New technology turns ‘solar industry waste into gold’

Want China Times
Date: 2015-03-28

Taiwan’s National Cheng Kung University (NCKU) on Thursday announced that its innovative

Chen Wei-sheng. (File photo/China Times)

Chen Wei-sheng. (File photo/China Times)

process that refines solar industry waste into raw materials for steel has been awarded with a patent.

NCKU said that the sludge waste created by the solar industry must be processed by the waste disposal companies specializing in either liquid or solid form.

While ethylene glycol can be extracted from the liquid portion and sold as fuel, solid waste materials often have no other disposal methods than being buried at landfills.

Chen Wei-sheng, an assistant professor at NCKU’s Department of Resources Engineering who led the development effort said that the process involves the use of physical, chemical or diversified treatment methods to extract reusable silicon and carbonized silicon from waste sludge.     [FULL  STORY]

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