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How to Use Peat as a Septic Media Filter InspectAPedia®  -

• Peat septic media filters
• Septic filter capacity, maintenance, dosing control

This document discusses the design and use peat septic media filter systems. Peat media filter septic systems use a conventional septic tank followed by any of several methods to further filter and treat septic effluent before it is discharged to the soil, soil surface, or waterway.

Peat-based septic media filter types are explained here. We include a list of product sources for various types of septic filters.

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Design & Use of Septic Media Filters Using Peat

Septic effluent treatment systems using peat as the filter media include an effluent dosing system, peat filter media, and a drainage system. Unlike sand bed filters, peat filtration systems are sold as prepackaged systems which provide modular peat units enclosed in containers or "pods" ready to install. Peat filter media systems may receive effluent doses by a pump system (similar to sand filter systems) or by a gravity-operated tipping bucket which, when filled with effluent, tips to distribute the effluent into the media distribution pipes.

Jantrania/Gross point out that you should not try to build your own septic treatment system using peat from a local landscaper as such material has a short life.

Peat which is intended to be used as a septic media filter is specially selected and perhaps treated and prepared by the manufacturer, and has an 8-20 year life expectancy. Peat from the local nursery may not last more than a year or two.

Septic effluent which has been processed through the peat biofilter is discharged into a soil absorption system such as a stone bed below the peat pods, or to a dosing tank where it is pumped to a mound or other soil absorption system.

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Product Source List for Filters, Septic Filters & Wastewater Treatment Systems Using Filtration Methods

• Amphidrome from F.R. Mahoney, Associates, is a "sequencing batch reactor" or effluent recycling system (approved in MA) cycling effluent between the septic tank and a reactor vessel.
• AdvanTex- Onsite Wastewater Treatment Systems from Orenco uses a textile filter in a fiberglass basin.
• Biomicrobics wastewater treatment include BioSTEP, a screened pumping system, BioBarrier membrane bioreactor (MBR) which produces ultra-clean effluent Lixor, their submerged aeration system, SaniTEE wastewater screens and other wastewater treatment systems and products.
• Biocycle Wastewater Treatment a BioCycle Unit, Tertiary Polishing Filter and Monitoring System.- Ireland
• Bioren & Living Filter alternative wastewater treatment systems - Mass. USA
• Bioclere from AquaPoint (MA) is a trickle-filter effluent treatment system
• Peat Filters for septic effluent treatment, University of Minnesota Information Article on Peat Systems
• Ruck systems (in MA) "Traditional RUCK- [Residential Septic] Systems are passive innovative septic systems that are designed to remove nitrogen and provide excellent treatment for an on site septic system." Commercial products are also available. This is an in-ground filter system installed between the septic tank and the absorption field.
• SeptiTech Residential and Commercial Wastewater Pretreatment Systems include a fixed film effluent trickling filter and a patented effluent treatment media.
• Waterloo biofilter trickle type wastewater filter and systems using aeration combined with foam filter media; effluent is sprayed over foam.
• Product listing submissions are welcome; there is no listing fee.

References for this Septic Media Filters Discussion

Our text draws heavily on Dr. Jantrania &Gross's work and on New York State Water Treatment Standards.

New York State Wastewater Treatment Standards - Individual Household Systems, Appendix 75-A (1990), Public Health Law 201(1)(1).

New York State Alternative Septic System Design Regulations, Wastewater Treatment Standards - Individual Household Systems, Appendix 75-A, of Public Health Law 201(1)(1) 1990.

Anish Jantrania, Ph.D., P.E., M.B.A., Consulting Engineer, Mechanicsville VA, 804-550-0389
NOTE: be sure to examine Dr. Jantrania's new (2006) book,
Advanced Onsite Wastewater Systems Technologies which can be
ordered from his publisher.

The Septic System Owners's Manual, Lloyd Kahn, Blair Allen, Julie Jones, Shelter Publications, 2000. IS N 0-936070-20-X

Onsite wastewater treatment systems, Bennette D. Burks & Mary Margaret Minnis. Textbook and reference manual on all aspects of onsite treatment. This is one of the best books we've reviewed on the subject, with an excellent balance of clear simple explanation and solid engineering. Topics: Soil & Site Selection, Hydraulics, System Selection & Design, Wastewater Biology, History & Mythology of Onsite Wastewater Treatment. $49.95, Hogarth House, Ltd, 800-993-2665 x327 to order *800 -993-2665 x327 (Univ. Wisc. Bookstore)

Boxerwood Gardens is an arboretum and nature center in Lexington VA, and the generous contributor of the illustration of a gravel-bed natural septic media filter system discussed above.

Peat Media Septic System Designs & Suppliers

• Ecoflo Pennsylvania system - distributed in Falling Springs Technologies, PO Box 410, Newburg, PA 17240 http://www.ecoflopa.com   - (814) 632-9692.
• Puraflo peat biofilter – distributed in Pennsylvania by Site Development Services, PO Box 5873, Wyomissing, PA 19610, 610-478-9900, puraflo1@comcast.net

More Information on Building Diagnostic Inspections and Repairs

• Septic Filters & Graywater Filters in-tank septic filters or graywater filters to keep solids out of the absorption system


• The Septic System Information Website home page for this topic
• Septic Systems Inspection, Testing, & Maintenance- online textbook. Detailed how to inspect, maintain, repair information
• The Home Buyer's Guide to Septic Systems
• Septic Tank Pumping Guide: When, Why, How to pump the septic tank
• Home & Outdoor Living Water Requirements
• Septic Tank Capacity vs Usage in Daily Gallons of Wastewater Flow, calculating required septic tank size, calculating septic tank volume from size measurements
• How Big Should the Leach Field Be? - table of soil percolation rate vs. field size
• Septic System Drainfield Absorption System Biomat Formation - what leads to drain field clogging and expensive drainfield repairs
• Table of Required Septic & Well Clearances: Distances Between Septic System & Wells, Streams, Trees, etc.

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