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JURNAL TEKNOLOGI LINGKUNGAN

JTL
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Published by Badan Pengkajian dan Penerapan Teknologi

ISSN : 1411318X EISSN : 25486101 DOI : -

Core Subject : Social,

Environmental Science

Jurnal Teknologi Lingkungan (JTL) is a journal aims to be a peer-reviewed platform and an authoritative source of information. JTL is published twice annually and provide scientific publication for researchers, engineers, practitioners, academicians, and observers in the field related to science and environmental technology. We publish original research papers, review articles and case studies focused on Environmental Sciences, Environmental Technology as well as other related topics to Environment including sanitation, environmental biology, waste water treatment, solid waste treatment, environmental design and management, environmental impact assessment, environmental pollution control and environmental conservation.

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Articles 1,211 Documents

107 108 109 110 111

FLOWER BIOLOGY OF TWO DIOSPYROS SPECIES NEIGHBORLY LIVE AT CSC AREA: DO POLLEN VIABILITY AND TUBE GROWTH RATE SHIRE ENDEMIC DISTRIBUTION Erlin Rachman
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Aims of study were to compare flower structure, pollen viability and pollen tube growth rate of two Diospyros species neighborly live in Cibinong Science Centre (CSC) park, Diospyros blancoi and D. celebica, and pursue if pollen-tube growth rate shire reasons endemic distribution of D.celebica in native habitat. Floral structurewas in situ or ex situ morphologically observed. Germination test and pollen tube growth incubation were done in Sarfatti medium and digitally captured and computerize analysis. The result showed that, both species have flower part resemblance each other. D. blancoi has bigger size in almost all flower parts. D. blancoi showed much more pollen viability (41% vs 7%) and tube growth rate than D. celebica1 (66 vs 0.57 μm per minute). Average pollen-tube length of both species at about 31/2 hours incubation was significantly different each other (342.679 ± 37.067 vs 128,673 ± 49,215μm). Most observed D. blancoi female trees set high number of fruit year to year and almost observed D. celebica female trees set very low number of fruit and some time without fruit in the year. It is associated with geographical distribution difference between the two species. Very significantlydifferent in pollen-germination percentage and pollen-tube growth rate provide a tool of further study to know microenvironment for reproduction and propagation of the endemic species, D. celebica.

SPASIAL STATISTIK UNTUK ESTIMASI DAN PERAMALAN PRODUKSI PERTANIAN STUDI KASUS: KABUPATEN INDRAMAYU DAN SUBANG Mubekti Mubekti
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Applied Study on Agricultural Production estimate and Forecast by using Area Frame Sampling in Indramayu and Subang Districts is based on the successfulness of ‘Area Frame Design’ development for the whole Java Island. A brief explanation of design ispresented to refresh its basic idea. The methodology of the study is discussed and the mathematical formulation to estimate rice refers to direct expansion approach is presented. The main aim of the study is to prove that area frame sampling is reliableto implement for rice production estimate and forecast. For that purpose, sample segments were extracted and inside the segment crop cutting was conducted. Three times ground survey were conducted to map rice growing stage and crop cutting. Theanalysis of ground data for both yield and harvest area was done then production estimate was derived. Furthermore, harvest area forcast for next three months after survey-1 was also conducted. Regarding to the man power capability and the results in both districts, it is considered that area frame sampling is feasible to implement indistrict level.

DINAMIKA PERUBAHAN TEMPERATUR DAN REDUKSI VOLUME LIMBAH DALAM PROSES PENGOMPOSAN (STUDI KASUS PENGOMPOSAN DI RPH CAKUNG â€“ JAKARTA TIMUR) Sri Wahyono
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

The goal of this research is to study the dynamics changing of temperature, weight and volume of wastes during composting process in Cakung Slaughterhouse. The composting process was done using windrow system for 65 days. Windrow was turned mechanically using compost turning machine once a week. Composition of input wastes was calculated based on its volume and specific weight. Regularly, windrows were measured of their volume, weight and temperature. The composting shows that weight and volume reduction was exponentially done in the two of the first weeks. The temperature also exponentially increased in that time. Those indicated that the increasing of metabolisms and development of microbiology during composting process. Weight and volume reduction reached about 80 percent, and their temperature reached above 55oC during first weeks. The dynamics changing of the temperature and volume/weight reduction was the key parameter for evaluating composting process.

