Results 101 to 110 of about 2,114 (137)

Liquid Swine Manure Phosphorus Utilization for Corn and Soybean Production

Soil Science Society of America Journal, 2009
There is uncertainty about manure P availability for crops and need for P fertilization when manure is applied. This study evaluated effects of liquid swine ( Sus scrofa domesticus ) manure and fertilizer P on early plant growth and P uptake, grain yield, and grain P removal for corn (
M. M. Barbazán, A. P. Mallarino, J. E. Sawyer   +2 more
openaire   +1 more source

Emissions of N2O and CH4 during the Composting of Liquid Swine Manure

Environmental Monitoring and Assessment, 2004
Composted organic wastes have been shown to reduce emissions of N2O and CH4, but little is known about the release of these gases during the composting process. This research examined the emissions of N2O and CH4 during the composting of liquid swine manure and wheat straw at two operations, one with forced aeration and the other without.
A G, Thompson, C, Wagner-Riddle, R, Fleming   +2 more
openaire   +2 more sources

Effect of Solid-Liquid Separation on BOD and VFA in Swine Manure

Environmental Technology, 2001
Fresh swine manure was sieved into seven different particle size categories, i.e.,
J, Zhu, P M, Ndegwa, A, Luo
openaire   +2 more sources

Effects of liquid swine manure on dissipation of 17β-estradiol in soil

Journal of Hazardous Materials, 2011
17β-estradiol (E2), a natural estrogenic hormone, degrades within hours and bind strongly to soils and sediments; however, estrogens are frequently detected in the environment at concentrations that impact water quality. Colloidal (COC) and dissolved (DOC) organic carbon may enhance the persistence and mobility of E2.
K K, Zitnick, N W, Shappell, H, Hakk, T M, DeSutter, E, Khan, F X M, Casey   +5 more
openaire   +2 more sources

SOLID-LIQUID SEPARATION OF SWINE MANURE WITH POLYMER TREATMENT AND SAND FILTRATION

Transactions of the ASAE, 2002
Small particles typical of liquid swine manure often clog sand filter beds and fine filters. We evaluated the effectiveness of polymer flocculants to improve drainage and filtration performance of sand filter beds by increasing the particle size of manure.
null M.B. Vanotti, null J.M. Rice, null A.Q. Ellison, null P.G. Hunt, null F.J. Humenik, null and C.L. Baird   +5 more
openaire   +1 more source

Fertilizer Value of Swine and Dairy Manure from an Above-Ground Liquid Manure Storage System

Applied Engineering in Agriculture, 1986
A three year study was conducted to determine the fertilizer value of liquid swine and dairy manure stored in above-ground steel structures. The magnitude of nitrogen losses from dairy manure stored in above-ground systems was determined. Randomized complete block design agronomic experiments were conducted on experimental corn plots at two swine and ...
null D. L. Welty, null A. L. Sutton, null J. C. Nye, null D. D. Jones, null D. T. Kelly   +4 more
openaire   +1 more source

HYDROGEN SULFIDE PRODUCTION FROM STORED LIQUID SWINE MANURE: A LABORATORY STUDY

Transactions of the ASAE, 2000
The production of hydrogen sulfide from stored liquid swine manure as influenced by the manure settling characteristics and the initial sulfate concentration was studied in the laboratory. The manure was settled in a 30-cm diameter ×120-cm high column for 24 h and then divided into three layers based on the solids content.
null J. Arogo, null R. H. Zhang, null G. L. Riskowski, null D. L. Day   +3 more
openaire   +1 more source

Aeration Requirement for Odor Control of Liquid Swine Manure Determined by the Manure Solids Content

2006 Portland, Oregon, July 9-12, 2006, 2006
An extensive lab study followed by a limited field-scale investigation was carried out in this study with the goal of determining the relationship between manure solids levels and aeration times and rates as well as their effect on the length of odor-free storage after the combined separation and aeration treatment. In the lab study, three levels of
null Jun Zhu, null Zhijian Zhang, null Curtis Miller   +2 more
openaire   +1 more source

A critical review on livestock manure biorefinery technologies: Sustainability, challenges, and future perspectives

Renewable and Sustainable Energy Reviews, 2021
Benyamin Khoshnevisan, Na Duan, Panagiotis Tsapekos   +2 more
exaly  

Hydrogen sulfide and dimethyl sulfide in liquid swine manure

Chemosphere, 1978
Akio Yasuhara, Keiichiro Fuwa
openaire   +1 more source