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<![CDATA[PEMANFAATAN LIMBAH CAMPURAN ECENG GONDOK DAN KOTORAN SAPI DENGAN PROSES HIDROLISIS ASAM SULFAT DALAM PEMBUATAN BIOGAS ]]>
<![CDATA[roni, kiagus ahmad]]>
<![CDATA[ Jurnal Tekno Vol 17 No 2 (2020): Jurnal Tekno ]]>
Publisher : <![CDATA[Direktorat Riset dan Pengabdian pada Masyarakat Universitas Bina Darma ]]>
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DOI: 10.33557/jtekno.v17i2.772
<![CDATA[Kelangkaan gas elpiji di Indonesia mengakibatkan kenaikan harga gas elpiji. Sejak beralihnya kebiasaan rumah tangga di Indonesia dari menggunakan minyak tanah menjadi gas epliji untuk keperluan sehari – hari membuat kebutuhan gas elpiji semakin meningkat. Oleh karena itu, diperlukan energi alternatif untuk mengatasi permasalahan ini. Salah satunya ialah biogas. Pada penelitian ini digunakan eceng gondok sebagai bahan baku utama pembuatan biogas. Pemanfaatan eceng gondok sebagai bahan baku biogas dikarenakan memiliki kandungan karbohidrat dan selulosa. Selulosa akan dihidrolisis menjadi glukosa oleh bakteri yang akan menghasilkan gas metan sebagai biogas. Akan tetapi, untuk mencapai hasil yang optimum diperlukan adanya biostarter dari limbah ternak, salah satunya kotoran sapi. Penelitian ini bertujuan untuk mengetahui komposisi eceng gondok dan air, eceng gondok dan kotoran sapi serta lama fermentasi eceng gondok paling optimum. Berdasarkan hasil penelitian yang didapatkan bahwa komposisi eceng gondok dan air yang paling optimum dengan lama fermentasi 7 hari serta komposisi eceng gondok dan kotoran sapi yaitu pada perbandingan 1 : 3 selama 7 hari dan 50% : 50% mampu menghasilkan biogas hingga 302 mL selama 21 hari. Analisa COD dan TSS menunjukkan bahwa semakin rendah konsentrasi COD dan TSS maka semakin banyak volume yang dihasilkan. Hal ini terlihat bahwa konsentrasi COD 21,40 mg/L dan TSS 38,30 mg/L mampu menghasilkan biogas sampai 302 mL. Selain itu juga dengan analisa titik embun gas dan nyala api menunjukkan bahwa komposisi eceng gondok dan air yanng terbaik pada perbandingan 1 : 3 dan komposisi eceng gondok dan kotoran sapi 60% : 40% dan 50% : 50% menunjukkan bahwa tidak ada embun pada gas tersebut dan menyala dengan sangat cepat. KATA KUNCI : Energi Alternatif, Biogas, Eceng Gondok, Biostarter Kotoran Sapi]]>
<![CDATA[Sistem Pengendalian Banjir Sungai Aur di Kota Palembang ]]>
<![CDATA[Amin, Muhammad]]>;
<![CDATA[Syarifudin, Achmad]]>
<![CDATA[ Jurnal Tekno Vol 18 No 1 (2021): Jurnal Tekno ]]>
Publisher : <![CDATA[Direktorat Riset dan Pengabdian pada Masyarakat Universitas Bina Darma ]]>
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DOI: 10.33557/jtekno.v18i1.1040
<![CDATA[Palembang is a metropolitan city in Indonesia and geographically located between 2o 52 ′ to 3o 5 ′ south latitude and 104o 37 ′ to 104o 52 ′ east longitude with an average height of 8 meters above sea level. The area of ​​Palembang City is 400.61 km2 which is administratively divided into 16 districts and 107 villages. Palembang City is the capital city of South Sumatra Province with territorial boundaries in the north, east and west with Banyuasin Regency; while the south is bordered by Muara Enim Regency. Musi River has 19 sub-watersheds, one of which is the Aur Sub-Basin which is the location of this research. This research method was carried out by means of a numerical approach with the help of the HECRAS 4.1 program and the discharge data was obtained through an empirical formula. The pattern of water flow movement from the Musi River towards the Aur River in the return period of 2, 5, 10, 20 and 50 years causes runoff and the volume of the existing retention pond exceeds the existing capacity. The mainstay discharge in the return period of 2, 5, 10, 20 and 50 years does not cause runoff on the Aur River with a flow time of 5 minutes. However, if it is more than that time, the retention pond storage capacity will overflow and cause flooding. The flow pattern in the channel leading to the Aur River is very small so that when the river water overflows it will slow down a decline. Along the Channel and Aur River there is a maximum overflow at STA 1 + 450 in the 2 year return period of 0.85 m ', in the 5 year return period of 1.16 m', the 10 year return period of 1.35 m ', in the return period 20 years is 1.58 m 'and in the 50 year return period it is 1.75 m'. The flood control system in the Aur River Basin consists of 2 (two) ways : technical and non technical methods]]>
