Dredging of the wastewater treatment lagoon started on
November 30th. The dredge (red piece of equipment in the pond shown in the
picture) cuts and “vacuums” up accumulated sludge from the bottom of the pond
and sends it to a holding tank. The sludge then goes through a grinder, after
which a polymer is added before it enters a centrifuge where liquid is taken
out. The dried sludge is loaded into trucks (it takes about 4 hours to fill one
truck) and the liquid is returned to the pond. The dredging process is expected
to take 3-4 weeks.
