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All Journal Agrotrop : Journal on Agriculture Science International Journal of Biosciences and Biotechnology E-Journal of Tourism E-Journal Of Cultural Studies Bumi Lestari Ecotrophic, Journal of Environmental Science E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Jurnal Keteknikan Pertanian Jurnal Master Pariwisata (JUMPA) Journal of Degraded and Mining Lands Management Jurnal Sumberdaya Alam dan Lingkungan Jurnal Teknologi Pertanian Jurnal Sains Teknologi dan Lingkungan (JSTL) INTERNATIONAL JOURNAL OF ENVIRONMENT AND GEOSCIENCES Jurnal Penelitian Budaya Jurnal Kepariwisataan: Destinasi, Hospitalitas dan Perjalanan

M. Sudiana Mahendra

Graduate School Of Environmental Sciences, Udayana University, PB Sudirman Street, Post Graduate Building, Denpasar, Bali 80232, Indonesia

Author-ID : 2950082

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Public Health Social Sciences

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ANALISIS PERPUTARAN RADIASI SURYA TERHADAP KINERJA SEL FOTOLISTRIK SEBAGAI ENERGI RAMAH LINGKUNGAN DI NUSA PENIDA KABUPATEN KLUNGKUNG PROVINSI BALI I N. Suastaka; I Gede Mahardika; M.S. Mahendra
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 9 No 1 (2015)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Photoelectric cells is an equipment made of semiconductor material of Silicone (Si14) functioned to catchand converse sun light to become electric energy directly. Through photoelectric phenomenon, that sun lightas particles with frequency/wavelength of certain light can release electrons in a material. This electrons’movement can produce electric current. The aim of this research was to find out the performance of aphotoelectric cells collector in conversing sun light to become electric energy due to the rotation of solarradiation in Nusa Penida.The research was conducted at PLTS electric home solar system Nusa Penida for 5 days the measurementto the parameter of Current (Isc) and Voltage (Vsc). Each measurement had duration of lighting for 8 hourseach from 09.00 until 16.00 Central Indonesian Time, with time interval of 30 minutes. Measurement anddata analysis produced in the research on Saturday, June 29th 2013 obtained: the amount of solar radiationarrived at earth’s outer atmosphere was 1321.90 W/m2, and passed along to earth’s surface at 621.29 W/m2,and received by photoelectric cells collector as heat power at 113.63 Watt, and efficiency produced was 25.3%,and electric power produced was 28.74 Watt, and can be equalized with fossil energy of 0.0237 liter ofgasoline, or equivalent to 106.65 rupiah. It meant that, photoelectric cells collector with area of 50 x 110cm2in a day can protect earth from global warming of 28.74 Watt, in using of fossil energy at 0.0237 liter ofgasoline.The efficient performance of photoelectric cells was still considered small. In order to achieve big capacityof electric power required a lot of collector modules and large area, so that with the growing of semiconductortechnology, it is expected that whenever possible it can reduce electron binding energy on material, andoptimize solar lighting system to photoelectric cells collector modules, so that the efficient performance ofphotoelectric cells can be expected to be above 90%.

MODEL PENGELOLAAN SAMPAH BERBASIS MASYARAKAT DI KOTA DENPASAR Made Armadi; Wayan Suarna; Made Sudarma; Made Sudiana Mahendra; Nyoman Sudipa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 14 No 2 (2020)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2020.v14.i02.p04

Garbage is a problem that must be faced by the community, because garbage is a form of environmental pollution, where garbage can have an impact on public health, such as; odors, floods, destroy aesthetics, fire, greenhouse effect and so on. Household waste management requires active community participation so that the role of the government does not get heavier. Increase community participation in waste management in Denpasar City. In an effort to build the effectiveness of waste management in Denpasar City, it is necessary to develop a community-based waste management model in Denpasar City. The purpose of developing a waste management model is to actively involve the community in managing waste in Denpasar City. This study uses the Interpretative Structural Modeling (ISM) method approach by using elements of the affected community, elements of program objectives, elements of indicators to achieve goals, elements of the main constraints and elements of the institutions involved. In compiling the sub-elements from each element, it involves figures, experts, actors and activists in Denpasar City on community-based waste management. The results of the modeling show that the participatory role of the community is very important in reducing waste through reuse, increasing community involvement and implementing 3R activities. The main obstacle in waste management is the limited facilities and infrastructure for waste management and the unclear waste management organization. Possible changes are that law enforcement and waste regulations must be clear and the involvement of all stakeholders in community-based waste management in Denpasar City. Keywords: model; management; waste; society.

