Degradation of swine manure and a computer model for predicting the desorption rate of ammonia from an under-floor pit

Manure degradation and ammonia desorption rates from under-floor pits in swine buildings were investigated in this research. Manure degradation was experimentally determined under simulated pit operational conditions (1.8% and 3.3% initial manure TS, 20$\sp\circ$C and 30$\sp\circ$C manure temperature). The chemical components of the manure were characterized into different layers. It was found that solids and organic matter accumulated, and pH dropped in the bottom layers of manure. Ammonia generation rate within the manure varied in an inverse proportion with storage time.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Agricultural Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Zhang, Ruihong

Contributors dc:contributor

• Day, Donald L.

• Engineering, Agricultural

Statement dc:rights

• Copyright 1992 Zhang, Ruihong

Language dc:language

eng

Identifier

AAI9236637
(UMI)AAI9236637

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/20580