Jiqin Ni Purdue University

Publish Date: June 18, 2013

You may have heard it is impossible to digest swine manure. This is not true. Swine farmers can enjoy all the benefits provided by anaerobic digestion. They just have to work a little harder than other livestock producers to get them. The problem is hog farmers like to handle pig manure as a liquid. The extra water added to manure means digesters on swine farms are larger than those on other farms such as dairies. We can overcome this challenge by using specially designed digesters, scraping rather than flushing manure, or adding a high-energy co-digestion product to the waste stream.