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All Journal Jurnal Zeolit Indonesia Jukung (Jurnal Teknik Lingkungan) Jurnal Abdi Insani Proceeding Applied Business and Engineering Conference
Ismadi Raharjo, Ismadi
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APPLICATION OF ACTIVE CARBON AND ZEOLITE AS ADSORBEN COMPONENT OF RAPID SAND FILTER (A SIMPLE APPLICATION OF TECHNOLOGY IN DEPURATING FRESH WATER) Fatahilah, Fatahilah; Raharjo, Ismadi
Jurnal Zeolit Indonesia Vol 6, No 2 (2007)
Publisher : Jurnal Zeolit Indonesia

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Abstract

Fresh or clean water is a primary need in housing life. Clean water is used in all housing activities starting from daily needs, they are food and drink; healthy needs for example taking a bath, washing and so on, it is included non primary needs for instance watering plant, washing motorcycle or car and etc. By Increasing population growth, housing need is higher so that many simple housing like Rumah Sangat Sederhana, RSS are established in suburb. Sometimes the location of housing is landfill of swam or field area. In Fulfilment of clean water, developer usually establish shallow well. For example Gelora Persada Housing, Rajabasa, Bandar Lampung. The quality of shallow well in farmer swam or field usually have high organic content that produce bad taste and smell, high turbidity, acid (low pH), and contain high iron (Fe) element. In research was conducted in shallow well of Gelora Persada Housing, Rajabasa, Bandar lampung by using rapid sand filter wich is completed by active carbon and zeolite as adsorbance so that gained to decrease turbidity level from 23,9 NTU become 6,51 NTU; can increase pH value from 6,24 to 6,44 and it also can decrease iron (Fe) content from 3,04 mg/lt become 0,74 mg/lt.
RANCANG ALAT PEMURNI AIR LAUT TENAGA SURYA DENGAN KOLEKTOR PANAS CERMIN CEKUNG Zulkarnain, Iskandar; Raharjo, Ismadi; Istanto, Kelik
Jukung (Jurnal Teknik Lingkungan) Vol 4, No 2 (2018): SEPTEMBER 2018
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

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Abstract

Tujuan dari penelitian ini adalah: merancang alat pemurni air laut berdasarkan teori pemanasan, penguapan dan kondensasi menggunakan energi sinar matahari. Kegiatan penelitian dilakukan dengan mengamati data parameter berdasarkan 3 kombinasi perlakuan, yaitu; a) penggunaan kotak evaporasi yang memurnikan air setinggi 1 cm; b) penggunaan kotak evaporasi dan cermin cekung yang memurnikan air setinggi 1 cm; c) penggunaan kotak evaporasi, cermin cekung, dan kondensor yang memurnikan air setinggi 1 cm; Pengamatan selama 10 jam pemanasan di bawah matahari mulai pukul 07.00-17.00 WIB, memberi hasil bahwa ketiga kombinasi tersebut mampu memurnikan air laut menjadi air tawar. Kombinasi terbaik adalah kombinasi B, yang menghasilkan volume air tawar sebanyak 1.718 ml. Pengamatan lain yaitu nilai TDS menunjukkan bahwa penurunan nilai TSD air baku (air laut) dari 27.000 ppm menjadi 3 ppm hingga 5 ppm, sedangkan suhu air yang dihasilkan dari proses pemurnian menunjukkan nilai-nilai berkisar antara 27,5oC hingga 29,7oC, sedangkan pH air destilasinya berkisar di 5,024 hingga 5,252. Kata kunci : Air Bersih, Energi Surya , Pemurnian Air. The purpose of this research is : designing a water sea purifier tools based on the theory of heating, evaporating and condensing using sunlight energy. The research activity is done by observed data parameter based on 3 combination of treatment ; a) the use of evaporative boxes to purify seawater as high as 1 cm; b) the use of evaporative boxes and concave mirrors to purify seawater as high as 1 cm; c) the use of evaporative boxes, concave mirrors, and condensors to purify seawater as high as 1 cm; Observations for 10 hours of warming under the sun began at 07:00 to 17:00 pm, giving resulted that all combination are able to purify the seawater into fresh air. The best combination is a combination of B, which produces a fresh air volume of 1,180 ml. . The observation of the TDS value shown that a decline in the value of TSD raw water (seawater) from 27.000 ppm to 3 ppm until 5 ppm, while the temperature of the water produced shown values range between 27,5oC up 29,7oC, whereas pH of the destilated water around the 5.024 up to 5.252. Keywords: Fresh Water, Solar Energy , Water Purified
Climate Control Efforts that Impact Flood Disasters in the Lampung Saputra, Andy Eka; Suprapto, Suprapto; Raharjo, Ismadi
ABEC Indonesia Vol. 12 (2024): 12th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

