The Helpful Gardener wrote:
Okay, "biosolids", as some are calling sewage sludge is cheap, to be sure. And the heavy metal issues of years back seem to have been addressed for the most part. But it is still loaded with low level pharmaceuticals and birth control and the concentration of protonaceous infectants (called [url=https://www.microbiologybytes.com/virology/Prions.html]prions[/url] is some six to seven time natural concentrations. As prions are starting to be linked to more than just mad cow, I'm not a fan. Yale University just found a [url=https://opa.yale.edu/news/article.aspx?id=6444]prion link to Alzheimers[/url]. And there is a number of fisherman from NC sick with very Alzheimer-like symptoms due to a prionic toxin from the waste streams of massive pig farms.
Plus it isn't really compost is it? It is digested by anaerobic organisms, not aerobic, and therefore not compost... too much splitting hairs? But it sounds like they added it to wood chips, and maybe they composted that? And is there enough heat to finally break down prions? Or waste stream add-ons like antibiotics and detergent additives? (although I have seen studies that say the soil biology seems to handel the low level AB...)
Plus spring is a lousy time to seed lawns; best done in fall... this guy is kinda fast, I think...
Well fiddlesticks. I had been all excited to find out that my county provides FREE compost to its residents... but I'm pretty sure it's sewer sludge stuff. They call it BioBlend. I've pasted below what their website says about it. So I should steer clear of this?
This bio-conversion facility using cutting-edge technology. This saves precious landfill space and turns residential waste into a revenue-generating soil-like compost product, called Bio-Blend. The fully operational plant can process up to 300 tons of waste daily for a 60 percent reduction in household materials going to a landfill. Such a reduction is accomplished without introduction of any chemical stimulants or outside sources of heat and ultimately provides a significant benefit to the environment.
Facts about BioBlend:
* Product registered as a soil amendment/conditioner by the U.S. Department of Agriculture.
* Approved by the Georgia State EPD for use as compost material appropriate for landfill closures.
* Certified as a Class A compost by the U.S. Environmental Protection Agency under 40CFR 503 regulations.
* Improves soil structure
* Inhibits rain runoff and soil erosion
* Reduces irrigation requirements
* Stimulates natural soil microbiology
* Builds soil humus and porosity
The initial phase is the mixing of municipal solid waste or residential waste with treated sewage sludge in the appropriate proportions to maintain the optimal carbon/nitrogen balance. For three days, this combination of sludge and waste is agitated in rotating drums called Ã¢â‚¬Å“digestersÃ¢â‚¬