A small and simple plastic desalination device

Junko Tajima, Kosuke Saito, Haruki Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A simple and small desalination device is being developed for providing fresh water from blackish-or sea-water without any infrastructure except solar energy. More than ten years ago, we developed a 100 kg•day-1 solar desalination system using a material of titanium.[3] The price of the device was too expensive. The objective of study is development of domestic device to provide fresh water by solar energy. Decompression and multiple-effect indoor distillation device was developed, which is a cylindrical shape plastic with metal membrane for water boiling and condensing. For decompression, vacuum pump is used. This electricity can be managed by using a battery and photovoltaic cells. It is possible to test four-stage multiple-effect distillation. The best material of the membrane was coated titanium with photocatalytic active treatment by reinforced carbon process. The electric conductivity of fresh water was 7 μS•cm-1, which is the value for the level of commercial distilled water.

Original languageEnglish
Title of host publicationWorld Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conference
Pages45-48
Number of pages4
Publication statusPublished - 2012 Dec 31
EventWorld Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conference - Denver, CO, United States
Duration: 2012 May 132012 May 17

Publication series

NameWorld Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conferen
Volume1

Other

OtherWorld Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conference
CountryUnited States
CityDenver, CO
Period12/5/1312/5/17

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ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Cite this

Tajima, J., Saito, K., & Sato, H. (2012). A small and simple plastic desalination device. In World Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conference (pp. 45-48). (World Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conferen; Vol. 1).