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Abstract

The imbalance between the current availability of water resources and the need for water is an important problem in almost all regions in Indonesia, so that it requires a conception of the engineering and operation of existing facilities. control and utilization of water as well as management carried out efficiently and effectively in order to meet various needs. As an effort to avoid conflicts of interest, an engineering management of dam operations is needed. This raises the idea of ​​the need for water management engineering existing reservoirs. Based on reservoir water inflow and outflow data from 2019 to 2022, optimization was carried out on the Minimum Demand Analysis (Firm Yield Analysis) and Maximum Analysis of Reservoir Water Release using the Non-Linear Generalized Reduced Gradient (GRG) Method. Inflow and outflow data iterations as a function of objectives and constraints Minimize Reservoir Capacity and Amount of water storage in the reservoir = Inflow, and demand at the Way Sekampung Dam = Outflow obtained by Firm Yield Analysis of 335.62 Million M3 or 335 MCM. Thus, it can be concluded that the effective storage volume that can be allocated for irrigation is located between the minimum reservoir elevation at +250 m and the maximum elevation at +255 m. The results of the volume interpolation of the optimization results obtained with an elevation elevation of + 253.74 m, as well as the optimization results for the total release of reservoir water at 281 MCM, so that the management of water resources can then become a benchmark in the distribution of irrigation water, raw water, hydropower and water conservation. continuously
PENINGKATAN KESIAPSIAGAAN BENCANA MELALUI PEMETAAN JALUR EVAKUASI: STUDI KASUS SMA NEGERI 5 BANDAR LAMPUNG Phelia, Arlina; Darmaputra, I Gde; Raharjo, Ismadi; Idrus, Muhammad; Kuswadi, Didik; Putri, Vera Chania
Jurnal Abdi Insani Vol 12 No 10 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i10.2846

Abstract

SMA Negeri 5 Bandar Lampung is located in a strategic yet disaster-prone area, facing risks such as floods, earthquakes, and fires. The school did not have a structured evacuation route system or evacuation maps displayed in strategic areas, leaving the school community without clear visual guidance for evacuation routes and assembly points during emergencies. This community service activity aimed to develop evacuation route maps based on the actual spatial conditions of the school to improve preparedness. The methods included field observation, manual measurement, visual documentation, and digital mapping using AutoCAD, with design validation involving school stakeholders. The activity produced a proportional digital evacuation map showing routes from all strategic areas to three designated assembly points. Before the implementation, only 16.7% of evacuation-supporting elements were available; after installation and dissemination, the preparedness index improved significantly from an average of 22.7% to 76.7%. The map is clear, easy to understand, and serves as an essential visual reference to support the Disaster-Safe School program. The development of this evacuation route map has improved the structural preparedness of the school and provides a technical foundation for future disaster drills and training.
Co-Authors Darmaputra, I Gde Fatahilah Fatahilah, Fatahilah Istanto, Kelik Kuswadi, Didik Muhammad Idrus Phelia, Arlina Putri, Vera Chania Saputra, Andy Eka Suprapto Suprapto Winnugroho Wiratman, Manfaluthy Hakim, Tiara Aninditha, Aru W. Sudoyo, Joedo Prihartono