STUDI TINGKAT PENCEMARAN AIR PENCUCIAN KACANG KORO (Vigna unguiculata L) DI SALURAN IRIGASI TIMUHUN DESA NYANGLAN KABUPATEN KLUNGKUNG M Ariasih; M S Mahendra; I G Mahardika
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 3 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Timuhun irigation channel is one of the irigation water sources which is located in the District of BanjarangkanKlungkung Regency of Bali Province which is flowing from its origin at Bubuh River which flows passses three villagesof Bangbang, Nyanglan, and Timuhun villages.The objective of this study was to determine the properties of pollutant of kacang koro as well as to determine theperception of the owner/industry workers and the community at the Timuhun village produced during the washingprocess.This study was conducted from December 2007 to Januari 2008. The sample of the irigation water of Timuhunwas taken from nine locations and the sample of the waste water was taken from three locations. The index of thepollution was calculated and compared to the Governor Regulation Number 8 of 2007 while the community perception onthe waste impact of the kacang koro washing was analyzed using percentage formulae.The finding of the study shows that the pollutant properties of of the waste water have exceeded the maximumlevel of quality standard covering parameters of TSS, COD, BOD5 and ammonia. The pollution of the Timuhun irigationby the waste water from the kacang koro washing is indicated by the high property of the water quality parameter onBOD5 and COD. Based on the pollution index (PI), it was found that the water quality of Timuhun irigation reached amild pollution in all criteria of water quality of class I, class II, class III, class IV except the origin location which is stillin good condition. The perception analysis on the waste water impact showed that the community of Timuhun have a badperception, so the owner and industry workers have a good perception.

SUMBER PENCEMAR YANG MEMPENGARUHI KUALITAS AIR SUNGAI MUMBUL DI KELURAHAN BANJARJAWA, KAMPUNG ANYAR KABUPATEN BULELENG IN SUWIRTA; I.W. Budiarsa Suyasa; M.S. Mahendra
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 7 No 2 (2012)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (992.732 KB)

Sungai Mumbul is one of the potential water resources to be an alternative to meet the need for clean water in particular urban communities in Singaraja (Buleleng) including Banjar Jawa and Kampung Anyar, but its existence need protection from activities in their environment. The objectives of this re.search are: (1) to determine the physical, chemistry, and microbiology of water quality, (2) to determine 1he pollutant load in the sea/ocean, and (3) to determine the activity of people which decrease wate: quality of Sungai Mumbul. The sampling method was purposipe sampling in which the samples were, taken at 5 point.:; Q 0 (source of water), Q1 -out (Kaltag water) with a sampling frequency of once a day every two weeks for one month, On Qout, samples were taken 3 times: in the morning, afternoon and evening. Sampel were analys in laboratory. The results were compared with Bali Governor Regulation No. 8 of 2007 and water quality status of water quality refers to the the Environment Decree No 115 of 2003. Load of pollutants COD rrnc1. BOD s (laboratory measurements). Activities of communities obtained from observations by identifying the number of facilities. The results showed that, in general, water quality parameters of Sungai Mumbul such as temperature, TDS, pH, Sulfate, ammonia, and nitrates were still below the threshold quality standards, while the parameters of COD, BOD5, nitrites, sulfides, oils grease, faecal coliform and total coliform exceeded the quality standard, with quality status categories were polluted, and the total value/score was -30. The use of the residential waste disposal fasilities allowing a lower water quality of Sungai Mumbul the primary channel of 172 units (13:26%), the secondary channel of 426 units (32.85%), tertiary of 396 units (30.53%), and the internal channel of 303 units (23.36%) . Load pollutants that lead to the beach/ sea of Kampung Anyar for BOD 5 indicator was 434,12 kg/day, and COD load of 1,033 kg/day.

