holcim prize 2011

In the morning of May 25, in Can Tho city, Vietnam Holcim Cement Company and Petech Science and Technology Joint Stock Company held a ceremony to accept and hand over the floating

The theme 'Design of freshwater distillation equipment for household in coastal areas' won the first prize in the final round of Holcim Prize 2011 held on September 20 in Can Tho.

Using 2 rectangular boxes and pyramids, using solar energy to distill salt water into fresh water, two Can Tho University students have just won the first prize of Holcim Prize