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All Journal CHEESA: Chemical Engineering Research Articles Jurnal Indonesia Sosial Sains
Negsagis, Reco Rambang Putra
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Silica Filter Membrane by Utilizing Palm Oil Empty Bunches Waste Negsagis, Reco Rambang Putra; Firmansah, Hari; Marsedi, Ultra
Jurnal Indonesia Sosial Sains Vol. 5 No. 04 (2024): Jurnal Indonesia Sosial Sains
Publisher : CV. Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jiss.v5i04.1081

Abstract

Keramasan Gas and Steam Power Plant uses river water as raw material after going through treatment in the WTP system. To overcome the problem of high silica value in demin water, a ceramic filter membrane device was developed from empty palm oil bunch waste that reduced silica content to standards. This research aims to improve water treatment efficiency to meet the established water quality standards. Keramasan Gas and Steam Power Plant uses river water sources as raw materials, which are processed through the WTP (Water Treatment Plant) system to produce demineralized water as the main supply in the HRSG water filler system. However, the water treatment process has not been optimal because the silica content in demin water is still high (>20 PPB), violating the established quality standards (<20 PPB). Therefore, this study proposes an innovation in the form of a ceramic filter membrane from empty palm oil bunch waste to reduce silica content. Tests show a decrease in silica values to standard. These innovations have had a positive impact, including chemical savings, water treatment optimisation, and wastewater reduction. In addition, the use of empty palm oil waste also contributes to efforts to reduce environmental pollution.
Reducing Silica Levels in WTP PLTGU X Wastewater using Rice Husk Filter Membranes Setiorini, Indah Agus; Pratiwi, Indah; Rusnadi, Irawan; Miarti, Amiliza; Faputri, Achmad Faisal; Sari, Dian Kurnia; Negsagis, Reco Rambang Putra
CHEESA: Chemical Engineering Research Articles Vol. 7 No. 2 (2024)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v7i2.15576.103-110

Abstract

During the water demineralization process, silica content is increased due to the failure of the chemical reagent. This shows the need to perform a blowdown action to reduce silica content in the water. Therefore, this research aimed to determine the effectiveness of silica reduction in the Water Treatment Plant (WTP) of PLTGU X by observing the permeate flux values relative to time and operating pressure variables, using ceramic membrane made from rice husk. To achieve the objective, ceramic membrane was made from rice husk additives, with a pore diameter of 365 nm and a surface area of 25 cm². The results showed that the composition ratio of clay, rice husk, and iron powder was 82.5%, 15%, and 2.5%, respectively. Furthermore, ceramic membrane with rice husk additives successfully reduced silica content from 1250 ppb to 890 ppb at a pressure of 1.5 bar and 90 minutes of operation and from 1250 ppb to 710 ppb at 2 bar and 90 minutes of operation. This suggested that wastewater could be processed again in the demineralization plant to produce demineralized water. The best membrane performance in the filtration process was achieved at 90 minutes with a pressure of 2 bar, which successfully reduced silica content by 43.2%, with a permeate flux of 3.44 L/m².
Co-Authors Achmad Faisal Faputri Dian Kurnia Sari Firmansah, Hari Indah Pratiwi Irawan Rusnadi Marsedi, Ultra Miarti, Amiliza Setiorini, Indah Agus