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All Journal CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Jurnal Kimia (Journal of Chemistry) PIRAMIDA Buletin Udayana Mengabdi Jurnal Energi Dan Manufaktur Bumi Lestari Ecotrophic, Journal of Environmental Science SIMBIOSIS International Journal of Engineering and Emerging Technology Jurnal Media Sains INTERNATIONAL JOURNAL OF ENVIRONMENT AND GEOSCIENCES Cassowary INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY

I W BUDIARSA SUYASA

Program Studi Kimia FMIPA Universitas Udayana, Bukit Jimbaran, Bali-Indonesia

Author-ID : 243987

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology

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PENURUNAN KADAR RHODAMIN B DALAM AIR LIMBAH DENGAN BIOFILTRASI SISTEM TANAMAN K. Yogi Purnamawati; IW. Budiarsa Suyasa; IG. Mahardika
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 textile industry is growing rapidly and as the result it’s producing waste that can harm the environment. One of which is rhodamine B. Rhodamine B is a synthetics dyes that have a form crystalline which an organic base containing amino groups, so it is difficult to degrade naturally by microorganism. Biofiltration system method is one of many ways in handling wastewater. Layered filtration unit of sand and rocks combine with the adsorption of plant and decomposition by microorganisms in rhizosphere so that wastewater can be reused. The aim of this study determined effectiveness and capacity of biofiltration system vegetation in reducing concentrate of rhodamine-B, total dissolved solid (TDS), total suspended solid (TSS) and the pH in wastewater. The result showed that biofiltration effectiveness in reducing rhodamine B, TDS and TSS concetrate were 51,70%; 47,60%; 50,44% while decreasing and stabilization of pH obtained at 30 hours treatment time with pH value is 7,5. Capacity of biofiltration system vegetation with volume 0,06 m3 can reduced rhodamine B, TDS and TSS by 0,2256 ppm; 278,0237 ppm and 9,4978 ppm respectively, while the optimum detention time of wastewater in the biosystem for reducing rhodamine B was 30 hours and for TSS and TDS was 36 hours. It can be concluded that biofiltration system vegetation was able to reduce rhodamine B, TDS, TSS and pH of wastewater

STUDI DAMPAK PERKEMBANGAN PEMBENIHAN IKAN LAUT TERHADAP PENURUNAN KUALITAS LINGKUNGAN DI KECAMATAN GEROKGAK KABUPATEN BULELENG Suko Ismi; I Wayan Arthana; I W. 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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The purpose of this research is to investigate influence of marine fish hatchery to degradation environmentalquality in Gerokgak District, measurement was done through physical, chemical and microbiologycal analysis.Thesample was taken from 17 stations well water, and 8 stations sea water with 2 stations coming from water discard marinefish hatchery of Gondol Orchard. Data analysis of wells water to campare with water quality standart category I and seawater comparing with the live for animal sea water according to Regulation of The Governor Bali No. 8 Year 2007. Seawater pollutan level was counted through index of diversity and integrated score, to know the resemblance physical andchemical caracteristic among station was analysis by cluster.Result of the research indicates that some parameters of wells water have passed standart water quality namely :Salinity, BOD5, nitrit, phospat, iron , mangan, copper, zink, cobalt, cadmium, dan bacteria coliform feces content. Clusteranalysis wells water if we classify into 3 groups namely first group station 2, 4, 5, 8 until 17, the location of wells 2, 4 and5 near for hatcheries but have resemblance caracteristic with wells far for hatcheries that is station 8-17. Second groupstation 3, 6 and 7 have location near hatcheries and third group station 1 only near hatcheries location. Nearness betweenstation on one group caused resemblace caracteristic, although different wells distance. Parameters sea water have passedstandart water quality namely : nitrat and phospat. Can be found 21 genus plankton from 6 phylum with composition 61%Bacillariophyta, 5% Cyanophyta, 10% Protozoa, 5% Ctenophora, 14% Arthropoda. Index diversity (H’) 0.078 – 1.968 itindicates about medium to high pollution, index uniformities (E) 0,033 – 0,473 its means that uniformities low tomedium, index domination (C) 0,167 – 0,974 it’s meaning have domination partial of plankton a low until high. Integrated score rate have value 4,63 – 6,25 the meaning is water have a medium until heavy of pollution. Cluster analysissea water if it is classified into 3 groups namely first group that is station 1 until 5 that in coastal area with direct watercoming from discard water marine fish hatchery different caracteritic with second group station 6,7 and 8 this area farfrom the beach, next third group B1 and B2 this station water discard from marine fish hatchery.

