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PENETAPAN DAYA TAMPUNG BEBAN PENCEMARAN SUNGAI BADUNG DI DESA PEMOGAN Made Santiari; I Wayan Nuarsa; I Wayan Budiarsa Suyasa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 10 No 2 (2016)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.22 KB) | DOI: 10.24843/EJES.2016.v10.i02.p10

Abstract

The water quality of Badung River in Pemogan village has exceeded the threshold limits.Therefore, It is needed to determinate the carrying capacity of Badung River. The determination of carrying capacity is very useful to control the disposal of waste into the Badung River. The objective of this study were to determine the sources of pollution, pollutant load and load capacity of Badung river at Pemogan village. Determination of pollutant source done with looked for land use and types of activities along the Badung river Pemogan village followed by field inspections. The pollution load was determined by multiplying the concentration of water quality and flow rate, while the carrying capacity was determined with the help of the program Qual2Kw ver 5.1. Determination of load capacity with Qualk2Kw ver 5.1 has several step such as data collect, the data entry process, calibration, verification and simulation according to the scenario. The result of this study showed sources of pollution that cause a decrease the water quality of Badung river in Pemogan village were non point source (agriculture and settlements) and point source (flow from upstream). The pollution load that flow into the Badung river in Pemogan village for BOD, COD and TSS respectively 419,97 kg/ day; 865,66 kg/day dan 160,70 kg/day. Load capacity of Badung river for COD and TSS were 1686.53 kg/day dan 4743.36 kg / day, Meanwhile, the load capacity of Badung River for BOD has overlimits.
POTENSI ENERGI LISTRIK YANG DIHASILKAN DARI EMISI GAS METANA DI TPA SUWUNG PROVINSI BALI Putu Dian Paramitha Dewi; I Wayan Suarna; I Wayan Budiarsa Suyasa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (185.423 KB) | DOI: 10.24843/EJES.2017.v11.i02.p04

Abstract

Waste is one source of greenhouse gas emissions (GHG) that has methane gas form which caused an early multi-dimensional, massive and complex problems. The rapid increase of garbage volume entering landfill, annually result a high garbage dumps in the Suwung Landfill area. It should have been considered a handing solution for example by converting the methane gas content in the waste into a useful value added product. The objective of this research is determining the amount of electrical energy that can be produced through methane gas emission at Suwung Landfill. The characteristic and composition of waste could give effect to the formation of methane emissions. The research on the composition and characteristic of waste were done by sorting 1 m3 of garbage sample from new garbage entering landfill. Garbage is divided based on the source of DLHK waste, market waste, and private waste. The volume of waste that went to Suwung Landfill in 2016 calculated 1.296.438 m3 which was dominated by organic waste (78,1%). The density of the waste that went into Suwung Landfill, based on the research's results, amounted to 135,09 kg / m3, there fore could be assumed that the weight of waste that went to Suwung Landfill in 2016 was 175.135,81 tons. Based on these data, the number of 136.785,13 tons of waste, which was organic waste, could increase the concentration of greenhouse gases in the atmosphere if this situation does not manage properly. Gravimeter method is using for measures the dry matter content value of waste. From the measurement, the results obtained the waste components that have the highest dry matter content is from rubber and leather garbage (76,52%) while the lowest dry matter is food waste (19,13%). By using calculations based on IPCC 2006, it was found that the amount of methane emissions could be generated by the waste at the Suwung Landfill in 2016, amounted to 3.535,06 tons. Based on the energy equivalence table, the electrical power that is generated from the potential methane emissions at the Suwung Landfill is 6,66 MW. Keywords: waste composition, waste characteristics, methane emissions, ipcc2006, electrical power.
TINGKAT KERUSAKAN DAN STRATEGI PENGELOLAAN TAMAN HUTAN RAYA “PROF. IR. HERMAN JOHANNES” DI DESA KOTABES KECAMATAN AMARASI KABUPATEN KUPANG NTT Nixon Rammang; M. S. Mahendra; 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

