Your Private Septic System and the Soil Type on your Property Part Four

Your Private Septic System and the Soil Type on your Property Part Four It'll be a real help to you, to know just what the EPA recommends. When you are haven to deal with your local Health Officials, Engineers, and Septic System Designers. The following diagram is a conventioal subsurface wastewater infiltration system.

The treatment options include physical, chemical, and biological processes. The use of these options will be determined by your site's specific needs.

The right hand column of the following chart shows you many of the different approaches that can be taken, all depending on just what the objective is for your site.

Treatment objective	Treatment process	Treatment methods
Suspended solids removal	Sedimentation	Septic tank Free water surface constructed wetland Vegetated submerged bed
Filtration	Septic tank effluent screens Packed-bed media filters (incl. dosed systems) Granular (sand, gravel, glass, bottom ash) Peat, textile Mechanical disk filters Soil Infiltration
Soluble carbonaceous BOD and ammonium removal	Aerobic, suspended-growth reactors	Extended aeration Fixed-film activated sludge Sequencing batch reactors (SBFs)
Fixed-film aerobic bioreactor	Soil infiltration Packed-bed media filters (incl. dosed systems) Granular (sand, gravel, glass) Peat, textile, foam Trickling filter Fixed-film activated sludge Rotating biological contractors
Lagoons	Facultative and aerobic lagoons Free water surface constructed wetlands
Nitrogen transformation	Biological Nitrification (N) Denitrification (D)	Activated sludge (N) Sequencing batch reactors (N) Fixed film bio-reactor (N) Recirculating media filter (N, D) Fixed-film activated sludge (N) Anaerobic upflow filter (N) Anaerobic submerged media reactor (D) Submerged vegetated bed (D) Free-water surface constructed wetland (N, D)
Ion exchange	Cation exchange (ammonium removal) Anion exchange (nitrate removal)
Phosphorus removal	Physical/Chemical	Infiltration by soil and other media Chemical flocculation and settling Iron-rich packed-bed media filter
Biological	Sequencing batch reactors
Pathogen removal (bacteria, viruses, parasites)	Filtration/Predation/Inactivation	Soil infiltration Packed-bed media filters Granular (sand, gravel, glass bottom ash) Peat, textile
Disinfection	Hypochlorite feed Ultraviolet light
Grease removal	Flotation	Grease trap Septic tank
Adsorption	Mechanical skimmer
Aerobic biological treatment (incidental removal will occur; overloading is possible)	Aerobic biological system

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Phone: 603-826-4207

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Post 574- 29 Aug. 2009-Posted at: Localism.com/neighbor/bakerhome all links open in a new window