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Originally posted by TiredofControlFreaks
reply to post by lonewolf19792000
I also have a great deal of knowledge on this subject.
The "chemical" used in sewage treatment plants is alum. It causes particulate to become heavy and sticky and causes the solids to sink to the bottom of the clarifyer where it can be captured and pumped out separate from the water, which is discharged to the environment.
Drying the sludge into pellets kills all bacteria so the pellets are sterile.
This is considered to be a more environmentally conscious means of recycling human sewage. In canada - it is classed as a product and sold to farmers. The pellets dissolve slowly and fertilize the field much more evenly. The liquid sludge (heavily contaminated with bacteria) sometimes runs off the land and contaminates waterways. Pellets do not.
The pellets however, have some drawbacks. The pellets are self-combusting and will smolder from the inside out if exposed to moisture (including humidity) - that is what causes the horrendous smell. Farmers would be doing themselves a favour if they applied the pellets before plowing.
The plants were the sewage is dried are prone to explosions because of this self-combusting property. In Ontario - every single pelletizing plant that was ever built exploded and to the best of my knowledge, sludge is no longer being pelletized in Ontario.
Tired of Control Freaks
I spent Christmas hearing about how nasty the pudding is because it contained suet from a guy eating stacks of bacon.
Originally posted by wutz4tom
It appears the argument is that fertilizer and treated human feces are not the same. But the story does not give any explanation as to the compound comparison.
Ofcourse this is just nasty, but are the chemicals in fertilizer any less dangerous?
Only thing I see is that "Granulite” is sewage sludge turned into dried pellets, 30 percent of which is made of human waste.
(visit the link for the full news article)
I work for an industrial equipment company and have had the opportunity to work in quite a few WWTF's.
Originally posted by angeldoll
reply to post by butcherguy
Hey Buddy! You know more about feces than anyone I've ever met!!! lol. Seriously. How do you know so much about all this stuff? I buy bags of rotted cow manure to double dig my flower beds everyother year or so, but that's the extent of my information.
Probably is the reason.
Originally posted by gemineye
reply to post by chuckk
I apologize because this is slighty off topic, but do you think that facility could be the reason that Ontario, CA sometimes smells like a barnyard? Of course, I haven't been there in a couple years but I remember there were days that the smell was almost unbearable. I always wondered what caused it.