Judul: Rancang Bangun Model Pemisah Bahan Plastik dan Bahan Organik dengan Metode Silinder Panas
Abstrak: Nowadays, garbage waste problems it’s one of issue that concerns with every country in the world, included Indonesia. Volume of garbage waste to increase but minimum waste control is the most perceived problems due to the waste bin. One of garbage type needing to be taken seriously waste controls is plastics, beside of organic waste. Plastics waste need a waste controls because plastics included in non degradable waste. Need long time to make plastics become unraveled. One solution that can be applied in the handling this problems is recycling this waste. However, separating the plastic waste to the other waste are a new issues that arise during the recycling process, it required an equipment to separating plastic waste from organic waste. That equipment do not exist, requires an initial research to find method that can be applied in separating plastic and organic materials. Heat-cylinder methods it’s one of method can be applied when separating plastic and organic materials. This research has aims to design and build a model of plastic and organic materials separator used heat cylinder method. It has a basis for development into a plastic garbage separator. In the design separator model of plastic and organic materials by heat-cylinder method it’s required other constituent components so that the separation process can be performed. The other components include hoppers, scrubbers, crank and the media end of the reservoir. Separation process will be beginning sheltered plastics and organic materials into the hopper. Furthermore these materials will flow into the heat-cylinder, which was spun by the crank rotation. Rotation of the cylinder heat helps in drainage material in the hopper. Heat in the cylinder has makes plastics stuck in a round of heat-cylinder and it has separated again when it comes to the scrubber and after that followed to the end storage media. As for the organic material will flow directly into end storage media when beginning process.
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Judul: Design of Organic and Plastic Waste Processing in the Implementation of Circular Economy in Ciampea District
Abstrak: Kecamatan Ciampea adalah salah satu Kecamatan di Kabupaten Bogor dengan permasalahan sampah yang krusial. Belum terdapatnya pengolahan terhadap sampah organik dan plastik, serta sampah hanya langsung dibuang ke TPA Galuga. Tujuan dari penelitian ini merancang sistem pengolahan sampah organik dan plastik berbasis ekonomi sirkular. Penentuan komposisi sampah dilakukan dengan sampling sampah berdasarkan SNI 19-3964-1995 selama 8 hari berturut – turut. Berdasarkan sampling yang dilakukan, diperoleh rata- rata komposisi sampah organik, sampah anorganik, dan sampah lainnya secara berurutan adalah 51%, 45%, dan 4%. Jenis pengolahan menghasilkan produk yang bernilai jual, dimana sampah organik mudah membusuk akan dikomposkan dengan bantuan larva BSF, sementara sampah plastik akan diolah menjadi cacahan plastik dan biji plastik. Sampah organik yang direduksi sebesar 80%. Sampah plastik yang akan dicacah adalah jenis plastik PE, PP, PET, dan sachet multilayer. Jenis plastik utama yang akan di didtribusikan ke mitra X adalah jenis plastik PE., Ciampea District is one of the districts in Bogor Regency with critical waste issues. There is currently no processing of organic and plastic waste, and the waste is directly disposed of in the Galuga landfill. The aim of this research is to design a waste processing system based on circular economy principles. The determination of waste composition was carried out by sampling waste based on SNI 19-3964- 1995 for 8 consecutive days. Based on the sampling conducted, the average composition of organic waste, inorganic waste, and other waste is 51%, 45%, and 4%, respectively. The chosen waste processing methods aim to produce valuable products. Organic waste, which is easily biodegradable, will be composted with the help of Black Soldier Fly (BSF) larvae, while plastic waste will be processed into plastic flakes and plastic pellets. The reduction of organic waste is targeted at 80%. The plastic waste to be shredded includes PE, PP, PET, and multilayer sachet plastics. The main type of plastic to be distributed to partner X is PE plastic.
Keyword: BSF, composting, shreds, plastic, waste

Judul: Asymptotic Distribution of Estimator for the Intensity Function of a Doubly Periodic Poisson Process
Abstrak: In this manuscript, estimation of the intensity function of a doubly periodic Poisson process is discussed. It is assumed that only a single realization of the Poisson process is observed in a bounded window [0,n]. It is also assumed that the period of the intensity function is known. The rate of consistency and asymptotic normality of the estimator are formulated. Finally, a confidence interval for the local intensity function is also formulated.
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