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All Journal Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Akmal Dzikri Maulana
Universitas Islam Negeri Sunan Ampel Surabaya 2
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Engineering Public Health Social Sciences

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Efficiency of Domestic Wastewater Utilization from Wastewater Treatment Plants for Irrigation at Bauxite Ore Mining Hauling Areas: Efisiensi Pemanfaatan Air Limbah IPAL Domestik Untuk Penyiraman Lahan Hauling Tambang Biji Bauksit Abdul Rahman Hamidi; Tuhu Agung Rachmanto; Akmal Dzikri Maulana
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 10 No. 1 (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.v10i1.486

Abstract

The bauxite ore mining industry produces domestic wastewater from various supporting activities such as office facilities, employee dormitories, laboratories, contractor areas, and jetties. This wastewater has pollutant characteristics that exceed quality standards, requiring treatment through a Wastewater Treatment Plant (WWTP) before being reused. This study aims to analyze the characteristics of domestic wastewater, the WWTP treatment unit process, and the feasibility of its use for irrigation of the hauling area (a special route for material transportation). The method used is descriptive-quantitative with secondary data including clean water needs, wastewater generation, WWTP processes, laboratory test results from KAN-accredited WWTP outlets, irrigation water needs, and irrigation scenarios. The wastewater quality assessment refers to domestic wastewater quality standards as directed by the Ministry of Environment and Forestry (KLHK) in 2022, as well as Class 4 River Water Quality Standards based on Government Regulation No. 22 of 2021, which are used as a reference for wastewater utilization for irrigation. The hauling area used for irrigation covers an area of ​​7,500 m² with dimensions of 500 meters long and 15 meters wide. The study results show that domestic wastewater treatment in the bauxite ore mining industry is effective in reducing pollutant parameters and is safe for use as irrigation water for hauling areas. This wastewater utilization also contributes to water efficiency and supports sustainability principles in the mining environment.
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 Rudy Mohammad Sairuddin; Tuhu Agung Rachmanto; Akmal Dzikri Maulana
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 Abdul Rahman Hamidi Rudy Mohammad Sairuddin Tuhu Agung Rachmanto