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Ecotrophic, Journal of Environmental Science

ECOTROPHIC
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Published by Universitas Udayana

ISSN : 19075626 EISSN : - DOI : -

Core Subject : Social,

Environmental Science

Ecotrophic, Journal of Environmental Science (ISSN : 1907-5626) atau yang disingkat EJES, merupakan media publikasi bagi hasil-hasil penelitian, artikel dan resensi buku dibidang ilmu lingkungan. EJES adalah peer-reviewed dan open access jurnal, diterbitkan dua kali setahun yaitu bulan Mei dan September oleh Program Studi Ilmu Lingkungan, Program Pascasarjana Universitas Udayana.

Arjuna Subject : -

Articles 359 Documents

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PEMANFAATAN SEDIMEN PERAIRAN TERCEMAR SEBAGAI BAHAN LUMPUR AKTIF DALAM PENGOLAHAN LIMBAH CAIR INDUSTRI TAHU Ni Luh Gede Sudaryati; I Wayan Kasa; I Wayan Budiarsa Suyasa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 3 No 1
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Tofu industries are food industries which use a lot of water, both for operational system and as a basic material for production.Tofu industries produce liquid sewage which contains high organic subtances. Liquid sewage of tofu industries is one of the sources ofcontaminants, so that it is needed to have an appropriate waste processing. In order to overcome liquid sewage problem, a wasteprocessing is to reduce and eliminate dangerous materials and pathogenic microorganisms. Biological treatment is the commonest way inhandling the liquid waste from food industries. One of the biological processing that can reduce the contaminants content in liquidindustrial sewage is activated sludge. This activated sludge can also metabolize and break up the contaminants in the sewage and thisprocessing uses sludge.This research was carried out in order to know the growth rate of microbe biomass in activated sludge from 3 types of sludgetaken from the ditches of the tofu industries, the sludge taken from Pesanggaran Slaughterhouse and the sludge taken from Badung Riverwhich were composed into 4 compositions and then were seeded, than tested to get 4 sludge composition in order to reduce COD in tofuindustrial sewage. The parameters used were physical and chemical views. This research was done by measuring the changes in VSSvalue of the four sludge compositions which were seeded and the COD of the four tested sludge compositions.This research used factorial Randomized Completed sampling that consisting of 2 factors and three repetitions, that is the firstfactor was composition sludge and the second one ws incubation period and then were analyzed by using descriptive comprative analysisand uni –variant analysis.The result of this research shown that the best sludge composition used as activated sludge was the sludge composition takenfrom the ditches of tofu industries was 50 %, the sludge taken from Pesanggaran Slaughterhouse was 25% and the sludge taken fromBadung River was 25 % with had VSS of micobe biomass growth of 2265 mg/L and was able to reduce COD of tofu industrial liquidsewage up to 46.645 mg/L.

ANALISIS KONDISI INDEKS KUALITAS AIR PADA ENAM MATA AIR DI KABUPATEN GIANYAR, BALI I Wayan Gde Samping Gargitha; I Wayan Restu; Alfi Hermawati Waskita Sari
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 10 No 2 (2016)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Spring is the source of water that occurs naturally. This research aim was to investigate the water quality status of six springs in Gianyar regency based on water quality index.This research was conducted in January 2016 at Taman Sari Spring, Tirta Sudamala Spring, Beji Kengetan Spring, Gerembeng Kengetan Spring, Rijasa Spring and Beji Jeleka Spring. The samples were taken using purposive sampling method and analyzed using descriptive quantitative. The value of water quality index determine using 9 parameters, such as temparature changes, turbidity, total dissolved solid, pH, dissolved oxygen, biological oxygen demand, nitrate, phosphate and faecal coliform bacteria. The results of water quality index showing that the six springs were in good category. The highest value of water quality index was at Taman Sari spring (88,48). The next highest value was at Beji Jeleka spring (86,87). Tirta Sudamala spring, Beji Kengetan spring, Gerembeng Kengetan spring and Rijasa spring have a value of water quality index 86,12; 84,29; 81,66 and 85,83.

