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

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

Thermophilic anaerobic digester with ultrafilter for solids stabilization

2005 ◽  
Vol 52 (1-2) ◽  
pp. 525-530 ◽  
Author(s):  
D.H. Zitomer ◽  
T.C. Bachman ◽  
D.S. Vogel
Keyword(s):  
Phosphoric Acid ◽  
Fecal Coliform ◽  
Cross Flow ◽  
Dairy Manure ◽  
Anaerobic Digester ◽  
Sintered Titanium ◽  
Pathogen Removal ◽  
Biomass Retention ◽  
Solids Separation ◽  
Sand Bedding

A thermophilic anaerobic digester with ultrafilter (TADU) for solids separation offers potential advantages of higher VS destruction, biomass retention, and pathogen removal. However, potential disadvantages include ultrafilter fouling, decreasing flux, and high VFA concentrations. In this study, a thermophilic anaerobic digester coupled to a sintered titanium, cross-flow ultrafilter was operated for over five months. Dairy manure was digested (HRT of 23 days). The filtrate VFA concentration was low (220 mg/L as HAc), average VS destruction was 49%, and a low average effluent fecal coliform concentration of 102 MPN/100 mL was observed. The low coliform value may be beneficial if dewatered biosolids are used for livestock bedding since low pathogen counts help prevent mastitis. Ultrafilter fluxes of 40–80 L/m2-hr were maintained by cleaning using caustic (3.5% NaOH) followed by water and acid (3% phosphoric acid). Sand from livestock bedding was found to damage the pump and ultrafilter. If TADU were implemented at full scale, then replacing sand bedding with dewatered biosolids should be considered.

scholarly journals Chemical Extraction of Phosphorus from Dairy Manure and Utilization of Recovered Manure Solids

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1725
Author(s):  
Ariel A. Szogi ◽  
Virginia H. Takata ◽  
Paul D. Shumaker
Keyword(s):  
Soil Phosphorus ◽  
Surface Water Quality ◽  
N:P Ratio ◽  
Organic Soil ◽  
Land Application ◽  
Dairy Manure ◽  
Chemical Extraction ◽  
Soil P ◽  
Solids Separation ◽  
Bedding Materials

Repeated land application of dairy manure can increase soil phosphorus above crop requirements because of manure’s low nitrogen (N) to phosphorus (P) ratio (N:P < 4:1). This soil P build-up can lead to off-site P transport and impairment of surface water quality. We evaluated a treatment process to extract P from manures, called Quick Wash, integrated with a double-stage solids separation system to recover coarse and fine manure solids. The Quick Wash process uses a combination of acid, base, and organic polymers to extract and recover P from manures, improving the N:P ratio of recovered manure solids (RMS). Results showed that coarse RMS could have use as bedding materials for dairy cows, and the fine acidified RMS with N:P > 10:1 can be used as a low-P organic soil amendment. A soil incubation test showed that acidified RMS stimulated N mineralization and nitrification having higher nitrate levels than untreated dairy slurry when incorporated into soil. Our results suggest that the inclusion of Quick Wash in a dairy manure management system can improve manure’s value, lowering costs of bedding material and manure hauling, and recover P for use as fertilizer while reducing the environmental impact of land spreading manure P.

Effects of Anaerobic Digestion and Solids Separation on Ammonia Emissions from Stored and Land Applied Dairy Manure

2015 ◽  
Vol 226 (9) ◽  
Author(s):  
G. M. Neerackal ◽  
P. M. Ndegwa ◽  
H. S. Joo ◽  
X. Wang ◽  
J. H. Harrison ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Manure ◽  
Ammonia Emissions ◽  
Solids Separation

Nutrient recovery and crop yield enhancement in irrigation with reclaimed wastewater: a case study

2016 ◽  
Vol 14 (3) ◽  
pp. 325-330 ◽  
Author(s):  
Pompilio Vergine ◽  
Antonio Lonigro ◽  
Carlo Salerno ◽  
Pietro Rubino ◽  
Giovanni Berardi ◽  
...  
Keyword(s):  
Crop Yield ◽  
Yield Enhancement ◽  
Nutrient Recovery ◽  
Reclaimed Wastewater

Impacts of Anaerobic Digestion and Solids Separation on Ammonia Emissions from Stored Dairy Manure

2013 ◽  
Author(s):  
George Mathew Neerackal ◽  
Hung-Soo Joo ◽  
Xiang Wang ◽  
Pius Mwangi Ndegwa ◽  
Joseph H Harrison ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Dairy Manure ◽  
Ammonia Emissions ◽  
Solids Separation

The effect of solids-separation pretreatment on biogas production from dairy manure

1983 ◽  
Vol 8 (3) ◽  
pp. 155-165 ◽  
Author(s):  
K.V. Lo ◽  
N.R. Bulley ◽  
P.H. Liao ◽  
A.J. Whitehead
Keyword(s):  
Biogas Production ◽  
Dairy Manure ◽  
Solids Separation
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