Deris Faisa Ralindra
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Perencanaan Jaringan Irigasi Hidroponik Guna Ekstensifikasi Lahan pada Sawah Tadah Hujan di Kelurahan Made, Kecamatan Sambikerep, Kota Surabaya Choirul Anwar; S. Kamilia Aziz; Dwi Indriyani; Deris Faisa Ralindra; Fitria Wahyuni
Jurnal Aplikasi Teknik Sipil Vol 19, No 2 (2021)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1930.002 KB) | DOI: 10.12962/j2579-891X.v19i2.8621

Abstract

Jumlah penduduk Kota Surabaya dari tahun 2014 sampai 2015 mengalami peningkatan sebesar 4,45%. Lahan pertanian di Kota Surabaya mengalami penyusutan lahan sebesar 75 hektar setiap tahunnya. Peningkatan jumlah penduduk Kota Surabaya berbanding terbalik dengan ketersediaan lahan pertanian. Solusinya adalah menerapkan konsep baru urban farming. Hasil optimasi eksisting menghasilkan intensitas tanam sebesar 289% dengan pola tanam padi-palawija-palawija, sedangkan optimasi rencana menghasilkan intensitas tanam sebesar 240% dengan pola tanam palawija-palawija (hidroponik tingkat atas), intensitas tanam sebesar 311% dengan pola tanam palawija-palawija-palawija (hidroponik tingkat bawah), dan budidaya ikan lele sistem bioflok. Kebutuhan air rencana sebesar 3,63x106 liter sedangkan ketersediaan tampungan air total sebesar 3,75x106 liter. Nilai Benefit Cost Ratio (BCR) eksisting dan rencana masing-masing sebesar 0,09 dan 1,43. Nilai Net Present Value (NPV) eksisting dan rencana masing-masing sebesar Rp.-115.719.410,06 dan Rp. 2.956.052.297,26. Nilai Payback Period (PP) eksisting dan rencana membutuhkan 12,39 tahun dan 1,7 tahun.
Pemodelan Perubahan Morfologi Sungai Akibat Pembuangan Lumpur Sidoarjo Pada Kali Porong Rizki Robbi Rahman Alam; Ismail Saud; Fakhrudin Naufal Ansori; Deris Faisa Ralindra; A. Faiz Hadi Prajitno
Jurnal Aplikasi Teknik Sipil Vol 22, No 2 (2024)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2579-891X.v22i2.19613

Abstract

The continuous discharge of mud into Porong River can affect the river's capacity. Therefore, this research aims to understand Porong's River capacity after becoming a disposal site for Sidoarjo mud and to analyze its effects over the next 10 years. The methods used include the application of the Thomas Fiering method to generate rainfall data during that period. This rainfall data is then processed using FJ Mock calculations to obtain Kali Porong's discharge data. Subsequently, this river discharge data is input into the MIKE 21 application to simulate the water surface elevation in Kali Porong. The results of this study include modeling of water surface elevations that reveal the distribution of sediment deposited at various locations based on U*. An important implication of this research is that the modeling results can be used by relevant parties in managing Kali Porong's capacity as a disposal site for Sidoarjo mud until 2032. A critical finding from this study is the presence of sections with overtopping conditions on both the right and left sides of line 5, suggesting the need to raise the embankment by 2 meters on the right side and 0.5 meters on the left side to maintain the capacity and sustainability of the river.