Judul: Design of Waste Collection and Transportation System for Circular Economy Implementation in Ciampea District
Abstrak: Sampah adalah bahan sisa makhluk hidup yang harus dikelola secara komprehensif dan terpadu. Pengelolaan sampah di Kecamatan Ciampea merupakan masalah nyata yang kini sedang dihadapi akibat adanya peningkatan jumlah penduduk yang mengakibatkan peningkatan timbulan sampah yang dihasilkan. Permasalahan mengenai pengumpulan dan transportasi sampah di Kecamatan Ciampea juga perlu dievaluasi akibat adanya peningkatan timbulan sampah tersebut. Hal ini menjadi dasar tujuan dari penelitian ini yaitu mengetahui pengelolaan sampah yang telah dilakukan di Kecamatan Ciampea serta mendesain pengelolaan maupun penenempatan TPS dan TPS 3R di beberapa desa di Kecamatan Ciampea. Data primer yang digunakan diperoleh melalui metode sampling yang dilakukan pada sekolah, instansi, toko dan perumahan yang ada di Kecamatan Ciampea. Data sekunder yang diperoleh dari pihak terkait digunakan untuk menunjang hasil perhitungan data primer. Hasil pengolahan data menunjukkan bahwa terdapat timbulan sampah sebesar 22,8 ton/hari dengan komposisi sampah di Kecamatan Ciampea terdiri dari 51% organik yang berasal dari sisa makanan 36%, sampah kertas 14% dan dedaunan 2%, sedangkan sampah plastik sebesar 45% dengan komposisi plastik PP 10%, PE 26%, PET 4%, dan multilayer 5% lalu sampah lainnya 4%. Sampah yang dapat dikelola dengan adanya pembangunan TPS 3R adalah 12,1 ton/hari., Waste is the residual material of living things that must be managed in a comprehensive and integrated manner. Waste management in Ciampea Sub-district is a real problem that is currently being faced due to an increase in population which results in an increase in the amount of waste generated. Problems regarding waste collection and transportation in Ciampea Sub-district also need to be evaluated due to the increase in waste generation. This is the basis for the objectives of this study, namely to determine the waste management that has been carried out in Ciampea District and to design the management and placement of TPS and TPS 3R in several villages in Ciampea District. The primary data used was obtained through a sampling method carried out at schools, agencies, shops and housing in Ciampea District. Secondary data obtained from related parties is used to support the results of primary data calculations. The results of data processing show that there is a waste generation of 22.8 tons / day with the composition of waste in Ciampea District consisting of 51% organic originating from 36% food waste, 14% paper waste and 2% foliage, while plastic waste is 45% with a plastic composition of PP 10%, PE 26%, PET 4%, and multilayer 5% and other waste 4%. The waste that can be managed with the construction of TPS 3R is 12.1 tons/day.
Keyword: Lingkungan, Sampah, TPS, TPS 3R, Environment, TPS, TPS 3R, Waste

Judul: Design of TPS 3R in Bulumanis Kidul Village, Margoyoso District, Pati Regency
Abstrak: Permasalahan persampahan terjadi pada Desa Bulumanis Kidul sehingga pemerintah desa mengadakan pengelolaan sampah, tetapi masih belum berjalan dengan efektif. Penelitian ini bertujuan merencanakan sistem pengelolaan sampah dari sumber hingga TPS 3R. Penelitian menggunakan metode kuantitatif. Hasil pengukuran timbulan sampah sebesar 2,25 L/jiwa.hari dengan komposisi berdasarkan massa meliputi sampah organik sebesar 55,49%, kertas 9,77 %, plastik 19,50%, botol plastik 4,20%, kain 0,87%, kayu 2,42%, kaca 0,9%, diaper 5,50%, logam 0,6% dan lain-lain 0,75%. Pewadahan sampah direncanakan individual dengan dibagi dua yaitu organik dan anorganik. Wadah sampah perumahan memiliki volume sebesar 30 L, musala 20 L, masjid 40 L, kantor 40 L dan sekolah dibagi menjadi empat dengan masing-masing 30 L. Pengumpulan sampah digunakan sistem individual tidak langsung dengan periodisasi tiga hari sekali dan ritasi 3 kali/hari. TPS 3R direncanakan memiliki ruang pemilahan, penampungan sampah anorganik, pencacahan, pengolahan sampah organik, kontainer residu, ruang pengelola, dan toilet dengan rencana anggaran biaya Rp433.775.651,00., The problem of solid waste occurs in Bulumanis Kidul Village so that the village government organizes waste management, but it is still not running effectively. This study aims to plan a waste management system from source to TPS 3R. The research uses quantitative methods. The results of the measurement of waste generation are 2,25 L/person.day with a composition based on mass including 55,49% organic waste, 9,77% paper, 19,50% plastic, 4,20% plastic bottles, 0,87% cloth, wood 2,42%, glass 0,89%, diaper 5,50%, metal 0,6% and others 0,75%. The waste container is planned individually and divided into two, namely organic and inorganic. Residential waste containers have a volume of 30 L, prayer rooms 20 L, mosques 40 L, offices 40 L and schools are divided into four with 30 L each. Waste collection is used an indirect individual system with a periodization of once every three days and recitation 3 times/day. TPS 3R is planned to have a sorting room, storage of inorganic waste, enumeration, processing of organic waste, residue containers, management room, and toilets with a planned budget of 433.775.651,00 IDR.
Keyword: waste composition, waste management, waste generation

Judul: Query Expansion based on Bilingual Dictionary Using Conditional Probability
Abstrak: Query expansion is a technique that can be used to bridge vocabulary gaps between queries and documents in the collection. With query expansion, user will be helped to formulate queries well so that user will optimize the search result. In this study, the expansion term was resulted from the translation of bilingual dictionary. Subsequently, several terms of expansion were elected based on the closeness of its relationship with the original query. This research showed that conditional probability can be used to select expansion term in bilingual translation method query expansion. The result of 1000 documents was more than 97% relevan document can be retrieved by this system. The more expansion term used, the larger number relevan document was retrieved.
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