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INDONESIA
Jurnal Rekayasa Lingkungan
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Core Subject : Agriculture,
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Articles 589 Documents
KERAGAMAN GENETIK INDUK UDANG WINDU DI PERAIRAN SELATAN PANGANDARAN DAN BINUANGEUN, JAWABARAT Ratu Siti Aliah
Jurnal Rekayasa Lingkungan Vol. 5 No. 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v5i3.1896

Abstract

An evaluation of the Black Tiger Brood Stock (Penaeus monodon) genetic diversity of Pangandaran and Binuangeun was conducted by using the mtDNA diversity of two gene locus of CO I and 12S rRNA to understand their population genetic diversity. The result show that the brood stock of Pangandaran has 17 haplotipe, while from Binuangeun has 13 haplotipe. The result indicated that the genetic diversity of the Balck Tiger brood stock of Pangandaran was higher than thatBinuangeun.Key words : Genetic diversity, Black Tiger brood stock, Pangandaran, Binuangeun
PENCEMARAN PESTISIDA DALAM BUDIDAYA PERTANIAN DAN UPAYA PENGENDALIANNYA Daru Mulyono
Jurnal Rekayasa Lingkungan Vol. 5 No. 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v5i3.1897

Abstract

The using of pesticides for agricultural pest control usually directed to plants, whereas almost of them are fall into soil. In the soil, the pesticides are very dinamics in concentration, because of several processes occur, such as chemical, and microbial processes. There are a tend that the pesticide have bad impact within the soil for crops production, especially the pesticides which have persistent active ingredient. For this reason, therefore are needed some particular soil managementin order to reduce or overcome the bad impact of pesticides in the soil. The some particular soil management are: soil tillage, using of organic matter, limming, irrigation, and application of microbial technique.Key words : pesticide, pollution
PEMUPUKAN DENGAN BAHAN ORGANIK UNTUK MENUJU PERTANIAN YANG BERWAWASAN LINGKUNGAN DESA SEMBALUN LAWANG, NUSA TENGGARA BARAT Sudaryanto Djamhari
Jurnal Rekayasa Lingkungan Vol. 5 No. 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v5i3.1898

Abstract

Most of people Sembalun Lawang Village have subsistence agriculture sector. The government programs to increase productions and to use an-organic fertilizer and chemical pesticide. To given this production input result to make other the soil low fertility. Is this on proved always from the Soil Laboratory, Mataram University.To increase fertility, there is a way to give organic fertilizer and micro-organism on at time activity soil processing. This a way a technick of agriculture plantation for organic agriculture wich concern in production and mantinence aruond eco-system.Keywords : organic fertilizer, environmently agriculture,
PENGURANGAN GAS RUMAH KACA DARI LIMBAH CAIR DI PABRIK KELAPA SAWIT PT PERUSAHAAN NUSANTARA, RIAU Irhan Febijanto
Jurnal Rekayasa Lingkungan Vol. 5 No. 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v5i3.1899

Abstract

Waste water utilization in palm oil mills (POMs) in Indonesia is limited only for land application and in some palm oil mills the waste water is unutilized and it is only discharged to a river. The technology of methane gas utilization produced from waste water have been developed, unfortunately economical barrier is a big problem to implement it in the POMs. Since Clean Development Mechanism (CDM) have been being introducing in Indonesia, many foreign investors who looking for Certified Emission Reduction (CER) visit and investigate potential reductions in Indonesia. Using CDM Mechanism, it will change feasibility of an activity of methane gas capture. An income from selling CER makes theeconomical feasibility of methane gas capture increase. The purpose of this study is to investigate the potential methane gas produced in waste water pond in all POM owned by PTPN V, located in Riau Province. Area of own plantation, amount of processed (Fresh Fruit Bunch (FFB) and distance of the location are proposed as a consideration for selecting candidate locations. The potentialmethane gas captured was calculated. It was known that four POMs have a potential methane gas amount produced from waste water pond, and the investment in those locations were feasible based on the NPV calculation result. Utilization of captured methane gas as a fuel for power generation is inconsiderate, because negotiation is predicted will be takes a long time.Key words: green house gasses, palm oil mill, empty fruit bunch, fresh fruit bunch, palm mill oil effluent, clean development mechanism
KARAKTERISTIK FISIK DAN TINGKAT BAHAYA EROSI TANAH ULTISOL Sudaryono sudaryono
Jurnal Rekayasa Lingkungan Vol. 5 No. 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v5i3.1900

Abstract

Soil erosion is a major factor leading to cause land damage in the upstream region. Therefore, erosion control should be done in the preservation of land resources and the environment can be maintained and the welfare of farmers can be improved. Land Ultisol widespread in many Kalimatan Islands, ultisol soil types other than guilty of fertility, soil types have the property ultisol easy erosion. As a result of coal mining activities carried out by PT KPC lead to peeling layers of top soil to the depth of rock. This stripping has directly changed the soil condition. Ultisol soil physical conditions in Kalimanan (available water capacity, density lumps, texture, structure, pore space and permeability of the soil) are relatively low, so they need to improve theaddition of organic materials, and lime. The process of reclamation of former coal mining PT. KPC has been done very well. The analysis of fertility levels and the amount of potential soil erosion occurs indicates that the post-miningrehabilitation revegetation way to post-mining land with the procedure referred. It can be seen from the parameters of soil fertility and erosion rates of post-mining land have been rehabilitated (56.5614 erosion rates tons/hectare/year) with areas of pristine forests (erosion rates 52.175 tons/hectare/year) were not show significant changes.Keywords: ultisol, rehabilitation, physical soil, erosion
PENGGUNAAN AIR SUPER KRITIS PADA DEPOLIMERISASI NYLON-12 (BATCH PROCESS) Mohamad Yusman
Jurnal Rekayasa Lingkungan Vol. 5 No. 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v5i3.1901

