Judul: Rainwater Harvesting System Design in International  Dormitory of IPB Dramaga Campus
Abstrak: Curah hujan yang tinggi di Bogor mencapai 3500 mm melebihi rata-rata curah hujan nasional antara 2000 – 3000 mm. Pemanenan air hujan cocok untuk dilakukan sebagai langkah konservatif yang dapat dilakukan IPB University dalam upaya pemeliharaan sumber daya air yang berkelanjutan. Penelitian ini bertujuan mengetahui banyaknya suplai air hujan yang dapat dipanen, menghasilkan desain sistem PAH serta RAB instalasinya, dan mengetahui penghematan air serta biaya yang dapat dicapai melalui sistem PAH. Penelitian dilakukan dari Februari – Mei 2024 dengan pengambilan data primer berupa luas atap bangunan dan informasi kebutuhan air bersih, serta data sekunder berupa curah hujan tahun 2000 – 2023 Stasiun BMKG Jawa Barat. Potensi volume air hujan yang dapat dipanen 1230 – 2134 m3 dengan rata-rata suplai 1603 m3 per tahun. Desain sistem pemanenan PAH yang dirancang menggunakan tangki FRP berkapasitas 28 m3 dengan dimensi 7 m x 2 m x 2 m. Talang dipasang dengan kemiringan seragam ½% dan pipa datar dengan kemiringan seragam 1%. Variasi ukuran pipa dan talang yang digunakan antara 1 – 10 inch. Besarnya biaya yang dibutuhkan untuk instalasi PAH sebesar Rp143.000.000,00. Penghematan air aktual yang dapat tercapai melalui sistem PAH sebanyak 44% – 75% dari kebutuhan air tahunan dan menghemat biaya lebih dari 120% dari investasi awal., High rainfall in Bogor reached 3500 mm, exceeding the national average rainfall between 2000 – 3000 mm. Rainwater harvesting is conservative step that IPB University can take to maintain sustainable water resources. This research aims to determine amount of rainwater supply that can be harvested, created PAH system design and installation RAB, and determine water and cost savings that can be achieved through PAH system. The research was conducted from February – May 2024 by collecting primary data of building roof area and information of clean water needs, and secondary data of rainfall from 2000 – 2023 from West Java BMKG Station. Potential harvested volume of rainwater is 1230 – 2134 m3 with average supply 1603 m3 a year. The harvesting system design uses a 28 m3 FRP tank with dimensions 7 m x 2 m x 2 m. The gutter is installed with slope of ½% and the flat pipe with slope of 1%. Variations in pipe and gutter sizes used are between 1 – 10 inches. The cost required for PAH installation is IDR143,000,000.00. Actual water savings that can be achieved through PAH system are 44% – 75% of annual water needs and cost savings of more than 120% of the initial investment.
Keyword: air hujan, ketersediaan air, konservasi air, pemanenan air hujan, rainwater, rainwater harvesting, water availability, water conservation

Judul: Perancangan Pemanenan Air Hujan Dengan Konsep Roof Catchment di Gedung Mandiri Innopreneurship Center IPB University
Abstrak: Bogor merupakan salah satu kota di Indonesia yang terkenal dengan curah hujan yang sangat tinggi sepanjang tahunnya. Penelitian ini bertujuan mengetahui volume air hujan yang dapat dipanen, menghasilkan rancangan sistem pemanenan air hujan, menghasilkan rancangan anggaran biaya konstruksi dan menganalisis nilai efektivitas dan efisiensi penghematan sistem PAH. Penelitian dilakukan pada bulan Maret-Mei 2024 yang berlokasi di Gedung Mandiri Innopreneurship Center IPB University. Data curah hujan menggunakan data curah hujan 24 tahun terakhir (tahun 2000-2023) yang diperoleh dari stasiun BMKG Jawa Barat. Potensi volume air hujan yang dapat di panen dengan konsep roof catchment sebesar 892,4 m3/tahun. Hasil perancangan sistem pemanenan air hujan terdiri dari saringan, first flush diverter, tangki FRP, talang air dan perpipaan. Dimensi talang yang digunakan berukuran 200 mm dengan kemiringan 2%. sedangkan, dimensi pipa tegak dan pipa datar menggunakan ukuran 100 mm dengan kemiringan pipa datar sebesar 4%. Kapasitas tangki FRP yang digunakan sebesar 28.000 liter. Rancangan Anggaran Biaya (RAB) konstruksi yang diperlukan untuk perancangan sistem pemanenan air hujan sebesar Rp 105.374.000,00. Efektivitas sistem PAH mencapai 80%. Sistem pemanenan air hujan yang direncanakan dapat mereduksi biaya sebesar 21% atau Rp 1.704.169,00 per tahun Kata Kunci: curah hujan, pemanenan air hujan, tangki frp, Bogor is a city in Indonesia which is famous for its very high rainfall throughout the year. This research aims to determine the volume of rainwater that can be harvested, produce a rainwater harvesting system design, produce a construction cost budget and analyze the effectiveness and efficiency of PAH system savings. The research was in March-May 2024 at the Mandiri Innopreneurship Center IPB University Building. Rainfall data uses rainfall data for the last 24 years (2000-2023) obtained from the West Java BMKG station. Potential volume of rainwater is 892,4 m3/year. The results of the design of the rainwater harvesting system consist of a filter, first flush diverter, FRP tank, gutters and piping. Dimensions of the gutter used are 200 mm with a slope of 2%. Dimensions of the standpipe and flat pipe are 100 mm with a flat pipe slope of 4%. The capacity of the FRP tank used is 28.000 liters. The draft construction (RAB) required for designing a rainwater harvesting system is IDR 105.374.000,00. The effectiveness of the PAH system reaches 80%. The planned rainwater harvesting system can reduce costs by 21% or IDR 1.704.169,00 per year. Keywords: rainfall, rainwater harvesting, FRP tank
Keyword: Rainfall, Rainwater harvesting, FRP tank

Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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