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All Journal Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Jurnal Dampak Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Unri Conference Series: Community Engagement International Journal of Community Service Journal of Bioprocess Chemical and Environmental Engineering Science Journal of Community Engagement Research for Sustainability Jurnal Teknologi Kimia Unimal
Elvi Yenie, Elvi
Fakultas Teknik, Universitas Riau
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Nursing Public Health Social Sciences Other

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Uji Toksisitas Akut Effluent Pengolahan Lindi TPA Muara Fajar Terhadap Ikan Mas (Cyprinus Carpiol ) Dengan Metode Renewal Test Novita Faradisha; Shinta Elystia; Elvi Yenie
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The garbage mixed with rain water will produce leachate. Leachate can be pollution if not treated before being discharged into the environment. The leachate treatment are precipitation process, coagulation-flocculation, sedimentation, and cleaning process. However, effluent of TPA Muara Fajar Landfill was above the standard quality of KEP 51-/MENLH/10/1995 about industrial effluent standard. Therefore research on acute toxicity test of effluent leachate from Muara Fajar Landfil to determine LC50 value and TUa (Toxicity Unit area) value by using renewel test method in 96 hours observation. Testing animal used was goldfish (Cyprinus Carpio L). LC50 value was calculated by probit method which utilized the goldfish mortality and the parameters tested was DO, pH, temperature, COD, and sulfide. The value of LC50 of effluent Muara Fajar Landfill was 3,595% and TUa (Toxicity Unit Area) of effluent Muara Fajar Landfill was 27,81. The results showed that value of effluent could make great acute toxicity. Result show the COD and sulfide leachate of characteristics of Muara Fajar landfill affected goldwish mortality. By the higher concentrations and characteristic by the higher goldwish mortality, which means more toxic the leachate was. By the smaller concentration value and characteristics of leachate by the higher LC50 value, which means the toxicity of the leachate was disminished.Keywords : effluent leachate of muara fajar Landfill, LC50 value, renewal test, toxicity.
Pengaruh Aktivasi Naoh Terhadap Biosorben Spent Mushroom Substrate (SMS) Shinta Nurdiyanti; Elvi Yenie; David Andrio
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Spent mushroom substrate (SMS) generated as waste by mushroom industries after the harvesting of mushroom. SMS is one of the most organic waste generated from agricultural waste that contain lignocelluloses and can be used in modifed for the adsorption of dyes, pollutants and heavy metals. In this study, SMS was modified using sodium hydroxide (NaOH) and prepared as biosorbents. NaOH can be an efficient and economical modifier for lignocelluosic material. This study aims to determine the effect of the effect on NaOH concentration and contact time of iodine activation number and SMS surface area.Keywords: Biosorbent, NaOH, Spent Mushroom Substrate.
Uji Toksisitas Akut Limbah Cair Kelapa Sawit Terhadap Ikan Patin (Pengasius Sp) Dengan Metode Renewal Test Queen Destya; Shinta Elystia; Elvi Yenie
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Wastewater produced from palm oil industry could potentially cause pollution because it contains the value of COD and high organic matter that can effect the death of aquatic biota. Wastewater from the outlet Waste Treatment Unit PT. X is still above the quality standards set by the government. Therefore research on acute toxicity test of palm oil industry to determine the value of LC50 and to analyze the relationship of wastewater from the outlet Waste Treatment Unit PT. X towards the experimental animal. This research was done by renewal test method in 96 hours of observation by using Catfish (Pangasius sp.) as the test animals. LC50 value was calculated by probit method which utilized the catfish mortality and the parameters tested was DO, pH, temperature, COD,ammonia and nitrate. The characteristic value of wastewater of palm oil PT. X is COD 1426,8 mg/l, ammonia 0,9909 mg/l, nitrate 0,0075 mg/l, pH 8, DO 3 mg/l, and temperature 28°C which the parameter of COD passed the quality standar of the Environment Minister’s decision No. 51/MENLH/10/1995 about the Quality Standart of Waste Water for Palm Oil Industry. The result showed the value of LC50 is 9,878% and TUa (Toxicity Unit Area) of palm oil industrial wastewater is 10,22 showed that the wastewater of palm oil could make great acute toxicity.Keywords: catfish, palm oil wastewater,the value of LC50, renewal test.
