ANDIG6 – Questions

1. What are some of the barriers to incorporating ‘conventional ‘ anaerobic digestion systems on some  farm operations?

a. Scale: Anaerobic digestion is not always an economical option for small and medium scale farm operations.

b. Financing/project risk: The risks associated with financing anaerobic digestion are great for individual operators, but can be diffused through cooperative or public development of anaerobic digestion.

c. Public acceptance: Some operators of anaerobic digesters have met with public resistance. Cooperative development of community digesters can increase public acceptance.

d. All of the above.

2. Discuss three different models of cooperative development of anaerobic digestion.

 Open ended.

3. Discuss a proven way to encourage public acceptance of anaerobic digestion.

 Open ended.

4. What are some of the problems associated with landfills as a waste disposal method?

a. They are a source of fugitive emissions of greenhouse gases.

b. Landfills are increasingly charging tipping fees, which increases the cost of waste disposal for industry.

c. Manure and food waste provide nutrients; landfill represents a lost opportunity to recover nutrients for fertilizer.

d. All of the above.

5. What are some problems associated with land application as a waste disposal method?

a. There is a shortage of agricultural land on which to spread manure.

b. Land application of manure causes implements to clog up.

c. Runoff of manure from agricultural fields draining to waterways contribute to poor water quality.

d. Land application of manure represents a lost opportunity to recover nutrients for fertilizer.

6. What is the most common form of publicly owned anaerobic digesters?

a. On-farm dairy anaerobic digesters.

b. Digesters at wastewater treatment plants.

c. Digesters to treat source-separated organics from curbside recycling programs.