[p2tech] Waste water treatment

The flocculated material would be treated as a special waste in Tennessee, whether it is recovered by a recycler or not.  Are there exemptions in other states that you guys know of when the material has an obvious recyclable end-use?      
 
Vaughn Cassidy
West TN Environmental Coordinator
Office of Environmental Assistance
Tn. Dept. of Environment and Conservation
Office: (731) 512-1343
Cell: (731) 267-8963
Fax: (731) 661-6283
www.tdec.net 
  

>>> "Bruce Taylor" <btaylor at enviro-stewards.com> 7/28/2009 5:10 PM >>>
Michelle

Evaporation is likely more impact on the environment than precipitation of the metal by adjusting the pH and adding a coagulant.

If the concentration is high enough, copper recovery might also be an option.

Regards

Bruce

Sent from my BlackBerry device on the Rogers Wireless Network
From: "michelle gaither" 
Date: Tue, 28 Jul 2009 12:35:00 -0700
To: p2tech<p2tech at great-lakes.net>
Subject: Waste water treatment

I know this is end of pipe treatment, but if you can bear with the question - and consider the P2 angle of determining which treatment method has lower environmental impact.....  
 
I am looking for studies or case example/comparisons of treating wastewater on site using evaporation vs. another treatment method, e.g., electrocoagulation.   
I am trying to determine if evaporation is the best option (which is of course, a major energy consuming process).
 
This wastewater contains copper.
 
Thanks.

Michelle Gaither
1402 Third Ave, Suite 1420 | Seattle, WA 98101
T 206.352.2050 | F 206.352.2049| www.pprc.org ( http://www.pprc.org/ ) 
Pacific Northwest Pollution Prevention Resource Center
practical solutions for economic and environmental vitality 
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