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Abstract

Prof. Ir. Herman Johannes Forest Park has suffered a serious damage from illegal logging and other destructives activities. This condition is worsened by lack of law enforcement and awareness on the importance of forest for the community. This study aims to determine level of damage from illegal logging, and formulate strategies to sustainably manageon the Prof. Ir. Herman Johannes Forest Park. Public perception was obtained by administering questionnaires and interviews through a purposive sampling method. The level of damage from illegal logging was assessed through identificationand measurement of damaged locations.SWOT analysis was used to formulate the management strategiesbased on identification of internal and external factors. Findings revealed that 5% of Prof. Ir. Herman Johannes Forest Park were damaged caused by illegal logging. The management of the Forest Park was challenged by illegal logging, forest encroachment, timber extraction for household use, slashing and burning practices, poor spatial planning, ineffective institutional arrangement, wildlife poaching, illegal grazing,and inadequate facilitates and staffs capability. In addition, there was lack of community involvement in the forest management. Aspects that appeared to require the most attention to improve the Forest Park includes consolidation of status and functions of the Forest Park, enhancement of surveillance and enforcement, improvement of the management effectiveness by establishing special division to manage the Forest Park, improvement of staffs capacity and infrastructures, rehabilitation of the damaged area, improvement of awareness to the impact of deforestation, and involvement ofindigenous and local communities on the Forest Park management (i.e. community-based forest monitoring, application of local wisdom in the forest management, community empowerment and economic development).
BIODEGRADASI ZAT WARNA REMAZOL YELLOW FG DALAM SISTEM SUSPENSI AKTIF Rosalia Gosal; I Wayan Budiarsa Suyasa; GAM Dwi Adhi Suastuti
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 12 No 1 (2018)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (292.271 KB) | DOI: 10.24843/EJES.2018.v12.i01.p05

Abstract

Remazol Yellow FG is used in the textile industry in the process of dyeing and chromatic system. The waste of Remazol Yellow FG is dangerous for ecosystem and human health if it is thrown into the environment. This research was conducted the application of waste execution that is biodegradation of Remazol Yellow FG dye in activated suspension. The aim of this research are : 1) to obtain the optimum time of microorganisms growth of sediment which taken from mangrove ecosystem of Serangan area, 2) to determine the optimum composition in declining the rate of Remazol Yellow FG waste, 3) to determine the rapid of Remazol Yellow FG rate decline, 4) to know effectivity and microbial system that play role in biodegradation process. The textile waste used in this research was artificial waste from Remazol Yellow FG dye with concentration of 49,126 mg / L. In the first phase, it observed the growth of microorganisms which is determined by determining the highest value of VSS (Volatile Suspended Solid) as the optimum time of bacteria capable of degrading Remazol Yellow FG. Furthermore, using the optimum time, the optimal composition is determined by observing the decrease levels of Remazol Yellow FG. The rate of decrease observed from the decreased levels of Remazol Yellow FG in biodegradation process for 7 days. The effectivity obtained from percentage of Remazol Yellow FG levels contained at the time of processing. Besides, there was an identification of microorganisms that take a role in biodegradation process of Remazol Yellow FG. The results showed that 12 hours is required to obtain the optimum time of microorganism growth with highest value 28000mg/L of VSS after added into means containing the Remazol Yellow FG. The optimum composition in decreasing Remazol Yellow FG rate were composition I consisting of 900 mL glucose, 1950 mL Remazol Yellow FG waste, and 150 mL suspended grown that can reduce levels of waste from 49,126 mg/L to 34,573 mg/L. Decreased levels of Remazol Yellow FG with anaerobic-aerobic treatment for 7 days decreased from 49,126 mg / L to 3,6039 mg / L and has 92,66% effectivity. The identified bacteria and take dominant role in the process of biodegradation are Bacillus sp, Coliform, Pseudomonas sp and Staphylococcus sp. Observation number of colonies in the early processing as amounted 2,84x102 CFU / mL, in the middle of processing time at 1,24 X102 CFU / mL, and at the end of biodegradation processing of 2,08x102 CFU / mL.
TINGKAT KANDUNGAN UNSUR RADIOAKTIF AIR SUNGAI AYUNG DI DENPASAR BALI Dewa Nyoman Alit Ardana; I Wayan Budiarsa Suyasa; I Ketut Sundra
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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Abstract