KUALITAS BAKTERIOLOGIS AIR MINUM ISI ULANGPADA TINGKAT PRODUSEN DI KABUPATEN BADUNG. Made Partiana; Made Sudiana Mahendra; Wayan Redi Aryanta
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 9 No 2 (2015)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

The presence of refill drinking water in the urban community especially Badung Regency is favored as an alternative of water supply because it cost relatively cheaper compared to water in pacage. The number of samples in this study was 45 outlets with refill drinking water as its study material. The bacteriological examination of the material of study was done on included most probable number (MPN) of coliform and Eschericia coli. The result of refill drinking water investigation bacteriological examination revealed 88.9 % outlets were considered qualified, 11.1 % of them were unqualified because they contained coliform bacteria and one stall had Eschericia coli. The observation hygiene 15.6 % unqualified and sanitation outlets examination 17.8 % unqualified. Correlation test showed no significant relationship between raw materials, equipment, processing, hygiene and sanitation autlets with bacteriological quality of drinking water

PENGEMBANGAN FITOREMEDIASI UNTUK MENINGKATKAN KUALITAS AIR LIMBAH HASIL PENGOLAHAN INSTALASI PENGOLAHAN AIR LIMBAH SUWUNG N.L.P Mahendra Dewi; Made Sudiana Mahendra; I.W. Budiarsa Suyasa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 8 No 1 (2014)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (259.74 KB)

Growing population and tourism activity in Bali Island increases quantity of waste water and resulting in degradation of sanitation quality, especially in the growth centre such as Kuta, Denpasar and Sanur areas. Suwung Waste Water Treatment Plant is one of facility available for domestic waste water in Bali. It needs improved treatment to process domestic waste water before it releases to the environment. Phytoremediation is one of treatment that use plant to coorporate with microorganisms in medium to transform contaminants becoming harmless. This research was conducted from June – August 2012 in Suwung Wastewater Treatment Plant using Taro plant and media form of pebbles and small natural stone. Acclimatized plant was prepared to make sure it can be ascertained and able to grow in tubs processing. Samples were taken 7 times in 24 hours, aiming to know effectiveness of phytoremediation system and to determine the most optimal detention time to reduce concentration of BOD, COD and Amonia. The result showed that treatment with phytoremediation system was effective for the reduction of BOD value with the highest effectiveness value of 84.29%, COD obtained the highest effectiveness value of 78.19% and ammonia got highest effectiveness value of 83.12%. Calculation of most optimal detention time for waste water was 6 hours for BOD, while for COD was obtained after 8 hours and 10 minutes and ammonia was obtained after 8 hours and 9 minutes. Comparison of result of waste water quality with waste water quality standard according to Bali Governor Act Number 8, year 2007, BOD and COD concentration complied the quality standard but for ammonia parameter was above waste water quality standard.

ANALISIS KUALITAS AIR DAN LINGKUNGAN FISIK PADA PERLINDUNGAN MATA AIR DI KERJA PUSKESMAS TABANAN I, KABUPATEN TABANAN I KETUT ARYANA; Made Sudiana Mahendra; I Gede Mahardika
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 5 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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1his research was intended to find out water quality and physical environmental condition in the springs protection in the working area of public health center Tabanan I, regency of Tabanan. 1his assessment was performed by physical, chemical and bacteriological analysis, as well as index of water pollution and physical environmental condition, vegetation and public activity in the environment of water springs protection. 1his research was descriptive qualitative using the method of quantitative approach. The sample was 15 (fifteen) units in February and 15 (fifteen) units in May 2010. The unit was obtained by doing the method of purposive sampling for the water sample. Sample type was a grab sample. The water quality, if compared to the standard of the First quality water Ordinance of Bali Governor No. 8. Year 2007, and the ordinance of the minister of Health republic of Indonesia No. 907 Year 2002, regarding the requirement of the supervision of the quality of drinking water, index of pollution according to the provision of the minister of environment No. 115 Year 2003 as well as physical condition refer to the program of surveillance of quality of clean water general director of the eradication of contagious disease and betterment of living spaces, through sanitation inspection of water source protection. Result of the research showed that there were 1 (one) parameters, they were BOD5 in February and May 2010 over water standard of first quality water ordinance of Bali governor No. 8 Year 2007. Pollution index showed that in February 2010, there was one springs protection with the value of 0 ? IP ? 1 with the status of good condition but the other value was 1 ? IP ? 5 including light pollution. In May 2010, all included slight pollution with the value of 1 ? IP ? 5.