<![CDATA[IDENTIFIKASI LAJU EROSI DAN LAJU SEDIMENTASI PADA WADUK WONOSARI KABUPATEN BENGKALIS ]]>
<![CDATA[Saily, Randhi]]>;
<![CDATA[Jusi, Ulfa]]>
<![CDATA[ Jurnal Tekno Vol 18 No 1 (2021): Jurnal Tekno ]]>
Publisher : <![CDATA[Direktorat Riset dan Pengabdian pada Masyarakat Universitas Bina Darma ]]>
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DOI: 10.33557/jtekno.v18i1.1072
<![CDATA[Generally, people who live in island areas depend on the management of water resources, such as the distribution of raw water from reservoirs. Bengkalis Regency is an island area and has a Wonosari reservoir which functions as a source of raw water for the people. Often, there is drought or lack of water supply to the people during the summer. One of the factors indicating the cause is the reduced volume of water storage in the reservoir due to sedimentation which can be calculated using the equations of erosion rate and sedimentation rate. The method used is the explorative-survey which obtains supporting data from direct field surveys and spatial, environmental and territorial approaches. The results for this study proved that sedimentation in the reservoir did not significantly affect the occurrence of water shortages which caused water needs to be not fulfilled in the community. The rates of erosion and sedimentation rates are 5.415 ton/ha/yr and 0.164 ton/ha/yr (very light erosion hazard category).]]>
<![CDATA[Pengambilan Keputusan Dalam Pemilihan Supplier Dengan Metode Analytical Hierarchy Process (AHP) dan Technique For Others Reference by Similarity to Ideal Solution (TOPSIS) ]]>
<![CDATA[Wicaksono, Martin]]>;
<![CDATA[Fathimahhayati, Lina Dianati]]>;
<![CDATA[Sukmono, Yudi]]>
<![CDATA[ Jurnal Tekno Vol 17 No 2 (2020): Jurnal Tekno ]]>
Publisher : <![CDATA[Direktorat Riset dan Pengabdian pada Masyarakat Universitas Bina Darma ]]>
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DOI: 10.33557/jtekno.v17i2.1078
<![CDATA[M-Merchandise is a business launched by the Mulawarman University Business Management Agency. The problem for these merchandise products is that in determining suppliers it has not been done well, there is no particular method of determining suppliers. So M-Merchandise needs to do supplier selection to get the best supplierr. In making a decision, determining suppliers is applied to the AHP and TOPSIS methods. The AHP method is used to determine the most influential criteria with a paired comparison matrix, then the weight values ​​are used as input to the TOPSIS method to rank suppliers. From the results of the AHP calculation, M-Merchandise have obtained the quality criteria with the highest weight of 0.300. This shows that quality is a major factor in supplier selection. Furthermore, other criteria applied are price with a weight of 0.221, shipping 0.040, technical capability 0.165, a communication system 0.095, and a packaging ability 0.179. From the results of the TOPSIS calculation, the PK supplier is the best supplier to choose with a value of 0.617]]>
<![CDATA[ENERGY NOT SOLD (ENS) PADA IMPLEMENTASI FAULT DETECTION INSULATION AND RESTORATION (FDIR) PT. PLN DI PENYULANG OGAN GARDU INDUK SEI JUARO ]]>
<![CDATA[Fithri, Normaliaty]]>;
<![CDATA[Fitriani, Endah]]>
<![CDATA[ Jurnal Tekno Vol 17 No 2 (2020): Jurnal Tekno ]]>
Publisher : <![CDATA[Direktorat Riset dan Pengabdian pada Masyarakat Universitas Bina Darma ]]>
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DOI: 10.33557/jtekno.v17i2.1080