KONSERVASI PIPER MINIATUM Bl. DENGAN PERBANYAKAN CARA PERUNDUKAN;EKSTRAKSI DAN UJI AKTIFITAS ANTIRADIKAL BEBAS DPPH, DAN ANTIDIABETIK Sumarnie Hasto Priyono
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

The aim of this study was to determine the potency of Piper miniatum as medicinal plant and its propagation method. Extraction and bioassays test (antioxidant activity by DPPH method and antidiabetes by á- glucocidase test) were done. Propagationwas done by bending the internodes at different maturity (R1, R2, R3) and growth medium (compost artificial, mixed husk, forest compost and soil as control treatment).The experimental design in this study was Complete Block Design, with 10 replication. The result showed that forest compost had positive respons to numberof shoot, number of new internodes, and number of leaves on R1, R2 and R3. Old internode showed positive effect at mixed husk growth medium to number of shoots (19), emergence of new internodes (21). New seedling/plantlet were obtained 4 weeksearlier at bending treatment than that of stem cutting. Bioassays test showed that methanol extract of P. miniatum had no- free radical scavenger activity but very active on á-glukocidase inhibition with LC50 for leaves and mixed of leaves and stem were 0.82 and10.75 respectively.

ECOLOGICAL STUDIES ON NEPENTHES AT BARITO ULU, CENTRAL KALIMANTAN, INDONESIA Muhammad Mansur
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Ecological studies on the Nepenthes species at Barito Ulu, Central Kalimantan, Indonesia were conducted between August 2005 and September 2006. Surveys and two small plot inventories were used to determine the diversity and population of Nepenthes at the study site. We found eight Nepenthes species around the BaritoUlu study area: N. albomarginata, N. ampullaria, N. gracilis, N. hirsuta, N. rafflesiana, N. reinwardtiana, N. stenophylla, and N. hispida. Plot A was dominated by N. rafflesiana with one other species found; whilst in plot B we found five species but it was also dominated by N. rafflesiana. In plot A, the one year stem length growth rate of N. albomarginata was faster than N. rafflesiana (5.0 and 3.5 cm respectively). While in plot B, N. gracilis (21.7 cm) and N. reinwardtiana (13.1 cm) showed faster growth rates than N. albomarginata (5.2 cm), N. rafflesiana (7.0 cm) and N. stenophylla (8.5 cm). Generally, the habitat of Nepenthes in the study site is heath forest.

PEMANFAATAN POTENSI TENAGA AIR DI SALURAN IRIGASI BANJARCAHYANA, KABUPATEN BANJARNEGARA, PROPINSI JAWA TENGAH SEBAGAI USAHA PENGURANGAN EMISI GAS RUMAH KACA Irhan Febijanto
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

This study was conducted by collaboration between BPPT, Chugoku Electric Power, and PT Indonesia Power and funded by GEC (Japan-Geo Environment Center). The study was started on August 2005, and finished on September 2006. The purpose of the study was to explore the unutilized potentials micro hydro power plants (MHPP) in Banjarcahyana irrigation channel. These sites are located at south eastern of Banjarnegara city. Development of these MHPP will be planned put into Clean Development Mechanism (CDM), therefore operation of these power generation would be calculated to reduce global warming effects. According to the study result, it was found eight locations having potential to build as MHPP. The development of the project economically feasible estimated could reduce 17,252 t-CO2 of Green House Gas Effect annually. This study also provides new emission coefficient factor for electricity grid system of Jawa Bali Madura (JAMALI).

ASPEK LINGKUNGAN SEBAGAI FAKTOR PENENTU KEBERHASILAN BUDIDAYA JAMUR TIRAM (PLEUROTUS SP) Netty Widyastuti
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Environment aspect as requirement growing of oyster mushroom (Pleurotus sp.), give priority like temperature, relative humidity, time, CO2 and light. The parameter have different influence to each stadium or stage, for example mycelia growing on substrate, formation of fruiting primordia, formation of fruiting body, harvest cycle and BER (Biological Efficiency Ratio) value. pH medium have to regulated (betweenN6-7), incubation phase (22 - 28 O C ), humidity 60-70% and fruiting body phase 16 -N22 O C. Growing mycelium without light, growing fruiting body is needed light stimulant, light intensity 60 - 70 %.

