2.1954

Abstract

Until the end of 2007, nutmeg flesh had been disposed as a waste because it is not harnessed into a valuable product in nutmeg producer area on the island of Ambon and Banda in Maluku. Diversification treatment from nutmeg flesh waste into syrup can provide economical value to the product, and health benefits to those who consume it. Manufacturing process done by using simple apparatus starts from extracting nutmeg liquid, sterilizing nutmeg syrup container, mixing with sugar, bottling, labeling to produce salable nutmeg syrup. The 1:1 ratio of nutmeg liquid to sugar gives good taste and preferred. Extracted flesh waste has been utilized as nutmeg flesh cake by mixing sugar in ratio of 1:1, battering evenly and drying in the sun or a heating oven at temperature of 50 oC to produce tasty nutmeg cake with economical value-added.keywords : nutmeg flesh waste, nutmeg syrup, old nutmeg.
UTILIZATION OF OLD NUTMEG FLESH WASTE IN MALUKU Suryatmi Retno Dumadi
Jurnal Rekayasa Lingkungan Vol. 7 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v7i2.1955

Abstract

Until the end of 2007, nutmeg flesh had been disposed as a waste because it is not harnessed into a valuable product in nutmeg producer area on the island of Ambon and Banda in Maluku. Diversification treatment from nutmeg flesh waste into syrup can provide economical value to the product, and health benefits to those who consume it. Manufacturing process done by using simple apparatus starts from extracting nutmeg liquid, sterilizing nutmeg syrup container, mixing with sugar, bottling, labeling to produce salable nutmeg syrup. The 1:1 ratio of nutmeg liquid to sugar gives good taste and preferred. Extracted flesh waste has been utilized as nutmeg flesh cake by mixing sugar in ratio of 1:1, battering evenly and drying in the sun or a heating oven at temperature of 50 oC to produce tasty nutmeg cake with economical value-added.keywords : nutmeg flesh waste, nutmeg syrup, old nutmeg.
APPLICATION OF CLEANER PRODUCTION OPPORTUNITIES IN TAFU INDUSTRY CENTRE IN KALISARI AND CIKEMBULAN VILLAGE, BANYUMAS DISTRICT, PURWOKERTO Lestario Widodo
Jurnal Rekayasa Lingkungan Vol. 7 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v7i2.1956

Abstract

Cikembulan and Kalisari village, in Banyumas district of Central Java, has grown into TOFU industrial center. The population of tofu industrial is about 600 industry, spread across two villages. Livelihoods of local people are farmers and traders to support the industrial activities of tofu, soy such as providing raw material to provide firewood for cooking, and providing simple tools, etc.. In the process of production, tofu waste industry, one of which liquid waste is usually dumped directly into rivers or drains around the house, so the environment becomes polluted. The purpose of this activity is to provide cleaner production training and technical assistance in the process of cooking. The results showed that with improved stoves and furnaces, the fuel consumption of 42.5% save, or save Rp 31 453,-per period of the process, the length of cooking know that 50% faster. Break Even Point (BEP) The value of the dimension of time is 191 days, and the improvement of environmental conditions.keywords : cleaner production, tofu waste industry
ANALYSIS OF RAW WATER SUSTAINABILITY AT BABON WATERSHED (A Case Study of Semarang City) Raymond M., dkk
Jurnal Rekayasa Lingkungan Vol. 7 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v7i2.1957

Abstract

Babon Watershed (DAS) is one of the watersheds which one located are Central Java. It has been used as a source of raw water for agriculture, industry, drinking water and other household needs. That needs to be assessed the level of sustainability in watershed management of the raw water. This study aims to analyze the sustainability index and the status of management of raw water from the three dimensions of sustainability. Analysis methods used “multidimensional scaling” (MDS) called Rap WARESMA. The results are expressed in index form and the status of sustainability. The analysis showed that the ecological dimension ofsustainability are at less status (26.54%), dimension less sustainable economicstatus (43.18%) and socio-cultural dimension to the status of sustainable enough(50.83%). Of the 30 attributes that were analyzed contained 15 attributes influencing sensitive to the index and the status of sustainability with a verysmall error at 95% confidence level.keywords: watershed, multidimensional scaling, water, sustainability watershed management

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