<![CDATA[As an effort to carry out sustainability services with efficient distribution of electricity quality, a system that can provide a form of service with reliable distribution system is implemented that can provide an overview of the narrowing of the territory of the extent of the disturbance that is happening. With the application of the Fault Detection Insulation and Restoration (FDIR) system in the feeder with a relatively fast and automatic maneuver process, it can reduce the duration of the outage which can also directly determine the point of disturbance when a disturbance occurs in real time. If there is a disturbance in the Ogan feeder, the FDIR automation system will immediately isolate the network by maneuvering the Kedondong feeder in less than one minute, so that by calculating ENS you can get the benefit of reducing the Energy not sold (ENS) value.]]>
<![CDATA[Redesain Metode Kerja Guna Reduksi Workload Fisik Dan Mental Pekerja Di Pt. Spu Palembang ]]>
<![CDATA[Setiawan, Heri]]>;
<![CDATA[Kusmindari, Christofora Desi]]>
<![CDATA[ Jurnal Tekno Vol 17 No 2 (2020): Jurnal Tekno ]]>
Publisher : <![CDATA[Direktorat Riset dan Pengabdian pada Masyarakat Universitas Bina Darma ]]>
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DOI: 10.33557/jtekno.v17i2.1081
<![CDATA[PT. SPU Palembang is an industrial company that produces Hospital Furniture and Rehabilitation products with the trademark SHIMA. This study aims to reduce the physical and mental workload received by workers in the Machine Shop Department. This research is focused on the production process .Measurement of physical workload uses the calculation of the worker's heart rate by calculating the percentage of Cardiovascular Load (CVL). Measurement of mental workload using the National Aeronautics and Space Administration Task Load Index (NASA-TLX) score calculation method. The results obtained based on the aspect of NASA-TLX before the proposal almost all workers receive a mental workload with a value of > 80 that is included in the category of heavy mental workloads except Milling-Drilling Workers (4) have a score < 80 in the category of moderate mental workload. After the proposal all workers have a score < 80 so that the mental workload received falls into the medium category. Based on the proposals applied to the Lathe Worker (1) and the Milling-Drilling Worker (4) namely the improvement of work methods in the process of turning, punching, and the proposed holding of a reminder as a tool to remember, the results obtained %CVL from both workers < 30%. Three other workers, although experiencing a decline, remained at > 30%. The category of mental workload received by workers from previously included in the category of heavy mental workload dropped to moderate]]>
<![CDATA[ANALISIA HIDROGRAF SATUAN DAN WIND ROSE PLOTS PADA DAERAH ALIRAN SUNGAI SEKANAK ]]>
<![CDATA[Destania, Henggar Risa]]>;
<![CDATA[Syarifudin, Achmad]]>
<![CDATA[ Jurnal Tekno Vol 17 No 2 (2020): Jurnal Tekno ]]>
Publisher : <![CDATA[Direktorat Riset dan Pengabdian pada Masyarakat Universitas Bina Darma ]]>
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DOI: 10.33557/jtekno.v17i2.1082
<![CDATA[Sekanak watershed is a basin in Palembang which is often affected by flood during the rainy season. The characteristics of the watershed by the impact of changes in land-use by economic and settlement developments. Sekanak watershed has 3 retention ponds which have the function of accommodating temporary discharge during floods. The catchment capacity of the watershed soil type, storage conditions etc. Therefore we need an analysis of the transformation of rainfall data in the watershed into a flow at the watershed control point and an analysis of the transformation of runoff volume (effective rain) into a surface runoff hydrograph (unit hydrograph). Hydrographs measured at a watershed control point are the response or output from rain that falls on a watershed system. The size of the watershed depend on the watershed system. This is closely related in analyzing the availability of water that occurs in the watershed system.]]>
<![CDATA[Pengembangan Model Penerimaan Teknologi ]]>
<![CDATA[Sukwadi, Ronald]]>;
<![CDATA[Ambarita, Kevin Reinhard]]>;
<![CDATA[Nguyen, Thi Bich Thu]]>
<![CDATA[ Jurnal Tekno Vol 18 No 1 (2021): Jurnal Tekno ]]>
Publisher : <![CDATA[Direktorat Riset dan Pengabdian pada Masyarakat Universitas Bina Darma ]]>
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DOI: 10.33557/jtekno.v18i1.1163
