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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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Pengaruh Waktu Tinggal Hidrolik Terhadap Penyisihan Padatan Pada Pengolahan Sludge Ipal Pulp And Paper Menggunakan Bioeraktor Hibrid Anaerobik Ardian, Siti; Ahmad, Adrianto; Herman, Syamsu
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 increasing of pulp and paper industry in Indonesia had brought environmental problems which caused by Sludge waste pollution. The characteristic the wastewater treatment of pulp and paper sludge includes TS (Total Solid) 7.6 gr/L; TVS (Total Volatile Solid) 7,4 gr/L; TSS (Total Suspended Solid) 6,0 gr/L; and VSS (Volatile Suspended Solid) 5,9 gr/L. The impact will potential if the solid contents were threw away into the water because the materials of the solid containts can became pollute in environtment. This research with treat the wastewater treatment of pulp and paper’s sludge using a hybrid anaerobic bioreactor with stoned-media to see the effect of hydraulic retention time 5, 4, 3, 2, and 1 days. The results of this research showed that the longer of hydraulic retention time is given, then the greater of solid elimination efficiency. The highest solids elimination efficiency can be found on hydraulic retention time 5 days. The value of TS (44.03%), TVS (83.06%), TSS (68.85%), and VSS (95.25%). The performance by hybrid anaerobic in wastewater treatment sludge has been good, in lowering the solids content parameters.Keywords: anaerob; efficiency; hybrid bioreactor; hydraulic retention time
Uji Kinerja Bioeraktor Hibrid Anaerob Dua Tahap Dengan Variabel Beban Kejut (Shock Loading) Pada Pengolahan Limbah Cair Pabrik Kelapa Sawit Khairat, Nur; Ahmad, Adrianto; Yenie, Elvi
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 progress of plantation area in Indonesia to increase significantly. Along with the increasing area of oil palm plantations, the production of palm oil mills also increase. The production of palm oil mill produced wastewater with high content of organic material. If it discharged into the water, it will potentially to reduced water quality and pollute the environment. Wastewater treatment can be anaerobically by using hybrid anaerobic bioreactor. This research purposed to test the stability and performance of hybrid anaerobic bioreactor two stage with shock loading variable measured the content of COD (chemical oxygen demand), pH, temperature and production of biogas. The operation of shock loading is by providing the rate loading increase suddenly of 50% with the flow rate is 7.5 L/day, increase of 100% with the flow rate is 10 L /day and increase of 150% with the flow rate is 12.5 L/day for 6 hours, then returned to flow rate base of first bioreactor with the flow rate is 5 L/day. The results of testing the stability of the bioreactor in anticipation the fluctuations of wastewater flow with shock loading by 50%, 100% and 150% showed that the recovery period of hybrid anaerobic bioreactor two stage relatively quickly with time span is 5 to 7 days. The highest COD reduction is obtained after loading increase 150% at flow rate 12.5 L/day, COD value is 4.500 mg/L with COD removal efficiency is 92.2%. Therefore, the flow rate increase suddenly (shock loading) wasn’t effect the performance of hybrid anaerobic bioreactor two stage so the process of wastewater treatment can take place properly.Keywords: Anaerobic , COD, Palm Oil Mill Wastewater, Shock Loading, Two Stage Anaerobic Bioreactor Hybrid.
Pengaruh Laju Alir Umpan Terhadap Efisiensi Penyisihan Padatan Dalam Limbah Cair Pulp Dan Kertas Dengan Reaktor Kontsk Stabilisasi Elfina Noviarni Chandra; Adrianto Ahmad; Sri Rezeki Muria
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

