This study aims to analyze and identify the accuracy of lathe components (MB5) type G.D.W LZ350 using ISO 1708 standards. Accuracy measurements are carried out to ensure that the lathe meets international quality standards set by ISO. The methodology used includes measuring key components of the lathe with measuring instruments that have been calibrated according to ISO 1708 standards. …
CV. Sispra Jaya Logam is a company engaged in metal casting and machining, producing items according to customer orders. In a manufacturing company, the production process is one of the important parts related to the output to be produced. Therefore, the company must identify value added and non value added activities to create an effective production process. Systematic layout planning is …
CV Indoteknik is an UMKM scale company which operates in the manufacturing sector, especially diesel and automotive spare parts. One of the items that is widely produced is Slot Cutter Cylindrical Tubes. This research uses the Systematic Layout Planning method to design, change and propose proposed layouts. Create an Activity Relationship Chart diagram to determine the relationship between…
A vortex turbine or vortex turbine is one of the reaction turbines that utilizes artificial whirlpools to rotate the turbine blade and then the whirlpool energy is converted into rotational energy. One way to optimize a vortex turbine Runner is to vary the Runner diameter. In the research conducted by the author, the optimum diameter of the curved type vortex turbine Runner was determine…
This research aims to design a steering system for the Parameswara electric vehicle, a Formula Student type, using a rack and pinion system. The steering system is a mechanism in a vehicle that allows the driver to control the direction of the vehicle's movement. This system consists of several components that function to transfer the driver's input to the front wheels of the vehicle, a…
CV. Cap Pelangi is one of the UMKM in the food sector that produces red crackers. CV. Cap Pelangi can produce around 450-500 kg of red crackers per day. Systematic Layout Planning is one of the procedures that outlines the steps in the production layout planning process. The application of the 5S method is used to create workplace order, improve work discipline, enhance work efficiency,…
Humans since the beginning have always lived by requiring energy for the continuation of life, like renewable energy such as sunlight and water, there is also energy which in modern times has used a lot of non-renewable energy. Reserves of non-renewable energy source originating from within around the world are increasingly depleting, while the world’s energy needs are increasing fro…
Leachate causes environmental pollution due to the content of toxic compounds and pathogenic microorganisms through garbage piles, so it is necessary to process so that the leachate that is disposed of is safe and does not harm the environment, one of which is by using SBR technology. This study aims to isolate COD, TSS, VSS, pH and ammonia in leachate. The processing process in this …
Silica fume and rice husk ash are among the residual materials or waste, which have not been optimally utilized, both by society and industry. Meanwhile, paving blocks are still widely used as building materials. Until now, the use of paving blocks still raises environmental issues. Therefore, this research aims to create alternative paving blocks that are more environmentally friendly,…
The large production of Crude Palm Oil (CPO) causes a large amount of Palm Oil Mill Effluent (POME) to be produced. POME contains high organic substances and is rich in nutrients N, P, and K. Recently, One of the alternatives treatment used to treat POME is using Granular Indigenous Microalgal-Bacterial Consortium (GIMBC), which is a microalgae-bacteria aggregate with a solid and compact…
The increasing human population is directly proportional to the amount of wastewater produced. The greater the use of water, the greater the domestic wastewater produced. In general, domestic wastewater treatment uses activated sludge. However, this treatment has several drawbacks such as not being able to remove nutrients, requiring large electrical energy for aeration, and further slu…
Domestic wastewater is a complex environmental problem that requires effective treatment technologies. The most widely used biological treatment today is Conventional Activated Sludge (CAS), but CAS has shortcomings such as poor sludge settling performance, high energy consumption, requires a large area, long hydraulic retention time, produces CO2 gas and produces excessive sludge and l…
Palm Oil Mill Effluent (POME) is wastewater derived from the production of crude palm oil (CPO) that can pollute water bodies. Generally, POME is treated using conventional systems, but the treated POME still contains nutrient-rich organic compounds such as carbohydrates, organic acids, and nitrogen. The remaining organic compounds can be utilized as a growth medium for microalgae and …
Palm oil production in Riau Province reached 8.97 million tons in 2022 along with the wastewater produced. Each ton of oil palm fresh fruit bunches will produce 0.7- 0.8 m3 of Palm Oil Mill Effluent (POME) which is treated with conventional systems. However, the conventional system produces greenhouse gases and residual nutrients that can be utilized by microorganisms through mutualism …
Indonesia's palm oil industry has increased by an average of 8% per year, resulting in an increase in wastewater. The production of one ton of palm oil will produce 2.5 tons of wastewater or Palm Oil Mill Effluent (POME) which is treated with an open pond system. The open pond system still leaves greenhouse gases (GHG) and nutrient content that can be utilized in the formation of Granul…
One of the current technological developments that is very rapid in society is motorcycles. The increase in the number of motorcycle transportation causes the use of lubricating oil to increase, because in general, every certain distance or range of 3,000 to 5,000 kilometers of lubricating oil must be immediately replaced with a new oil of 1 liter. Each replacement will certainly produc…
This research was carried out in a power plant unit with a total working area of 745 m2, which is a unit that is a source of electrical energy to support all activities at PT KPI RU II Sei Pakning. The source of electrical energy comes from a generator engine which operates continuously for 24 hours, producing continuous loud noise, which will increase sound exposure to workers and incr…
The growth in the number of car vehicles in Indonesia continues to experience development along with the use of oil as an engine lubricant that continues to increase every year. The availability of large amounts of used oil waste must be managed quickly because used oil is acidic and contains residues that are hazardous to the environment. The purpose of this study was to determine the …
The largest peatlands, reaching 21 million hectares, are found in Sumatra, Kalimantan and Papua. Peatland is an area of land composed of decomposed soil. Forest and land fires are natural disasters that often occur in Indonesia. Degraded peat, which dries out easily during the dry season, is the main trigger factor for peat fires. Large-scale clearing of peatlands by making channels/dit…
In the current digital era, libraries require efficient systems to assist users in discovering relevant and interesting books. This research proposes the implementation of the FP-Growth algorithm to develop a book borrowing recommendation system in libraries. The FP-Growth algorithm is chosen for its capability to handle large transaction data and to uncover significant associative pa…