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All Journal BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) JURNAL TEKNIK HIDRAULIK
Lambok M. Hutasoit
Institut Teknologi Bandung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Engineering

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ANALISIS PENGARUH NILAI KONDUKTIVITAS HIDRAULIK DAN DISPERSIVITAS DINAMIK TERHADAP REMEDIASI AIR TANAH MENGGUNAKAN SIMULASI NUMERIK Agus Mochamad Ramdhan; Arifin Arifin; Erik Hermawan; Lambok M. Hutasoit
JURNAL TEKNIK HIDRAULIK Vol 12, No 2 (2021): JURNAL TEKNIK HIDRAULIK
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v12i2.658

Abstract

Groundwater remediation is one of the solutions to restore the contaminated groundwater. This study was conducted to determine the effect of hydraulic conductivity and dynamic dispersivity on the groundwater remediation effectiveness. As a case study, in 2020, in an area located in Balikpapan, groundwater remediation will be carried out by injecting water containing NaOH through five wells and pumping it back through five wells to form a cycle. The method used is a numerical simulation consisting of groundwater flow simulation, mass transport, and sensitivity analysis. The results show that it takes 124 to 300 days for the injected NaOH to arrive at the pumping wells. The sensitivity analysis results show that when the hydraulic conductivity value is ten times greater, the time required is reduced to 84 to 172 days. Meanwhile, when the dynamic dispersivity is twice larger, the time required is reduced to 75 to 189 days. These results indicate that the groundwater remediation method will be effective for aquifers with high hydraulic conductivity and dynamic dispersivity values. For the study area, the groundwater remediation is suggested to be carried out by increasing the number of injection and pumping wells with a relatively close distance, i.e., around 10 meters, so that NaOH arrives at the pumping wells more quickly.Keywords: groundwater, remediation, hydraulic conductivity, dynamic dispersivity, numerical simulation
The TESTS OF pH, CONDUCTIVITY, TOTAL DISSOLVED SOLIDS, SALINITY AND TURBIDITY IN THE BATANG ARAU RIVER SURROUNDING, PADANG CITY-WEST SUMATRA Rusli HAR; Aprisal; Isril Berd; Lambok M. Hutasoit; Denny Akbar Tanjung
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 1 (2023): August
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v10i1.9642

Abstract

Humans need fresh water for many functions, including cleaning, irrigating plants, drinking, cooking, industrial uses, and more. It cannot be denied that the excessive exploitation of the environment by humans is the cause of the current decline in water quality. This study aims to test water quality such as pH, conductivity, total dissolved solids, salinity, and turbidity. The research method uses quantitative methods. The research area was taken from 10 subdistricts around the Arau River Basin. The sample is measured using a predetermined measuring instrument. Based on the test results from all research areas, several parameters for testing water quality meet the standards of the 2010 Ministry of Health Regulations, such as the pH test except for the Indarung and Lubuk Begalung sub-districts. and East Padang. The Total Dissolved Solids test in all areas is in good water standard except for Koto Tangah. The salinity test for all areas met the requirements for water quality standards except for the West Padang sub-district and the Turbidity test showed that all areas had turbidity values > 5 NTUs..
Co-Authors Agus Mochamad Ramdhan Aprisal Aprisal, Aprisal Arifin Arifin Denny Akbar Tanjung Erik Hermawan Isril Berd Rusli HAR