manure management

DairyCast 0239, Kristen Rowles explains the idea of nutrient trading

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  •  Kristen Rowles, Senior Policy Analyst for Georgia Water Planning and Policy, explains the idea of nutrient trading and how you may benefit from it

DairyCast 0237, Reducing manure output, a producer perspective and the research behind it

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  • How can you reduce the manure output of your operation? We visit with dairy producer Bob Hennen of Cental Minnesota and Bill Weiss of The Ohio State University.

2008 World Dairy Expo Education Seminar: Sorting Manure – Minimizing the Mess

2008 World Dairy Expo Education Seminar: Sorting Manure – Minimizing the Mess, by Dr. Joseph P. Harner, Professor, Kansas State University

DairyCast 0173 for July 8 2008

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  • Can adding Borax to your manure make happier neighbors? A new product may soon be available. Terry Whitehead, Research Microbiologist at ARS, tells of recent research.
  • Effectively transitioning and transporting young calves can have a major impact on health. Are there things from the beef industry we can use to help make that transition easier? 

Manure digesters face impossible task

Manure digesters in California are facing the strictest regulation yet. The San Joaquin Valley Air Pollution Control District is mandating an emissions standard of nine parts per million Nitrogen Oxides or NOx that existing digester technology has never conclusively met. NOx combines with volatile organic compounds to form ozone, and the Air District has been faced with the challenge of reducing all NOx emissions. 

New and existing digesters would have to add air pollution control technology to engine generators or face forced shutdown. “This means huge up front costs and expensive operating and maintenance costs,” says Allen Dusault with Sustainable Conservation. Digesters could still be operated and gas flared, but no electricity produced. The purpose of the digester would be defeated. 

DairyCast 0145 for March 28 2008

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  • Kylene Anderson, Sorted Semen Marketing Specialist with ABS Global, highlights the details of the semen sorting process as well as the offering available to you
  • Your reproduction synchronization protocol can determine your success rate for conception
  • Will the new California environmental laws become a precedent for other states to follow?

DairyCast 0135 for February 22 2008

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  • The Largest Beef Recall in History - what caused it?
  • A detailed look at dairy producers investment in the beef checkoff program and the proposed enhancements discussed at the Cattle Industry Annual Convention
  • How to successfully comply with the new waste discharge requirements and the impact on California dairy producers

Wastewater to Drinking Water – Is it possible?

According to Integrated Separation Solutions it just might be possible.

Integrated Separation Solutions is a Wisconsin based company. Originally in the industrial process water and food separation sector, they have recently started working with dairy producers in solving their manure management problems.

Company representative Josh Vrieze, says they like to think of their product as nutrient partitioning. Instead of just separating out the solids by screen or a screw press and removing 20 to 30% solids, their system sends the manure through four different phases. Each phase happens in a matter of minutes and removes a percentage of solids, resulting in close to 100% solid reduction.

The fourth stage involves reverse osmosis and the resulting product looks just like drinking water. According to Vrieze it’s very similar to distilled water because all of the minerals are gone, and it runs very close to meeting drinking water standards.

Although equipment is needed to do this process, potentially this application could be given a discharge permit. Then this might be a more viable option for dairies that are looking at expanding instead of digging a lagoon.

This technology has been around for years, it’s just being adapted to a new industry. Also, no chemicals are involved in the process.

As Vrieze notes, his neighbors don’t mind the cows, but they do mind the lagoons.

DairyCast 0124 for January 8 2008

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  • Dr. Rick Kohn, University of Maryland, offers some advice on improving the environmental impact of your operation as well as using milk urea nitrogen (MUN) as a management tool to reduce cost and negative effects
  • How we handle employee conflicts can make a big difference, some tips from Agriculture Management Coach, Don Tyler
  • The 2007 year in review from USDA
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