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All Journal Jurnal Dampak Al-Ard: Jurnal Teknik Lingkungan
Noor Azizah, Rifka
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Engineering Environmental Science

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Efektivitas Kombinasi Zeolit dan Batu Apung dalam Menurunkan Konsentrasi Besi (Fe) pada Air Tanah: Studi Kasus di Pidada, Kecamatan Panjang, Bandar Lampung Dalimunthe, Sahriwani; Fajar, Mutiara; Noor Azizah, Rifka
Dampak Vol. 21 No. 2 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.21.2.27-33.2024

Abstract

Water is a very important component for all life on earth. Iron is a heavy metal, and levels can be dangerous if they exceed threshold levels. Preliminary tests show that Fe in well water is 1.66 mg/l. This study aims to analyze the effectiveness of removal of iron (Fe) contained in well water using a combination of zeolite – pumice adsorbent media. One method that can be used to set aside iron (Fe) parameters in well water is the adsorption method. The adsorption process was carried out continuously with downflow for 150 minutes with sampling every 30 minutes for analysis with a Hach DR 1900 series spectrophotometer. Based on the results of the FTIR characterization analysis of zeolite adsorbents it was indicated that the functional groups were O–H hydroxy stretching vibrations, O-H bending vibrations, stretching vibrations. asymmetric Si-O-Si or Al-O-Al and symmetrical stretching vibration Si-O-Si or Al-O-Al. While the pumice adsorbent before and after being activated, there was a shift in wave numbers with the same functional groups, namely the O-H, C=O, Si-O and Al/Si-O bond groups. Of the five treatments, it is known that treatment V (ZEO30-AP70) is the most effective treatment in reducing Fe levels in well water with a removal efficiency of 98% in the 90th minute and the suitable isotherm model is the Langmuir isotherm with a maximum adsorption capacity of 0, 000739809 mg/g. Keywords: Well water, adsorption, zeolite, pumice
Perencanaan Bangunan Pengolahan Lumpur Studi Kasus: Perumda Air Minum Kota Padang (IPA Lubuk Paraku) Noor Azizah, Rifka; Mardiamon, Ressy; Fajar, Mutiara
Al-Ard: Jurnal Teknik Lingkungan Vol. 9 No. 2 (2024): March
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/alard.v9i2.2078

Abstract

Water Treatment Plants (WTP) in the process will produce mud which can cause shallowing of rivers due to the settling of the mud. Sludge deposition can occur if the sludge is not treated before discharged into water bodies. Based on PP no. 122 of 2015, drinking water processing production units should be equipped with residual sludge processing units from processing raw water into drinking water. Therefore, the aim of this planning is to plan a sludge processing unit at the Lubuk Paraku WTP of the Padang City Perumda Air Minum. Before planning a sludge processing unit, primary and secondary data will be collected to be used. Primary data was obtained from testing the characteristics of raw water produced based on the parameters pH, turbidity, PAC coagulant dosage and secondary data from companies including HSPK Padang City in 2022. Samples were taken using the grab sampling method, and the selection of alternative sludge processing was carried out using the Decision Analysis method. Matrix. The research results show data that the maximum mass and volume of sludge produced is 14,132.35 kg/day and 333.01 m3/day. The chosen sludge processing unit is a gravity thickener unit with a diameter of 8 m and a height of 6.2 m and a sludge drying bed unit with a length of 28 m, a width of 7 m and a height of 1.33 m. Each building is designed to have 3 units. The planned cost budget used in building the Lubuk Paraku IPA sludge processing installation for Perumda Air Minum Padang City is IDR 692,500,000,-.
Co-Authors Dalimunthe, Sahriwani Fajar, Mutiara Mardiamon, Ressy