KONDISI LAHAN PASANG SURUT KAWASAN RAWA PENING DAN POTENSI PEMANFAATANNYA Euthalia Hanggari Sittadewi
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

The tidal land in Rawa Pening’s region is land that has been formed as caused of up and down water level process of Rawa Pening’s lake. The wide of tidal land that can be used are fluctuated beetwen dry and rainy seasons. The main used of tidal land is for rice field. The wide of tidal land that can be used for rice field beetwen elevation + 462,30 m and +463,30 m are 812 Ha, between elevation + 462,05 m and +462,30 are 218,51 Ha. There are some species of paddy that has been cultivated in that area, are IR-64, GH barito, ciliwung, cisadane, membramo and mentik. Mean of paddy yield is about 2,5 – 5 ton/ Ha.

PELESTARIAN CENDANA MELALUI POLA KONSERVASI LEKAT- LAHAN DI KABUPATEN BELU, NTT Albertus Husein Wawo
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Sandalwood (Santalum album L) is one of tropical plant in Indonesia that possess high economic value. Natural distribution of sandalwood centered in arid area of Nusa Tenggara Timur province and now a days this plant was groupped as rare plant. Many activities of in situ conservation for sandalwood have been carried out at some locations but did not give satisfaction in result yet. Ex situ conservation with utilize conservation on farm system is new model of plant conservation that involved local people. System of conservation on farm for sandalwood plant be defined as cultivation of sandalwood in the field/garden and home garden with involved farmers or local people. This system is known 2 models are ABC model (Model Agroforestri Berbasis Cendana) and Home garden as model of conservation area. Both models that mention had been applied in Belu regency, Nusa TenggaraTimur province.This research proposed to study the growth of sandalwood in ABC Model in the field/garden and in home garden as model of conservation area and to know the system of conservation on farm for sandalwood in Belu regency, Nusa Tenggara Timur province. ABC model was applied in 2 locations at Dirun Village (altitude at1000 m above sea level) and Teun Village (altitude at 500 m above sea level), while home garden as model of conservation area was applied at Teun village only.The Result shown that the rate of sandalwood growth in ABC model at Dirunvillage from first to third year between 60-70 cm in height per year, while sandalwood growth from third to fourth year has happened decreasing about 25 cm. The rate of sandalwood growth in ABC model at Teun Village from first to second year about 70-77 cm in height. The rate of sandalwood growth in home garden during 6 month after planting time about 4 -5 cm in height. Number of seedling still alife during 2 years after planting time in ABC model at Teun Village about 72%, during 4 yaers after planting time in ABC model at Dirun Village about 79%. While sandalwood seedling still alife during 6 months in home garden as model of conservation area about 75%. High persentation of seedling still alife with optimum rate of sandalwood growth have been found in this research because presence involvement of localpeople.

KARAKTERISTIK AIR ASAM TAMBANG DI LINGKUNGAN TAMBANG PIT 1 BANGKO BARAT, TANJUNG ENIM SUMATERA SELATAN SEBUAH STUDI KASUS ASAM TAMBANG Hidir Tresnadi
Jurnal Teknologi Lingkungan Vol. 9 No. 3 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

In Coal Mine Pit 1, Bangko Barat, Tanjung Enim, South Sumatera mine activity lowered the water pH in the effluent water of the mine. So the Mine Environmet Managemet of PTBA try to raise the pH to meet Kep Men Neg LH No 113 Tahun 2003. This study attempt to characterize the performance of the water treatment,which managed by acid-mine dranage management of the PTBA. Some water samples was taken in the study area, such as the passive treatment in Pit 1 Bangko Barat, rainwater pond near by, lake, mine sump, settling pond, the water treatment of acid mine drainage in the coal stockpile in Bangko Barat, the mine sump of Air Laya Mine and Air Laya Channel. The result of the study showed that in the coal stockpile the pH is around 5, closed to the pH di rainwater pond and Air Laya putih Channel (around 6), output of water treatment in Tambang Air Laya. Meanwhile thepH in the passive treatment, settling pond, mine sump Banko Barat and in Air laya Mine drainage system is 2 - 3. The source of Acid Mine Rocks is coal seam rock interval and overburden of the coal. Meanwhile the performance of water treatment in the lake, Air Laya Putih channel and coal stockpile better than in the passivetreatment, settling pond, mine sump of Air Laya MIne and pit 1 Banko barat. So PTBA Environment division should improve the process capacity of water treatment in the pit of Bangko Barat.

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