ABSTRACT Banana peel waste remains underutilized. An alternative to maximize the processing of banana peel waste is to make food products that are useful as health drinks such as herbal drinks, but the main problem with herbal drinks is the bitter taste. Tannin, which causes the bitter taste in herbal drinks, can be reduced in raja banana peel herbal drinks by adding activated carbon. One meth…
ABSTRACT Sweet corn (Zea mays saccharata Sturt.) is a plant that has a delicious taste, is highly nutritious with a low glycemic index, and has a fast production period. The decline in sweet corn production is due to the fact that sweet corn cultivation has not been managed optimally, so one of the efforts that can be made to increase production is through fertilization. This study aims to…
ABSTRACT Sweet corn (Zea mays saccharata Sturt.) is an agricultural commodity that is highly favored by most Indonesians; however, its productivity declined 3.464 tons.ha⁻¹ in 2022 to 3.046 tons.ha⁻¹ in 2023. Sweet corn plants are influenced by both biotic and abiotic factors in terms of productivity, which can lead to a decrease in yield. The decline in sweet corn productivity is caused…
ABSTRACT Shallots (Allium ascalonicum L.) is a horticultural commodity with high economic value that is widely used as a cooking spice and traditional medicine. However, shallot production in Riau Province is still low and has not been able to meet the needs of the community. Low production is caused by soil factors, weather, and the use of less superior varieties. One solution to increase pro…
ABSTRACT The growth and yield of sweet corn plants were improved by administering cow biourine and K fertilizer. This study aims to observe the effect of the interaction of cow biourine and K fertilizer, the main effect of each and determine the best combination. The study used factorial completely randomized design with two factors. Factor I cow biourine consists of 3 levels (without cow …
ABSTRACT This study aims to compare the process parameters and pulp quality of normal kraft pulp (a blend of Acacia and Eucalyptus) and customized kraft pulp (100% Acacia) at specific production rates. The parameters analyzed include AA charge, H-Factor, tensile strength (in unbeaten condition), and the consumption of bleaching chemicals, specifically chlorine dioxide (ClO₂) and hydrogen per…
ABSTRACT Recovery boiler is a piece of equipment used in the pulp and paper industry that has two functions: recovering chemicals contained in black liquor for reuse in the cooking process and generating energy. Several components of a recovery boiler are very important for improving energy efficiency, one of which is a direct heater. The direct heater in a recovery boiler is used to heat blac…
ABSTRACT Magnesium sulfate (MgSO₄) has been proposed as an effective and economical alternative to chelating agents such as DTPA (Diethylene Triamine Pentaacetic Acid) in bleaching processes, particularly in the hydrogen peroxide (H₂O₂) bleaching method. MgSO₄ serves as a source of magnesium ions (Mg²⁺), which can compete with catalytic metal ions to bind to H₂O₂ or fiber surfac…
ABSTRACT The Multiple Effect Evaporator (MEE) is a critical unit within the Recovery boiler system in the pulp and paper industry, functioning to concentrate black liquor before combustion for energy and chemical Recovery. This study aims to analyze the Steam Economy value in the evaporator unit at PT Tanjungenim Lestari Pulp and Paper to evaluate the efficiency of steam energy utilization. Th…
ABSTRACT The baling line is the final stage of the process in the Pulp Dryer. At this stage, bales are packed into 1 unit with a weight of 2020 ± 9kg per unit and a height of 168 cm – 170 cm. The baling line often experiences downtime, which results in lost production time. This observation was conducted with the aim of minimizing downtime of the tying machine in the baling line of Pulp Dry…
ABSTRACT Filters are important components in oxygen production systems, especially in the pulp and paper industry, because they play a role in maintaining gas purity and the stability of the production process. This study aims to analyze the efficiency of primary and secondary filter usage and the effect of differential pressure on oxygen production capacity, by considering maximum capacit…
ABSTRACT One of the important parameters in the cooking process is the liquor to wood ratio (L/W ratio) which is the ratio between the volume of cooking liquid and the mass of wood used. An imbalance in the material balance in the impbin & digester unit can cause problems such as excess chemical liquor for the cooking process, chips that do not cook evenly. In this research, the focus is o…
ABSTRACT The cut-size machine is a tool used to produce standard paper commonly used in everyday document printing. However, in the production process, there are still defects that result in poor paper quality and do not meet the specified quality specifications. Therefore, this study entitled "Defect Analysis on Cut-size Machine A and Cut-size Machine B with Quality Control Method" aims t…
ABSTRACT The Folio Sheeter (FS) machine functions to change paper rolls into folio-sized sheets of paper. This final project report discusses efforts to "Minimize Folio Paper Defects Using the Statistical Quality Control (SQC) Method on Folio Sheeter A (FS A) and Folio Sheeter B (FS B) Machines". The purpose of this study is to identify the types of defects in paper products, apply SQC to …
ABSTRACT Electrolysis is an event where a solution will be decomposed into its ions, namely positive ions (cations) and negative ions (anions), when a direct electric current is flowed into an electrolyte solution through electrodes. In the electrolysis process, electrical energy (Power) is needed so that the electrolysis process takes place. The electrolysis process in the chlor-alkali indust…
ABSTRACT Electrolysis is the main process in the alkaline chlorine industry. Electrolysis is a method of separating compound bonds by passing an electric current through compound bonds. This study aims to analyze the effect of load variation in chlor alkaline electrolyzer on the performance of the electrolysis process in producing caustic soda (NaOH) and chlorine (Cl₂) in the pulp and paper …
ABSTRACT Pulp Dryer is part of the final process in pulp processing which aims to convert slush pulp into pulp sheet with the help of steam. To reduce steam consumption, it is necessary to analyze several factors that affect steam consumption. In this final project, the influence of temperature, pH and slush pulp freeness factors on steam consumption in the Pulp Dryer is studied. Some of the f…
ABSTRACT The process of chip filling into the digester is a crucial early stage in the pulp production process as it determines impregnation efficiency and delignification success, especially to produce high quality dissolving pulp. Optimizing chip load not only improves cooking efficiency but also directly influences mill productivity allowing a higher daily throughput of dry pulp per batch a…
ABSTRACT The woodyard department is a sector dedicated to the preparation of raw chip materials, starting from the arrangement of wood blocks, sorting the quality of logs or raw materials before the chipping process, sorting the size of the chips, and processing waste materials that have value such as processing unwanted bark in the pulping process into boiler fuel after going through several …
ABSTRACT Bleaching is an important step in the kraft pulp production process, as it plays a direct role in increasing brightness. Measuring brightness, strength and other characteristics is important to ensure that the pulp meets the desired standards. In this study, the focus is on the D1 stage of the bleaching process, which uses the active ingredient chlorine dioxide (ClO₂), with the aim …