STUDI PENGARUH AIR LIMBAH PEMOTONGAN HEWAN DAN UNGGAS TERHADAP KUALITAS AIR SUNGAI SUBAK PAKEL I DI DESA DARMASABA KECAMATAN ABIANSEMAL KABUPATEN BADUNG N Widya; W Budiarsa S; MS Mahendra
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 3 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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The research was to know the type of pollution which contaminates the waste water of Animals and birds slaughterand to know the level of contamination of river water of Subak Pakel I river from the waste water of animals and birdsslaughter at Darmasaba Village.The research was held in February-March 2008. The sample of waste water was taken at location of cow, pig andchicken slaughter house which was repeated three times. Meanwhile, the sample of river water was taken at the upper course,middle and at the end part of the river with six times repetition. The results of analysis on 12 parameter of the waste water isused to determine typical of pollution and 13 parameter of river water was used to determine pollution index of river waterreferred to Bali Governor Act no. 8 year 2007.The result of the research shows that the typical pollution of waste water from the pig slaughter house was characterizedby high content of ammonia (NH3), and typical pollution of the waste water of chicken slaughter was characterized by highcontent of hydrogen Sulfida (H2S). Intentional or unintentional disposal of the waste water from the animal and poultryslaughter house, had polluted the middle part and the end part of the water river. The level of water pollution in the middle part,was contegorized heavy for first class, second class and third class, but still in slight pollution for fourth class water. Meanwhile,the level of pollution at upper course of water river was still on good category for fourth class water, and still in slight pollutionfor first class and second class of water.

EFEKTIVITAS PENERAPAN AMDAL DALAM PENGELOLAAN LINGKUNGAN HIDUP PADA PEMBANGKIT LISTRIK DI BALI – STUDI KASUS PLTD/G PESANGGARAN Helga Margareta Hunter; Made Sudiana Mahendra; I.G.B. Sila Dharma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 1 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

EFFECTIVENESS OF AMDAL APPLICATIONS IN ENVIRONMENTAL MANAGEMENT ON ELECTRICAL GENERATOR IN BALI - CASE STUDY PLTD / G PESANGGARANThe development and sustainability of power plant’s activity has a positive impact, such as the increased electricity energy which will indirectly boost the economy, but it also has negative impact, such as the rising pressure towards environment. One way to prevent it from damaging environment is to require stakeholders and industry actors to have the environment permit including EIA (Environment Impact Assessment). The objective of this study was to find out the effectiveness of EIA application on power plant on PLTD/G Pesanggaran. This study was conducted with a descriptive qualitative approach which used data from observations, interviews, questionnaires, and literatures. Location of this study was at PLT/D Pesanggaran. The data that were gathered is used to be the base for value determination from valuation categories, so that the value of effectiveness of EIA application in PLTD/G Pesanggaran is subsequently gained. The EIA implementation of PLTD/G Pesanggaran as a whole was sufficient and in accordance with the environmental document. Supervision of RKL-RPL implementation which was done by BLH had been carried out systematically and effectively. The effectiveness value of EIA implementation in PLTD/G Pesanggaran was 94%, which means that the EIA implementation was effective.

VALUASI EKONOMI JASA LINGKUNGAN EKOSISTEM HUTAN TAMAN EDEN 100, DESA LUMBAN JULU, PARAPAT, SUMATERA UTARA Ivany Gresya Saragih; Made Sudiana Mahendra; I Made Sudarma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 13 No 2 (2019)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Eden 100 Forest Park is an ecotourism area that has the potential of natural resources that can be used as tourist attractions. Forest Park Eden 100 also provides environmental services such as hydrological forest services, forest services as carbon sinks, and forest services in producing timber and non-timber goods. This study aims to find out what environmental services are provided by the Eden 100 forest and to analyze the economic value of environmental services and the obstacles and challenges faced by managers in efforts to preserve forest ecosystems. The results showed that the Eden 100 Forest Park provides environmental services in the form of direct use environmental services, namely wood production with economic value of the economic value of wood production of Rp 7,822,633,800 and non-wood (fruits) of Rp 25,500,000, non-use value directly in the form of natural landscapes (ecotourism) whose value is calculated using the travel cost method (TCM) and a yield of Rp 1,164,181,800 is obtained, non-use value in the form of existence services whose economic value is calculated using the contingent valuation method (CVM) of Rp.60,158,120 , as a carbon sink value which is calculated using the allometric method, and a yield of Rp. 18,161,220,000 is obtained. From the results of this study, it can be concluded that the total economic value of the Eden 100 Forest is Rp. 27,233,693,720. This proves that the existence of the Eden 100 forest is a very big economic benefit if its sustainability is maintained because it can absorb carbon which gives a great economic value. Efforts to manage and preserve Eden Forest Park 100 as a tourist attraction have been carried out in an integrated manner with the government, private sector and local communities, but need to be increased so that forests can provide environmental services in a sustainable manner.

