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INDONESIA
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains
Published by Universitas Riau
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Core Subject : Engineering,
Engineering
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Articles 3,145 Documents
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Pengolahan Limbah Cair Industri Tahu Menggunakan Tanaman Thypa Latifolia Dengan Proses Fitoremediasi Disyamto, Dwi Azrul; Elystia, Shinta; Andesgur, Ivnaini
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Industry tahu in Indonesia will continue to grow in line with the increase in population, due to the increasing market demand. Industry know in Indonesia will continue to grow in line with the increase in population, due to the increasing market demand. The negative impact of industrial pollution if the idea is emergence to environmental wastewater directly discharged without any treatment. To anticipate the potential impact, it is necessary efforts through a variety of alternative waste treatment waste treatment technologies are effective and efficient, one alternative is to use the process of phytoremediation. Based on the morphology of plants Thypa latifolia is suitable for processing by phytoremediation. This study aims to determine the allowance for BOD using Thypa latifolia plants in industrial wastewater know. This research used a plastic tub the size of 50cm x 36cm x 31cm, 10cm soil media thickness, media thickness 5cm sand, and gravel media 5cm thick with plant density variations Typha latifolia (0,5 g/cm2; 0,75 g/cm2, and 1 g/cm2), the variation Hidraulic Loading Rate / HLR (500 l/m2.day; 750 l/m2.day; and 1000 l/m2.day). Concentration of waste pollutant parameters analyzed include BOD, which is processed by Typha latifolia before successive concentration of 1271-1741 mg/l, while after treatment the concentration phytoremediation process successively turned into 232-996 mg/l. These results indicate that the method of the phytoremediation using Typha latifolia capable of removing concentrations of BOD, effluent industrial know. In general, variations in plant density, and HLR have a significant influence, this is evidenced by the difference in removal efficiency is much different. Plant density 1 g/cm2 with 0 g/cm2, and the HLR 500 l/m2.day to 1000 l/m2.day. Pensentase overall removal efficiency of BOD, were obtained in this study ranged respectively from 42.77 to 84.76%. The need of sample dilution to the effluent of phytoremediation waste below the standards that have been set.Keywords : Phytoremediation, Hidraulic Loading Rate (HLR), Plant Density, Waste Water Tahu Industry, Thypa Latifolia.
Efisiensi Penurunan Kadar Kalsium Pada Air Laut Dengan Metoda Penukar Ion Yang Memanfaatkan Tanah Roselyn Indah Kurniati; Shinta Elystia; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Source of water in Bengkalis is difficult. Sea water can be a source of water in there. Once of alternative can be process sea water be clean water use ion exchange with clay. This experiment use coloumn with diameter 2 inchi and high 1,2 meter. Media who used is clay. Ratention time and particle measure used variation of this experiment. Rate of retention time are 60, 120, 180 minute and particle measure are -3+5, -5+10, -10+15 mesh. Concentration Ca before process is 128 mg/l and after process is 58,4-8,8 mg/l of variation. Over all, clay can be cause of concentration Ca. Finally, retention time and particle measure give to effect to cause metal in seawater with efisiensi Ca are 54,38-93,12%, with a CEC of clay is 122,93 meq / 100g.Keywords : Seawater, Ion Exchange, Clay, Ratention Time, Particle Measure
Pengolahan Limbah Cair Pabrik Kelapa Sawit Dengan Metode Fitoremediasi Menggunakan Typha Latifolia Purwanti, Purwanti; Elystia, Shinta; Sasmita, Aryo
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Treatment of palm oil mill effluent still leaves a lot of challenges in terms of both technology and quality standards. Therefore, we need a wastewater treatment system that can provide optimal results in processing and controlling the environmental impact of waste that can be reduced. Phytoremediation is a method of alternative technologies need to be developed to address these challenges. This study aims to determined the pollutant removal efficiency parameters BOD in the palm oil mill effluent, study the influence of variations in plant density, waste content variation, and variation of the residence time of the wastewater treatment efficiency of phytoremediation method. Compare the results of treatment of palm oil mill effluent by phytoremediation method using Typha latifolia with effluent standards for palm oil mill based on the Keputusan Menteri Lingkungan Hidup Nomor 51 Tahun 1995. This research used reactor phytoremediation the size of 50cm x 36cm x 31cm, thickness 10cm soil media, media thickness 5cm sand and gravel media 5cm thick with research variables include plant density variations Typha latifolia (0,5g/cm2; 0,75g/cm2; dan 1g/cm2), variations in the levels of palm oil effluent (20%; 60%; dan 100%), and variation of the residence time ( 5 days and 9 days ). The results showed that the highest efficiency is on density variations in plant 1 g/cm2 , 20% waste concentration, and residence time of 9 days with BOD 97,33 %. Keywords: Levels of Waste, Palm Oil Mill Effluent, Phytoremediation, Plant Density, Typha latifolia.