ANALISIS KARAKTERISTIK KANDUNGAN PENCEMAR AIR LIMBAH DAN PROSES PENGOLAHAN AIR MINUM KABUPATEN BADUNG AWANG ERRY SOFYAR IRAWAN; I.W. Budiarsa Suyasa; I Wayan Suarna
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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Installation of water treatment is the required infrastructure in meeting the needs of clean water. During the process of water treatment it produces waste water as a byproduct that could potentially cause pollution if not properly treated. The research purposes of the study are to determine the effectiveness of compliance procedures for waste water treatment, the quality and quantity of waste water and its impact to the environment, as well as providing alternatives for waste water management strategies. Determination of samples were conducted by using purposive sampling method. Samples were taken at two sewer sedimentation and filtration points antl the other four points were taken in the water body and then compared with Governor of Bali Regulation No.8 year 2007. Samples were analywd both in situ and in the laboratory. To determine the effectiveness of the waste water treatment to the conformity assessment procedures, the field conditions were analyzed with a force-field analysis. The effectiveness of waste water management was categorized as moderate. The quality of waste water from the sedimentation basin shows the parameters of TSS (4957.50 mg/I) and Mn (81.68 mg/I), of the tub filtration TSS (665 mg/I) and Mn (12.60 mg/I). The quantity of waste sedimentation basin discharge (Q) o.68 mg/sec, TSS pollutant load (3371.01 mg/sec), Mn (55.51 mg/sec), filtration basin discharge (Q) o.68 mg/sec, load TSS pollutant (332.50 mg/sec), Mn (6.30 mg/sec). Based on the force-field analysis conducted, some alternative strategies were proposed such as building facilities for waste management, environmental m.inagement implementation based on the appropriate planning, implementation of waste water disposal permit including fulfill the technical conditions as required, technical capacity building of human resources, and land use.

KEMAMPUAN SISTEM SARINGAN PASIR-TANAMAN MENURUNKAN NILAI BOD DAN COD AIR TERCEMAR LIMBAH PENCELUPAN I W. Budiarsa Suyasa; Wahyu Dwijani
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 2 No 1
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Colored of clothes has developed as concentrated in Denpasar area. The process has a negativeeffect because of waste, the resulting organic toxicants and heavy metal into aquatic system. The effect ofthe pollution including the river, well water and organism that live there. The research of bioremedialeffectiveness of herb-sand treatment system on laboratory simulation were studied in Denpasar, from June2004 to September 2004.For laboratory simulation, the plants were cultured in 25 cm sand bed, in between 5 cm palmfiber ofwhich were in between 10 cm pumicestone for the top and 5 cm gravel for the bottom with surface area of 25x 50 cm2.The result of treatment system showed that effective for decrease biological oxygen demandcompared to those of chemical oxygen demand parameters. The treatment system reduced significantly BODlevel respectively to 13,15 for 3 days, 11,19 for 10 days and 5,79 for 20 days with 85,55 – 93,63 effectively.While COD level respectively to 76,68 for 3 days, 61,38 for 10 days and 58,57 for 20 days with 42,78 – 56,50effectively. Time of treatment for 3, 10 and 20 days showed a little increase of pH from 6,87 to 7,00.

