Title: Soil application of various biochars produced from both dry and wet pyrolysis Authors
|Berge, N. -|
Submitted to: American Chemical Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: October 25, 2013
Publication Date: N/A
Technical Abstract: The objectives of this study were to 1) compare physico-chemical and thermal characteristics of swine manure-based hyrdochar and pyrochar, and 2) investigate greenhouse gas emission and groundwater pollution potentials of the swine hydrochar when used as a soil amendment. Dewatered swine solids were obtained from a 5,600-head finishing swine operation in Sampson County, North Carolina, which were further dried and stored in a refrigerator until experiments. Swine pyrochar was prepared using a skid-mounted pyrolysis system which heated the dried swine solids to 620 degree Celsius for two hours. Swine hydrochar was prepared by hydrothermally carbonizing the swine solids at 250 degree Celsius for 20 hours. These biochars were applied to soil at a rate of 20 grams per kilogram. The results of greenhouse gas emission and groundwater pollution potentials of the soils amended with these biochar amendment will be presented at the meeting.