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All Journal Reaktor Jurnal Pembangunan Wilayah dan Kota Jurnal Ilmu Lingkungan Jurnal Sains dan Teknologi Jurnal Teknik Kimia USU Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Penelitian Pendidikan IPA (JPPIPA) WAKTU: Jurnal Teknik UNIPA Jurnal Teknologi Pertanian Andalas Al-Ard: Jurnal Teknik Lingkungan KURVATEK Equilibrium Journal of Chemical Engineering Jurnal Abdi Masyarakat Indonesia Jurnal Teknik Kimia USU Envirotek : Jurnal Ilmiah Teknik Lingkungan Jurnal Offshore: Oil, Production Facilities, and Renewable Energy Jurnal Teknik Kimia dan Lingkungan Jurnal Manusia dan Lingkungan Leuser Journal of Environmental Studies Grimsa Journal of Science Engineering and Technology
David Andrio
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Pemanfaatan Limbah Plastik Polypropylene (PP) Sebagai Bahan Baku Pembuatan Ecological Bricks Dengan Kalsium Karbonat Sebagai Admixture R. Rindu Permatasari; David Andrio; Muhammad Reza
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The country of Indonesia is currently published as the second largest contributor of plastic waste in the world, amounting to 28.4 thousand tons of plastic waste / day. Plastic has caused problems in the environment and become waste that is difficult to be reprocessed. Ecobricks (environmentally friendly brick) are made from plastic waste so that it can reduce environmental pollution caused by garbage so as to minimize the generation of plastic waste and prevent air from arising from the process of making ecobricks without having to go through surgery. This study discusses polypropylene (PP) glass packaging and refined aggregate containing carbonate mixtures with a variation of 5%, 7% and on the compressive strength and movement of concrete water according to PUBI, 1982. From the results of the research, the highest compressive strength of the concrete block with PP plastic mixture and 5% carbonate mixture at 28 days is 93 kg / cm2 . Batako at the time of 28 days, the highest absorption of air (absorption) occurred in a normal brick that is 14 66%.Keywords: ecobricks, polypropylene (PP), calcium carbonate, compressive strength, absorbtion
Pengaruh Tekanan Pengepresan Terhadap Nilai Kuat Tekan Briket Sinta Sinta; Elvi Yenie; David Andrio
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The increasing use of fuel oil in line with population growth and industrial growth, demands a thought to explore and develop potential alternative energy sources. Alternative energy sources that can be used as renewable energy include briquettes derived from biomass. One of the biomass from agricultural waste is empty palm fruit bunches and spent bleaching earth, which is waste from the CPO bleaching process that is not used optimally. Utilization of empty palm fruit bunches by adding spent bleaching earth which can be used as solid fuel in the form of briquettes through a carbonization process with the addition of tapioca as adhesive. Keywords: Briquettes, empty palm fruit bunches, pressure, tapioca
Prediksi Emisi Karbon Dioksida Dari Kegiatan Transportasi Di Kecamatan Bukit Raya Kota Pekanbaru Muhammad Iqbal; Aryo Sasmita; David Andrio
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The population of Pekanbaru City grows increasingly every year, especially in Bukit Raya Sub-district. The higher number of motorcycle used by the people as a transportation directly affect the amount of CO2 emissions generated from each vehicles. This study aims to calculate the volume of vehicles and predict CO2 emissions from the number of vehicles in Bukit Raya District. The methodology used in this study is the calculation of the number of vehicles on Sudirman Street, Teuku Bey and Karya I, the calculation of the conversion of the number of vehicles with units of passenger cars (SMP), and calculation of CO2 emissions on effective and non effective day in Bukit Raya District. Total emissions generated from transport activities in Bukit Raya District are 422 ton CO2 / day on effective day and 241,46 ton CO2 / day on non effective day.Keywords: Carbon Dioxide Emissions, Passenger Car Unit (SMP), Emission Factor, Transportation.
