Building A Conventional Sewage Treatment Facility

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As in the case of rural non-point source pollution; urban areas are not likely to fix all contamination problems with one system. While it may be possible to build a conventional sewage treatment facility that can handle any storm condition it is not likely that this will ever be cost feasible to do. One type of larger combined sewage system that is being tried in several locations around the county where proper topography allows is the aquatic marsh system. In this type of system sewage still goes through the primary treatment of separation out the larger solids. Once these solids have settled out it move on to the secondary treatment where it undergoes another process to remove biochemical oxygen demand. This is done through introducing…show more content…
While the wet-land treatment system is very effective in treating large quantities of sewage it still falls short of the large problem. It still is not treating the problem at its source. There are other options and systems that are in place to deal with urban pollution issues and flooding. Some example of systems that have the potential to mitigate urban at their source are implementing low impact development, installation of sand filters, infiltration trenches permeable pavers, storm water planters and green roofs. Low impact development (LID) is not a new concept but is still considered innovated when being discussed. LID is a storm water management program that manages storm water on site compare to conventional systems that pipe it off to a central treatment facility or directly into local water ways. Storms waters in the natural environment normally soak into the ground and are filter by the soils and vegetation. When areas are urbanized the water now running off taking contaminate with them. These waters can flow at fast rates causing increased flooding. The goals of LID are to lessen the impact storm waters on the natural environment, use land more efficiently, and help to lower cost. Site planning includes, “minimizing areas of disturbance, maintaining, and restoring natural buffers, minimizing impervious cover, disconnection impervious cover and minimizing soil compaction.” Examples of
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