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Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
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Articles 3,145 Documents
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Pre-Treatment Air Payau Dengan Koagulan Tepung Jagung Dan Filtrasi Dengan Membran Ultrafiltrasi Sistem Aliran Crossflow Kardo Kardo; Syarfi Daud; Shinta Elystia
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The coastal area are poor raw water eligible to be used as a standard raw water based on PERMENKES No. 492/210 and PP No. 82/2001. This area typically used brackish water daily needs. Due to the presence of sea water intrussion in to wells. The brackish water are not suitable to be use continue. It therefore reguirestreatment to get suitable water. Pre-treatment of brackish water with contrarch as coagulant and filtration membrane as alternative technology to be developed in water treatment. This research aims to be knowing the influence of coagulant dose variation, the transmembrane flux and rejction against of salinity, turbidity,COD, TSS, and pH. This result are showing the best reduction of pre-treatment process in 50 ppm therefore efectivity each other are salinity 23,61%, turbidity 43,64%, COD 83,58%, TSS 98,03%, and pH 12,05%. The filtration with membrane each parameter are salinity 89,09%, turbidity 88,94%, COD 58%, TSS 85,71 and pH 27,10%. Flux value obtained pressure is 1,5 bar that is 276,506l/m2.jam.Keywords: Brackish Water, COD (Chemical Oxygent Demand), Corn Starch, Pre-treatment, Ultrafiltration Membrane, Salinity, TSS (Total Suspended Solid), Turbidity
Analisis Daya Tampung Beban Pencemaran Sungai Siak Bagian Hilir Menggunakan Pendekatan Water Quality Analisys Simulation Program (Wasp) Versi 7.3 (Wilayah Kabupaten Siak) Handrianti, Pipi; Suprayogi, Imam; Andesgur, Ivnaini
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Siak River is one of the largest river in Indonesia that has national concern and be included as national strategic river. Siak River has widely utilized by the surrounding population, but in recent times, the Siak River Basin including its critical downstream watershed in Siak regency, occuring the decrease of river water flow and quality, triggered by increased activity along the river basin which is dominated by plantation activities. In this research, the Siak Siam Load Capacity Analysis of Siak downstream in Siak district using WASP7.3 model with 14 segments for each BOD parameters in the minimum discharge simulation is 151 m3 / sec followed by reducing the pollution load according to the standard quality of class II. Reductions of pollution load are 75% of BOD parameter, so that attaining the standard quality of class II. The value of DTBP after the reduction for the pollution load of BOD are 12.134,95 kg / day respectively. Siak watershed downstream of Siak district is recommended into the designation of class II according to Government Regulation No. 82/2001 on Water Quality Management and Water Pollution Control.Keywords: Pollution Load, WASP7.3, Pollution Load Reduction, DTBP
Pengaruh Penggunaan Soil Stabilization Terhadap Sifat Fisik Mortar Dengan Agregat Halus Berkadar Lumpur Tinggi Rahman, Arif; Ismeddiyanto, Ismeddiyanto; Suryanita, Reni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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Abstract

This study examined the physical properties of mortar mixed from fine aggregate containing high percentage of mud and soil stabilization. According SNI S-04-1998-f regulations fine aggregates for concrete should not be more 5% mud. Soil stabilization as additive material in the mortar mixtures will increase the quality of mortar.. The percentage of mud in the study was 0%, 5%, 10%, 15%, 20% and 23%. Soil stabilization of 1% as additional material of the mortar’s mud weight. The tested physical properties of the study object consist of its unit weight, sorptivity, porosity amd compressive strength. Study object was treated by submerging in normal water in 28 days. The compressive strength of mortar with high mud content and added soil stabilization is higher 2.82%, 4.74%, 8.16%, 13.94% and 16.03% compared to mortar with high mud content without soil stabilization at 5%, 10%, 15%, 20% and 23% mud content variation.The porosity of mortar with high mud content and added soil stabilization is higher22,21% compared to mortar with high mud content without soil stabilization. Sorptivy test results added soil stabilization value 0,1 mm/min0,5- 0,2 mm/min0,5 which means mortar is good. The unit weight mortar with high mud level and added soil stabilization is higher by average unit weight 2,31 gr/cm3 compared to mortar with high mud content without soil stabilization. Based on the overall study, it’s concluded that the overall strength of mortar with high mud content and added soil stabilization is higher than mortar with high mud content without added soil stabilization.Keywords : Mud, Soil Stabilization, Mortar.
Evaluasi Tingkat Pelayanan Fasilitas Dan Operasional Terminal Penumpang Angkutan Jalan Berdasarkan Peraturan Menteri No. 40 Tahun 2015 Dan SK Dirjend Wahana Tata Nugraha Tahun 2010 Desi Sartika; Yosi Alwinda; Mardani Sebayang
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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Abstract

