ABSTRACT The demand for methyl chloride in Indonesia still relies heavily on imports due to limited domestic production. This study aims to develop a preliminary design of a methyl chloride plant using methanol and hydrochloric acid through a hydrochlorination process, with a distillation column as the main separation equipment. The methodology includes designing the reaction process in a fixe…
ABSTRACT Poster presentation is one of the prerequisites for completing the study program in the Electrical Engineering Department at the University of Riau. This research aims to design and develop an Immersive Virtual Poster Day application based on Android using the Unity XR Interaction Toolkit as an interactive and immersive platform for academic poster exhibitions. The application is desi…
ABSTRACT The advancement of information technology has encouraged various business sectors to utilize web-based information systems to improve efficiency and expand marketing reach. Arif Ban, a business engaged in the sale of tires and rims, currently does not have a digital sales system to support its business processes effectively. Therefore, this study aims to design and develop a web-based…
ABSTRAK Tahu Pak Budi Factory is a small and medium-sized enterprise (SME) engaged in tofu production and located in Tarai Bangun Village. Since its establishment, the factory has used manual systems for recording sales, orders, and finances, leading to inefficient operations and limited market reach. To address these issues, a website-based e-commerce application was designed and developed to…
ABSTRACT The advancement of Internet of Things (IoT) technology enables the automation of intelligent and efficient office systems. This thesis presents the design and implementation of an IoT-based Smart Office system consisting of two main components: an electronic device control system and an RFID-based employee attendance system. The system employs ESP32 and ESP8266 microcontrollers integr…
ABSTRACT Riau Province possesses significant tourism potential; however, a portion of its residents tend to prefer tourist destinations outside the region, such as West Sumatra. One contributing factor is the lack of an information system capable of providing personalized tourism recommendations. This study aims to develop a tourism recommendation website based on a Hybrid Recommender Syst…
ABSTRACT We are entering an era of energy transition, in which the use of fossil fuels is being increasingly replaced by new renewable energy sources, which are considered to be environmentally friendly and low in carbon emissions. This can be seen in the increasing number of decentralised power plants (PT), which are integrated by new renewable energy plants, one of which is the solar power p…
ABSTRACT Activated carbon is widely known as an adsorbent material in various purification applications, including in the processing of liquid smoke. This study aims to determine the effect of temperature and activation time of activated carbon calcination on purification of liquid smoke. Dry oil palm frond waste with an amount of 6 kg was carbonized using the torrefaction method producing a c…
ABSTRACT Activated carbon is widely known as an adsorbent material in various purification applications, including in the processing of liquid smoke. This study aims to determine the effect of temperature and activation time of activated carbon calcination on purification of liquid smoke. Dry oil palm frond waste with an amount of 6 kg was carbonized using the torrefaction method producing a c…
ABSTRACT Oyster mushroom baglog waste is a residual growing medium left after oyster mushroom cultivation that is no longer productive if not managed properly, it can cause enviromental problems. This study aims to determine the effect of varying Promi concentrations and composting durations on the quality of compost produced from oyster mushroom baglog waste. The method used is anaerobic deco…
ABSTRACT This study aims to empirically determine the effect of managerial entrenchment, CEO overconfidence, and accrual earnings management on audit report readability in banking companies listed on the Indonesia Stock Exchange from 2021 to 2023. The population in this study are all banking companies listed on the Indonesia Stock Exchange in 2021-2023, namely 47 companies. The sample in this …
ABSTRACT Recausticizing is a process of chemical recovery plant that is tasked with converting green liquor into white liquor as the main product and lime mud as a by-product. Lime mud is one of the by-products of recycling in the pulp industry process produced from the recausticizing process which has a high CaCO3 content so that it can be used as the main material for the calcination process…
ABSTRACT The rotogravure printing technique is a direct printing technique. Printing techniques in deep printing or rotogravure include direct printing techniques, namely printing raw materials directly in contact with the gravure cylinder as an image carrier. During the production process, there are often production defects such as printing defects. The existence of printing defects in wrappi…
Narrow Barred Spanish Mackerel (Scomberomorus commersonii) is a high economic value fishery commodity in Indonesia, but its utilization is still limited to the meat, while the bones as waste have not been optimally utilized. Fish bones contain high calcium and protein so they have the potential to be used as nutritious food ingredients, one of which is as raw material for crackers. This study a…
ABSTRACT Wastewater treatment is an important part in supporting the sustainability of pulp and paper industry operations. One of the stages used to improve wastewater quality is the coagulation-flocculation process in tertiary treatment. This study aims to evaluate and compare the performance of two types of coagulants, namely aluminum sulfate (alum) and polyaluminium chloride (PAC), which ar…
Pasar Lama Pangkalan Kerinci is the main smoked fish trading center in Pelalawan Regency, Riau. The marketed smoked fish consists of various species such as catfish, baung, and catfish originating from Kampar, Langgam, and Kerinci areas. These products are traditionally processed with limited sanitation, potentially leading to quality degradation and microbiological contamination during storage…
This study aims to determine the effect of tilapia bone meal fortification on the quality of crispy brownies and to determine the concentration of tilapia bone meal on the quality of cispy brownies. The method used in this research is an experiment with anon-factorial completerandomized design with fourtreatment levels, namely without tilapia bone meal fortification 0% (B0), tilapia bone meal f…
This study analyzed the productivity and business feasibility of folding bubu capture fisheries in Patam Lestari Village, Batam. Data were obtained through surveys and interviews with fishermen related to the number of catches, operational costs, and productivity factors. The results showed that the highest productivity per trip reached 7 kg, while the efficiency per gear was higher for fisherm…
This study aims to assess the level of satisfaction among fishermen regarding port authority services at the Nizam Zachman Oceanic Fishing Port (PPS Nizam Zachman) in Jakarta. As Indonesia’s largest oceanic fishing port, PPS Nizam Zachman plays a crucial role in supporting national capture fisheries activities, particularly for tuna fishermen. A survey method was employed, collecting primary…
This study assesses the pollution load capacity of the Tapung Kiri River, Kampar Regency, Riau Province, Indonesia, using the QUAL2Kw model to evaluate its ability to assimilate organic and inorganic pollutants under anthropogenic pressures. The study was conducted along a 29 km river stretch from Petapahan village (upstream) to Bencah Kelubi (downstream). Field data collected from three sampli…