Rough Feasibility of a prospective village sewage treatment plant?

Question

Hey Guys,
I would like to know how you would go about ball-pointing the feasibility of a sewage treatment plant at the get go. In other words ,before anyone decides to spend any money on a thorough feasibility study. Namely ,I'm interested in bare minimum space requirements (rough cost) for say sewage treatment of a 10,000 population town for reuse in irrigation .I know there are many factors at play here but I'm speaking in very general terms .
Any input would be appreciated and stating some helpful resources would also be appreciated.

Anonymous · Answer

There are packaged waste treatment plants available.  Usually 1 million gallons per day is a reasonable size (excluding storm sewer requirements) for residential requirements for 10,000 people (about 100 gallons per day).

Siemens offers such packages, as do others.  The plant is usually a single tank roughly 40 feet in diameter and 8 feet high, with additional requirements for pads for grinders, sump pump and controls, blowers for the aerobic sections, a dumpster for scraped solids, UV and or other tertiary treatment, plus blower to collect offgas and treat it to safe release levels.

http://www.water.siemens.com/en/products/biological_treatment/wastewater_package_treatment_plants/Pages/default.aspx
... and lots of other choices, this is just one firm I am aware of.

Rough Feasibility of a prospective village sewage treatment plant?

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