Uji Emisi Gas CO Dari Pembakaran Briket Tandan Kosong Sawit (TkS) Pada Skala Rumah Tangga Wanda Putri Saragi; Hafidawati Hafidawati; Elvi Yenie
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Biomass is an alternative energy source because it has hydrocarbon molecules. In this study, processing of biomass into briquettes from plantation waste is carried out in the form of Oil Palm Empty Bunches (TKS). In its use, briquettes through the combustion process will produce carbon monoxide gas emissions which have many negative impacts. Therefore, this study was conducted to determine the results of CO concentration resulting from the combustion of EFB briquettes on variations in emission measurement distances. Emission testing was carried out using the Environmental Combustion Analyzer Model 450. The results of the analysis obtained the concentration of CO parameters for EFB briquettes with variations in the measurement distances of 0 cm, 10 cm, 20 cm and 30 cm, namely 162 mg/Nm3, 141 mg/Nm3, and 74 mg. /Nm3 and 69 mg/Nm3. The test results for a safe distance that can be used for cooking is at a distance of 30 cm from the emission source, namely the emission test results are below the quality standard of 69 mg/Nm3 Keywords: biomass, briquette, emissions measurement distance, empty bunch of palm, carbon monoxide
Efesiensi Dan Kapasitas Biosorpsi Logam Cu (II) Menggunakan Sisa Media Jamur Coprinus Comatus Teraktivasi HCl Chrysty Elesa Hutauruk; Elvi Yenie; Said Zul Amraini
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The development of industries that produce volumes of waste produced, which one is copper, Cu (II). Cu (II) can be dangerous and toxic to human and the environment. This study aims to utilize spent mushrooms subsrate (SMS) Coprinus comatus removing Cu (II) metal in electroplating wastewater. Biosorbent spent mushrooms subsrate (SMS) was activated using HCl. Variation concentrations of HCl (0.1; 0.5; and 1 N) in contact activation time 15 minutes. The results show that biosorbent was activated using HCl at concentration 0.1 N in contact activation time 15 minutes has high efficiency is 13.90%. Keywords: Biosorption, spent mushrooms subsrate, concentrations of HCl, contact activation time , Cu (II), electroplating wastewater.
Pengaruh Variasi Massa Adsorben Terhadap Kapasitas Adsorpsi Ion Logam Cu2+ Menggunakan Limbah Padat Tandan Kosong Sawit Maysha Permata Sari; Elvie Yenie; Edward HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The adsorption process of artificial Cu2+ solutions was investigated using an adsorbent made from Empty Fruit Bunches . This study aims to calculate the adsorption capacity of Cu2+ metal ions by varying the mass of the adsorbent from waste from carbonized Oil Palm Empty Fruit Bunches at 3500C. The mass of the adsorbent used was 2, 4, 6, 8 and 10 grams. The results showed that the best adsorption capacity occurred at a mass of 2 grams, which was 3.882 mg/g. Keywords: Cu2+, TKS, Adsorption, Capacity Adsorption.
Pemanfaatan Limbah Spent Bleaching Earth (SBE) Sebagai Bahan Baku Pembuatan Briket Siti Aisyah Sukma; Elvi Yenie; David Andrio
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The need for energy is continuously increasing and the availability of fuel is depleting, the necessary to save energy source. Saving can be through the use of fuel or energy sourced from renewable energy. Therefore, it is necessary to conduct research to obtain alternative fuels that can be renewed such as spent bleaching earth (SBE) waste. SBE is solid waste that comes from the bleaching of crude palm oil. The hoped that SBE solid waste can be reused so that SBE waste does not become an environmental problem because it is existence has not been optimally untilized. This research will utilize SBE waste as raw material for making briquettes with the addition of tapioca adhesive. Keywords: Briquettes, Spent Bleaching Earth, Tapioca Adhesive
Pemanfaatan Spent Bleaching Earth (SBE) Dan Tandan Kosong Sawit (TKS) Sebagai Bahan Baku Pembuatan Briket Niko Ronaldo P. S; Elvi Yenie; David Andrio
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Indonesia's dependence on fossil energy has made the availability of petroleum decrease drastically. This situation was driven by increased growth in the industrial sector and population. The depletion of fossil energy reserves must be immediately balanced with the provision of alternative energy, one of the uses of biomass as an alternative fuel to replace fossil fuels is to make it into briquettes. Biomass waste produced from the palm oil industry are solid waste of empty palm oil fruit bunches and solid waste of spent bleaching earth. The hoped that empty palm oil fruit bunches waste and spent bleaching earth solid waste can be reused so that waste does not become an environmental problem because it is existence has not been optimally untilized. Keywords: Briquettes, Spent Bleaching Earth, Empty Palm Oil Fruit Bunches
Pengolahan Lindi Tpa Muara Fajar Dengan Proses Koagulasi Dan Membran Uitrafiltrasi Megah Mulia Ginting; Jhon Armedi Pinem; Elvie Yenie
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Leachate is luquid which was produced from huge of waste at landfill. Leachate has organic substances which is potentially harmful of human and ecosystem. Because it can serve as a medium for the growth and development of  pathogenic microorganisms. This study aimed to determine the effect of coagulant  Aluminum Sulfate concentration in the coagulation-flocculation, membrane  resistance, flux and rejection percentages.  In the coagulation-flocculation process,  coagulant Aluminum Sulfate concentration was used 30 ppm. The process was done by quickly stirring in 200 rpm on 2 minutes and slow stirring in 60 rpm on 10 minutes with 30 minutes settling time of flocs. The precipitate formed and clear liquid were separated and the clear liquid was fed to the ultrafiltration membrane with variation of pressure at 1 bar, 1.5 bar and 2 bar.With 30 ppm coagulant the survey resulted was BOD5 reduced 25.00%, COD reduced 24.14% and TSS reduced 52.17%. After the membrane ultrafiltration process, the survey obtain the effective process is at 2 bar membrane pressure with number of rejection as following 71.43% of BOD5, 70.59% of COD  and 45.45% TSS. The fluks number is increasing align to pressure of membrane.   Keywords: Leachate, coagulation-flocculation, membrane  ultrafiltration,  Flux, rejection.