High consumption of paper both globally and nationally have pushed pulp and paper industry to increase its production capacity from year to year. This resulted the wastewater produced in large quantities. Characteristics of solids in pulp and paper wastewater includes TS (Total Solid), TVS (Total Volatile Solid), TSS (Total Suspended Solid) and VSS (Volatile Suspended Solid) respectively are 0,7; 0,28; 0,6; 0,26 g/L. Solids in the wastewater is a material adverse impact on water quality, such as reducing sunlight penetration into bodies of water, increasing the turbidity of water, can lead to impaired growth for organism and solubility of oxygen in water. Solids handling of pulp and paper wastewater can be aerobically by using stabilization contact reactor. The purpose of this research is to removing the content of solids in pulp and paper wastewater and determine the effect of feed flow rate of solids removal efficiency and biomass concentration on stabilization contact reactor. The conditions of this research is detention time in stabilization tank is 4 hours, sludge age 15 days and % resirculation is 75% of influent flow. The results showed that the solids removal includes TS, TVS, TSS and VSS by varying feed flow rate for 2,2 L/hour, 2,9 L/hour, 4,4 L/hour and 8,8 L/hour, the highest solids removal efficiency obtained at 2,2 L/hour respectively are 72,38%, 69,05%, 79,26% and 74,36%. This suggests that the stabilization contact reactor is stabilized in removing solids content of pulp and paper wastewater.Keyword: Aerobic, Content of Solids, Pulp and Paper Wastewater, Reactor Contacts Stabilization.
Penyisihan, Warna, Zat Organik Dan Kekeruhan Pada Air Gambut Dengan Kombinasi Proses Koagulasi-Flokulasi Menggunakan Koagulan Aluminium Sulfat (Al2(So4)3) Dan Membran Ultrafiltrasi Nastiti, Yulia; Daud, Syarfi; Herman, Syamsu
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 main challenge in peat water treatment is finding the treatment process that produces treated water quality which meets the quality standard of clean water. One of the peat water treatment is membrane ultrafiltration with combination coagulation-flocculation process. Combination treatment is done to improve the quality of processed water and reduce the workload of the membrane so membrane's performance increases. The purpose of this study was to determine the decrease of turbidity, organic matter and color on coagulation-flocculation process, determine the flux and rejection coefficient of turbidity, organic matter and color in processing using ultrafiltration membranes without and with combination coagulation-flocculation process and determine decrease of color, organic matter, and turbidity in water treatment using membrane ultrafiltration with combination of coagulation-flocculation process. The study was conducted by using 60 mg/L of coagulant aluminum sulfate (Al2(SO4)3) on coagulation-flocculation process and ultrafiltration membrane feed pressure 0.5; 1 and 1.5 bar. The results showed highest rejection coefficient values of turbidity, organic matter and color obtained on peat water treatment by combination coagulation-flocculation process and ultrafiltration membrane at pressure 0.5 bar, with rejection coefficient value for turbidity, organic matter and color respectively amounted to 100 %, 91.04% and 96.68%.Key Words: Aluminum Sulfate, Coagulation-Flocculation, Color, Organic Matter, Peat Water, Turbidity, Ultrafiltration Membrane
Penyisihan, Warna, Zat Organik Dan Kekeruhan Pada Air Gambut Dengan Kombinasi Proses Koagulasi-Flokulasi Menggunakan Koagulan Poly Alumunium Chloride (PAC) Dan Membran Ultrafiltrasi Zella Sri Rizka; Syarfi Daud; Syamsu Herman
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

Generally, peat water quality not suitable with water quality standards Permenkes No. 416 / Menkes / Per / IX / 1990. Peat water treatment commonly used to produce treated water still above the quality standard. One of the peat water treatment methods used in this study is combination of coagulation-flocculation and ultrafiltration membrane. This study aims to determine the effect of coagulants Poly Aluminum Chloride (PAC) to decrease colour, organic matter and turbidity, determine the performance of membrane for flux and rejection of colour, organic matter, and turbidity with and without pre-treatment of coagulation flocculation, determine decrease of colour, organic matter, and turbidity in peat water treatment using ultrafiltration membrane with pre-treatment of coagulation-flocculation. Peat water treatment by flocculation and coagulation combination of ultrafiltration membrane using Poly Aluminum Chloride (PAC) as coagulant with dose 150 mg / L, and varying the ultrafiltration membrane feed pressure of 0.5; 1 and 1.5 bar. The result showed that the peat water treatment by combination of coagulation-flocculation and ultrafiltration membrane rejection coefficient values of color, organic matter and turbidity, the highest obtained at the pressure of 0.5 bar, with rejection coefficient values for color, organic matter and turbidity, respectively amounting to 98.72%, 92.54% and 100%. The best average flux value with pre-treatment of coagulation flocculation obtained at pressure 1.5 bar that is 275.400 L / m2.jam.Keywords: Coagulation-Flocculation, Colour, Organic Matter, Peat Water, Poly Aluminium Chloride (PAC), Turbidity, Ultrafiltration Membrane
Pemantauan Kondisi Polusi Udara Secara Real Time Di Kawasan Universitas Riau Dengan Menggunakan Wireless Sensor Network Waspmote Dan Zigbee Feri Saputra; Yusnita Rahayu; Ery Safrianti
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