STRATEGI PENGELOLAAN SUMBERDAYA ALAM BERBASIS MASYARAKAT DI TAMAN WISATA ALAM PENELOKAN KABUPATEN BANGLI IWAYAN GEDE BUDIANA; N.K Mardani; I NYOMAN SUNARTA
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 6 No 2 (2011)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Natural resources of forests is one of the natural wealth that has a very strategic value. Although these natural resources belong to the category potential of renewable natural (renewable), the management of the natural wealth of this should really be done in a wise, prudent and professional. The purpose of this study to determine the public perception of forest management at Natural Tourism Park (1WA) Penelokan and formulate a strategy of community-based naturalresource conservation in the 1WA Penelokan. Public perception of the spread of the questionnaire obtained by the method of purposive sampling. Further identification of internal and internal factors to formulate conservation strategies by u sing SWOT analysis. The results showed people's perception about the functioning of 1WA Penelokan stated that forests have many functions (multiple functions). Public perception of management policies that 1WA Penelokan community does not know the regulations related to forest management. Public Perception of Institutional Management in Penelokan 1WA stated that they are not part of forest management institutions. Public perceptions of the Rights and Obligations of Civil Society in the Management of 1WA Penelokan society have the perception that forests are publicly owned assets (common property). Community-based conservation strategy that is obtained by optimizing the management of natural resources Penelokan 1WA -based society, optimizing the ecological functions of 1WA Penelokan with community involvement, empowering communities to preserve 1WA Penelokan, optimize community participation in natural resource management 1WA Penelokan, improve education and socialization programs related institutions to the community, improve coordination among stakeholders in the management of 1WA Penelokan, improve the quality of the human resources about the function of 1WA Penelokan, socialize legislation to improve environmental quality, coordinate the relations between stakeholders to pressure changes in the function of forests, increase socialization and coordination to reduce damage forest environments, improve the quality of human resources management agencies in providing socialization and counseling, and optimize the role of stakeholders to suppress the loss of forest land.

Integrasi Teknologi Pengideraan Jauh dan Sistem Informasi Geografis untuk Estimasi Serapan dan Emisi CO2 di Kota Denpasar I Wayan Nuarsa; Abd. Rahman As-syakur; I Gusti Alit Gunadi; I Made Sukewijaya
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 12 No 2 (2018)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Integration of Remote Sensing Technology And Geographic Information Systems for Estimation of CO2 Updake and Emissions in Denpasar City Rapid economic growth in the Denpasar City has an impact on the rate of population growth. This will lead to increasing land requirements for settlements, infrastructure, and other supporting facilities. Meanwhile, the availability of land for green open space (RTH) will decrease. Several studies show that from year to year the area of ??vegetation cover decreases, and the air temperature in Denpasar City is increasing. Therefore, research to calculate CO2 uptake by urban plants and CO2 emissions from various activities in the city of Denpasar is needed to be done. Estimates of CO2 uptake by plants are carried out using remote sensing technology and GIS. Meanwhile, the calculation of CO2 emissions is carried out by an inventory of CO2 pollutant sources from point sources, areas sources, and mobile sources. The output of this study is a distribution map of CO2 absorption and emissions. From the map it can be seen whether the CO2 emissions of Denpasar City are higher than the ability of existing plants to absorb them. The results showed that the ability of plants in Denpasar as a green open space to absorb CO2 was 235,780.63 tCO2/year, while total emissions from pollutant sources were 862,955,856 tCO2/year. The sources of CO2 emissions include from point source 37,649 tons/year, from source area 95,310 tons/year, and from mobile sources at 862,955,856 tons/year. From the movable source the biggest contributor to CO2 emissions is light vehicles, which amounted to 540,355.88 tons/year (62.63%), then followed by motorcycles at 260,187.43 tons/year (30.16%). The amount of CO2 emissions in Denpasar City is 3.66 times greater than the ability of plants to absorb CO2 in 2015 and there is a tendency for this gap to be even greater in the future. To overcome this problem, regulations are needed such as reducing the number of motorized vehicles by increasing public transportation services. The use of vehicles using energy sources other than fuel such as electricity is another alternative to consider. Finally, the increase in the number and quality of green open spaces is a conventional method that needs to be done.