Penggunaan Karbon Aktif Dari Limbah Pertanian Untuk Penyisihan Logam Fe Pada Air Sumur Bor Lidya Astuti; Lita Darmayanti; Elvi Yenie
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Water is a very vital need for living things. Clean water must meet physical and chemical quality requirements. The problem that is often encountered is the quality of ground water used does not meet the requirements as clean water. Deep and shallow groundwater contains a lot of high iron (Fe). Therefore, this article will present a brief review of the utilization of corncorb waste as an adsorbent for reducing Fe metal in groundwater.Keywords : Adsorption, metal Fe, corncob
Co-Authors Abdil Aziz Al Hakim Abdul Manan Adi Putra Pratama Adrianto Ahmad Amarullah Amarullah Amri, Idral Andhini Getha Kusuma Arga Aflyn Febrina H Aryo Sasmita Asward, Mayshara Atria Martina Atria Martina Azzah Fizda Bochari - Bonita Esther FS Bunga Fitriani Gumadita Chaniago Chaniago Chrysty Elesa Hutauruk David Andrio Desce P Simarmata, Stella Desmawita, Dwi Desra Shinta Hasri Dicky Maulana Dikki Awanda Dispriana, Nurmala Dwi Desmawita Dwi Laura Pramita Edward Edward Edward Hs Edward HS Edward, Edward Efpia Naomi Yohana Tambunan Elgina May Lestari Eriyati Ester Melinda Evia Yoana Fatiha Rizqa Feranita Feranita Floria Christin Grethy Asmara Sitorus Hafidawati, Hafidawati Hany Susanti Pangaribuan Hardyan, Rici Hatflan Erico Rambe Helviana Dwika Herfi Rahmi Hotni Lamtiar Husni, Afdaul Ida Zahrina Ifni Rimijuna Imam Suprayogi Irpan Syafrianda Ivnaini Andesgur Iwan Kurniawan Jaspi, Khalika Jecky Asmura Jessar Hendrianto Jhon Armedi Pinem Joleha, Joleha Khairat, Nur Khalidazia Putri Lidya Astuti Lilis Anggreani Lira Aulia Wahyuni, Lira Aulia Lita Darmayanti Loisa Rosalia Sitompul Martin, Dicky Mayang Sari Maysha Permata Sari Megah Mulia Ginting Miftahul Ulum Mareta Miska Alemina Ginting Muhamad Ghifar Alharis Muhammad Fajri Chaniago Muhammad Reza Mutia Khairunnisa Naomi Ebinasari BR Sembiring Naufal, Hafiz Aulia Niko Ronaldo P. S Nora Aprilin Novebriantika Novebriantika Novita Faradisha Novriandi, Rizky Nurfajri, Nabila Nurriya Mayang Sari Pope Jessica Sirait Pretty Nova M H Priscilia P Girsang, Yemima Priyambada, Gunadi Purwoko, Agus Putra, Anggara Putri, Dini Riskiana Putri, Novia Eka Queen Destya Rahmadani Mutia Ramida Elisa Kristiani Simanjuntak Rani Ariyanti Refvi Gusvita Sari Rezeki, Muhammad Dio Ricki Gunawan Rosdinar Hasibuan Rudi Setiawan Ryan Renaldi Sally Mandari Santi Dwi Putri Santoso Nugroho Sari, Nurriya Mayang Sari, Siti Setiaries, Vonny Sheilviana Angela Shinta Elystia Shinta Nurdiyanti Silvi Nora Sinta Sinta Sisri Wantri Sanjaya Manalu Siti Aisyah Sukma Solly Aryza Sri Armita Sari Sri Rezeki Muria Suci Sukmawati Syafdika Sari Siregar Syafrida Khairani SYAIFUL BAHRI Syarfi Daud Tambunan, Efpia Naomi Yohana Tania Octalina Tamamy Tengku Firly Musfar, Tengku Firly Ulfah Nurulita Vera Fitriani Virghea Septilda Zalchie Wanda Putri Saragi Winny Noviami Erziza, Winny Noviami Witami, Witami Yelmida Azis Yohana Siregar Zahra Nadia Elysahaq Zostria Hanijah Zul Fadly Khaira