From SourceWatch
Jump to navigation Jump to search
Toxic sludge 80px.png

WARNING! Sewage sludge is toxic. Food should not be grown in "biosolids." Join the Food Rights Network.

GreenEdge is a GreenTechnologies, LLC "slow release fertilizer" derived from sewage sludge and sold for use on lawns and gardens, as well as golf courses in Florida.[1][2]

GreenEdge is produced in communities including Lakeland, Florida,[3] contracts with cities such as Jacksonville, Florida, to turn its sewage sludge into treated sludge pellets and return some profits to the local utility company, JEA (which "sells the product for about $60,000 annually"), and sells the products at stores including local Ace Hardware stores, where shoppers are encouraged to buy the product instead of Milorganite because it's local, in order to "keep the money here."[4]

Controversial Claims Made About GreenEdge


Hundreds of communities across the U.S. sell toxic sludge products that are typically renamed biosolids and sold or given away as "fertilizer" or "compost" (and often even labeled or marketed as "natural" or "organic"). GreenEdge is advertised as "organic fertilizer." The company's founder, president and chief technology developer, Amir Varshovi, told Florida newspaper the Lakeland Ledger that "the advantage with the GreenEdge fertilizer is that it's organic and works well for Florida's sandy soils."[3]

The U.S. Department of Agriculture National Organic Program bans the use of sewage sludge in organic agriculture.[5]


The product has been called "100% safe,"[4] but many hazardous contaminants are found in toxic sludge, according to many scientific studies.


It has been called "earth-friendly," "environmentally friendly"[2] and "sustainable,"[3] but before the Ocean Dumping ban of 1987 went into effect in 1992, sludge dumped into the ocean caused vast dead moon-scapes on the ocean floor. And the land “application” of treated sewage sludge pollutes "the whole chain of life for which soil is the base."[6]


In 2002, Varshovi told the Jacksonville Business Journal that "the No. 1 reason people should use [GreenEdge] is it is ergonomically better material."[2] Varshovi has a doctorate in turf grass nutrition and soil fertility from the University of Florida, but neither his statement nor the Journal article explained how the sludge product could be "ergonomic."



PO Box 357905
Gainesville, FL 32635
Phone: (352) 379-7780
Online Contact Form:

Articles and Resources

Related SourceWatch Articles

PRWatch Articles

External Resources


  1. GreenTechnologies, LLC, Brochure, product brochure, accessed April 2012
  2. 2.0 2.1 2.2 Jessica Gellady, Waste not: JEA creates earth-friendly fertilizer, Jacksonville Business Journal, July 15, 2002
  3. 3.0 3.1 3.2 Elvina Nawaguna, Lakeland Gets Fertilizer Plant Green Technologies; Hopes to Collaborate With USF Poly, Lakeland Ledger, April 18, 2012, accessed April 2012
  4. 4.0 4.1 Matt Galnor, Treated sewer sludge turning profit for JEA, Florida Times-Union, March 9, 2004, accessed April 2012
  5. U.S. National Archives and Records Administraiton, Electronic Code of Federal Regulations, Title 7: Agriculture, PART 205—NATIONAL ORGANIC PROGRAM, Subpart B—Applicability § 205.105 Allowed and prohibited substances, methods, and ingredients in organic production and handling., federal regulation, accessed April 2012
  6. About Sewage Sludge,, accessed April 2012
  7. GreenTechnologies, About GreenTechnologies, corporate website, accessed April 2012
  8. Amir Varshovi, LinkedIn profile, online business profile, accessed April 2012
  9. Organic-based fertilizer, USPTO Applicaton #: #20050022569 - Class: 071006000 (USPTO),, 2005, accessed April 2012
This article is a stub. You can help by expanding it.