Metode Penukar Ion Dalam Penyisihan Ammonia Air Lindi Tpa Muara fajar Dengan Variasi Waktu Kontak Dan Ukuran Tanah Lempung Khodijah Khodijah; Shinta Elystia; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
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water into the garbage heap that comes from rain water, drainage channels, ground water, or other resources available around Muara Fajar landfill. Shelters Muara Fajar landfill leachate potential to generate waste that seeps into the ground and flows on the surface of the soil around the landfill. Leachate originating from shelters litter may result in increasing levels of environmental pollution in the vicinity of Muara Fajar landfill. Has done research methods ammonium ion exchangers in isolation Muara Fajar landfill leachate with contacts and measure the time variation of clay. This study aims to determine the parameters of pollutant removal efficiency of ammonia (NH3) by ion exchange method using clay and compares the characteristics of leachate treatment with quality raw KEPMENLH / 51/10/1995. This study uses clay size variations -5 + 10; -10 + 15; -15 + 20 mesh and 60 contact hours; 120; 180 minutes. The analysis shows that the leachate characteristics of NH3 concentration 38.69 mg / L indicating a high enough quality and more than raw (Minister of Environment Decree No. 51 of 1995). Having done the flow of leachate recovered pollutant concentrations decrease. Factors influence size variations of clay and contact time effect on the efficiency of reduction of concentration, the larger the mesh size (smaller diameter clay) then recovered the high efficiency of the concentration of pollutants. The results showed that the efficiency was high in clay size -15 + 20 mesh and 180-minute contact time gives the best removal efficiency of 91.12% NH3. While the efficiency of the lowest available in the size clay -5 + 10 mesh that is Ammonia of 17.13%. Cation exchange capacity of 105 earned meq / 100 g sample.Key Words: leachate, Ion exchange, clay land
Studi Timbulan Dan Komposisi Sampah Sebagai Dasar Perencanaan Sistem Pengelolaan Sampah Di Kampus Bina Widya Universitas Riau Sri Febria; Lita Darmayanti; Jecky Asmura
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
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In all activities, human will produce a residual in a form of solid called solid waste. Kampus Bina Widya is a one of university in Pekanbaru with all of its activities is not hampered from solid waste productiom and problems coming from it, one of which can be seen on the amounts of solid waste in LPS (Land Disposal meantime) located behind of a Stadion Mini. This study aims to determine the waste generation and composition at Kampus Bina Widya and planned waste management system that includes lug, collection, transportation and the planned dump site (TPST) in Kampus Bina Widya, so the landfill activity on campus no longer exists. This study begins with the generation and waste composition studies conducted in 4 faculty, 3 offices, roads, public housing, hospitals and mosques.The study results showed the composition and in 2014 the daily waste generation of 9.448 l/day with composition is inorganic waste by 50,55% % and organic waste by 49,45%. Waste management planning in Campus Bina Widya include disaggregated lug to lug needs a capacity of 10 l bin for organic waste as much as 325 units and as many as 514 units of inorganic waste, bin capacity of 30 l to 108 units as much organic waste and inorganic waste as much as 171 units, bin capacity 60 l for organic waste as much as 62 units and 88 units of inorganic waste. Collection system in the form of segregated polling stations with a capacity of 4 m3 tub. A transport fleet capacity of 4 m3 pick up 2 units. The area of land needs TPSTs in Bina Widya Campus is an area of 635.33 m².Keywords: generation and waste composition, waste management systems, TPST
Studi Karakteristik Dan Potensi Pengolahan Sampah Di Kampus Bina Widya Universitas Riau Wulandari Wulandari; Lita Darmayanti; Jecky Asmura
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
