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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 14 Documents
 1   2 
Search results for , issue " Vol 6, No 2: Jurnal Rekayasa Lingkungan" : 14 Documents clear
PROGRAM ’KONVERSI MINYAK TANAH KE LPG’ SEBAGAI SUATU TEHNIK PENGURANGAN EMISI Suarna, Endang
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

The goal of Government Policy on converting the utilization of kerosene to LPG is to reduce kerosene consumption and fuel oil subsidy. As kerosene has higher pollutants and greenhouse gases emissions rather than LPG, the program also has impact on reducing those emissions that would lead to improving indoor air quality. Higher energy efficiency of LPG stove and more reserve production ratio (R/P) of gas can be attributed to the advantages of utilization of LPG. Indirectly, the conversion kerosene to LPG has another impact on reducing illegal blending between gasoline or diesel with kerosene for transportation sector. The program not only has economical advantages, but also has environmental advantages.Key words: LPG, kerosene, fuel oil subsidy, energy efficiency, indoor air quality
INSIDE COVER Cover, Inside
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

BAHAN ORGANIK TERLARUT DALAM AIR LAUT Santoso, Arif Dwi
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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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
PENINGKATAN NILAI NUTRISI LIMBAH LUMPUR MINYAK SAWIT SEBAGAI PAKAN TERNAK Akhadiarto, Sindu
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Indonesia is the largest country that has oil palm plantations, covering 7.3 million ha area (2009), with production of 19.4 million tonnes of crude palm oil (CPO) which is expected to palm oil sludge waste as much as 1.94 million tons/year. Palm oil sludge waste is one alternative to potential animal feed ingredients. The low nutritional value and high fiber content causes palm oil sludge requires special treatment before given to animal. The fermentation process is able to increase the nutritional value of the palm oil sludge, such as increasing levels of crude protein and energy metabolism, and also may reducing content of coarse fiber. This fermentation product can be stored at room temperature for 12 weeks without experiencing significant changes in nutritional value. The usage limit of palm oil sludge which is recommended for poultry is 15%. The optimum limit of palm oil sludge in the diets of goats and sheep is 47% and 40% for cows (in concentrate). The use of rice bran on ruminants can be replace entirely by the palm oil sludge. Fermentation techniques can be done to improve the nutritional value of the palm oil sludge, but this technique needs to be studied economically, such as: during the drying process (because of the high content of LMS), and the quite expensive fermentation. Another technique to minimize costs has been done, for example by utilizing the available energy sources in the plant oil.Keywords: palm oil sludge, nutritive values, ruminant, poultry, fermentation.
PREFACE Preface, Preface
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

PENINGKATAN PRODUKTIVITAS LAHAN PODZOLIK MERAH KUNING MELALUI PEMUPUKAN PUPUK HIJAU Flemengia congesta DAN KAPUR DOLOMIT Djamhari, Sudaryanto
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

The obyektive of the researcah is to know the effect of to the land fertility, regarded to soybeen production. The reserch use Complete Randemize Disign With One Way Analysis of Variance, Regression, and Correlation in order to know the effect of treatment to the land fertility. The research was carried out in Wonoharjo Village, Unit VIII Kuro Tidur Transmigration area, Bengkulu, during three planting season from 1999 to 2000. The result of the research showed that Flemengia congesta as a fence crop or hedgerows was segnifi cant to land fertility through improvement of nutriens availability, increasing pH, decreasing availability of aluminium (Al). The effect of organic matter from prunning ofthe hedgerows into the soil a high of 5,0 ton/ha will increase average soybenn production from 13,974 kw (dry grain) to 18,176 kw/ha or increase 30,07 %, whereas the effect of organic matter 5,0 ton/ha combained with dolomit 2,5 ton/ha will increase 43,00 %. The effect of organic matter 10,0 ton/ha combined with dolomit 2,5 ton/ha will increase average soybeen production from 13,974 kw/ha or increase 57,19%.Keywords: red yellow podzolic land, organic matter, dolomit, land produktivitas
PROSPEK PENGEMBANGAN KACANG TANAH UNTUK MENUNJANG KETAHANAN PANGAN: (STUDI KASUS UJI VARIETAS DI DESA MAKAMENGGIT KABUPATEN SUMBA TIMUR – NTT) Widiyono, Wahyu
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

