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Riau
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
 281   282   283   284   285 
Pengaruh Dosis Adsorben Dan Yang Telah Diaktivasi Waktu Kontak Terhadap Penyisihan Logam Besi (Fe) Dan Warna Air Gambut Menggunakan Adsorben Tanah Lempung Gambut Dita Yusrita; Syarfi Daud; 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

Quantitatively, peat water has the potential to be a source of water that can be processed into clean water, but qualitatively the utilization of peat water is still experiencing problems such as high iron (Fe) content and high color. The use of peat water in the long term will have a negative impact on health, so it needs to be processed into clean water. This study aims to study the effect of adsorbent dose and contact time on the efficiency of removal of iron (Fe) and the color of peat water and the adsorption capacity of the adsorption process using physically activated peat clay as an adsorbent. This study varied the adsorbent dose of 4 g/L, 8 g/L and 12 g/L with adsorbent particle size -100 +120 mesh and contact time variations of 120 minutes, 140 minutes and 160 minutes with a stirring speed of 150 rpm. The results showed that the best effect on the removal efficiency was obtained at an adsorbent dose of 12 g/L and a contact time of 160 minutes with a metal removal efficiency of 84.42% and a color removal efficiency of 96.41%. The best effect on the adsorption capacity was the adsorbent dose of 4 g/L and a contact time of 160 minutes with a value of iron (Fe) adsorption capacity of 0.250 mg/g and a color adsorption capacity value of 114.68 mg/g.Keywords: Peat Water, Peat Clay, Adsorption, Physical Activation, Iron Metal (Fe) and Color
Kuantan Singingi Botanical Garden Dengan Pendekatan Parametrik Desain Suryander, Ridho; Husaini, Muhd. Arief Al; Susilawaty, Mira Dharma
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

Indonesia is a country with a tropical climate. The tropical climate makes Indonesia rich in natural resources, especially the diversity of flora that are scattered throughout Indonesia. Indonesia is estimated to have 25% of the species of flowering plants around the world. Exploitation of flora diversity, illegal logging, conversion of forest areas to other areas, hunting and illegal trade are some of the factors that cause the endangerment of flora diversity. To prevent more and more flora from becoming extinct and to study flora species we need a container, namely a botanical garden. The approach used to design a botanical garden is a parametric design approach. This approach is used to solve the problem of placement of space, structure, and expand human thinking in creating formations. Keywords : Botanical Garden, Parametric Design, Flora Diversity
Pemetaan Kapasitas Daya Dukung Tanah Untuk Fondasi Dalam Berdasarkan Data Sondir Di Kota Pekanbaru Irvan Arisma; Agus Ika Putra; Gunawan Wibisono
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 bearing capacity of the soil can be defined as the ability of the soil to support the load on the foundation of the structure above it. In determining the bearing capacity of the foundation, soil investigation data that is commonly used is based on the Cone Penetrometer Test (CPT) or Sondir Test in the form of end resistance (qc) and frictional resistance (qs). The purpose of thisstudy is to obtain a map that describes the bearing capacity of the soil at a certain depth and type of foundation. 41 CPT test data spread over the area of Pekanbaru city were used to determine the bearing capacity of the soil using the Aoki & De Alencar method and the Meyerhoff method. The type of foundation that is taken in calculating the bearing capacity is a concrete pile foundation with a diameter of 60cm. Based on the calculation results, the averagebearing capacity value for single pile foundations using the Aoki & De Alancer method at a depth of 6 meters, 12 meters, and 18 meters are 45,293 tons, 47,564 tons, and 56,168 tons, respectively. Meanwhile, if using the Meyerhoff method, the average bearing capacity values forsingle pile foundations at the same three depths were obtained respectively 137,952 tons, 233,861 tons, and 300,889 tons. Then the test sites that have adjacent bearing capacity values are connected and plotted in different maps for each method and depth.Keyword: bearing capacity, deep foundation, mapping, sondir test
Analisis Pengaruh Penambahan Lumpur Gambut Terhadap Penurunan Kekeruhan, Zat Organik, Dan Warna Air Gambut Dengan Cara Koagulasi Menggunakan Koagulan Poly Alumunium Chloride (PAC) Adhani Nindri Afrilia; Dewi Fitria
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 presence of Water the peat found in Riau and the water potential used as a source of drinking water. Peat water containing high organic so it needs processing before use. The content of organic substances and the high color in peat water hard to set aside with the process of coagulation – flocculation process, so in this study added peat mud. This study aims to determine the effect of the addition of peat mud in the process of coagulation-flocculation process using coagulant Poly Aluminum Chloride (PAC) 1%. The concentration of the peat Mud used is of 3 g/L, of 5 g/L, 7 g/L, 9 g/L and 11 g/L. Stirring quickly used 150 rpm for 1 minute and stirring slow 70 rpm, 50 rpm, and 30 rpm each for 30 minutes. From the results of the research with the addition of sludge concentration turbidity increased slightly, the concentration of organic substances decreased and the concentration of color decreased when compared with no addition of peat mud.Key words: Coagulation and Flocculation, Color, Organic Substance, Peat Water, Peat Mud, and Turbidity.
Pengaruh Penambahan Kadar Plastik Jenis Polypropylene Terhadap Titik Lembek Aspal Modifikasi Afrianti, Dwi; Reza, Muhammad; Bahruddin, Bahruddin
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 country of Indonesia is ranked second in the world for producing plastic waste, so the use of plastic waste must be carried out. The use of plastic waste as an additive in asphalt mixtures can improve the quality of asphalt concrete pavement and also reduce plastic waste. This study aims to determine the effect of adding plastic waste to the characteristics of modified asphalt layer AC-BC (Asphalt Concrete-Binder Course). The research was carried out in an experimental laboratory with the type of plastic used PP the percentage addition of plastic content was 0%, 2%, 3%, 4%, 5%, and 6% by weight of asphalt. The results showed that the addition of plastic had increase the softening point of asphalt and decrease the penetration value of asphalt.Keywords: modified asphalt, marshall characteristics, laston AC-BC, plastic
Aplikasi Smart Home Untuk Mengaktifkan Lampu Henti Nuraini Napitupulu; Noveri Lysbetti Marpaung
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