<![CDATA[The world is developing exponentially and rapid. Industrial 4.0 is a milestone of industrial digitalization. Hence, the change of B2C business interaction with consumer. Annual growth of internet and smartphone users force industries such as creative industries to develop mobile application, This industry contributes 7.44% to national GDP in 2018 and is projected to be bigger each year. The growth of theatre count in Indonesia triggers film industries as part of creative industries to grow. TIX ID as an electronic ticketing keen on serving the best service quality to consumer through online purchases. From this phenomenon, researcher decided to identify the factors that will affect the adoption of TIX ID. This research employs an extended TAM which are Self-Efficacy and Subjective Norm. Questionnaires were distributed and a sample of 647 respondents was taken for analysis using SEM with AMOS. Findings of this study reveal that Self-Efficacy affects Perceived Ease of Use and Perceived Usefulness. Perceived Ease of Use affects Perceived Usefulness but doesn’t affect Attitude. Perceived Usefulness affects attitude and behaviour intention. Attitude and Subjective Norm affects behaviour intention.]]>
<![CDATA[MONITORING KELEMBABAN TANAH PADA PENYIRAM TANAMAN OTOMATIS ]]>
<![CDATA[Nurdiana, Nita]]>;
<![CDATA[Perawati, Perawati]]>
<![CDATA[ Jurnal Tekno Vol 18 No 1 (2021): Jurnal Tekno ]]>
Publisher : <![CDATA[Direktorat Riset dan Pengabdian pada Masyarakat Universitas Bina Darma ]]>
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DOI: 10.33557/jtekno.v18i1.1166
<![CDATA[Planting, which is one of the people's hobbies, requires a certain amount of time and scheduling in watering it. Manual watering is sometimes less efficient due to limited time, weather and soil conditions. Soil moisture is an important factor in plant growth. Lack of moisture can cause plants to wilt. Excess moisture can reduce the volume of roots that function to jam. We need a tool that can help watering plants automatically by monitoring soil moisture. In this study, the design of this tool was carried out using the Arduino uno, a soil temperature and humidity sensor. In addition, this tool is also equipped with a DC submersible pump that will stop pumping air to water the plants when the soil moisture limit has been met. Based on the results of the tests that have been carried out, the sensor for moist soil conditions at the time of the assessment value shows a value of 29.94%, the voltage is 2.57 volts, while in wet soil conditions it is indicated by an assessment value of 68.86% with a voltage of 1.094 volts. In general, this tool works in accordance with the design that has been done, namely the relay works to activate the pump to pour water when the sensor detects dry soil conditions and the relay will stop the pump when the soil moisture condition is detected wet by the sensor.]]>
<![CDATA[Pengaruh Impresi Ekologis Wilayah Di Provinsi Lampung ]]>
<![CDATA[Yani, Ahmad]]>
<![CDATA[ Jurnal Tekno Vol 18 No 1 (2021): Jurnal Tekno ]]>
Publisher : <![CDATA[Direktorat Riset dan Pengabdian pada Masyarakat Universitas Bina Darma ]]>
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DOI: 10.33557/jtekno.v18i1.1178
<![CDATA[Telah dilakukan penelitian mengenai pengaruh impresi ekologis wilayah terhadap tingkat kejahatan. Penelitian ini menggunakan pendekatan pemodelan dengan menggunakan data sekunder. Adapun model yang digunakan dalam penelitian ini adalah regresi linier berganda dengan menggunakan beberapa dummy variabel. Variabel respon yang digunakan adalah tingkat kejahatan yang meliputi pembunuhan, perkosaan & penganiayaan. Adapun variabel penjelas meliputi tingkatan wilayah urban dan cemaran udara (cemaran udara meliputi : CO & CO2) sebagai variabel utama dilengkapi dengan variabel pengiring (tempat rekreasi & tempat ibadah). Berdasarkan hasil regresi linier yang menggunakan piranti lunak Minitab V.16 pada selang kepercayaan 10 % menunjukkan bahwa derajat wilayah merupakan salah satu variabel yang dapat menyebabkan terjadinya kenaikan tingkat kejahatan. Adapun untuk variabel cemaran lingkungan (CO & CO2) tidak berpengaruh nyata.]]>
