Previous Designs

Challenges

Fall 2008

Feedback from the interns in Honduras has shown that settling is occurring in the slopes at Marcala. This is thought to be occurring because the bottom angle is too shallow and because the exit velocity from the slopes is too low. Some literature review showed that to prevent settling and floc break up, the velocity should be around 5 cm/s. When possible, the lower angle for future designs was changed from 10 deg to 30-40 deg.
An algorithm was needed to automate the design of the slopes. After several versions, it was decided that exit ports would be needed at the slope exit. A description of this algorithm can be found here.

Project Sites

A complete list of completed designs can be found on the Project Sites page. This page is maintained by students in Honduras working on the plants and supervising the construction. It provides a background of the site, as well as updates regarding construction and operation.