Many big cities in Indonesia are facing the problem of municipal solid waste (MSW) disposal. PLTSa Merah Putih, a waste-to-energy incineration pilot plant, was built as an alternative solution to reduce waste. This study aims to evaluate the performance of PLTSa Merah Putih Bantargebang in reducing volume of waste. During the first semester of 2021, the pilot plant has been running for 174 days and a total of 5647.1 ton of waste was burned generating around 1000 ton of ash. Based on the feeding waste and generated ash, the pilot plant can reduce over 79% of waste, even with high moisture content. The furnace and grate temperature can be maintained at 800°C and 1000°C, respectively, to minimize harmful gases generation. This study showed that the waste reduction of PLTSa was comparable with the performance of other waste-to-energy pilot plants, which is in the range of 70-90%.
Low levels of clean water supply in the Tanjung Tengah village causing the high price of water. value of Fe and TDS in the village raw water is high. The value of Fe content is 388 mg/L and TDS value is 12930 mg / L. The installation of salty peat water treatment technology were done to overcome this problem. The Salty peat water treatment technology consists of coagulation flocculation system, clarifier, filtration, reverse osmosis and a distribution systems. Results showed that this treatment efficiency reaches 99%. Where the iron content of the treated water is less than 0.003 mg / L, with a TDS value down to be 77 mg / L. The treated water also meet drinking water quality standards. Keywords : Clean Water, Salty Peat Water, Reverse Osmosis, Iron and TDS.
Ambient air quality monitoring at waste-to-energy incineration pilot plant PLTSa Bantargebang is performed using a mobile monitoring station. The mobile monitoring station is equipped with meteorological and emission (CO, O3, NO2, PM10, PM2.5, and SO2) measurement. The monitoring was performed for 24 hour with 1 minute intervals. The emission measurement data was analyzed using Indonesian Air pollution standard index regulation (PermenLHK P.14/2020). The CO, O3, NO2, PM10, and SO2 index were in good category (1-50), while the PM2.5 index was classified as moderate (65.992). The results show that the air quality at PLTSa Bantargebang is still acceptable for human health.
Indoor air quality can be maintained by using an air purifier. Increasing the absorption of particulates (PM) in the air purifier can be done by adding photocatalyst ceramics. This study aims to determine the impact of adding photocatalyst ceramics to an air purifier. A simple reactor resembling an air purifier was made, to which a photocatalyst ceramic was added. The PM remaining in the output air is then analyzed based on the rate of photocatalytic degradation. The results showed that the use of photocatalyst ceramics can accelerate the absorption of PM compared to without using it.
Sampah yang tidak dipilah dengan baik disumber akan memiliki komposisi sampah beragam dan tinggi kadar air. Kondisi ini menimbulkan permasalahan kesehatan baik bagi masyarakat yang tinggal dekat dengan pembuangan akhir maupun yang tidak. Sampah dengan criteria seperti ini, dapat diolah dengan teknologi hidrotermal. Teknologi hidrotermal memanfaatkan sifat air yang unik dan hanya berlangsung pada suhu dan tekanan yang tinggi. Hasil pengolahan sampah campuran dengan teknologi hidrotermal, menghasilkan produk yaitu bahan bakar padat. Bahan bakar padat ini memiliki nilai kalor yang setara dengan batubara batubara sub-bituminus grade rendah. Tantangan pengembangan teknologi hidrotermal untuk mengolah sampah datang dari segi pembiayaan, proses pengeringan produk, dan modeling pembakaran bahan bakar produk. kata kunci : sampah, campuran, kadar air tinggi, hidrotermal, bahan bakar padat
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