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All Journal Teras Jurnal Media Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil Transukma Jurnal Teknik Sipil
Allan Restu Jaya
Universitas Palangka Raya
Civil Engineering, Building, Construction & Architecture Engineering Environmental Science

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Inovasi Dan Desain Turbin Hidrokinetik Darrieus Berdasarkan Bentuk Distribusi Kecepatan Aliran Citra Sari Wardani; Dwi Anung Nindito; Allan Restu Jaya
Media Ilmiah Teknik Sipil Vol 9 No 1 (2020): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v9i1.1771

Abstract

Darrieus turbine use blades with a hydrofoil shape, so the rotational ability is influenced by lift force. This caused the initial rotation capability to be very low when compared to the drag turbine type. The flow velocity distribution in the vertical direction indicates a small cross-sectional speed of flow approaching the base of the flow channel, then rising towards the surface. Darrieus Spinning Top turbine is the result of innovation and design based on the concept of flow velocity distribution. Darrieus Spinning Top turbine’s blade shapes are circular-arc and straight-line, adjusting flow velocity distribution of 0.2H, 0.6H and 0.8H from the top of the turbine. In this study, a performance comparison was conducted between Darrieus turbine and Spinning Top Darrieus. Darrieus turbines produce RPM and torque values of 54.59 – 67.90 and 0.014 – 0.029 Nm, respectively. Darrieus Spinning Top turbines produce RPM values and torque of 69.24 – 82.02 and 0.012 – 0.020 Nm respectively. RPM improvements in Darrieus Spinning Top turbine design increase the influence of lift force (increased λ value). This results in a high lap rate, but requires a high self starting to perform the turbine rotation cycle.
ANALISIS KEBUTUHAN DAN KETERSEDIAAN AIR BERSIH DI KOTA BUNTOK KABUPATEN BARITO SELATAN: ANALYSIS OF CLEAN WATER NEED AND AVAILABILITY IN BUNTOK CITY, BARITO SELATAN REGENCY Mia Marlina Mia Marlina; Allan Restu Jaya; Haiki Mart Yupi
Jurnal Ilmiah Teknik Sipil TRANSUKMA Vol. 5 No. 2 (2023): Jurnal Penelitian Transukma
Publisher : Program Studi Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kota Buntok adalah salah satu kota yang berada di Provinsi Kalimantan Tengah. Kota ini terus mengalami peningkatan terhadap jumlah penduduk sehingga kebutuhan akan air bersih semakin meningkat pula. Ketersediaan air bersih yang terbatas menjadi salah satu faktor permasalahan yang sekarang terjadi di kota Buntok. Ketersediaan air yang tidak memadai tentu akan berdampak negatif bagi masyarakat apalagi untuk daerah yang jauh dari Daerah Aliran Sungai (DAS). Penelitian ini bertujuan untuk mengetahui kebutuhan dan ketersediaan air bersih yang ada di Kota Buntok sampai 10 tahun mendatang. Perhitungan kebutuhan air bersih dihitung dari data jumlah penduduk 10 tahun terakhir yang kemudian dihitung sesuai dengan kriteria kebutuhan air bersih. Ketersediaan air bersih dihitung dari data kapasitas IPA yaitu 85 lt/dt dan kapasitas Intake PDAM yaitu 80 lt/dt dikurangi hasil perhitungan Kebutuhan air rata-rata pelanggan, Kebutuhan harian maksimum pelanggan, dan kebutuhan jam puncak pelanggan sehingga diperoleh hasil Balance Kapasitas IPA = 9,163 lt/dt (2022), 7,885 lt/dt (2023), 6,608 lt/dt (2024), 5,330 lt/dt (2025), 4,053 lt/dt (2026), 2,775 lt/dt (2027), 1,498 lt/dt (2028), 0,220 lt/dt (2029), -1,057 lt/dt (2030), -2,335 lt/dt (2031). Dari hasil penelitian disimpulkan bahwa ketersediaan air bersih di kota Buntok saat ini, masih belum dapat mencukupi kebutuhan masyarakat hingga 10 tahun mendatang.     Buntok City is one of the small cities in Central Kalimantan Province, which continues to experience an increase in population so that the need for clean water is increasing as well. The limited availability of clean water is one of the problems that are now happening in the city of Buntok. This of course must be considered considering the importance of clean water for the community both now and in the future. Inadequate water availability will certainly have a negative impact on the community, especially for areas far from watersheds (DAS). This study aims to determine the need and availability of clean water in Buntok City for the next 10 years whether it is still being met or not, as well as provide solutions for related parties regarding the availability of clean water that exists today so that it is able to meet future needs. . Calculation of the population's clean water needs in the next 10 years is calculated from the population data for the last 10 years which is then calculated according to the criteria for clean water needs. The availability of clean water is calculated from the WTP capacity data, which is 85 lt/sec and the PDAM Intake capacity is 80 lt/sec minus the calculation results of the average customer water requirement, the maximum daily requirement of the customer, and the peak hour requirement of the customer so that the results of the IPA Capacity Balance = 9,163 lt/sec (2022), 7,885 lt/sec (2023), 6,608 lt/sec (2024), 5,330 lt/sec (2025), 4,053 lt/sec (2026), 2,775 lt/sec (2027), 1,498 lt/ s (2028), 0.220 lt/s (2029), -1.057 lt/s (2030), -2,335 lt/s (2031). From the results of the research above, it can be concluded that the current availability of clean water in the city of Buntok is still unable to meet the needs of the community for the next 10 years.
Kombinasi Trash Trap dan Eceng Gondok untuk Mengurangi Sampah serta Menurunkan Kadar BOD di Saluran Pembuang yang Menuju Sungai Sebangau Wingga Pratama; Haiki Mart Yupi; Allan Restu Jaya
Teras Jurnal : Jurnal Teknik Sipil Vol 16 No 2 (2026): Teras Jurnal (September 2026)
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v16i2.1418

