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All Journal JURNAL KIMIA SAINS DAN APLIKASI
Isna Syauqiah
Chemical Engineering Department, Universitas Lambung Mangkurat Banjarmasin
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering

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Interlayer-free Membran Silika Pektin untuk Pervaporasi Air Rawa Asin Erdina Lulu Atika Rampun; Muthia Elma; Isna Syauqiah; Meilana Dharma Putra; Aulia Rahma; Amalia Enggar Pratiwi
Jurnal Kimia Sains dan Aplikasi Vol 22, No 3 (2019): Volume 22 Issue 3 Year 2019
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2440.738 KB) | DOI: 10.14710/jksa.22.3.99-104

Abstract

Wetland in South Kalimantan is one of surface water sources to provide clean water. However, seawater intrusion has spread into the wetland aquifer and reduce the quality of water. Silica-pectin membrane is a promising technology for desalination. The membranes were tested for desalination by pervaporation at room temperature (~25 °C). During pervaporation process, the water contacts to membrane and the separation is started to occurs as vapour phase by maintaining vacuum pressure (~1 bar). The permeate was collected in the cold trap after condensed using nitrogen liquid. The purpose of this research was to investigate the performance of interlayer-free silica pectin membrane for wetland saline water. Experimental results shows the fluxes of membrane are 0.35 and 0.19 kg.m-2 h-1 ( pectin 0%wt); 0.23 and 0.16 kg.m-2 h-1 (pectin 0.1%wt); 0.58 and 3.63 kg.m-2 h-1 (pectin 0.5%wt); 3.40 and 0.12 kg.m-2 h-1 (pectin 2.5%wt) calcined at 300 and 400 °C, respectively. Natural organic matter (NOM) and salt concentration in wetland saline water can reduce the fluxes up to (~98%). Nevertheless, overall salt rejection of membranes achieved >99%. It was found that low calcination gives better performance at high pectin concentration. While pectin concentration was limited at high calcination.
Co-Authors Amalia Enggar Pratiwi Aulia Rahma Erdina Lulu Atika Rampun Meilana Dharma Putra Muthia Elma