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Seawater desalination with solar-energy-integrated vacuum membrane distillation system
- Source :
- Journal of Water Reuse and Desalination, Vol 7, Iss 1, Pp 16-24 (2017)
- Publication Year :
- 2016
- Publisher :
- IWA Publishing, 2016.
-
Abstract
- This study designed and tested a novel type of solar-energy-integrated vacuum membrane distillation (VMD) system for seawater desalination under actual environmental conditions in Wuhan, China. The system consists of eight parts: a seawater tank, solar collector, solar cooker, inclined VMD evaporator, circulating water vacuum pump, heat exchanger, fresh water tank, and brine tank. Natural seawater was used as feed and a hydrophobic hollow-fiber membrane module was used to improve seawater desalination. The experiment was conducted during a typical summer day. Results showed that when the highest ambient temperature was 33 °C, the maximum value of the average solar intensity was 1,080 W/m2. The system was able to generate 36 kg (per m2 membrane module) distilled fresh water during 1 day (7:00 am until 6:00 pm), the retention rate was between 99.67 and 99.987%, and electrical conductivity was between 0.00276 and 0.0673 mS/cm. The average salt rejection was over 90%. The proposed VMD system shows favorable potential application in desalination of brackish waters or high-salt wastewater treatment, as well.
- Subjects :
- Low-temperature thermal desalination
solar energy
Filtration and Separation
02 engineering and technology
Membrane distillation
Desalination
law.invention
desalination
lcsh:Water supply for domestic and industrial purposes
020401 chemical engineering
law
Heat exchanger
0204 chemical engineering
seawater
Water Science and Technology
lcsh:TD201-500
Brackish water
business.industry
Chemistry
Environmental engineering
021001 nanoscience & nanotechnology
Solar energy
hollow-fiber membrane
Vacuum pump
Seawater
vacuum membrane distillation
0210 nano-technology
business
Subjects
Details
- ISSN :
- 24089370 and 22201319
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- Journal of Water Reuse and Desalination
- Accession number :
- edsair.doi.dedup.....a345d1ba203d65285b9891cc0ca9d742
- Full Text :
- https://doi.org/10.2166/wrd.2016.207