Suchergebnisse

Introduction: The government of banyumas district by decree number: 660. 7776/2018 concerning the management of the waste in banyumas district, in which the President's decree strongly recommends the closing of the TPA on January 2, 2019 and urges the management of waste through non-governmental groups (KSM) in trash management 3r (main, reuse and recycling). The application of 3r activities in communities is still hampered largely by the lack of awareness of people sorting waste. The world health ministry of semarang, which has an open land of 2.3 ha (2.3 ha), has an average of 4 m3/ week organic waste. Thus selecting a comprehensive waste management by using a 10-panted run way method, so each week it is used to invert waste from tub one to tub the next. Based on the above description, the formula of the problem in this study is knowing the effectiveness of the waste turning engineering tools in supporting the waste processing process. Methods: Research and Development is a research method that uses to obtain or develop products and test the effectiveness of these products. The turning tool is designed to compare the effectiveness of the waste turning process before and after using the tool. This research was conducted at a waste processing place (composter) at Campus 7 Poltekkes Kemenkes Semarang. The population in this study were all of the campus residents' solid waste generation. The sample of this study was waste in each tub (from tub 1 to 10) compost processing volume of 0.5-4 m3 / week. This study used tables analysis and the average value calculated from the results of sieving the waste. Research and discussion: The design and assembly of a waste turning tool is appropriate and can support the composting process of waste at Campus 7 Purwokerto, Health polytechnic of Ministry of Health Semarang. The volume of waste in basins 1 to 10 is on average around 0.5-4 m3 / week, in each tub per week there is a decrease in waste by an average of about 8-9%, so that starting from basin 1 with a volume of waste 4 m3 / week decreasing in the basin 10 to 0.5 m3 / week. The comparison of manual waste reversal using a machine is as follows:Turning over manual waste takes about 5-7.5 minutes per basin with 4 workers, so it takes 50-75 minutes to reverse 10 basins. Turning the trash with a machine takes about 45-50 seconds withConclusion: A waste turning tool has been proven effective to assist and facilitate the process of waste reversal for the decomposition process in the composting basin at the campus 7 composting place.

Introduction:Air is a gas mixture that consists of several components and is spread throughout the area. Air pollution is the presence in the atmosphere in the form of solid particles, liquid droplets or gaseous components abnormally or in the presence in greater concentrations. There is an easy way to control air pollution by reducing the source of the pollution. However, control is part of air health as with the concept of water treatment. The purpose of this study was to design a device to defray the particles of spray tower dust at a low cost. Methods: This type of research used a pre experiment with the aim of testing the Spray Tower tool in reducing the levels of dust particles from the combustion process with coal briquettes, rice husks, and old tires. The pre test was coal briquettes, rice husk ash, and tires without being sprayed with water. The post test were coal, rice husks, and tires with sprayed water (with the help of 1 nozzle, 2 nozzles and 3 nozzles). The independent variable is the number of nozzles sprayed, the dependent variable includes a decrease in the level of dust particles while the disturbing variable consists of sprayed water discharge, weight of coal briquettes, rice husk ash and tires, air temperature, humidity, height of spraying tower, nozzle diameter. Result and discussion: of the study the average air temperature was 20.17oC, humidity was 82%. The water discharge for 1 nozzle is 47.76 ml / second, 2 nozzles are 83.75 ml / second and 3 nozzles are 113.76 ml / second. The initial particle content of old tires was 3,020,000 μg / m3, coal briquettes (420,000 μg / m3) and rice husk ash (110,000 μg / m3). The average content of used tire dust particles with one nozzle (1,273.33.33 μg / m3), coal briquettes with one nozzle (361,666.67 μg / m3) and rice husk with one nozzle (23,333.33 μg / m3). The average dust particle content of old tires with two nozzles (16,666.67 μg / m3), coal briquettes with two nozzles (195,000 μg / m3) and rice husks with two husks (18,333.33 μg / m3). The average content of used tire dust particles with three nozzles (13,333.33 μg / m3), coal briquettes with three nozzles (13,333.33 μg / m3) and rice husks with three husks (13,333.33 μg / m3). Conclusion:When compared with Government regulation no. 41 of 1999 is still far from the standard 230 μg / m3 (24 hours), 90 μg / m3 (1 hour). Suggestion It is necessary to conduct other similar studies with a larger sample size, varying air pollution groups, modified models and diameters, controlled gross flow rates.