Prevention of water pollution by control of sediments
Sediment is a naturally occurring material such as soil, debris and pollutants that is broken down by processes of weathering and erosion.
Published on: Mar 4, 2016
Transcripts - Prevention of water pollution by control of sediments
Prevention of Water Pollution by Control of Sediments
Sediment is a naturally occurring material such as soil, debris and pollutants that is broken down by
processes of weathering and erosion. Through rain the sediment can travel from a site and run into
the drains and gutters entering storm water systems and ending up in the lakes, wetlands, rivers and
finally the sea. Soil erosion from construction sites causes major environmental problems for
waterways and aquatic life. Sediments washed to waterways have a great impact on the habitats of
aquatic flora and fauna. Sediments also block the storm water drains thereby increasing the risk of
floods. Hence to prevent the habitats of flora and fauna and to avoid the environmental problems,
Sediment Control is important.
A practice or a device that is designed to keep the eroded soil on a construction site, so that it
does not wash off and cause water pollution to a nearby stream, river, lake, or sea is what is
known as Sediment Control. These devices are used to keep Sediment in Control. Sediment
controls are usually utilized together with the erosion controls, which are designed in such a
way so as to prevent or minimize erosion and thus reduce the need for sediment controls.
Sediment controls are generally designed for temporary measures, but, some can be used for
storm water management purposes. Some of the commonly used methods of Sediment
Sand bag barrier
Storm drain inlet protection
Straw bale barrier
For preventing the Sediment Control, the most effective method is to create a fence that keeps
sediment in control. This method is also called as Sediment Control Fence. The geotextile fence
provides the best way to control the sediments and if installed and maintained correctly, it can last up
to six months. They are designed in such a way that it allows the flow of water even through the trap
soil. The straw bales should only be used in synchronous with sediment forces as they have limited
life span and start polluting the drains when they break down. These fences have a lot of advantages
as well, such as 1. It avoids the soil and unwanted debris to enter the Storm water. 2. Ideal for use on
Construction sites and Industrial Estates. 3. Can be installed easily using star pickets.
Because of the advantages of using fence for controlling sediment, it is defined as the most efficient
For More info :http://www.zimbio.com/News/articles/tbBa2KlgPRN/Prevention+Water+Pollution+Control+Sedime