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Storage volumestorage volumestorage volumeRainwater Harvesting System as an Alternative to Overcoming Drought in Safira Garden Housing District, Kec. Kaliwates District. Jember Lailyasari , Fahira Dwi; Rizal , Nanang Saiful; Galuh , Senki Desta
International Applied Science Vol. 2 No. 2 (2023): Proceeding of SIGMA 1
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/ias.v2i2.465

Abstract

Rainfall is the most important component in a rainwater harvesting system. This rainwater harvesting system integrated with infiltration wells is an effort to avoid the problem of drought. One of the reasons why rainwater harvesting systems are important for water conservation is that increasing water demand causes an increase in groundwater extraction, thereby reducing groundwater reserves. Data collection was obtained through direct surveys to research locations and related agencies. Next, technical planning or building design for Rainwater Harvesting with infiltration wells is carried out, including buildings for storing or harvesting rainwater (rainwater harvesting) and rainwater infiltration into infiltration wells in each house. This research analyzes the implementation of a rainwater harvesting system using infiltration wells, with the aim of finding out the volume of rainwater that can be accommodated in the rainwater harvesting system and the costs required in the rainwater harvesting system. The river basin (DAS) in the Safira Garden area, Kaliwates District, Jember Regency has an area of 16 hectares or 0.16 km 2 . The results of the research show that the volume of rainwater that can be collected in the rainwater harvesting system at Safira Garden Housing, namely that which is collected in the absorption wells throughout the house is 66.04 m 3 and the total volume in the storage pond is 5303.36 m 3 . Funding for the rainwater harvesting system is estimated at Rp. 9,253,000.00 for rainwater utilization facilities with infiltration wells and rainwater storage areas equipped with water pumps to provide upward pressure and water filters to filter rainwater before it is used for domestic needs.
Review of the Tegalwaru Weir Design Using the Tyrolean Weir Model and the USBR Model Energy Damper Pramana, Anselmus Henry; Rizal , Nanang Saiful; Gunasti, Amri
International Applied Science Vol. 2 No. 2 (2023): Proceeding of SIGMA 1
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/ias.v2i2.468

Abstract

Tegalwaru Dam is a permanent weir located in Sumber Kejayan Village, Mayang District, Jember Regency which serves an irrigation area of 85 Ha. Over time, the Tegalwaru weir, which was built in the Mayang watershed, experienced some damage. Therefore, an assessment of the effectiveness of the Tegalwaru Dam was carried out by constructing a USBR energy dampening building and also planning the type of weir using the Tyrol weir. The aim of this research is to find the planned flood discharge at the Tegalwaru weir by utilizing HEC-HMS software and to be able to plan the weir building using the Tyrol weir and design an appropriate energy dampening building for the weir. From the research results, it was found that the planned flood discharge at the Tegalwaru weir was 150.7 m 3 /sec which occurred on December 24 2014. The planned weir at the Tegalwaru weir used the Tyrol weir type with a filter slope of 20˚ and a filter length of 1 meter with a wide storage channel. 1.6 meters wide and the reservoir channel is 1 meter deep. To reduce energy, use a USBR type IV energy reducer.