Smart Home or Smart Home is a household control system that works and is controlled with the help of a computer, to integrate and control one or more household electronic devices automatically. With the aim of designing a prototype of a smart home control and monitoring system in the form of a prototype to control devices such as tv, fans, lights and website-based air conditioners that can be accessed using a Wireless Local Area Network (WLAN) which is expected to make it easier for users. The working system of this research is to simulate the control carried out by residents of the house by turning on or off electronic equipment using a smartphone as a tool to control Arduino as a microcontroller to give commands to the relay as a power regulator for electronic devices that are connected to an electrical connection. The Smarthome application will display the condition of the electronic device on or off. The advantage of the Smarthome application is that it does not require a webserver and internet network as a medium for sending data to Arduino for data storage media for electronic status on or off. After this research is completed, some conclusions can be drawn as follows: The test results of the circuit on the electronic device are successful. If the L1 button is pressed, L1 is on and the interface will turn red. If the L2 button is pressed, L2 is on and the interface will turn green. If the L3 button is pressed, L3 is on and the interface will turn yello. If the L4 button is pressed, L4 is on and the interface will turn blue.Keywords: Smart Home,WLAN, Arduino, webserver
Rancang Bangun Sistem Informasi Kenaikan Pangkat Dosen Di Jurusan Teknik Elektro Universitas Riau Azzuhri Azzuhri; Salhazan Nasution
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

At a university, both public and private, of course, there are lecturers for the implementation of the teaching and learning process. lecturers can be declared as professional educators and scientists who have the main task of transforming, developing, and disseminating science, technology, and art through education, research, and community service. Promotion is an award given for the work performance and dedication of lecturers, as well as an encouragement to lecturers to further improve their work performance and dedication. With this promotion, it is intended that the lecturer is able to increase the level of productivity, have more motivation, to do things that are innovative or at least will not violate the existing rules in the agency. Therefore, to take advantage of increasingly advanced technology, we designed a web-based lecturer promotion information system that can assist in the process of lecturer promotion. The testing method used in this study is blackbox testing. Keywords: Lecturer promotion, Information system, Web-based
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.
Redesign Kawasan Wisata Danau Raja Rengat Dengan Prinsip Arsitektur Berwawasan Lingkungan M Shofyan; Wahyu Hidayat; Muhd Arief Al Husaini
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

Indragiri Hulu has several tourist attractions that are already known by the people inside and outside Indragiri Hulu regency, especially Lake Raja which has its own specialty that is located in the center of Indragiri Hulu regency, namely rengat city. Raja Lake has great potential as a tourist icon of Indragiri Hulu regency. In addition to being located in the center of The Raja Lake Tourism district is also supported by a replica of the Malay Kingdom. The application of the theme of environmentally sound architecture to display the natural beauty of the Lake Raja area that will be applied to landscapes and buildings of the area in other words the design that still maintains and preserves the natural environment Redesign will later follow the rules of ecological architecture, Green Building, so that the Lake Raja Tourism Area becomes a tourist icon indragiri Hulu district that utilizes the surrounding natural environment conditions. Keywords : Eco Architecture, Tourist Areas, Malay
Kaji Eksperimental Solar Chimney Power Plant (SCPP) Dengan Concentrating lens Disusun Dengan Pola Aligned Fransiskus Asisi Benny Sitinjak; Iwan Kurniawan
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

Solar chimney power plant (SCPP) is an efficient and environmentally friendly renewable energy by utilizing solar energy as its main source. Based on the obtained hypothesis, the use of concentrating lenses can increase the temperature inside the solar collector. With increasing temperature, the speed of air to rotate the turbine blades will increase, so that the power obtained will increase maximally. This tool consists of 4 parts, namely: a buffer made of circular steel reinforcement, a heat sink made of concrete and painted black to absorb more heat and formed in a circle, a transparent cover or collector of clear plastic material, and a concentrating lens with variations of 36 and 21 concentrating lenses. This study aims to determine the temperature increase that occurs in the solar collector using a concentrating lens, to determine the wind power potential and efficiency of the solar collector using 36 concentrating lenses, 21 concentrating lenses and without using concentrating lenses. The results of this research are, by the using of concentrating lens that totalling of 36 and 21, it produces maximum wind power of 3.006 W and 2.478 W with an average of 0.929 W and 0.761 W per day, while without the using of concentrating lens, it produces 1.483 W with an average of 0.486 W per day, and it obtained the collector efficiency by the using of 36 and 21 concentrating lens of 1.122% and 1.016%, and without using a concentrating lens the collector efficiency is obtained 0.775%. Keywords Solar Chimney Power Plant, Concentrating Lens, Solar Radiation

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