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[GreenYes] Re: Dealing with sewage sludge

At 02:42 PM 8/17/2006 -0700, weedeat@no.address wrote:

>I read so much on sewage sludge, what is the best way to handle sewage
>sludge , would like to know what you (everyone ) thinks is the best.
>Thanks Keith

There is no single answer to this--circumstances vary so much and
lots of paths have been taken. One key thing is whether the sludge
is loaded with heavy metals and other unremovable toxins. If
not--leaving aside arguments about how much is acceptable--there are
a lot more options. If there is lead, arsenic, mercury, PCBs, and
suchlike in it then land application or other true reuse becomes
problematic. So a key to a "sustainable" sewer system is to keep the
toxins out. To put in another way, you can't look at sludge
management in isolation from the rest of the system....


Alan Muller, Executive Director
Green Delaware
Box 69
Port Penn, DE 19731 USA
fax (302)836-3005

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