ANALISIS KADAR LOGAM BERAT AIR SUNGAI SEKONYER DI KABUPATEN KOTAWARINGIN BARAT KALIMANTAN TENGAH. Maria T. Indarwati; M.S. Mahendra; I W. Arthana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 2 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Sekonyer river as west border of Tanjung Puting National Park, is the main flora and fauna preservation areasespecially for orangutan conservation. Part of Sekonyer river upper course around year 1990 to 2002, there was anillegal gold mining (IGM) activity, and in 2002 this IGM was forbidden to be operated because of the use of mercuryfor extracting the gold. In former IGM location, up to this research has been done, the location is still used for silikapuya (sand) mining that is extracted from the sands by using water from the river, as a result, the waste water wasinundated in the mining area and flows into Sekonyer river. The objectives of this research are first of all, to identifythe heavy metal degree of the water, such as mercury, copper, cadmium, zinc, lead, arsenic, and chrome. The secondone is to identify the source of pollution, and the last one is to identify the potential heavy metal that pollute the water.Composite method was used in collecting the water samples, i.e. in Sekonyer river and the mining location.Water and puya samples were analyzed in Analytical Laboratory of University of Udayana, and then its pollutionindexes were counted, and the quality of the water was fixed based on Third Degree of quality standardized criteria,Government Rule Number 82 Year 2001.The results of the research show that along the Sekonyer river, from upper to lower courses of the river sideswith the following conditions: from the lower course of mining area it was found light pollution with pollution index of 2,51, after puya mine it was found heavy pollution with pollution index of 17,84, up to mid of Rimba Orangutan Eco-Lodge with Sekonyer river estuary there were found light pollution with pollution indexes of 3,71; 4,59; and 2,88respectively, but in the junction of Sekonyer river and Ulin river it was found moderate pollution with pollution indexof 5,13, and in Sekonyer river estuary it was found heavy pollution with pollution index of 16,35.It was also found heavy pollution with pollution index of 16,26 in the inundated water in the puya mininglocation . It was also happened to puya in the mining location that was contaminated by heavy metal of mercury in0,1168 ppm and zinc in 0,195 ppm degrees, whilst in Kumai river, upper side of Kumai quay it was found heavypollution with pollution index of 17,42.From the results of the analysis, it can be concluded that the heavy metals was derived from mining area(Aspai), from the sea and also from upper course of Kumai river. The potential metals as the pollutant were cadmium,zinc, lead, and mercury.

KAJIAN KESESUAIAN KUALITAS AIR UNTUK PENGEMBANGAN KERAMBA JARING APUNG DI PULAU SERANGAN, BALI N.M. Ernawati; A.P.W.K. Dewi
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 10 No 1 (2016)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

The marine water area of Serangan Island has been used for several activities such as aquaculture, captured fisheries, ships transportation, tourism and also area for leachate discharge from Suwung waste area. Those activities resulted in the decrease of water quality which has negative effect on the cage net culture activities, especially that low water quality decrease the immune system of the cultured organisms. So far, the feasibility of water quality for cage net culture activity in Serangan Island has not been identified. The objective of this study is to investigate the water quality and its feasibility for the development of cage net culture activity in that area. This study use descriptive and explorative methods to figure out the actual condition of water quality and its feasibility for cage net culture development in marine water area of Serangan Island. Some measured parameters are water depth, current velocity, temperature, salinity, pH, DO, BOD, Ammonia (NH3-N), oil and lipid content, and lead (Pb). The results show that in Serangan Island marine water area, the water quality range as follow: temperature 26-28 °C; Salinity 23-26,67 ppt; pH 7,4-7,9; dissolved oxygen (DO) 1,5-6 mg.l-1; BOD 6,1-8,2 g.l-1; NH3-N 0,4-0,9 mg.l-1; oil and lipid content <0,1; lead (Pb) cannot detected (<0,0036 mg.l-1); current velocity 0,2-0,6 cm.s-1; and the water depth 5,5 – 9,4 m. Generally, those measured water quality parameters are feasible for marine culture using cage net culture system.

PENGETAHUAN, SIKAP DAN PERILAKU WARGA SEKOLAH MENENGAH ATAS (SMA) NEGERI DALAM PENGELOLAAN LINGKUNGAN DI KECAMATAN DENPASAR SELATAN KOTA DENPASAR I MADE SUARTAMA; I Wayan Suarna; I Nyoman WARDI
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 6 No 1 (2011)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (770.094 KB)

In responding to the policy of The Minister of Environment, The Minister of Education to encourage every school to develop a curriculum based on environment issues as well to develop active participation from everyone involve in the school environment with the aim of to create awareness and willingness in relation to environmental issues. The purpose of this research as follow: to determine the level and the difference in knowledge, attitudes, and behaviors among SMAN that do not implement environment-based curriculum with an environmentalbased curriculum in environmental management in the District of South Denpasar Denpasar City. This research was done through the method of survey with participants citizens SMA. The sample were involving 594 Senior High Students by implementing Proposional Stratified Random Sampling. The sample taken from participants who are receiving education based on a environment curriculum approach which were 208 in total. The sample taken from participants who are not receiving education based on environment curriculum approach were 384 in total. Data was collected by way of questionnaires using Likert Scale with high level proven validity and reliability. Data were analysed using descriptive and comparison methods. The result of this research is shown as followed: 1) The level of knowledge regarding environment issues is higher for those participants who are educated based on environment curriculum approach as compare to those students who have not been influenced by the same curriculum. 2) attitudes and behaviors of citizens in environmental management SMAN not apply the environment- based curriculum tends to be lower (less positive) than citizens who apply based curriculum SMAN environment, 3) There are very significant differences in knowledge, attitude, and behaviour between participants who are educated based on environment curriculum approach as compare to those participants who are not experiencing the same approach in their education. Positive influence and higher awareness of environmental issues are prevalent in those participants who are educated based on environment curriculum.