To understand the prospect of groundnut development (Arachis hypogaea) for supporting food security in semi arid area, survey and experiment of groundnut varieties were undertaken in Makamenggit Village, East Sumba District, the East Nusa Tenggara Province. Aim of research was to understand natural resources (soil, climate and water) and production potency based on cased study of 6 (six) varieties of groundnut which was cultivated under manure treatment. The six groundnut varieties, i.e. Tupai, Komodo, Zebra, Gajah, Bogor variety and Makamenggit local variety were cultivated in vertisol soil type, organic manure of buffalo feces, irrigation manually from water river in dry season. Parameters of plant height, leave number, and leave cover each individual plant were observed every week, since 5 weeks until 12 weeks after planting. Survey indicated that agro-climate and hydrology of East Sumba was very potential to support groundnut development not only in the rainy season short period (3-4 months), but also in the dry season by utilization of the existence of waterresources (some river and ‘embung-embung’). Result of research showed that six varieties of groundnut had good vegetative growth. The Makamenggit local variety which showed vegetative growth so good performance was potential to promote as a national superior seed. It was obviously that organic manure could increase groundnut vegetative growth (and also reproductive yield) at the vertisol soil type. To develop groundnut cultivation in East Sumba area the utilization of organic manure, cultivation in dry season by irrigation of limited water and seed diversity need to be socialized continuously to the farmers.Keywords: natural resources, prospect, groundnut, food security, east Sumba.
TEMPAT PENGOLAHAN SAMPAH TERPADU (TPST) URGENSI DAN IMPLEMENTASINYA Sahwan, Firman L.
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

TPA is the main priority in handling municipal solid waste in Indonesia, with many problems and challenges. TPST is one of other alternatives in handling solid waste in accordance with Solid Waste Management Law No. 18 year 2008, therefore it has an important role in reducing heavy burden of TPA. Activities that can be done in TPST are collecting, sorting, re-using, re-cycling, treatment of fi nal processing, either for organic solid waste or for inorganic solid waste. However, based on characteristic of municipal waste, it’s better the stressing activities are pointed to organic solid waste treatment that make composting as the main alternative activity. Government support and help are much needed in order that TPST activity can be optimally done.Keywords : municipal solid waste, integrated treatment facility, composting
PENDUGAAN PERKEMBANGAN POPULASI ORYCTES RHINOCEROS L. (COLEOPTERA: SCARABAEIDAE) DI PERKEBUNAN KELAPA SAWIT (ELAEIS GUINEENSIS JACQ.) Pujiastuti., dkk, Yulia
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
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Abstract

Approximately 1.000 species of insects are associated with coconut worldwide. Over 40 species of coleopteran pests have been recorded – most are under effective natural control but some require interventions. In view of the increasing and devastating damage by coconut beetle (Oryctes rhinoceros) to coconut palms in the many countries, many efforts are made to find appropriate method to forecast its population. The basic procedures of these monitoring programs are outlined together with forecasting method. A study to forecast coconut beetle population has been carried out in palm oil estate, near Palembang. Study was aimed to estimate population after several observations of beetle population. Another aim was to assess the influences of environmental factors, i.e. temperature, relative humidity and rainfall intensity, which could affect to the beetle population fluctuation. Results showed beetle population could 65.12 percent in average due to unsuitable environmental factors. At first observation temperature was recorded 26 – 30 0C and 1185 larvae werefound. At last observation larvae population decreased to 392 larvae at temperature 29 – 33 0C. It was found that relative humidity and rainfall intensity also played important role in decreasing beetle population.Keywords: coconut beetle, time series analysis, population estimation, environmentalfactors
PEMBENIHAN DAN AKLIMATISASI PADA SISTEM ANAEROBIK indriyati, Indriyati
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Seeding in Fixed Bed anaerobic reactor are infl uenced by several condition such as the growth rate total population of microbial, bacterial adaption to infl uent and the retention of biomass in reactor. The aim of this observation is to fi nd out the seeding and acclimation process in anaerobic process by using plastic as support material. Seeding and acclimatization process run smoothly can be seen from the increasing of infl uent or substrate and following by the increasing degradation of soluble COD, beside that the decreasing of VSS concentration indicates that microorganism are all ready fi x in support material, therefore reactor can be operated continuously and the acclimatization process can be stopped.Keywords : anaerobic seeding, acclimation anaerobic process

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