EFFECTIVENESS OF LIQUID–SOLID SEPARATION FOR TREATMENT OF FLUSHED DAIRY MANURE: A CASE STUDY

2001 ◽  
Vol 17 (3) ◽  
Author(s):  
J. P. Chastain ◽  
M. B. Vanotti ◽  
M. M. Wingfield
Keyword(s):  
Dairy Manure

scholarly journals Versatility of the MAnure PHosphorus EXtraction (MAPHEX) System in Removing Phosphorus, Odor, Microbes, and Alkalinity from Dairy Manures: A Four-Farm Case Study

2018 ◽  
Vol 34 (3) ◽  
pp. 567-572 ◽  
Author(s):  
Clinton D. Church ◽  
Alexander N. Hristov ◽  
Peter J.A. Kleinman ◽  
Sarah K. Fishel ◽  
Michael R. Reiner ◽  
...  
Keyword(s):  
Water Quality ◽  
Chemical Treatment ◽  
Organic Material ◽  
Animal Manure ◽  
Dairy Manure ◽  
Full Scale ◽  
Wide Range ◽  
Phosphorus Extraction ◽  
Over Time

Abstract. Animal manure contains nutrients [primarily nitrogen (N) and phosphorus (P)] and organic material that are beneficial to crops. Unfortunately, for economic and logistics reasons, most manure tends to be applied to soils near where it is generated. Over time P concentrations in soils where dairy manure is applied builds up, often in excess of crop demands, and its potential loss in runoff poses a risk to water quality. We previously described, and have subsequently built, a full-scale version of a MAnure PHosphorus EXtraction (MAPHEX) System capable of removing greater than 90% of the P from manures. While originally designed to remove phosphorus, we postulated that the MAPHEX System was also capable of removing odor and microbes, and of concentrating alkalinity into a solid, economically transported form. In this study the MAPHEX System was shown to be highly versatile at removing greater than 90% of the phosphorus from a wide range of dairy manures. In addition, the study showed that the System is also capable of concentrating and recovering alkalinity from manures, while also removing over 80% of microbes and reducing the odor of the effluent applied to fields by half. Keywords: Alkalinity, Chemical treatment, Manure, Microbes, Odor, Phosphorus, Treatment systems, Solid separation.

ADVANCED SOLIDS SEPARATION AND NUTRIENT RECOVERY FOR SCRAPE DAIRY MANURE: (A CASE STUDY)

2005 ◽  
Author(s):  
Bernard Benjamin Sheff ◽  
Timothy E. Fessenden ◽  
Victor B. Johnson
Keyword(s):  
Dairy Manure ◽  
Nutrient Recovery ◽  
Solids Separation

scholarly journals Case Study: On-Farm Evaluation of Liquid Dairy Manure Application Methods to Reduce Ammonia Losses

2009 ◽  
Vol 25 (1) ◽  
pp. 93-98 ◽  
Author(s):  
A.B. Leytem ◽  
D.L. Bjorneberg ◽  
R.E. Sheffield ◽  
M. E. de Haro Marti
Keyword(s):  
Dairy Manure ◽  
Manure Application ◽  
Application Methods ◽  
On Farm

The Genesis and Internal Dynamics of El Salvador's People's Revolutionary Army, 1970–1976

2014 ◽  
Vol 38 (01) ◽  
pp. 102-129
Author(s):  
ALBERTO MARTÍN ÁLVAREZ ◽  
EUDALD CORTINA ORERO
Keyword(s):  
Latin America ◽  
El Salvador ◽  
Early Years ◽  
Left Wing ◽  
Internal Dynamics ◽  
Internal Coherence ◽  
The 1960S

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.

Culture and the plasticity of perception

2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann
Keyword(s):  
Cultural Context ◽  
Sensory Experience ◽  
Cultural Learning ◽  
The World

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.

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