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All Journal Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Jukung (Jurnal Teknik Lingkungan) TEKTAN Journal of Applied Civil Engineering and Infrastructure Technology (JACEIT)
Istanto, Kelik
Politeknik Negeri Lampung
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Transportation

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RANCANG ALAT PEMURNI AIR LAUT TENAGA SURYA DENGAN KOLEKTOR PANAS CERMIN CEKUNG Iskandar Zulkarnain; Ismadi Raharjo; Kelik Istanto
Jukung (Jurnal Teknik Lingkungan) Vol 4, No 2 (2018): SEPTEMBER 2018
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (241.911 KB) | DOI: 10.20527/jukung.v4i2.6578

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
Inovasi Beton Ramah Lingkungan Dengan Pemanfaatan Limbah Kaca dan Plastik PET Ramadhan, Deni; Wahyudi, Ismail; Afiah, Alfiana; Arcana, Gusti Putu Febri; Rizky, Muhammad; Istanto, Kelik
Journal of Applied Civil Engineering and Infrastructure Technology Vol 5 No 1 (2024): Agustus 2024
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jaceit.v5i1.675

Abstract

Nowadays, the use items made from glass and plastic has increased, causing accumulation. One of them is Bakung landfill in Bandar Lampung which accommodates 1,000 tons per day. Accumulating glass and plastic waste has caused various environmental problems. This research was carried out as form of technological innovation and effort to preserve environment due to this waste. The research purpose is finding environmentally friendly concrete formula by substituting glass waste and PET plastic but have characteristics that comply with SNI standards. Each material that makes up the concrete is tested for its characteristics so that normal concrete mix design can be carried out. Glass waste and PET plastic are substituted at 10%, 15%, and 25% into coarse and fine aggregate formulations in normal concrete formula, thereby creating variations in test specimen. The concrete sample has made in cube with dimensions of 15 x 15 x 15 cm. Concrete compressive strength tests were carried out at 7, 14, 21 and 28 days. Compressive results strength test showed that variations in substitute materials in concrete have effect on resulting compressive strength. Concrete test results with 10% and 15% substitution have compressive strength values ​​that was close to each other and higher than 25% substitution. Even though the two compositions have close compressive strength values, they have different standard deviations. The standard deviation values ​​for 10% and 15% substitution have 35.9913 and 23.1299. So, concrete with 15% substitution composition was the most optimal composition because it showed most dominant advantage among others.
Co-Authors Afiah, Alfiana Anak Agung Gede Sugianthara Andy Eka Saputra Aniessa Rinny Asnaning Arcana, Gusti Putu Febri Ismadi Raharjo Ismadi Raharjo Ismadi Raharjo, Ismadi Kuswadi, Didik Muhammad Idris muhammad rizky, muhammad Niko Suhendra Nurwijayanti Ramadhan, Deni Repinka Cornelia Suprapto Suprapto Tiara Aninditha Wahyudi, Ismail