http://repository.president.ac.id/xmlui/handle/123456789/12768 2026-04-21T01:32:19Z http://repository.president.ac.id/xmlui/handle/123456789/12772 DESIGN IMPROVEMENT FOR TEMPORARY HAZARDOUS AND TOXIC WASTE STORAGE AT PT. X Pakpahan, Helen Steavy A gap in the temporary storage area for hazardous and toxic waste at PT X was discovered when observations were made. The results of this observation are compared with the applicable regulations, namely Minister of Environment and Forestry Regulation Number 6 of 2021. Several of these conditions give rise to issues, namely waste that is stored is not protected from rain and covered, the condition of the packaging is leaking, rusty and damaged, does not have first aid facilities, area of storage space does not comply with the amount of hazardous waste stored. Things that need to be improved based on the impact assessment are increase the frequency of waste removal by vendor from 2 times a month for transportation to 4 times a month. To ensure waste transportation is on schedule, a new waste transportation SOP has been created. Adding a canopy to the front of the building and a concrete wall will be built on the back wall of the building to prevent rain from entering the building. Replace the drum made of iron due to safety against spills or leaks, non-flammability and ability to transport hazardous and toxic types of waste. And the last is that the first aid box will be installed in buildings using type A. An improvement design that can be proposed to increase the storage of hazardous and toxic waste is on the roof of the building, namely a canopy will be added so that the front of the building is not exposed to rain. Meanwhile, a 1.7 meter high concrete wall will be built at the back of the building so that rain does not hit the back of the building. The building also designed facilities such as a first aid box, lighting and fire extinguisher. 2024-01-01T00:00:00Z http://repository.president.ac.id/xmlui/handle/123456789/12771 ANALYSIS OF WASTE GENERATION AND COMPOSITION IN AN OFFICE (CASE STUDY: PT FD, CIKARANG, INDONESIA) Rismawati, Fidary Aufa Dhiya Solid waste is one of the major problems in Indonesia, and the lack process of treatment is still the biggest factor to decrease environmental quality. Based on the SIPSN calculated the amount of solid waste along 2021 is 29,567,204 ton. The higher amount of waste has a relation with the social aspect, especially in individuals' knowledge, attitude, and behavior toward waste management. In daily work activities, especially in the office, it can produce even the slightest waste. The waste can be generated from any activity. In this case, it should be noted that the sources of waste generation at PT FD include 8 office areas. Each area has its own dominant characteristics of waste inorganic waste and organic waste. To find out the current condition at PT FD, waste generation, waste composition, knowledge, attitude, and reward affect employees' compliance regarding the waste segregation program at the PT FD office. In this result, the population used were employees from PT FD. Using purposive sampling refer to the SNI 19-3964-1994 along 8 days, observation method to collect the data and used logistic regression data analysis method. Logistic regression analysis aims to determine whether or not there is an influence of two or more variables X on variable Y (dichotomous). The amount of average waste is 0.028 kg/person/day or 0.607 L/person/day, and daily waste is 1.311 kg/day of average waste weight with 25.157 L/day as the average volume. The dominant waste from paper (43%), plastic (27%), and last is leftover food (24%). According to the analysis result, the employee’s attitude and the power of reward have a positive effect on compliance with waste segregation. 2024-01-01T00:00:00Z http://repository.president.ac.id/xmlui/handle/123456789/12770 AERATION STUDY ON REDUCING COD LEVELS OF RIVER WATER USING VARIATIONS AIRFLOW RATE AND TIME (STUDY CASE: CILEMAHABANG RIVER) Silalahi, Novelia The Cilemahabang River has experienced a decrease in water quality caused by human activities such as settlements and especially from industry. Environmental degradation is caused by waste that isn't treated and discharged directly into the river, as well as by the high level of development along the rivers, which also reduces the capacity of the rivers to carry pollution. Increased organic matter in water will have an impact on reducing water quality, resulting in a decrease in dissolved oxygen. A water pollution level test can be carried out to determine the presence of these pollutants, using a COD test to determines the oxygen required by oxidizing agents to oxidize organic matter in water. One way is to use aeration technology, which is a method of adding oxygen to the waste solution to increase the amount of dissolved oxygen so that it can provide oxygen to decomposing microorganisms to reduce the levels of organic matter in the water. The research objective is to determine constant value of the kinetic rate removal reaction. The results showed that for each treatment of aeration and control is effective percent removal in COD. The constant value of the kinetic rate COD removal is 0.0005 hour1 in the regression linear 0.9983 at an airflow rate 4.5 L/min. And for controls in the third sample with removal constant value is 0.0002 hour1 in regression linear 0.9944. 2024-01-01T00:00:00Z http://repository.president.ac.id/xmlui/handle/123456789/12769 REDESIGN OF HAZARDOUS AND TOXIC WASTE TEMPORARY STORAGE IN PHARMACEUTICAL COMPANY (STUDY CASE: PT. CPR) Prasetyo, Bima Ramadhan PT CPR is a subsidiary of one of the largest pharmaceutical companies in Indonesia. In its production process, PT CPR produces hazardous and toxic waste, which, of course, makes PT CPR have an obligation to manage the hazardous and toxic waste it produces. However, based on observations, the existing temporary storage areas do not meet the standards set by the government. Therefore, the temporary storage area at PT CPR needs to be redesigned according to the standards set by the government. This research aims to find a temporary storage place that complies with government regulations for PT CPR and is equipped with calculations of the facilities needed. The method used is to record the type, characteristics, and amount of waste produced by PT CPR from the existing logbook, followed by existing observations, and then proceed with calculating facility needs according to SNI and individual calculations. After obtaining the data, redesign is carried out by adjusting the calculation results, determining the facilities needed, and making design proposals. The research results show that PT CPR requires a temporary shelter measuring 19.5 m x 10.8 m x 4.5 m to accommodate waste for 1 month, with the number of packages needed being 59 jumbo bags and 15 drums. The total ventilation required is 21.06 m2 and is made of 105.9 m2 . The size of the spill container required for Toxic Liquid Waste is 2.2 m x 0.5 m x 1 m, and for Ignitability Liquid Waste is 5.5 m x 0.5 m x 1 m, also equipped with a channel made with a width of 0.15 m and a height of 0.15 m. The temporary storage area also has a 4 m wide Forklift Lane for loading and unloading activities. By conducting research, we can find out the regulations that apply to temporary storage areas in Indonesia and how to calculate the required facilities. 2024-01-01T00:00:00Z