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Solid waste is one of the environmental problems linked to our lives. University of Riau (UR) is a public university in Pekanbaru that can not be separated from the solid waste problems in which there is currently do not have alternative solid waste treatment. The purpose of this study was to determine the potential of treatment and economic potential. Method sample in campus 8 days consecutive shows, with location of sample solid waste faculty, office, canteen, hospital, road, and mosque. Analysis sample characteristic of proximate (water content, volatil, ash and fixed carbon) and garbage energy by using appliance bomb calorimeter. The percentage of the proximate analysis recapitulation waste mixed conditions the average percentage generated of 43,5% water content, volatile content of 45,7%, ash content of 2,2% and fixed carbon of 6,8%. Percentage recapitulation waste proximate analysis by components highest water content of 37,9% of organic waste, volatile content of 83,8% textile waste, ash content of 26,2% plastic waste, and fixed carbon of 96,8% waste iron. The highest calorific value waste is plastic waste that of 12671.56 cal/gr. Solid waste that has economic potential sale value to collectors obtained for Rp.107.735,-/day. Mass balance of weight solid waste with a daily average weight of 816 kg/day, which can be utilized 512 kg/day and the weight of solid waste being dumped into temporary disposal location 303 kg/day. Solid waste treatment for organic waste such as composting or animal feed, while the inorganic waste can be recycled and waste that has economic value can be sold directly to collectors, while the waste that is not used will be disposed to landfill the city of Pekanbaru.Keywords: characteristics, treatment, solid waste, campus, UR.
Pirolisis Limbah Pelepah Sawit Menjadi Bio Oil Menggunakan Ni.Mo/Lempung Cengar Adelina Samosir; Syaiful Bahri; Aman Aman
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
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Fuel is a very important energy. The increase need fuel and diminishing avaibility of fossil fuel. It is also increasing awareness to find alternative energy technology. one of thesealternatives energy is bio-oil. bio-oil is a fuel, organic liquid produced by pyrolysis process. Pyrolysis of biomass a palm midrib. in a palm tree produces 40-50 midrib/tree/year so thatone hectare of palm can produce 6400 to 7500 midrib/year. manufacture of bio-oil with pyrolysis process can be done using Ni-Mo catalyst/Clay. This study aims to find the performance of the catalyst Ni-Mo/Clay Cengar (0%, 1%, 3% and 5% w / w biomass) against yeild bio-oil produced and characterize physical and chemical properties. pyrolysis palm midrib -40+60 mesh size of 50 grams, 0.5 grams of catalyst in 500 ml silinap performed at a temperature of 330 oC. The development Ni-Mo metal on clay cengar shown to affect the yield bio-oil is obtained, while the results obtained yield at 0%, 1%, 3% and 5%, respectively, 49.40%, 58.87%, 53.11% and 49.92%. bio-oil yield results that the maximum 58.87% obtained on treatment using a metal carrier Ni-Mo/clay cengar 1%. characterizationbiooil physical properties of of Ni-Mo/clay impurity 1% w/w has physical characteristics that density 0.9466 g/ml, 10.87 cSt viscosity, flash point 55C, and acid number 0.0751 g NaOH /g sample. based on the results of the analysis of the chemical components bio-oil is best obtained in the treatment bio-oil Ni-Mo/clay impurity 3% w/w bio-oil contains alcohol 7.35%, 0.35% phenol and other compounds 6.72% hydrocracking.Keyword : Bio-oil, a palm midrib, Pyrolysis, Ni.Mo/Clay Cengar
Pemanfaatan Fly Ash Batu Bara Sebagai Adsorben Logam Berat Ion Pb2+ Yang Terlarut Dalam Air Fauzan, Ananda; Aman, Aman; Drastinawati, Drastinawati
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