Abstract

Water at the supercritical state is a new process for the chemical recycling. At this thermodynamic state i.e. Pc = 218 atmospheres and Tc = 374oC , water behaves very differently from its everyday temperament and it is a very good solvent for organic components. Experimental studies show that supercritical water can decompose hydrocarbons/polymers and produce useful products like 2-Azacyclotridecanone /lactam-1 from Nylon-12 (batch process). The decomposition process itself was carried out in batch reaction system in order to get more information about product distributions, time dependence, and scale-up possibilities.Keywords: supercritical water, decomposition, batch, polymer, hydrocarbon
STRATEGI PENGEMBANGAN PULAU GEBE PASCA PENAMBANGAN NIKEL YANG BERKELANJUTAN Mardi Wibowo
Jurnal Rekayasa Lingkungan Vol. 5 No. 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v5i3.1902

Abstract

Since 1977 until 2005, PT. ANTAM has been exploited nickel ore resources at Gebe Island – Center of Halmahera District – North Maluku Province. Mining activity not only gives economically advantages, but also causes degradation of environment quality especially land quality. Therefore, it needs evaluation activity for land quality changing at Gebe Island after the mining activity (postmining). For handling Gebe Island after mining activity needs identification of the problems, potential and obstacles as the basic for arranging development strategy of Gebe Island. This research used Focused Group Discussion (FGD) method, desk study and field survey. Base on this research the important think has to be done, are : (a) to make or open new market at surround Gebe Island; (b) development Gebe Island has be base on locally resources and export oriented; (c ) needinvestor as prime mover in Gebe Island; (d) optimize of PT ANTAM’s asset; (e) increase institution coordination and program integration.Key words : sustainable development, post mining
KEBIJAKAN NASIONAL DALAM BIDANG ENERGI DAN LINGKUNGAN DALAM ADAPTASI DAN MITIGASI PEMANASAN GLOBAL Ichwanudin Mawardi
Jurnal Rekayasa Lingkungan Vol. 5 No. 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v5i3.1903

Abstract

Current human activities have the potential to increase gas caused by the greenhouse effect. Increasing the temperature is not constant, but in the long time scales indicates that there has been global warming. In connection with efforts to save the earth from climate change in poor countries in the world through the UN session held in Bali have agreed to: (1) Bali Roadmap; (2) agreement on action to perform activities of adaptation to the negative impacts of climate change. Many people who took out the activities of carbon dioxide, kloroflorometan, nitrogen oxides, methane, aerosols, and heat or clearing land for housing, agriculture or logging. The greenhouse effect in nature has been going on for billions of years. Without water vapor and CO2 in the atmosphere,the temperature of the earth will be cooler 33 ° C compared to the current condition, so the earth becomes unfit for habitation. Thus, the greenhouse effect caused by water vapor and CO2 has a positive effect for human life. The problem right now is a greenhouse gas concentrations increasing beyond normal levels of natural as well as the emergence of several new greenhouse gases such as CFCs and CFC successors, which would cause further warming and increasingly threatening the environment carrying capacity. The world has undergone changes in temperature, season, and also increased the frequency of the most dramatic climate that requires continuous regulation to control the global climate system strictly.Keywords: greenhouse effect, global warming, climate change
PERAN TEKNOLOGI DALAM PENGENDALIAN PENCEMARAN LINGKUNGAN HIDUP Arie Herlambang
Jurnal Rekayasa Lingkungan Vol. 6 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i2.1923

Abstract

Basically, nature has the ability to perform the restoration of environmental damage caused by increased human activity, but because of the limited carrying capacity, then the environment has decreased the quality from year to year. In saving the environment, technology plays a role in reducing the risk of pollution, increased efi siensi process, and creating processes and environmentall friendly products, monitoring and prediction of environment quality, environmental pollution control, restoration and environmental improvement. Waste Technology (end of pipe technology) are widely used to cope with environmental pollution, both for liquid waste, solid and air. Waste processing technology developed for the waste can be in accordance with quality standards thathave been established, while monitoring technology has been developed either manually or automatically. For recovery and improvement of technology has been developed remedies and restoration that rely on bacteria in nature.Keywords: end of pipe technology, reuse, recycle, reduce (3R), carrying capacity, and environment pollution
BAHAN ORGANIK TERLARUT DALAM AIR LAUT Arif Dwi Santoso
Jurnal Rekayasa Lingkungan Vol. 6 No. 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jrl.v6i2.1924

Abstract

Seawater contains high amounts of organic material and ions causing high salinity.The distribution of nutrients in the ocean is determined by ocean circulation, biological processes of uptake and mineralization, and subsequent regeneration of nutrients by migration of animals and by supply from the land.Topic related to sea water is important to discuss and to be a challenging with many researchers in Indonesia. In this paper, organic mater from sea water was learned in detail. The information contained of formulation history, justifi cation, distribution, advantages, and method of measure, type and effect to environment.Keywords: organic material, sea water, dissolved

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