Improvement of tap water quality for domestic use by membrane process

Bui Xuan Thanh * , Vo Thi Dieu Hien , Cao Ngoc Dan Thanh , Truong Minh Hong and Vo Thi Kim Quyen

* Corresponding author (bxthanh@hcmut.edu.vn)

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Received: 19 Jun 2016
Revised: 19 Sep 2016
Accepted: 31 Oct 2017
Published: 29 Nov 2017
DOI: 10.22144/ctu.jen.2017.041
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Bui, X. T., Vo, T. D. H., Cao, N. D. T., Truong, M. H., & Vo, T. K. Q. (2017). Improvement of tap water quality for domestic use by membrane process. CTU Journal of Innovation and Sustainable Development , (07), 1-5. https://doi.org/10.22144/ctu.jen.2017.041
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No. 07 (2017)

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Abstract

Nowadays, clean water supply demand is increasing day by day in Ho Chi Minh city (HCMC) due to the rapid increase of population. It has gained concerns about water supply management and improving tap water quality of domestic use. Moreover, the results achieved from laboratory analysis of those tap water samples did not comply with the water quality standard due to low pH, high hardness and high ammonia concentration. In order to improve the water quality, low pressure reverse osmosis membrane system was proposed to polish quality of tap water. The pollutant removal of membrane system analyzed on NO3--N, NH4+-N, total Fe, hardness and residue Cl- were 41 ± 17.6 %, 18 ± 16.9 %, 47 ± 26 %, 39 ± 6 % and 94 ± 6.9 %, respectively. The results show that the low-pressure reverse osmosis membrane could achieve effective improvement of water supply quality for domestic use and satisfy the demand of clean water in HCMC. 
Keywords: Membrane, reverse osmosis, water quality, water supply

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