REDESIGN OF TPS 3R AND INORGANIC WASTE TREATMENT INSTALLATION AT TPS 3R DESA MERBUNG, SOUTH KLATEN, KLATEN, CENTRAL JAVA

• Main Author: Saraswati, Dianisti
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/39916
• Institution: Institut Teknologi Bandung

An inorganic waste treatment unit is planned to be built at the location of 3R TPS in Merbung Village, Klaten Selatan, Klaten, to reduce the waste dumped at Troketon landfill. In Klaten Selatan there are 43,964 people from in 11 villages and 1 administrative village, with a total waste generation ± 11 tons / day. Public awareness and contribution about the importance of minimizing waste at the source are still low. In addition, the residents of South Klaten have not all received the services of transporting waste to the TPS, so that there are still some people who burn their waste or throw it into the river. TPS in Merbung Village has potential to manage waste in South Klaten Subdistrict, because it is the only one 3R TPS in South Klaten. However, the 3R TPS existing did not operate even though it has been equipped with several waste treatment facilities. Data collecting on the waste generation and composition in South Klaten are based on SNI 19-2964-1995 and supported by secondary data. Based on the result,, the average solid waste generation in South Klaten is 0.23 kg/person/day with a volume of 1.525 L/person/day. Plastic is the largest component of inorganic waste. Inorganic waste treatment process planned at the location of the 3R TPS in Merbung Village are waste separation, plastic recycling (pelletizing) with an extruder machine, collecting economically valued inorganic waste and selling it to collectors. The waste treatment plant is projected to reduce waste by 70% in 2030 and it is planned to be built at the location of 3R TPS in Merbung Village with total area is about 500 m2. EXECUTIVE SUMMARY Klaten is one of the city in Central Java which has total area of 655.56 km2 with population of 1,167,401 peoples (BPS, Kab. Klaten 2017). Klaten is divided into 26 districts, one of them is the South Klaten where study location for this final report took place. South Klaten divided into 11 villages and 1 sub-district with a total area of 14.44 km2 it has a population of 44,475 (Kecamatan Klaten Selatan dalam Angka, 2018). South Klaten area receives garbage collection services by Dinas Pekerjaan Umum dan Perumahan Rakyat (DPUPR) of Klaten. South Klaten district has a TPS 3R building in Merbung Village. Garbage collection from source to transfer station is the authority of each village / sub-district in Klaten, while transportation of waste from TPS to processing in TPA is handled by DPUPR Klaten. The Klaten Environmental and Forestry Service (DLHK) is responsible for managing waste in sources that include waste bank operations and 3R polling stations belonging to several villages / kelurahan, as well as disseminating information to the community regarding waste management. There are 207 garbage collection points in Klaten which are the waste management service areas that will be transported to the Troketon TPA by the PR DPU in Klaten. South Klaten sub-district has 30 collection points, one of which is a polling station in Merbung Village. Waste management in Klaten, especially in South Klaten Subdistrict, is still in the form of waste-dumping. Waste from the source is transported by TPS officers with a cart to be taken to the Merbung Village TPS. TPS in Merbung Village receive rubbish on average 6-10 m3 / day. The garbage collected at the TPS will be transported to the Troketon landfill by a 10 m3 dump truck belonging to the PR DPU, once every two days on weekdays. The 3R TPS building in Merbung Village is located behind the operational TPS of Merbung Village. This 3R polling station is the result of cooperation from the Kotaku Program in Klaten District in 2017, which has been equipped with organic waste processing facilities, chopping machines, and compost sieving machines. Although there are buildings and facilities available, this 3R TPS is not operating. The existing condition of TPS 3R has not fulfilled most of the requirements of TPS 3R which are listed in Minister of Public Works Regulation No. 3 of 2013, so that it requires redesigning buildings and waste processing facilities in them. Near the polling station there are elementary schools and kindergartens that have the potential to be affected by odors and disease vectors from the presence of polling stations. The noise of the chopper when operated which disrupts teaching and learning activities in the school is also one of the obstacles not to operate the TPS 3R even though supporting facilities are available. The area that is supposed to be the coverage of the garbage collection service is not yet fully served, so there are still people burning the garbage. Waste sorting has not been applied in most communities. The community does not feel responsible for managing the waste they produce. The situation of waste mixed from sources makes processing difficult. The risk of impacts that