Desalination Process via Pervaporation of Wetland Saline Water

International Conference on Industrial Technology for Sustainable Development 2017

工业技术;经济学

Elma, Muthia^1 ; Hairullah^1 ; Assyaifi, Zaini Lambri^1

Chemical Engineering Study Program, Engineering Faculty, Lambung Mangkurat University (ULM), Banjarbaru, Indonesia^1

关键词: Dip-coating process;    Feed temperature;    High temperature;    Lower temperatures;    Pure silica;    Silica membrane;    Tetra-ethyl-ortho-silicate;    Water scarcity;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/175/1/012009/pdf
DOI  :  10.1088/1755-1315/175/1/012009

学科分类：工业工程学

来源: IOP

【 摘 要 】

Water is a very important resource for life on earth. Nowadays, water scarcity is a big issue around the world. Especially people who live in wetland areas, river is an important water source for their daily life. Unfortunately, the water becomes salty due to seawater intrusion into the river. The objective of this work is to apply desalination via pervaporation process of wetland saline water using pure silica membranes employ TEOS (tetraethyl orthosilicate) as a precursor. A two-step acid-base catalysed method has been applied to produce silica sols. The pure silica membranes were calcined under RTP (Rapid Thermal Process) method at 600°C for 1 hour. The various temperatures (20, 40 & 60 °C have been set in pervaporation set up in order to investigate the performance of silica membranes. It was found that at high temperature, silica membranes start to densify and give the lowest rejection compare to lower temperatures (84.9 %). In contrary, there was 100% of water flux increases when the feed temperature increases (from 0.61 to 1.19 kg m-2 h-1)