PEMANFAATAN BIOSISTEM TANAMAN UNTUK MENURUNKAN KADAR FENOL, AMONIA, ION KLORIDA, DAN COD DARI PROSES BIODEGRADASI AIR LIMBAH YANG MENGANDUNG RHODAMIN B Sri Dian Meita Sari; Wayan Budiarsa Suyasa; I Gede Mahardika
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 biodegradatio nof Rhodamine B may not be directly result in CO2 and H2O, rather other pollutans such asphenol, ammonia, and chloride ions. The objective of this research are to determine the effectivity of thebiosys templants indegradating Rhodamine B and the capability to reducethe contents of phenol, ammonia, chloride ionsand COD.Concentration artificial waste Rhodamine B that used in this research are 1 mg/L. Seeding sediment using microorganism selected from dyeingwaste disposallocated in the village Pemogan, South Denpasar than disseminated into a bath biosystem in which hadgiven thesand, pebbles and Ipomeacarssicaulis. Furthermore artificial waste Rhodamine B poured into the biosystem and waste waterwere analyzed with the time rangeevery 6 hours from 0 until 48 hours.The results of the capability treatment system showed that the biosystems of plants was capable to reduce optimals levels of Phenol from 24 to 30 hours of processing amounted to 0.2906 mg / L, Ammonia from 24 to 36 hours of processing amounted to 0.1452 mg / L, Ion Klorida and COD from 18 to 30 hours of processing amounted to 2.127 mg / L and 3.848 mg / L. Biosystems plant is effective to lowering levels of phenol and ammonia (above 50%), but less effective in lowering levels of Chloride Ion and COD.

ISOLASI, IDENTIFIKASI DAN UJI POTENSI BAKTERI YANG BERPERAN PADA PENGOLAHAN AIR LIMBAH YANG MENGANDUNG RHODAMIN B DALAM BIOSISTEM TANAMAN Sang Ayu Sri Satya Laksmi Utari; Ida Bagus Gede Darmayasa; I Wayan Budiarsa Suyasa
SIMBIOSIS Vol 3 No 1 (2015)
Publisher : Jurusan Biologi Universitas Udayana

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Rhodamin B is a dangerous synthetic dyes substances used as a fabric dye in thetextile industry. Biodegradation is one way that is used in the processing of liquid wasteRhodamin B. Biodegradation technique is leveraging the ability of microbial activitiesdegrade or eliminate pollutant compounds. The main objective of this research was toinvestigate the characteristic of bacteria that are capable of living on wastewater containingRhodamin B and the effectiveness of single and microbial consortium isolates to degradeRhodamin B on wastewater. The isolation of the bacteria was done by plating method and theidentification of the bacteria by using a Kit API 20E. Test of bacterial potential of RhodaminB dyes substance carried out in the Microbiology Laboratory, Biology Department, Facultyof Science, Udayana University. It was found in this research that five bacterial isolates wereobtained (Pseudomonas sp., Shigella spp., Stenotrophomonas sp., Pasteurella sp. dan Proteussp.). Pasteurella sp. had the highest percentage degrade effectiveness of 40.55%. Microbialpotential degrade Rhodamin B by Pasteurella sp. dan Proteus sp. results showed significantdifferences (P <0.05) to control.Keyword: bacteria, biodegradation, Rhodamin B

Solid Catalyst in Esterification and Transesterification Reactions for Biodiesel Production: A Review Nengah Simpen; IN. Suprapta Winaya; ID.G. Ary Subagia; IW. Budiarsa Suyasa
International Journal of Engineering and Emerging Technology Vol 5 No 2 (2020): July - December
Publisher : Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/IJEET.2020.v05.i02.p29

Biodiesel is considered as an important substitute for the replacement of fossil diesel due to its biodegradable, renewable and non-toxicity to environment. Biodiesel consist of mixture of mono alkyl esters of long chain fatty acids. It is produced from vegetable oils, animal fats and waste cooking oil. Solid catalysts are promising and advantageous for biodiesel production because those could be reusable, environmentally benign and are more effective than liquid catalysts. Moreover, the application of solid catalysts does not produce soaps through triglycerides saponification or free fatty acids neutralization. When triglycerides as major component of oil react with alcohol (methanol or ethanol) to form biodiesel in the presence of base catalyst, this called is transesterification. When acid catalysts are used for reducing free fatty acids to form biodiesel, this called is esterification. The application of solid catalysts in esterification and transesterification reactions for biodiesel production are discussed in this review.

