ABSTRACT Indonesia as a developing country currently is trying to fulfill the needs of various chemicals to accelerate industrialization process. The need for lactic acid in Indonesia is currently still met by imports. Based on BPS 2021 data, total lactic acid imports in 2020 is amounted to 8,308,802 Kg. Therefore, efforts are needed to develop domestic lactic acid production to reduce depende…
ABSTRACT Ethylene dichloride or 1,2-dichloroethane with the molecular formula C2H4Cl2 is a reactive and highly toxic organic compound characterized by a clear, oil-like liquid with a chloroform-like odor. The high demand for EDC (ethylene dichloride) in Indonesia is still met through imports from several countries such as China, the United States, Germany, Korea, and Qatar. The production …
ABSTRACT The utilization of solar energy to generate electricity using solar panels is still very limited at present. Indonesia's astronomical location, which results in constant sunlight throughout the year, highlights the need to harness the solar potential in Indonesia as effectively as possible. The increasing use of gadgets in Indonesia also emphasizes the necessity of having available po…
ABSTRACT Purnama beach is located in Purnama Village Dumai City, Riau. Coastal areas have problems that often occurs, one of them is erosion, Efforts That’s can be made in overcoming coastel erosion are by making beach safety buildings. In order for a beach safety buildings to function optimally, it is necessary to knows its effectiveness and performance. This study aims to find information …
ABSTRACT A numerical model of signalized intersection performance analysis based on the Highway Capacity Manual of Indonesian 1997 (MKJI 1997) is required to calculate the performance of signalized intersections in the effective and efficient manner. The modeling is formed by algorithmising the process of calculating the performance of signalized intersections based on MKJI 1997. The issue tha…
ABSTRACT The Pekanbaru City Population and Civil Registration Service recorded that the population of Pekanbaru City in 2022 will reach 1,085,000 people. This figure has increased by 11 thousand people from 2021 which amounted to 1,074,000 people. An increase in population can cause many problems, especially transportation problems such as the high number of traffic accidents. Data from the Pe…
ABSTRACT Aniline is an organic compound which is included in the aromatic compounds with the molecular formula C6H5NH2. Aniline is used as an initial raw material for the synthesis of dyes, vulcanization accelerator for rubber, production of herbicides, pesticides and medicines. Its most important use is found in the synthesis of methylene diphenyl diisocyanate (MDI) which is a precursor to po…
ABSTRACT Tertiary Butyl Alcohol is one of the four isomers of butanol which is also known as Tertiary Butyl Alcohol, 2-Methyl-2-Propanol, Trimethyl Carbinol, often abbreviated as TBA an has the molecular formula C4H9OH. The main raw materials used in making Tertiary Butyl Alcohol are isobutene and water. The plant is planned to operate for 330 days per year and work continuously for 24 hours p…
ABSTRACT Phenol or hydroxybenzen is an organic compound that has one hydroxyl group attached to an aromatic ring with the molecular formula C6H5OH. Phenol is one of the intermediate materials needed for downstream industries and advanced intermediate industries including as raw material for the manufacture of bisphenol-A used in the plastics industry, raw material for the caprolactant industry…
ABSTRACT The quality of WiFi signal is one of the critical factors influencing the performance of wireless networks in dense and complex environments. Proper placement of access points (APs) in an area can enhance network coverage and optimize signal quality. However, determining the optimal location for access points in complex environments often presents a challenging and intricate problem. …
ABSTRACT Crickets, small insects known for their distinctive sounds, are often heard at night. Communities cultivate crickets due to their economic potential as livestock feed, food ingredients, medicinal resources, and cosmetics. In cricket farming, the breeding of eggs is a method to sustain cricket regeneration. Environmental factors such as temperature and humidity can influence the hatchi…
ABSTRACT Hydropower plants (HPPs) utilize water as their primary resource to generate electricity. One crucial parameter for HPPs in electricity generation is Specific Water Consumption (SWC), which represents the amount of water required to produce 1 kWh of electricity. This research aims to analyze SWC and efficiency in the Batang Agam Hydropower Plant. The methodology involves collecting da…
ABSTRACT Rain is a phenomenon that often occurs on most continents. The amount of rain that falls in a certain time period and a certain area is called rainfall. Observational rainfall data is obtained using the River Watershed (DAS) approach. However, the watershed does not cover estuary areas which are dominated by mangrove/peat forests. PT. Bumi Palma Lestari Persada is a company located in…
ABSTRACT Laboratories usually have different tools, materials, documents, and a lot of other content. At the University of Riau, especially the Faculty of Engineering, it is filled with many laboratories. Starting with a computer network laboratory and chemical laboratory, machine laboratory, and many more. Currently information about laboratories cannot be found on the internet, and it is sti…
ABSTRACT Clay or loam has very low permeability and is plastic at moderate water content. Therefore, this research aims to determine the water content and plasticity of clay in the basic material for making red bricks taken from two different places, namely Jalan Badak Ujung, Tenayan Raya District, RT 04 RW 06, Pekanbaru City and Jalan Sialang Bungkuk, District Sialang Sakti, RT 02 RW 08, Pekan…
ABSTRACT Road damage is one of the things that must be addressed at this time, one of which is on the street Karya road in Pekanbaru City with the total length of the road being 1,800 meters and the road width being 6 meters, making it uncomfortable for motorists who pass through the road so repairs are needed on the road starting by knowing the types of damage that exist. The aim of this resea…
ABSTRACT Rainfall is one of the important parameters in water resources planning and management. This study aims to model rainfall in Siak District using Neyman-Scott Rectangular Pulse modeling (NSRP). NSRP forecasting is used to generate low-timescale rainfall data. The results of NSRP modeling carried out Mean Absolute Error (MAE) testing get a value of 0.051 mm which is close to zero. This …
ABSTRACT Traffic accidents are a problem that often occurs on the highway. Traffic accidents cause negative impacts that are very detrimental, including spending costs when an accident occurs and the worst impact is causing fatalities. The purpose of this study was to determine the characteristics of accidents and the amount of traffic accident costs on road section Batas Kabupaten Kampar – …
ABSTRACT A pharmacy is a place to sell medicine or make medicine. Every day there will be sales and purchase transactions for medicines at the pharmacy. Drug sales and purchase transactions continue to increase every day and the pharmacy sales transaction data is only stored as an archive and it is not known what the use of the stored data is. Many problems occur in pharmacies, such as unmonit…
ABSTRACT Hydropower is a power plant that relies on the potential and kinetic energy of water (waterfalls) to generate electricity. This study aims to examine the calculation of the production of electrical energy in the Koto Panjang 3 x 38 MW Hydroelectric Center (PLTA). The Koto Panjang hydropower plant utilizes a reservoir that dams the Kampar and Mahat rivers in West Sumatra and Riau. The …