Co-Authors A. A. A. WULANDIRA SAWITRI DJELANTIK A. A. Sri Mahyuni A.A. GEDE PUTRA Abd. Rahman As-syakur Adinda Marsha Anugrah AGUS MULIADI PUTRA, AGUS MULIADI ANAK AGUNG GEDE SUGIARTA Anak Agung Putu Agung Suryawan Wiranatha Anugrah, Adinda Marsha Ary Poppo Dewa Ngurah Suprapta Dharma, IGB Sila ERNIA DESRIATI HUTAJULU Gertrudis Vebriyanti Kahar Helga Margareta Hunter I Dewa Gede Agung Pandawana I G. R. M. TEMAJA I Gede Mahardika I Gusti Agung Ayu Rai Asmiwyati I Gusti Ayu Kunti Sri Panca Dewi I Gusti Bagus Sila Dharma I K PUTRA I Kadek Adiana Putra I KETUT ARYANA I Ketut Sundra I Komang Tri Sumandiarta I Made Adhika I MADE ADNYANA I Made Sara Wijana I MADE SUDARMA I Made Sukewijaya I MADE SUPARTHA UTAMA I N. Suastaka I Nengah Sudipa I NYOMAN GEDE ASTAWA I NYOMAN RAI I Nyoman Sucipta I Nyoman Sudipa I Nyoman Sunarta I Nyoman Wardi I W BUDIARSA SUYASA I W. Arthana I Wayan Adiputra Gunawan I Wayan Arthana I Wayan Diara I Wayan Redi Aryanta I Wayan Sandi Adnyana I Wayan Suarna I WAYAN WINDIA I.B. Sudana I.P.G. Ardhana I.W. Budiarsa IDA AYU MAYUN Ida Bagus Gde Pujaastawa Ida Bagus Komang Mahardika Ida Bagus Pujaastawa Ida Bagus Putu Gunadnya IN SUWIRTA Indra Bhaskara, Gde IPG Ardhana Ivany Gresya Saragih K Agung Sudewa Kakuji Ogawara Komang Ardana Komang Arthawa Lila Luh Komang Sulasmini Luh Made Suriwati M Ariasih M. FAIRUZ ABADI, M. FAIRUZ Made Antara Made Antara Made Armadi Made Partiana Made Sudarma Made Sudarma Mahyuni, A. A. Sri Maria T. Indarwati murdiman murdiman N Widya N. O. Tridjaja N.ANOM PURWA WINAYA N.L.P Mahendra Dewi NI LUH WIDYASARI Ni Made Setiari Ni Wayan Ana Pradnya Dewi Nita Elyazar Nixon Rammang, Nixon Nyoman Sugiartha Nyoman Sutresni Olivia Grace Brigitta Florencia Putri, Iswahyuni Hartanto Putu Aryastana RIAN AZZUMAR Rindang Dwiyani SUCIKA ARMIANI, SUCIKA Syamsul Alam Paturusi Takahiro Osawa Takahiro Osawa Takahiro Osawa Takahiro Osawa Tasuku Tanaka Tasuku Tanaka Tasuku Tanaka Utari Sterla Tibuludji UYUN FITRI MALINDA W Budiarsa S Wahyu Ning Tyas Wayan Redi Aryanta Wayan Sandi Adnyana Yohanis Umbu Kaleka, Yohanis Umbu YONATHAN CHRISTIAN SIMATUPANG

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