WILLINGNESS TO PAY WARUNG MAKAN TERHADAP TPS 3R DI DESA BABAKAN KABUPATEN BOGOR Ni Putu Manacika Manupada; Ahyar Ismail; Meti Ekayani
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 13 No 2 (2019)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Babakan is one of administrative villages in Bogor Regency where Institut Pertanian Bogor (IPB) is located. IPB has given social and economic impacts in Babakan that many small-scalled business developed and small-scalled restaurant has the most participators. These small-scale restaurants generate waste everyday and the waste is still managed with end of pipe practice where waste was hauled from collection point to disposal site without any intermediate treatment. Community based waste management with 3R (reduce, reuse, recycle) approach should be proposed to reduce waste at source. 3R Solid Waste Treatment Facilities (TPS 3R) is a facility that focused on reducing, reusing, and recycling waste at source comunally involved active roles from community and goverment. The objectives of this study are (1) Examining level of participation of small-scale restaurant owners if TPS 3R is built and implemented in Babakan. (2) Estimating Willingness to Pay (WTP) of small-scale restaurans owners to TPS 3R implementation planning. The results showed most of small-scale restaurant owners are willing to participate in both sorting waste at source and paying TPS 3R service if TPS 3R is being implemented in Babakan. Average WTP values for TPS 3R is Rp 32,037.04/month and it’s higher than existing rate of waste collection service, which shows small-scale restaurant owners have preference for TPS 3R. Keywords: small-scaled restaurants; TPS 3R; waste management; willingness to pay

STUDI KUALITAS UDARA DI SEKITAR SUNGAI TELAGAWAJA, DESA MUNCAN, KABUPATEN KARANGASEM BALI I WAYAN ARTHANA
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 1
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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The research was done in surrounding Telagawaja River at Muncan Village, Karangasem Regency, Bali at October2008. The aim of the research was to know the air quality condition in that area. There were six air quality parametersmeasured at three different sites. The content of NO2 at the air varied 24,29-31,87 ?g/m3 was higher than that in GunaksaBeach where there are no activities at all but it was lower than that in Sawangan Nusa Dua where full of tourismactivities. The level of SO2 at the range of 34,44-44,97 ?g/m3 was lower than that in Padangbai Harbour where full ofhuman activities and transportations. The content of dust at the range of 105,82 ?g/m3, CO at the range of 497,78-568,89?g/m3, Pb at the range of 0,250-0,792 ?g/m3. The level of noise at the range of 40,33-53,79 dB(A) was lower than that invillage community at Kubu, Karangasem Regency and also lower than that in Sawangan Beach of Nusa Dua. All the airquality parameters are not yet over than standard of safe air quality level.

Pattern Of Perception And Public Participation In The Management Of Household Waste And Waste Banks In The District Of East Denpasar, Bali Province murdiman murdiman; Made Sudiana Mahendra Sudiana Mahendra; I Made Adhika
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Efforts to reduce of waste generated by the community requires awareness, participation and cooperation among stakeholders. Denpasar Government implement strategies to manage waste handling and hygiene can be handled in each region. This step requires the integration between the systems of waste management, legal framework and clear support to be able to walk well, effectively and efficiently. On one hand, the management of solid waste management, especially those involving real role of the community, not separated from the support of government, private sector and society itself. This study was designed using descriptive analysis of qualitative and interpretative. Data was obtained through data collection techniques. Interpretative with reference to the theory and frame of mind, in order to obtain an understanding of the data in accordance with the purpose of research. Data that have been collected from questioner lets further processed and analyzed by using Likert scale and then draw conclusions, resulting descriptive data to observe the household waste management system based Waste Bank in East Denpasar District. In principle, it was observed that the principle of the 3R (reduce, reuce, and recycle) has been applied substantially in the management of household waste bins bank based in East Denpasar District involving the community. The role of the community looked to their participation in the environmental clean-up activities, including composting, bio-pore and willingness to be come a member of waste bank. The results showed that (1) the perception of the community in the management of household waste is categorized as good with an average score of 3,83 (2) community participation in the management of household waste bank-based garbage in both categories with an average score of 3,68, then used as a basis in determining strategies for the management of household waste bank based in East Denpasar District.

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