Ayung river is one of the longest rivers in Bali. The upstream of the river is in regency of Bangli, Badung, Buleleng, Tabananand downstream is located in Padang Galak beach, East Denpasar Sub-regency. As the sample of the study, the water of the river wastaken from the stream entering the city of Denpasar. The sample was taken in five different points and for each point was taken twice. Thefirst was taken at 5 p.m, and the second was at 6 a.m. This study aims at finding out the rate of radioactive content of Ayung river water inthe city of Denpasar.The water sample was analyzed in Radiometry Analysis Group of Radiation Physics and environmental research centre andNuclear Technique Development, Jalan Taman Sari 71 Bandung – 40132. The process of counting was conducted in this place in order toknow the rate of the element activities and then identification of elements contens in the sample. The result of the counting and identifyingwas compered with standard grade of radioactivity in the area.The element of identification result and the amount of activity rate found showed that the element were natural radioactiveelements, the content: 40K (Kalium-40), 234Th (Thorium-234), 233Th (Thorium-233), 228Ac (Actinium-288), 114mIn (Indium-114m). Thehighest activity of radioactive elements in each sample point: in E2 point content element 40K with the activity 2.08 Bq/lt, in point A1 234Thwith the activity 16.34 Bq/lt, in point E1 containts 233Th with activity 598.29 Bq/lt, in point E1 and E2 contain 228Ac with the activity939.63 Bq/lt. The height of activity value of the counting and identifying elements was still under the rate of the highest level.The result of the study showed that radioactive elements 40K had the tendency of increasing radioactivity. The same thinghappened to 233Th at the peak of energi 185.00 keV. The content of its radioactive tends to exist in each point of sample point and theactivity tends to increase. Though the rate of radioactivity content was still under the highest permitted level (1x104 Bq/lt for 40K and7x102 for 233Th) bu the case needs to be watched out that the dangerus grade pollution would take place.
BIODEGRADASI REMAZOL BRILIANT BLUE DALAM SISTEM BIOFILTRASI VERTIKAL DENGAN INOKULUM BAKTERI DARI SEDIMEN SUNGAI MATI IMAM BONJOL DENPASAR Luh Putri Kriswidatari; I W Budiarsa Suyasa; I Made Siaka
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 1 (2017)
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.2017.v11.i01.p02

Abstract

BIODEGRADATION REMAZOL BRILLIANT BLUE IN VERTICAL FILTRATION SYSTEM WITH INOKULUM BACTERIA FROM DIED SEDIMEN RIVER IMAM BONJOL DENPASARThe biodegradation research of Remazol Brilliant Blue (RBB) has been done in vertical biofiltration systems with bacterial inoculum that had seed from soil Mati River Imam Bonjol Denpasar. This aims of research are to obtain the best active suspension grown from soil samples of Mati river sediment and to determine the magnitude of the effectiveness and capacity of biosystem . The artificial waste water of RBB has made with a concentration of 200 mg/L. In the first phase, the best active suspension is obtained by determining the value of VSS ( Volatile Suspended Solid ) is the highest as a source of inoculum of bacteria capable of degrading RBB. While the second phase, the effectiveness and capacity of biosystem is obtained by determining the levels of waste of artificial RBB vertical biofiltration system (biosystem). Biofilm has made with attached bacteria consortium in volcanic rock for 7 days. RBB subsequently incoporated into it to determine the concentration of it and to determine the effectiveness and capacity and identified the bacteria contained in biosystem. The results showed the best sludge active from soil sediments of the Mati River Imam Bonjol Gang Keladian with a value of Volatile Suspended Solid (VSS) highest of 17200 mg/L when the sreeding time of 48 hours. The results of processing using biosystem known to decreased when the processing time from 6 hours up to 114 hours, from concentration of 200 mg/L to 19.6211 mg/L. Then the prosses has increased again into 19.8209 mg/L at the time to 120 hours. The highest effectivity of biosystem to degrading remazol brilliant blue of 90.19 % for 114 hours , while the highest capacity is obtained from the biosystem is 1.6525 x mg /g for 114 hours. The bacteria that act to decreased identified as Pseudomonas sp., Aeromonas sp . and Plesiomonas sp, with Pseudomonas sp more dominant in the degrading of dye RBB. The value of the colonists before degradation of 7.2 x CFU/gr and the value after the degradation of 2.6 x CFU/gr.
PENGARUH NILAI OKTAN BAHAN BAKAR DAN PUTARAN MESIN PADA KENDARAAN BERMOTOR TERHADAP KARAKTERISTIK EMISI GAS BUANG I P Sastra Negara; I W Budiarsa Suyasa; I W Suarna
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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The air pollution that is occurring currently is main by caused by the use of motor vehicle that consequently it lead to the increasing fuel consumptions as the main source enrgy for transportation equipment. The fuel that is used in the vehicle comes in several types. In the market its differences show by the octane numbers that can contribute different effect to the environment due to their combustion processes. The road conditions through which the vehicles move are the major factors that can trigger the growth of pollution to the surrounding. It is predicted that about 70% of the air pollutions is caused by the motor vehicle emissions.This research was fully conducted in the laboratorium. Three types of fuel with different octane numbers were used in this research. Premium with octane number 88, Pertamax with octane number 92, and Biopertamax with octane number 91. The engine speeds were also varied from 500 rpm, 1000 rpm, 1500 rpm, 2000 rpm, 2500 rpm, 3000 rpm, 3500 rpm, to 4000 rpm. For every type of fuel, the engine was run five times for every engine speed in order to obtain the exhausted gas characteristics from the vehicles to the environment.The result of the research shows that at engine speed of 2500 rpm the CO emission for each type of fuel : Premium with octane number 88 is 0,415%, Pertamax with octane number 92 is 0,556%, and Biopertamax with octane number 91 is 0,273%. The octane number also effects the CO2, HC, and NOx emissions in small quantities. Statistical analysis shows both the engine speed and the octane number contribute significant effects on the exhaust emissions, the CO and HC emissions provided negative effects, while the CO2 and NOx emissions get positive effects. In comparisan to with the vehicle speed on the road from secondary data to represent the engine speed in the laboratorium, and assuming that the traffic density is identical to a factor that determining engine speed, it can be concluded that the air pollution by CO emission due to the characteristics of the road has negative influence.The octane number of the fuel and the engine speed gives a significant effect. The traffic density and the road conditions can trigger the level of the concentration of CO gas as pollutants to the surrounding air.
EFFECTIVENESS OF BIOFILTER MADE FROM PLASTIC WASTE TO DECREASE BOD, COD AND AMMONIA OF HOSPITAL WASTEWATER Putu Sri Juniarta; I Wayan Budiarsa Suyasa; IGB Sila Dharma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 12 No 1 (2018)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (228.128 KB) | DOI: 10.24843/EJES.2018.v12.i01.p01