Abstract

Abstrak   Pencemaran air di saluran pembuang menuju Sungai Sebangau disebabkan limbah cair dan sampah padat, menurunkan kualitas air. Penelitian ini menganalisis trash trap dan fitoremediasi eceng gondok (Eichhornia crassipes) dalam mengurangi sampah dan kadar Biochemical Oxygen Demand (BOD), melalui pengambilan sampel 15 hari pada tiga titik pengamatan. Trash trap menahan sampah rata-rata 2064,6 cm³ per hari, dengan BOD awal di hulu sebesar 82,45 mg/L. Fitoremediasi eceng gondok menurunkan BOD, optimal pada hari ke-3 sebesar 44,4%, namun meningkat pada hari ke-15 menjadi -51,3%. Tanaman mengalami kejenuhan ditandai dengan tanaman fitoremediasi berubah warna menjadi kuning dan layu sedangkan fluktuasi debit aliran dengan rentang 338.66 cm3/s sampai 1224.64 cm3/s. Debit tinggi membuat penyerapan zat pencemar kurang efektif (kadar BOD 43.1 mg/L diawal meningkat menjadi 65.2 mg/L), sedangkan debit rendah lebih efektif karena waktu tinggal air lebih lama (kadar BOD 67.3 mg/L diawal meningkat menjadi 37.4 mg/L). Sistem berpotensi menjadi metode penanganan limbah sederhana dan ramah lingkungan.   Kata kunci: Trash trap, eceng gondok, fitoremediasi, BOD, saluran pembuang     Abstract   Water pollution in the drainage channel leading to the Sebangau River is caused by liquid waste and solid trash, which degrade water quality. This study analyzes the effectiveness of a trash trap combined with water hyacinth (Eichhornia crassipes) phytoremediation in reducing solid waste and Biochemical Oxygen Demand (BOD) levels, using 15 days of sampling at three observation points. The trash trap retained an average of 2064.6 cm³ of solid waste per day, with an initial upstream BOD of 82.45 mg/L. Water hyacinth phytoremediation reduced BOD optimally on day 3, achieving a 44.4% reduction, but effectiveness declined by day 15, reaching -51.3%, indicating plant saturation marked by yellowing and wilting of the phytoremediation plants. Flow discharge fluctuated between 338.66 cm³/s and 1224.64 cm³/s, which affected pollutant absorption. High discharge resulted in less effective absorption, with BOD levels rising from 43.1 mg/L to 65.2 mg/L, whereas low discharge was more effective due to longer water retention time, with BOD levels decreasing from 67.3 mg/L to 37.4 mg/L. These findings suggest that the trash trap–phytoremediation system has potential as a simple, low-cost, and environmentally friendly method for wastewater and solid waste management, provided that flow discharge fluctuations and plant saturation periods are properly managed.   Keywords: trash trap, water hyacinth, phytoremediation, BOD, drainage channel.
Kombinasi Trash Trap dan Eceng Gondok untuk Mengurangi Sampah serta Menurunkan Kadar BOD di Saluran Pembuang yang Menuju Sungai Sebangau Wingga Pratama; Haiki Mart Yupi; Allan Restu Jaya
Teras Jurnal : Jurnal Teknik Sipil Vol 16 No 2 (2026): Teras Jurnal (September 2026)
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v16i2.1418