The terminal is a road transportation infrastructure that takes the form of a transportation node for the purpose of raising passengers, loading / unloading goods, arranging the arrival and departure of public transport and the place to start and end trips. Simpang Aur Terminal is a type A terminal serving inter-city transportation in the province (AKDP), between inter-provincial cities (AKAP) in the City of Bukittinggi. This condition makes facilities at terminals important, but there are still many lack of terminal facilities at Simpang Aur that have not met Terminal service standards based on PM No. 40 of 2015. Therefore, it is necessary to evaluate Simpang Aur terminal service facility standards to improve terminal services good in accordance with established standards, safe and comfortable for users. The method used in this study is the method of direct observation, literature, and interviews. The results of the Simpang Aur terminal facility service standard analysis based on the availability of available infrastructure, in terms of reliabilit/regularity, obtained a suitability value of 60%, comfort services obtained 36.4% conformity value, and convenience /affordability services that is 80%. The loading factor for AKDP public transportation is 44.58%, and for AKAP is 46.72%. Waiting time / parking duration for AKDP 44 minutes, for AKAP 81 minutes. The results of the analysis of the physical condition based on the Dirjen Wahana Tata Nugraha Decree in 2010 showed that the physical condition of Simpang Aur Terminal was 59% that met the requirements, with the assessment weight in the range ≤60% included in the medium category, then for Terminal Aur facilities needed additional facility as a type A terminal for convenience for terminal infrastructure users.Keywords: Simpang Aur Terminal, Type A Terminal, Terminal Facilities, Physical Conditions, Service Standards.
Taekwondo Training Center Dengan Pendekatan Arsitektur Metafora Tangible Di Pekanbaru Rahman, Fadli; Aldy, Pedia; Susilawati, Mira Dharma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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Abstract

The development and achievement of Taekwondo from Riau province on the National level in 2013 began to move forward rapidly and also the rise of Riau's position to the 4th rankin the National level had made Taekwondo of Riau province began to be noticed by the Taekwondo Big Executive Board of Indonesia (PBTI). It is necessary to support various facilities that can accommodate all activities of Taekwondo to get better performance. Due to the lack of coordinating institution that facilitate Taekwondo activities starting from thelodging, the field and most important thing is the place to do the exercises. The approach of the design will use Tangible Metaphor Architecture which will apply Taekwondo shape andcharacter, so that people can recognize the function of the building just by looking at the physical appearance of the building and produce a more modern formation. The purpose is toproduce a more expressive architecture by trying to move information from a subject to a building. The results is Taekwondo Training Center will implement the formation of Splitmovement to the form of building because Split is a typical movement of Taekwondo is very well known by people.Keywords: Taekwondo, Tangible Metaphor, Riau
Penataan Kawasan Wisata Dakwah Okura Dengan Pendekatan Arsitektur Ekspresionisme Edi Kurniawan; Wahyu Hidayat; Gun Faisal
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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Abstract

Dakwah Okura Tourism is a sunnah sport tours located in the village of Okura, Rumbai district. Dakwah Okura Tourism is the first sharia tourist attraction using the concept of sunnah sports as their tourist activity. There are sunnah sports recommended in Islam, in a hadith of the Prophet, those 3 types of sports are swimming, horseback riding and archery. In order to keep the aesthetics and the comfort of the user, there should be an optimization at this tourist area, so thatthe infrastructure could work synergistically and comprehensively to support more adequate activities and to complete some sunnah sports activities. This design method used the theme of expressionism architecture as the form of building architecture that could realize a concept of how the building are able to accommodate well and becoming the identity of the region and having anattractive aesthetic. The design of this tourist area is aimed to introduce the sunnah sports to the community, especially Riau community, so that the community are able to get closer to the sunnah, which is recommended by the Prophet Muhammad Shallallahu 'Alaihi Wasallam. The result of this design is the visitors can feel the differences that exist in each building and feel the sensation as well as expressing their emotions or feelings through the form. There are 3 functions that exist in this area, which is: primary function, secondary function and support function. Activities in this primary function are: horseback riding, swimming, archery and airsoft gun/paintball, the secondary function is in the form of trade and services, the supporting function is in the form of treatment, management and service.Keyword: Aesthetics, Dakwah Okura, Expressionism Architecture, Sunnah Sports
Penerapan Prinsip Desain Tadao Ando Pada Photography Training Centre Di Pekanbaru Sitti Fachtin Shuraha; Yohannes Firzal; Andre Novan
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The advances of photography’s benefit in human life is followed by the increasing human need is used as the livelihood. Photography Training Centre is a place for training and education thatfunctioned as an interaction space for community support the creative industries in Pekanbaru. By using Tadao Ando's design principles, it is able to create interconnections photography througharchitecture and the surrounding environment. As the results of this design can be an installment for photography enthusiasts, through a concept that is triangle of exposure, this building has architectural qualities that can enhance creativity and ideas for photography through architectural elements.Keywords: Photography Training Centre, Tadao Ando, Triangle of Exposure.
Pembuatan Biodiesel Dari Minyak Biji Kapuk (Ceiba Pentandra) Dengan Katalis Lempung Teraktivasi; Pengaruh Konsentrasi Katalis Dan Aktivasi Katalis Nurhasanah Nurhasanah; Syaiful Bahri; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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Abstract

