[GreenYes] Re: Dealing with sewage sludge

[Alan Muller <amuller@no.address>]

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



>
Alan Muller, Executive Director
Green Delaware
Box 69
Port Penn, DE 19731 USA
(302)834-3466
fax (302)836-3005
greendel@no.address
www.greendel.org 


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