Air Quality

September 17, 2011

With restrictions on the quantity and quality of wastewater that treatment plants can release into rivers, lakes and the sea,  contemporary water based sanitation systems are left with huge amounts of sewer sludge.  Whether incinerated or spread on agricultural land, sludge compromises air quality.

Learn More

EPA Air Toxics Website has a page on Sewage Sludge Incinerators with complete information on rules, standards of performance, and emissions guidelines.

Wastewater Systems This industry site was designed to assist  novices and experts alike to understand wastewater treatment system technology.  It gives an excellent breakdown of components and processes, including sludge incineration.

See also PHLUSH Sewage Sludge page.


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    Public Hygiene Lets Us Stay Human, or PHLUSH, is an all-volunteer advocacy group founded in Portland's Old Town Chinatown. We collaborate with grassroots organizations, environmental activists, code officials and city planners.

    PHLUSH is a member of the World Toilet Organization and a partner in the Sustainable Sanitation Alliance.

    PHLUSH believes that toilet availability is a human right and that well-designed sanitation systems restore health to our cities, our waters and our soils.

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