Karakteristik Air Gambut Di Rimbo Panjang Kab. Kampar Sebagai Bahan Baku Air Minum Muhammad Al- Hafizd; David Andrio; Jecky Asmura
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Peat water has high color intensity, low pH, high levels of organic matter, turbidity and low suspended particle content and low cation content. Peat water test results produce high levels of color and organic matter parameters in peat water. Where, a high level of parameters can cause problems caused by consuming peat water without treatment including making teeth brittle due to acidic water. And peat water also contains organic or inorganic substances that can disrupt the body's metabolism. Keywords: Activated Carbon, Alum, Color, Organic matte, Peat Water
Pengukuran Produktivitas Ozon Sebagai Oksidator Senyawa Organik Pencemar Wanda Suwarno; David Andrio; Jecky Asmura
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Ozone is one of strong oxidant agent with potential oxidation value of 2,08 eV. Character of ozone are sharp-smelling and an unstable form composed of three oxygen atoms (O). Since 1990s, the using of ozone developed very wide and rapidly where ozone is used for drinking water treatment and wastewater treatment, sterilization of food and equipment, preservatives and odor removal. Ozone known with radical hydroxyl (OH•) which easily react with organic or inorganic compounds. In this research aims to calculate and measure the productivity of ozone generator with brand ozonizer WS88011i. This research used oxygen from the ambient air as the feed gas. Productivity of ozone generators analysis by iodometry refers to the International Ozone Association Standarized Ozone Procedure Iodometric Method 001/1996. The results showed the productivity of ozonizer WS88011i based on corona discharge method can produce dosage of ozone with range 0,239 - 0,264 g/hour.Keywords: ozone, ozone generator, productivity of ozone
Adsorpsi Zat Warna Methylene Blue Dengan Menggunakan Abu Sawit Sebagai Adsorben Rizaldi Riski Irawan; Edy Saputra; David Andrio
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The industrial waste especially textile waste is one of the causes of environmental problems that require effective and efficient processing. Adsorption is a separation method that is simple, easy to operate, flexible, affordable cost anddoes not produce toxic products. The purpose of this study calculates theefficiency of decreasing the concentration of the colors contained in metyhleneblue dye and studying the adsorption capacity to variations in pH 2, 4, 6, and 8, adsorbent mass variation 1; 1,5; 2; and temperature variation 40º, 60º, and 80º. The maximum wavelength of the dye methylene blue 660 nm.The efficiency of 98,07 % decline in the highest concentration. Isothermcorresponding to methylene blue dye adsorption by spent bleaching earth isLangmuir isotherm with adsorption capacity to variations in pH of 4,592 mg/g, the adsorbent mass variation of 4,592 mg/g, the temperature variation of 3,565mg/g.Keywords: Adsorption, Methylene Blue, Fly Ash, Efficiency Decreased Concentration, Adsorption Capacity
Performa Kompor Gasifikasi Champion Stove Retna Julita; David Andrio; Hari Rionaldo; Zulfansyah Zulfansyah
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Energy requirements for household cooking needs still depend on LPG (Liquefied Petroleum Gas). However, the lack of LPG supply and poor distribution are still obstacles in the community. Biomass waste is one of the alternative fuels for society so that cooking energy needs can be met. The objective of research is to study the effect of type of biomass and biomass size on the performance of gasification stoves by using a water boiling test (WBT) analysis. The experiments were carried out in batches with two WBT phases, namely cold start and hot start. The first stage was a cold start, where the tester uses a stove at room temperature an a number of fuels to boil 2.5 liters of water in a standard pan. The second stage was called the hot start test, where water is boiled with a hot stove with the aim of identifying the difference in the stove’s power when it’s cold and when it’s hot. In addition, the flame temperature and stove operating time are the performance parameters of the stove champion gasification stove. Water content for each biomass used is between 10-13%. The resulting flame color is reddish yellow with a fire height of 30-72 cm. The maximum flame temperature produced by the stove is 806,3 oC using mahogany wood. Key words: biomass gasification, gasification stove, water boiling test (WBT).
Penyisihan Nh3 Pada Grey Water Dengan Menggunakan Sequencing Batch Biofilm Reactor Kiki Ramadanti; Shinta Elystia; David Andrio
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

Domestic wastewater based on its characteristics is divided into two type which is black water and grey water. Grey water that directly flowed into the environment is one of the main causes of water pollution. The high content of organic matter causes grey water must be treated. Microorganisms can be use to treat this grey water one of them is microalgae Chlorella sp which consume organic matter as a source of nutrients for its growth. In this study, the addition of the Kaldness 1 (K1) biocarrier as a medium for attaching microorganisms were performed on the Sequencing Batch Biofilm Reactor (SBBR) process. Microalgae Chlorella sp. grown as suspended in grey water and attached to Kaldness 1 (K1). This study aims to examine ammonia parameters in grey water. Variations that use in this treatment are reaction times of 60, 90 and 120 minutes and media filling volumes of 0, 20, 40 and 60%. The best results for ammonia removal was 83% in a reactor filled with 20% Kaldness 1 as biocarrier and a reaction time of 120 minutes.Keywords: SBBR, Biocarrier Kaldness 1, Chlorella sp., Grey Water.