Abstract

Abstrak   Pencemaran air di saluran pembuang menuju Sungai Sebangau disebabkan limbah cair dan sampah padat, menurunkan kualitas air. Penelitian ini menganalisis trash trap dan fitoremediasi eceng gondok (Eichhornia crassipes) dalam mengurangi sampah dan kadar Biochemical Oxygen Demand (BOD), melalui pengambilan sampel 15 hari pada tiga titik pengamatan. Trash trap menahan sampah rata-rata 2064,6 cm³ per hari, dengan BOD awal di hulu sebesar 82,45 mg/L. Fitoremediasi eceng gondok menurunkan BOD, optimal pada hari ke-3 sebesar 44,4%, namun meningkat pada hari ke-15 menjadi -51,3%. Tanaman mengalami kejenuhan ditandai dengan tanaman fitoremediasi berubah warna menjadi kuning dan layu sedangkan fluktuasi debit aliran dengan rentang 338.66 cm3/s sampai 1224.64 cm3/s. Debit tinggi membuat penyerapan zat pencemar kurang efektif (kadar BOD 43.1 mg/L diawal meningkat menjadi 65.2 mg/L), sedangkan debit rendah lebih efektif karena waktu tinggal air lebih lama (kadar BOD 67.3 mg/L diawal meningkat menjadi 37.4 mg/L). Sistem berpotensi menjadi metode penanganan limbah sederhana dan ramah lingkungan.   Kata kunci: Trash trap, eceng gondok, fitoremediasi, BOD, saluran pembuang     Abstract   Water pollution in the drainage channel leading to the Sebangau River is caused by liquid waste and solid trash, which degrade water quality. This study analyzes the effectiveness of a trash trap combined with water hyacinth (Eichhornia crassipes) phytoremediation in reducing solid waste and Biochemical Oxygen Demand (BOD) levels, using 15 days of sampling at three observation points. The trash trap retained an average of 2064.6 cm³ of solid waste per day, with an initial upstream BOD of 82.45 mg/L. Water hyacinth phytoremediation reduced BOD optimally on day 3, achieving a 44.4% reduction, but effectiveness declined by day 15, reaching -51.3%, indicating plant saturation marked by yellowing and wilting of the phytoremediation plants. Flow discharge fluctuated between 338.66 cm³/s and 1224.64 cm³/s, which affected pollutant absorption. High discharge resulted in less effective absorption, with BOD levels rising from 43.1 mg/L to 65.2 mg/L, whereas low discharge was more effective due to longer water retention time, with BOD levels decreasing from 67.3 mg/L to 37.4 mg/L. These findings suggest that the trash trap–phytoremediation system has potential as a simple, low-cost, and environmentally friendly method for wastewater and solid waste management, provided that flow discharge fluctuations and plant saturation periods are properly managed.   Keywords: trash trap, water hyacinth, phytoremediation, BOD, drainage channel.
Co-Authors Citra Sari Wardani Dwi Anung Nindito Haiki Mart Yupi Mia Marlina Mia Marlina Wingga Pratama