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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By the time we complete the Inspection, you will know the Home or Commercial Property better than the owner does!
God Bless America, The land we love

A home inspection from Baker Home Inspection and Consulting, will give you peace of mind, so you and your family can enjoy the things you like to do!
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When buying, renting a Home or Commercial Properties or Relocationing in or to Sullivan County, New Hampshire, Windsor County, Vermont, or nearby Counties. When "Good Enough" Isn't, call Baker Home Inspection and Consulting to schedule, Your Inspection.
Phone: 603-826-4207
Mobile: 603-477-8072
Post 574- 29 Aug. 2009-Posted at: Localism.com/neighbor/bakerhome all links open in a new window


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When "Good Enough" Isn't, call Baker Home Energy Audit and Commercial Properties Inspections to schedule, Your New Hampshire and Vermont Home Energy Audit or Commercial Property Inspections!
Phone: 603-826-4207
Mobile: 603-477-8072
Posted at: Localism.com/neighbor/bakerhome

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Howdy Dale-Quite the detailed report on septic systems and soil type. Nicely done my friend. :-)