After adding a DVO digester our Somatic Cell Count is down. Using kiln dried shavings it was 175k–225k. With DVO digested fiber it is 125–150k! Solids are right off of separator as-is, no further composting, blowing or conditioning.
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Why DVO? It’s simple. Their system digests ALL the waste from a dairy. Nothing bypasses. The manure is thoroughly and efficiently processed, and the gas output is steady and predictable year-round. Together this means significantly more biogas ‘per cow’ is produced than with other digester designs. DVO also has an excellent track record of success. These things are good for the environment and the local community…and tend to make our investors happy too. It also helps that dairy farmers already know DVO, and they like the other benefits the DVO system offers them.
Grant Zimmerman CEO, Amp Americas – owner of North America’s two largest biogas-to-CNG sites
If you ask me about farming without a digester, we wouldn’t be very interested. We like what it does. We wanted to be able to handle a large waste stream in the most efficient, meaningful way possible.
Bill Rowell, Green Mountain Dairy, VT
Our newest DVO digester produces more biogas than our old [CSTR/tank-type] digester ever produced on a good day, by at least 25%.
Carl Ramsey, Operations Manager, Fair Oaks Prarie’s Edge Dairy, IN
During the Hong Seong Project I was impressed many times by DVO Staff’s great team work. I could see it was the result of good leadership. If we can have such a great partner for next project too, this will be a most splendid thing.
C.B. Lee, Hong Seong, South Korea (swine)
DVO’s new Phosphorus Recovery system works as advertised. We previously operated a full-scale centrifuge…but the extra amount of polymer required for the centrifuge was just not cost effective – and still did not result in the same amount of capture of phosphorus. We are achieving better results with 1/3 the operating costs when figuring for chemistry and electrical costs, not to mention maintenance. Nobody has a better manure management system for dairies.
Dan DeRuyter, George DeRuyter Dairy & Son Dairy, WA
I get asked a lot why I’m doing this when I’m getting ready to retire, and I’ve wondered that myself. But things have to continue and I’ve thought about this possibility for a long time. I didn’t know how to do what I wanted to do, but I found some folks who helped us get there. They gave me exactly what I asked for and I’m tickled with it.
William Storms, Storms Farms, NC (swine)
The digester is one of the few things we have ever purchased that has exceeded our expectations.
Ron St. John, Alliance Dairies, FL
Cenergy has found that the DVO digester technology is the most effective system for removing volatile solids and yielding long, linked fibers after solids separation (left, right). The fibers give Magic Dirt the porosity and water holding capacity that emulates peat moss.
Robert Joblin, Cenergy/www.magic-dirt.com
Manure has a lot of value. We are powering ourselves. In approximately 5 years the electrical savings will pay for the costs of the project. The savings will only continue as long as we have cows. We are the ‘ultimate recycler!’