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All Journal Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Maulana, Akmal Dzikri
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Engineering Public Health Social Sciences

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Residential Drainage System Planning X Sidoarjo District Maulana, Akmal Dzikri; Setyowati, Rr Diah Nugraheni; Utama, Teguh Taruna
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.10

Abstract

An increase in the population growth rate leads to a rise in the need for housing. Housing development can reduce water catchment areas, potentially leading to increased flooding. This drainage system planning aims to determine the flood discharge and channel capacity. The hydrological analysis employs the Gumbel distribution method to determine rainfall with return periods of 5 and 2 years. Rainfall for the 2- and 5-year return periods is equal to 109.5 mm/hr and 136.8 mm/hr. Furthermore, the hydraulic analysis for channel drainage capacity uses the continuity equation and SWMM 5.2 modeling. The results of the hydraulic analysis showed that the channel capacity can accommodate the flood discharge. This is reinforced by the modeling results, which state that the whole conduit and junction can accommodate the flood discharge. This is based on the simulation results of channel conduits that are not red. The channel conduit is marked with green, blue, and yellow markings. This indicates that the planned channel has complied with planning rules. Based on the results of research and planning of the residential drainage system in X Sidoarjo Regency, it can be concluded that the drainage channel plan’s capacity is sufficient to accommodate flood discharge. This is based on mathematical calculation results and modeling simulation results from the SWMM (Storm Water Management Model).
Analysis of the Settling Ponds Effectiveness in Reducing the Quality of Bauxite Ore Mining Wastewater: Analisis Efektivitas Settling Pond dalam Menurunkan Mutu Air Limbah Tambang Bijih Bauksit Sairuddin, Rudy Mohammad; Rachmanto, Tuhu Agung; Maulana, Akmal Dzikri
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 10 No. 2 (2026): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/je.v10i2.509

Abstract

This study aims to evaluate the effectiveness of the Settling Pond (SP) system in reducing the pollutant load of bauxite ore mining wastewater and formulate technical recommendations for optimizing its performance. The evaluation was conducted through analysis of water quality parameters (Total Suspended Solid/TSS, pH, Fe, and Mn) and hydraulic characteristics using Reynolds (Re) and Froude (Fr) numbers. The SP system studied consisted of 10 units with four compartments involving gravity sedimentation processes and the addition of coagulant chemicals. The results of the study showed that the TSS removal efficiency reached 94%, with a decrease in concentration from 1,200 mg/L at the inlet to 120 mg/L at the outlet. Hydraulic conditions showed laminar flow (Re < 500) and subcritical (Fr < 1) which supported the optimal sedimentation process. The effluent quality met environmental quality standards according to applicable regulations. This study confirms that the SP system plays an important role as a water pollution control technology in bauxite mining activities. Optimization of residence time, coagulant dosage adjustment, and routine maintenance are recommended to continuously improve system performance.
Co-Authors Rachmanto, Tuhu Agung Rr Diah Nugraheni Setyowati, Rr Diah Nugraheni Sairuddin, Rudy Mohammad Teguh Taruna Utama