Abstract

This study aims to determine the influence of biofilter made from plastic waste to decrease BOD, COD and Ammonia content and to determine the efficacy of its use to decrease BOD, COD and Ammonia content from the hospital’s wastewater. This study utilized aerobic biofilter processing through a batch system. Variables used in this research are wastewater processing through biofilter media made from plastic waste and processing without biofilter media, with 36 hours retention time. The parameters are BOD, COD and Ammonia content. From the statistical analysis, the use of biofilter media made from plastic waste gives a significant effect to decrease BOD and Ammonia content but made no significant effect to decrease COD. Plastic waste biofilter processing system is very effective to decrease BOD (84,85%), less effective to decrease COD (31,73%) but effective enough to decrease ammonia (50,60%), meanwhile, the standard quality of plastic waste biofilter processing system is effective to reduce BOD and COD content but not effective to reduce the ammonia content after 36 hours of processing time. Further research is needed to study the efficacy of biofilter media made from other type of plastic waste. Moreover, a combination of anaerob-aerobic biofilter processing is required to improve processing efficacy. Keywords: biofilter; plastic waste; hospital wastewater; BOD; COD; ammonia
PENGARUH KANDUNGAN MINYAK DAN DETERJEN DALAM AIR CAMPURAN BETON TERHADAP KUAT TEKAN IM TAPAYASA; IW. BUDIARSA SUYASA; IMD. ADHIKA
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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Abstract

The concrete represent materials/rock that is yielded by mixing smooth aggregate (sand), harsh aggregate (gravel), water andportland cement according to Regulation of Reinforced Concrete Indonesia (PBI) 1971 NI-2. Detergent concentraton (LAS) andDiesel fuel, LAS + Diesel fuel was added in each treatment of 0%; 1 ; 2,5 ; 5% to mixed water until attain minimum standard ofdepress strength according to SNI. From result of research revealed that content of LAS 0,3 % aftarned depress strength concreteequal to 23,578 Mpa at 7 day and 28,654 Mpa at 28 day according to minimum requiretment of SNI with ercentage equal to 90,24 %and 89,67 %. With Diesel fuel content 5 % afterned depress concrete strength equal to - 23,536 Mpa at 7 day and 28,717 Mpa at 28days according to minimum requitement of SNI with percentage equal to 90,08 % and 89,87 %. With mixture content of LAS andDiesel of fuel 0,2% afterned depress concrete strength equal to 23,610 Mpa at 7 days and 28,698 Mpa at 28 days according tominimum reqirement of SNI with percentage equal to 90,36 % and 89,81 %.
ANALISIS LINGKUNGAN PERAIRAN UNTUK ZONA PENGEMBANGAN BUDIDAYA LAUT DI TELUK GERUPUK KABUPATEN LOMBOK TENGAH AGUS MULIADI PUTRA; I.W. Budiarsa Suyasa; M.S. Mahendra
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 7 No 1 (2012)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