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Utilization of coal into an energy source, resulting in another effectare pollution, such as fly ash generated from burning coal. For that, we need an alternative to overcome this problemis by using fly ash as an adsorbent to adsorb heavy metals lead (Pb 2+) are dissolved in water through adsorption process. This study aimed to calculate the amount of adsorbate (Pb 2+)are adsorbed by the fly ash with mevariasikan adsorbate concentration (Pb 2+) and stirring speed to determine the equilibrium models. The use of fly ash adsorption of 1 g, the sample solution (Pb 2+) on the variation of the concentration of 3, 7, 11 mg/l and variation of stirring speed of 100 rpm and 130 rpm. Solution (Pb 2+) have been obtained and analyzed using AAS, diketahi that the higher the stirring speed jerap capacity fly ash adsorbent (Qe) so that the smaller the amount of adsorbate (Pb) are adsorbed on the wane. In the stirring speed of 100rpm and 130 rpm Qe value is 0.585 mg/g and 0.55 mg/g. Mechanisms of Pb adsorption by fly ash is dominated by the Freundlich isotherm models that represent physical adsorption,where Pb adsorbed by the active site of the fly ash with the influence of the van der walls.Keyword :Fly ash, Adsorbate (Pb 2+)
Kalibrasi Jangka Sorong Nonius (Vernier Calliper) Berdasarkan Standar Jis B 7507 Di Laboratorium Pengukuran Teknik Mesin Universitas Riau Amani, Nahrul; Arief, Dodi Sofyan
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Vernier calliper is very much used either by measurement laboratories and production. Vernier calliper measurement tools necessary to calibrate each period of 12 months, with a calibration done will determine the value of the correction/error and the value of the measurement uncertainty of measuring instruments vernier calliper. In this study calibration of vernier calliper follow the standard JIS B 7507 - 1993 at which the standard has been described specification requirements vernier calliper. Based on the results of the calibration has been done vernier calliper I have a maximum error of 0.00042 mm and the value of the uncertainty confidence level at 95% with a coverage factor of k = 2 is U95 = ±59.02 μm, vernier callipers II has a maximum error of 0.01994 mm and uncertainties confidence level at 95% with a coverage factor of k = 2 is U95 = ±59.42 μm. Both vernier callipers meets the requirements based on JIS B 7507-1993.Keywords: Metrology, Calibration, Vernier Calliper
Studi Kecermatan Alat Ukur Kebulatan (Roundness Tester Mechine) Produksi Laboratorium Pengukuran Universitas Riau Indro Parma; Adhy Prayitno; Dodi Sofyan Arief
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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Accuracy is the closeness or the accuracy of the measurement results with the actual value. Accuracy can also mean a measure of the closeness results of the analysis of the actual invitation analyte levels. Accuracy is vital that must be fulfilled and owned by any measurement tool, use the measuring instrument that has high accuracy and good will produce accurate measurement data and other wise use measuring devices are not accurate, do not meet the standards of the results obtained will not be accurate. This study aims to determine the value of the mandrel roundness deviation, roundness accuracy Measuring Equipment (Roundness Tester Machine) and large deviations in the roundness measuring instrument (Roundness TesterMachine) (instrument error) and the operator or gauges (human error). From the results, the large stroundness deviation value for minimum circumscribed circle is 0,474 mm, maximum inscribed circle 0,417 mm, minimum zone circle 0,495 mm, least squares circle 0,207 mm, for the value of sphericity (roundness) for the smallest outer for minimum circumscribed circleis 0,003 mm, maximum inscribed circle 0,003 mm, minimum zone circle is 0,003 mm, least squares is 0,001 mm. Value accuracy roundness measuring instrument (Roundness TesterMachine) in position 1 = 0,006 mm, position 2 = 0,006 mm, position 3 = 0,011 mm, position 4 = 0,018 mm, position 5 = 0,003 mm, position 6 = 0,018 mm, position 7 = 0,021 mm, position 8 = 0,031 mm, position 9 = 0,002 mm, position 10 = 0,001 mm and error measuring instrument (instrument error) is the largest 0,02944 mm or 18,871% and the smallest deviation is 0,00029 mm or 0,225%. Operator error or measuring (Human Error) for first test (human) 22%, second test 5,33%, third test 182%, fourth test 187%, fifth test 58%.Keywords: Accuracy, Deviation, Human error, Roundness Tester Machine.

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