Air quality monitoring is very necessary to anticipate the dangerous air pollution such as forest fires pollution like PM10. Excellent air monitoring done in real time, so that the monitoring data obtained directly. In the research make aplication air monitoring real time using Microsoft Visual Basic 2010, air monitoring device with using wireless sensor network waspmote plug and sense for monitoring of PM10 and waspmote OEM for monitoring CO and O3, data communication using Zigbee. Application will process wireless sensor network waspmote data to ISPU data for reference condition the air content PM10, CO dan O3, and application will display in ISPU graphical. Design database in Microsoft Access to connect monitoring aplication so monitoring data can be stored. Air monitoring conducted in Riau University.Keywords : Wireles Sensor Network Waspmote, Zigbee, Database, Real time, Air polution
Analisa Kinerja Electrostatic Precipitator (ESP) Berdasarkan Besarnya Tegangan DC Yang Digunakan Terhadap Perubahan Emisi Di Power Boiler Industri Pulp And Paper Afrian, Noza; Firdaus, Firdaus; Ervianto, Edy
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

Coal-fired power plant can be a source of air pollution if the combustion of coal is not handled properly. The ash from the combustion of coal in a boiler to produce fly ash and bottom ash. Based on this condition, required tools to reduce or control the fly ash. The most effective tool to be used is the electrostatic precipitator (ESP). This observation purposes to Analyze the performance of ESP by the magnitude of the DC voltage used and able to improve the performance of ESP based on the magnitude of the voltage used to changes in emissions. Based on the observations made that the greater the emissions into the ESP, the greater the voltage, which is the actual maximum voltage of 70 kV and a maximum emission incoming (135 mg/Nm3), as well as the efficiency of ESP is also influence by the voltage generated, the greater the voltage generated then the efficiency would be increase.Keywords: Electrostatic precipitator (ESP), voltage, emissions 
Identifikasi Kegagalan Peralatan Proteksi Pada Jaringan Distribusi PT. Pln Gardu Induk Garuda Sakti Menggunakan Anfis (Adaptive Neural Fuzzy Inference System) Devi Juliana; Eddy Hamdani; Edy Ervianto
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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The purpose of research is to identification process of faulty protection devices using operating status of circuit breaker. Technique used for the identification process is Adaptive Neuro-Fuzzy Inference System (ANFIS). ANFIS is a method that combines fuzzy logic and neural network. Design ANFIS needs input data in form of voltage, current and operating status of circuit breaker (1 and 0) for training process. Input data produces by output of distribution system simulation in ETAP, meanwhile operating status of circuit breakers in binary numbers, one and zeros are interpreted as operating and non-operating devices, respectively. The training result gives worth accuracy so that can be use for predicting operating status of circuit breaker. If faulty device has been identified so system restoration can be done immediately.Keywords: ANFIS; distribution system; faulty protection devices; circuit breaker
Perancangan Dan Pembuatan Starting Motor DC Shunt 4 Step Menggunakan Variasi Tahanan Berbasis Mikrokontroller ATMega8535 Sultoni Amni; Noveri Lisbetty Marpaung; Edy Ervianto
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 need for knowledge will never become the student, students, and the society.Along with diminishing labor electrical engineering lab work equipment in universities and riau diciptakanlah the new lab work to create a starting motor direct current detention before using in order to support the process of learning and to provide knowledge to stick together.The test is done to three blocks chain, namely, the relay prisoners startingand current starting.Starting on tampa load the prisoners semangkin small will produce a current of starting a large while the one-time prisoners generator inversely against the current starting at 10 percentage of the average data error 3,863 % and percentages 96,1936 %.Keywords: Starting Motor DC Shunt, Mikrokontroller ATMega8535.
Pengereman Motor Arus Searah (DC) Berbasis Mikrokontroller Atmega8535 Yogie Novriandi; Noveri Lisbetty M; Edy Ervianto
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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Automatically braking the DC machine needs to be done given the enormous losses suffered due to motor overload. The use of a microcontroller in a series of motor braking is needed for braking the motor automatically has advantages such as precise, fast, and costeffective. It because the excess is then required circuit automatically controlling braking motorsusing microcontroller ATMega8535.Keywords : DC Machine, Braking, Microcontroller, Direct Current

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