Analisis Sebaran Kebakaran Lahan Kota Pekanbaru Terhadap Perubahan Iklim Keke Nur Aini; Aryo Sasmita; David Andrio
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

Climate change is a phenomenon that occurs not only due to nature, but also from the intervention of human actions. Climate change will caused vulnerability in an area due to changes in environmental conditions on physical, chemical and biological. The purpose of this study was to find out how the spread of land fire disasters in the City of Pekanbaru to climate change so that mitigation and adaptation measures can be taken in Pekanbaru City. The results of the study found that the sub-district that occurred in the field of fire was Payung Sekaki, while the sub-district which occurred in the field of fire was Pekanbaru City and Senapelan.Keyword: climate change, field of fire, mitigation-adaption, vulnerability
Pengaruh Konsentrasi Dan Waktu Aktivasi Adsorben Spent Bleaching Earth (SBE) Terhadap Luas Permukaan Ulfah Nurulita; Elvi Yenie; David Andrio
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Spent bleaching earth (SBE) is solid waste that is produced from the bleaching industry of palm oil (CPO). In principle, SBE can be regenerated and reused as an adsorbent, but its adsorption capability is limited. This weakness can be overcome through an activation process using one type of mineral acid such as hydrochloric acid (HCl). HCl as a chemical activator can reduce the moisture content in the resulting adsorbent and can dissolve impurities so that more adsorbent pores are formed. This study aims to determine the effect of the effect on HCl concentration and contact time of iodine activation number and SBE surface area. Keywords: Adsorbent, Activation, HCl, Spent Bleaching Earth.
Co-Authors Achmad Noerkhaerin Putra Adillah, Muhammad Iqbal Adinda Ryvania Abrir Adrianto Ahmad Adrianto Ahmad Agustinus Lamhot Viraro Aini, Keke Nur Alfi Aulia Rahman Amarullah Amarullah Amir Hamzah Andhini Getha Kusuma Anggraini, Melina Dwi Annisa Nur’alifa Anysha Lankari Halim Aprilya, Sondang Ita Aryo Sasmita Aurelia, Keyla Azzah Fizda Bagus Anugrah Bahruddin Basopi, Hasbi Cahyani, Anugrah Christiani Widia BR Karo Daniel Ilham Wahyudi Davidson Davidson Dessy Natalia DESSY NATALIA Dewi Fitria Dikki Awanda Dinil Fitri, Shafira Dzaki Furqoon Edward HS Eko Hendi Saputra, Eko Hendi Elvi Yenie, Elvi Ester Melinda Evelyn Evelyn EVELYN EVELYN Fachry Abda El Rahman Fadhila Fadhila Fatra, Waman Ferdy Ashari Syawal Fikri Julian Fri Murdiya, Fri Gusti Rahayu Hadi Purnama Putra, Hadi Purnama Hari Rionaldo Hasmad Setyadi Ikhwanul Ikhsan Indra Hidayatul Mubarah Intan Sri Rahmi, Intan Sri Ivnaini Andesgur Jecky Asmura Keke Nur Aini Kesni savitri Kesni Savitri Khalidazia Putri Kiki Ramadanti Kiki Ramadanti Laksono Trisnantoro Lilya Irsianti Fadlilah Lita Darmayanti M Caesar Grendi M Kamal Syah Mahardika, Dewa Ayu Divia Pradhaswari Marisa Handajani Marisa Handajani Maulani, Annisa Maulidya, Syukri May Kristina Maya Ratna Sari Medio Novindra Putra Bayu Mindriany Syafila Mora Rahmayuanda Muhamad Ghifar Alharis Muhamad Gifari Muhammad Al- Hafizd Muhammad Azmi Muhammad Faisal Dharma Muhammad Mardhiansyah Muhammad Reza nadeak, Parade Naomi Ebinasari BR Sembiring Natalina, Riani Nazaris, Nazsha Nayyazsha Nazaris, Nazsha Nayyazsha Niko Ronaldo P. S Novalina Annisa Yudistira Nurul Annisa Pagattari, Hirda Nopma Parlaungan Hasibuan Prayoga Wiguna Priyambada, Gunadi Putri, Gustriana R. Rindu Permatasari Rahmadini Setianingsih Ramadhan, Gentha Ramida Elisa Kristiani Simanjuntak Reno Susanto Retna Julita Retno Dwi Pangastuti Rika Kristin Riri Shania Risma Nopita Risma Nopita Rizaldi Riski Irawan Rudhi Andreas Komang, Rudhi Andreas Sanny Amir Arasy Saputra, Muhammad Ramadhan Sari, Sunitha Shella Zahrawani Shifa Rayni Efendi Shinta Elystia Shinta Nurdiyanti Sinta Sinta Sisri Wantri Sanjaya Manalu Siti Aisyah Sukma Sri Rezeki Muria Sunitha Sari SUSANTO, RENO Syamsiar, Syamsiar Syarfi Daud tania, Nindy Tanjung, Munir Topan Herianto Trio Yudha Putra Ulfah Nurulita Ulva Seprizal Waman Fatra Wanda Suwarno Yohanes Yohanes Z Zulfansyah Zafira, Nesa Zuchra Helwani Zuchra Helwani, Zuchra