The Hardness Analysis of Epoxy Composite Reinforced with Glass Fiber Compared to Nettle Fibers I Gede Putu Agus Suryawan; NPG Suardana; IN Suprapta Winaya; IWB Suyasa
International Journal of Engineering and Emerging Technology Vol 5 No 1 (2020): January - June
Publisher : Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/IJEET.2020.v05.i01.p02

The purpose of this study is to compare the hardness of glass fiber reinforced composite materials with the hardness of netted fiber-reinforced composite materials. Glass fiber is a commercial fiber that has been used in various industries while nettle fiber is a natural fiber that is more environmentally friendly. Composite material has several advantages, namely the form that can be adjusted, high strength, lightweight and resistant to corrosion. Nettle plants are plants that have strong fibers in the bark. In this study, nettle composites were made with variations in the weight fractions of 10%, 15%, and 20%. Hardness testing used the Shore D Durometer. The results of the hardness value of glass fiber composites with weight fractions of 10%, 15%, and 20% are 82.4 Shore D, 84.5 Shore D, and 86.5 Shore D, show an increase in stable hardness because the glass fiber factor is already commercial, the fiber strength is evenly distributed. The hardness values of nettle fiber composites with fractions of 10%, 15%, and 20% are 81.6 Shore D, 85 Shore D, and 86.6 Shore D, the hardness value of each nettle composite increases with the addition of fiber weight fraction but is unstable due to the strength factor of each nettle single fiber uneven. Furthermore, with the right treatment, nettle fiber can replace glass fiber.

ANALISIS KUALITAS AIR DAN STRATEGI PENGENDALIAN PENCEMARAN DI DANAU BATUR MENGGUNAKAN ANALISIS FORCE-FIELD Ni Komang Ayu Septiani; I Wayan Budiarsa Suyasa; I Nyoman Rai
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 1 (2022)
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.2022.v16.i01.p02

Batur is the largest lake in Bali which has the potential to experience pollution due to the high activity in the body and the surrounding environment. This condition indicates the need for serious management efforts to maintain water quality. This study aims at analysing the water quality, status of the water quality of Lake Batur and also formulate a strategy for controlling water pollution in Lake Batur. The water sample analysis method was carried out in two ways, namely in situ method and laboratory testing. The feasibility level of the results was matched with the Class 1 Water Quality Standard based on the Bali Governor Regulation number 16 of 2016, for the status of the water quality determined by the Pollution Index Method according to the Decree of the State Minister of the Environment No. 115 year 2003. In determining the control strategy, the force field analysis method was applied. The results of the study, there were several parameters that exceeded the quality standard ranging from 18.33-23 mg/l. In addition, the DO content at some points was also not classified as lightly polluted where the highest IP value is Brother with a value of 2.07. The pollution control strategy of Lake Batur produced based on force field analysis was increasing innovative socialization to the community, increasing the promotion of Lake Batur conservation, providing training and entrepreneurial skills as well as providing small-scale business capital assistance, synergizing government policies and programs and forming a pollution control unit. Keywords: water quality; pollution index; control strategy.

EFEKTIVITAS PEMANFAATAN KULTUR LOKAL DALAM BIOREAKTOR PENGOLAHAN AIR LIMBAH KERAJINAN ENDEK Ni Made Tia Juliasari; I Wayan Budiarsa Suyasa; I Nyoman Rai
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 1 (2022)
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.2022.v16.i01.p03

Endek is one of the fabrics that are in demand by local and foreign people. The distinctive pattern of this endek cloth continues to develop while still paying attention to the authenticity of the endek motives from Bali so that it is easily recognized by the public, however, in its production, it produces waste that causes environmental pollution therefore it needs to be managed. One of the easy and efficient textile waste management is a bioreactor by utilizing local culture. Local cultures are indicated as indigenous microorganisms originating from the waste itself. The purpose of this study is to analyze the effectiveness of local cultures in bioreactors in improving wastewater quality and analyze the effectiveness of using local microbial cultures in bioreactors for treating endek wastewater. This study applied a quantitative approach with experimental methods. The processing begins with the growth of biofilms to determine the biomass profile using the Mixed Liquor Suspended Solid (MLSS) method, then the color waste water is stored in an anaerobic reservoir for 24 hours then tested and then processing, later it is inundated for 1 hour before parameter measurement. The parameters tested were COD levels, color content and pH. Based on the results of the study, the optimum MLSS value obtained in the seeding process was 4490 mg/L on the 7th day and the biofilm growth biomass profile of 3240 mg/L on the 22nd day. The utilization of local microbial culture in the bioreactor in this study was effective in reducing the color content parameter by 77% at processing times of 384 and 408 hours, and decreasing pH was only effective at processing time of 6 hours and reducing COD was not effective. Keywords : endek wastewater, local culture, bioreactor, effectivenes

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

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