Sustainable Land Development Today - May 2008 - (Page 11)

through drip tubing systems to water lawns. The grey water that comes out of showers and laundry can be cleaned to flush the toilet and any excess water can be also used to water the lawn. “That’s 100-percent recycling right within a house,” Millard said. Purple pipe Some parts of this country already incorporate a secondary water infrastructure, which uses purple pipe to differentiate it from the potable water supply lines. A treatment plant takes in wastewater, runs it through a fine filter or membrane and then past ultraviolet lamps to sterilize it and a trace of chlorine is added. The result is a high-quality, reuse water that can be returned to homes via the purple pipe, typically to a hydrant near the driveway, according to Millard. It’s not for drinking or showering, but could be used for a host of other purposes that would otherwise deplete the potable water supplies, such as irrigating lawn, flushing toilets, washing cars, or industrial uses. Graphic courtesy of Arris Pty Ltd. “That concept is just getting started in Georgia. All communities built in the last ten years or so in Florida have had purple pipe run back to them. They ran low on fresh water before Georgia did,” Millard said. “They don’t bring it into the house. That is something that is coming in the future.” A tip from nature Millard favors treatment systems that count on nature to do most of the work of cleaning the wastewater. “The systems we like to work with don’t look like a treatment plant. They are simply plain green tanks buried in the ground that you can plant shrubbery around and hide. People work and play around them and don’t know they are there,” Millard said. “They are very simple, very robust, easy to operate and consistently generate high-quality water.” The water is collected in a couple of different fashions: I Conventional gravity with a lift station to pump it to the water treatment plant. I With a low-pressure sewer system that have grinder pumps at each Sustainable Wastewater Solutions for the Decentralized Market Turnkey Solutions provided in the Southeast Design Services, Products, and Operation Support offered nationwide V V V denus Circle 173 • or www.SLDTonline.com/webcard ® 1-888-4ADENUS ~ www.Adenus.com www.SLDTonline.com 11 http://www.Adenus.com http://www.Adenus.com http://www.SLDTonline.com/webcard http://www.SLDTonline.com

Table of Contents Feed for the Digital Edition of Sustainable Land Development Today - May 2008

Sustainable Land Development Today - May 2008 Contents Our Voice Editorial Board SLDT Resources Addressing a Crisis with Wastewater Recycling Visionary Award Finalists The Jonquil City - How a City Revitalized its Downtown Industry Spotlight: Enviroquip Solar Power System Design and Installation Stormwater: The Return of the Cistern Site Amenity: Fiber Optics Surveying and Mapping Wastewater: Low-Pressure System Special Feature: The Urban Canopy as Infrastructure Industry News Advertiser Index Products/Services Showcase Classifieds The Last Word: Nature Bats Last…

Sustainable Land Development Today - May 2008

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