From the article: Havre, MT is using this approach and has been able to put off a $1MM upgrade to its wastewater plant (in addition to saving $16k to date on alum).
Bozeman, MT but is not currently using the process, as you noted.
"We know the alum that we saved already is about $16,000 a year for sure. But if that wouldn't have done it, that's when an upgrade around the corner would have been, and then if we have to do an upgrade, there's where you run into the millions," Newfield says.
Using the grain definitely saved them $16,000 a year in using alum, which may not have been as effective. If the alum hadn't worked, then they would have had to make the $1million investment.
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From the article: Havre, MT is using this approach and has been able to put off a $1MM upgrade to its wastewater plant (in addition to saving $16k to date on alum).
Bozeman, MT but is not currently using the process, as you noted.
From my reading, that's still not quite right.
"We know the alum that we saved already is about $16,000 a year for sure. But if that wouldn't have done it, that's when an upgrade around the corner would have been, and then if we have to do an upgrade, there's where you run into the millions," Newfield says.
Using the grain definitely saved them $16,000 a year in using alum, which may not have been as effective. If the alum hadn't worked, then they would have had to make the $1million investment.