Biodiesel is a methyl ester transesterification reaction products of triglycerides derived from vegetable oils or animal fats. One among of vegetable oils that can produce biodiesel is kapok seed oil. Kapok seed oil had higher levels of unsaturated fatty acids are high that they could be made to produce biodiesel. This research is aim to make biodiesel from kapok seed oil, studying the effect of concentration of activated clay catalyst to the amount of biodiesel produced, determine the characteristics of biodiesel from kapok seed oil and determine the best catalyst activation of the activation of acid or base. The transesterification process occured at a temperature of 60oC, the weight of oil 50 grams, the reaction time 1,5 hours, mole ratio of oil to methanol 1 : 9, variation of the catalyst concentration 0,1%, 0,5%, and 1%-weight of oil, and variations of acid solution (0,47%, 0,62%, dan 0,78%) and alkaline solution (0,33%, 0,44%, 0,66%) for activation of catalyst. From the result is obtained the highest biodiesel of 1% catalyst concentration of acid activation 0,78%, methanol mole ratio of 1: 9 for 1,5 hours as much as to 92,62 %. Characterization of physical properties of biodiesel is density of 871 kg/m3, 3,11 mm2/s kinematic viscosity, acid number 0.36 mg KOH / g sample, and the flash point 200oC respectivity.Keywords: biodiesel, catalysts, clay, activation of acids, activation of bases, transesterification
Karakteristik Pemanpatan Tanah Gambut Dengan Variasi Serat Wulandari, Deny; Fatnanta, Ferry; Nugroho, Soewignjo Agus
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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Abstract

A peat soil has different characteristics compared to clay, therefore some consolidation tests are needed to obtain a proper compression method when construction are located on peat soils. The purpose of this research was to determine the compression characteristics of peat soil with fiber variation based on Gibson and Lo (1961) method and laboratory testing. This research used amorphous peat, a samples which taken from Tambang, Kampar. The first sample is undisturbed, and the second with zero fiber, 30 % fiber and 60 % fiber. The equipment used consist of modified consolidometer, with a diameter and height are 15 cm. The load were applied 10 kPa, 20 kPa, 40 kPa, 80 kPa and 160 kPa. Some loads were added every 14 days. The result showed that water content has no influence to settlement, and samples with great amount of water content has low strain. Samples with high fiber content and low unit weight, i.e. 60% of fiber content produce the highest strain. Therefore, unit weight is a very crucial point in determining settlement in this research. Square root of time method can’t be used on peat due to the different from settlement vs time root curve. The void ratio vs strain curve formed in concave shape due to the macropores and micropores inside the peat. On real condition and 30% of fiber samples, the time to reach 90 % of compressibility were reduced along with enhanced loads, the fiberless and 60 % of fiber samples were increased along with enhanced loads. Gibson and Lo method can’t be used on amorphous peat. Hence, it needs to be corrected with primary compression parameters (a), secondary compression parameters (b) and .Keywords: Peat, Amorphous, Fiber Content, Consolidometer
Sintesis Biodiesel Dari Palm Fatty Acid Destillate (PFAD) Menggunakan Katalis Cu-Hap Dengan Variasi Kecepatan Pengadukan Dan Waktu Reaksi Putri, Desi Erika; Azis, Yelmida; Alfarisi, Cory Dian
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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Abstract

This research will shown the effect of stirring velocity and reaction time to biodiesel yield production and determine the physical and chemical characteristics of biodiesel. Palm fatty acid destillate (PFAD) synthesis which is a by-product of cooking oil processing becomes biodiesel through esterification. The esterification was done by mixing PFAD by 25 gram with Cu-HAp catalyst 0.25 gram and 97 ml methanol. Stirring velocity is 250 rpm, 300 rpm and 350 rpm and reaction time variation is 2 hours, 3 hours and 4 hours at 60 ° C. The highest biodiesel yield at 300 rpm stirring speed with a reaction time of 2 h is 63%. For physics characteristic of biodiesel in the form of density are: 0,884 gr/ml - 0,902 gr/ml, viscosity: 4,181 cSt - 5,029 cSt, acid number: 0,553 mg KOH/g oil - 1,661 mg KOH/g oil and calorific value: 9048 - 9813 Kcal / kg produced according to biodiesel standards SNI-04-7182-2006. For the analysis of GC-MS (Gas Chromatography-Mass Spectroscopy) the main compounds found in biodiesel from PFAD are methyl myristate, methyl palmitate, methyl linoleate, methyl oleate and methyl stearate is 78,88%Keywords: Biodiesel, PFAD, Cu-HAp catalyst, esterification.

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