This research aims to identify the water suitability and carrying capacity level based on marine culture activity used. The research treated on May to July 2011 at Gerupuk Bay, Subdistrict of Pujut, Central Lombok Regency. The methods used in this research are analyzing the parameter, processing the data, and analyzing the data based spatial named Geographic Information System (GIS). This analysis proves that Gerupuk Bay might be used as marine culture development area with total area 339,768 Ha. Highly suitable area with 60,343 Ha, is for seaweeds area. For grouper fish most of the area is marginally suitable area with 99,198 Ha, for moderately suitable is 68,105 Ha and for unsuitable area found is 112,122 Ha. After identifying the data, the total maximum carrying capacity area for seaweeds activity is 8 units for long line which 7 units (87,5%) have been used, and 18 units for floating raft method which 10 units (55,5%) have been used. The maximum total unit for the grouper fish is 26 units for net floating cages method whlch only 1 unit (4%) has been used. Finally, the conclusion of U1is research is that the water environmental for each marine culture activity is less then 50% of all area. For lhe estimation of the maximum carrying capacity of grouper fish is less then 50%, in other hand the maximum carrying capacity of seaweeds is up to 50%.
Co-Authors A. A. Bawa Putra Adalgisa D.D.G. Alvares AGUS MULIADI PUTRA, AGUS MULIADI Ahmad Zakir Anak Agung Gede Agung Satrya Dwipayana Atita Arli Tiara AWANG ERRY SOFYAR IRAWAN Bejo Slamet Cok Istri Putri Kusuma Kencanawati D. Rizkiyanti Desak Putu Risky Vidika Apriyanthi Dewa Nyoman Alit Ardana Dini Imanniar dody setiawan Esti Arisetya Dewi Febby Hartesa W Gede Adi Wiguna Sudiartha Hanung Adi Nugroho I .G. P. Agus Suryawan I G. A. K. S. P. Dewi I G. M. A. P. Raharja I Gede Mahardika I Gusti Ayu Kd Ravika Sugianthi I Gusti Ayu Kunti Sri Panca Dewi I Gusti Bagus Sila Dharma I Gusti Ngurah Bagus Parasara I K. G. Antara i kadek ardi putra I Kadek Sutomo Putra I Kadek Widiantara I Ketut Adi Sugita I Ketut Berata I Ketut Sundra I Komang Gde Bendesa I M. G. Sudyadnyana Sandhika I M. Siaka I Made Adhika I Made Siaka I MD KARDA I Nengah Simpen I Nengah Wirajana I Nyoman Artabudi I NYOMAN RAI I Nyoman Sudipa I Nyoman Suprapta Winaya I P Sastra Negara I Wayan Arthana I Wayan Diara I Wayan Gede Gunawan I Wayan Jana I Wayan Januariawan I Wayan Kasa I Wayan Nuarsa I Wayan Sandi Adnyana I Wayan Suarna I Wayan Sudiarta I WAYAN WINDIA I WY. G GUNAWAN I. M. S. Negara I.A.M. Trisnawulan I.G.A.M. ARYASIH Ida Ayu Alit Laksmiwati Ida Ayu Ary Pramaswari IDA AYU ASTARINI Ida Bagus Gede Darmayasa IK Sudibia IM Suyana Utama IM TAPAYASA IN SUWIRTA Iryanti Eka Suprihatin J. B. Butler James Sibarani K. Swandiyasa K. Yogi Purnamawati K.G. Darma Susila Kadek Diana Harmayani Ketut Gede Suryawan Luh Putri Kriswidatari M. FAIRUZ ABADI, M. FAIRUZ M. Sudiana Mahendra Made Arsawan Made Rahayu Kusumadewi Made Santiari N. NGR. ADISANJAYA N.K. Mardani N.L.P Mahendra Dewi Ni G. A. M. Dwi Adhi Suastuti Ni Ketut Suwiti Ni Komang Ayu Septiani Ni Komang Lia Wahyuni Ni Luh Gede Sudaryati Ni Luh Putu Mega Priantari Ni M. Indra Wahyuni Ni Made Indra Wahyuni Ni Made Setiari Ni Made Tia Juliasari Ni Putu Diantariani Ni Putu Giyan Adnya Antari Nixon Rammang NPG Suardana P. D. S. Udayani Pradnyadari, I Gusti Ayu Lia Putu Dian Paramitha Dewi Putu Primantari Vikana Suari Putu Sri Juniarta Rosalia Gosal Sang Ayu Sri Satya Laksmi Utari Shinta E. Maharani Sophia Maria Oliva Lau Sri Dian Meita Sari Sri Wahjuni Suko Ismi Supardiono Supardiono Syamsul Alam Paturusi Takahiro Osawa W. Gina Anggreni Wahyu Dwijani Wahyu Dwijani S. Wahyu Dwijani Sulihingtyas Wayan Trisna Dewi Widya Sari Y. P. Mau Yan Ramona Yenni Ciawi Yohanis Umbu Kaleka, Yohanis Umbu