Some times, water is run through a sieve to help remove silt and sand.

In 2006, Taylorville City Council began to discuss the issue of dredging the lake to remove unwanted silt.

Its purpose was to remove silt from Arkansas River water, which was then piped to users in Tulsa.

The state government periodically removes silt and pollutants from the Adyar river, which is less polluted than the Cooum.

This involved dredging the worst hit areas of the river to remove mud and silt and return the bed to chalk and gravel.

Acting as a kind of sieve, the lake removes silt and sand from the river, allowing it to sink to the lake bed.

Bioswales are landscape elements designed to remove silt and pollution from surface runoff water.

The cost of removing deposited silt in the dam is equal to the construction of a new dam,therefore economically not viable.

By the time they finish, the Army Corps and its contractors will have removed enough silt, clay and rock to fill Giants Stadium 17 times.

In addition, sluice gates have also been provided in the body of the dam at lower levels to remove silt deposited in the dam.