can be caused by the presence of polling stations and the effects of waste management that have not been good can spread the vector of disease to the community and cause odors and leachate which can contaminate nearby rice fields. The purpose to be achieved in the preparation of this final project report is to improve waste management in South Klaten Sub-district so as to reduce the generation of waste transported to the Troketon landfill. As for achieving this purpose, it was elaborated with the aim of preparing the final assignment report, namely knowing the generation, composition, characteristics of waste in the District of South Klaten; designing an inorganic waste processing unit from a waste treatment plant at the location of TPS 3R in Merbung Village, South Klaten District; and provide recommendations for waste management systems in South Klaten District. Some things were taken into consideration early, namely the increasing total waste generation, the absence of waste management in the garbage collection site, the building of 3R polling stations that were not in accordance with the provisions, the garbage mixed from the source, and the absence of community participation in waste management at the source. The initial recommendations put forward include increasing community participation by procuring waste banks, segregated storage, improving the collection system, redesigning the 3R TPS building, and designing waste treatment plants at the 3R TPS location. Some parameters that can be used as design references include population, waste generation, waste composition, and chemical characteristics of waste. In project evaluation several economic analyzes are used, including net present value, internal rate of return, and benefit-cost ratio. The benefits that can be obtained from the improvement of the waste management system in South Klaten Subdistrict and inorganic waste processing facilities at Terb 3R Merbung Village are reducing the impact of the disease, reducing waste entering the landfill, reducing soil, air, water contamination, increasing the economic value of waste and increasing community participation in waste management at the source. The average incremental weight of residential waste is 0.23 kg / person / day while the average volume generation is 1.545 L / person / day. This figure is smaller compared to the monthly reference based on SNI 19-3983-1995 concerning the Specifications of Waste Generation for Small and Medium Cities in Indonesia. The type of waste is 150.78 kg / m3 / day at source and 264.65 kg / m3 / day at polling stations. The largest composition of residential waste based on wet weight percent is organic waste of 73.532%, while inorganic waste is plastic waste of 9.688%. There is a reduction in waste from sources to polling stations carried out by scavengers on garbage that still has economic value. The planning capacity scenario is divided into three, namely based on percent service, waste reduction, and sorting. The selected capacity planning scenario is Scenario 2 with the waste capacity to be treated at 11,668 kg / day which gives the maximum generation capacity in the District of South Klaten compared to other scenarios. Scenario 2 is also the most likely to be implemented based on the ability of the community and existing conditions in the field and has met the regulations and policy targets set by the government in the Republic of Indonesia Presidential Regulation Number 97 of 2017 concerning National Policies and Strategies for Household Waste Management and Similar Waste Household waste. Alternative configuration of processing units are material recovery facility (MRF) models, thermal processing units, Local Waste Oath Place units (TOSS) and plastic waste recycling. Alternative selection methods include the analytical hierarchy process (AHP) method approach by considering social, economic, environmental and technical aspects. Selected system of plastic waste recycling unit with unit flow configuration, namely unit sorting unit counting, washing, drying and extrusion of plastic into plastic ore. Inorganic waste other than plastic is processed by being compacted and packaged and then sold to collectors or factories. Construction of a waste treatment plant requires a budget of funds as an investment and other needs. The total need for investment in TPS 3R is Rp1,020,528,503, the potential revenue from the sale of recycled materials every year is Rp1,775,136,456 and estimated annual operating expenses of Rp1,597,429,200. Based on the results of economic analysis, the value of net present value (NPV) of Rp. 287,396,901, the benefit cost ratio (BCR) analysis was 1,127 and the internal rate of return (IRR) was 1,988%. The recommended waste management system to support the implementation of waste management with selected units is to increase the reduction at the source, initiate waste banks in each village, sort waste management, scheduling disaggregated garbage collection and waste treatment at TPS 3R by managing independent organizations from the community.