Showing results for: pig slurry Articles
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Treatment of high loaded swine slurry in an aerobic granular reactor
Aerobic granular sludge grown in a sequential batch reactor was proposed as an alternative to anaerobic processes for organic matter and nitrogen removal from swine slurry. Aerobic granulation was achieved with this wastewater after few days from start-up. On day 140 of operation, the granular properties were: 5 mm of average diameter, SVI of 32 mL (g VSS)-1 and density around 55 g VSS ...
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Rainfall-induced release of microbes from manure: model development, parameter estimation, and uncertainty evaluation on small plots
A series of simulated rainfall-runoff experiments with applications of different manure types (cattle solid pats, poultry dry litter, swine slurry) was conducted across four seasons on a field containing 36 plots (0.75 × 2 m each), resulting in 144 rainfall-runoff events. Simulating time-varying release of Escherichia coli, enterococci, and fecal coliforms from manures applied at typical ...
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Occurrence of tylosin in swine wastewater in Mexico
This study determined a tylosin concentration in swine wastewater located in a Mexican pig farm, during different stages of the pigs' growth. The detection of antibiotics in swine wastewater is complex due to its high concentration of solids. Analytical method was developed for detection of tylosin in swine wastewater and swine slurry. Average recoveries of tylosin in the liquid and ...
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Project - Lunen, Germany
Lunen Location: Lunen, Germany Output: 2.4MW Electricity Input Materials: Maize Silage, cow and pig slurry. ...
By Saaf Energy
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Cover crop effects on the fate of N following soil application of swine manure
Abstract Cereal grain cover crops increase surface cover, anchor corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] residues, increase infiltration, reduce both rill and interrill erosion, scavenge excess nutrients from the soil, and are easily obtained and inexpensive compared to other cover crop options. The use of cereal grain cover crops in fields where manure application occurs ...
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Influence of light intensity on hydrogen production by Rhodobacter sphaeroides from swine manure wastewater
In this paper, the effects of light intensity on the hydrogen production of Rhodobacter sphaeroides 1.1737 using swine manure wastewater as substrate were investigated. The results show that the increase in light intensity increases both hydrogen production rate and total hydrogen evolved by Rhodobacter sphaeroides, and the activity of Rhodobacter sphaeroides is getting stronger. The rate of ...
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Project - Taunton England
Plant’s power: 3000 kW/h Daily Feeding: whole Cereal silage, grass silage, OFMSW and pig slurry Goal: to improve the viscosity into digesters and to concentrate the DM % into digesters To see video, please click ...
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Escherichia coli transport from surface-applied manure to subsurface drains through artificial biopores
Received for publication March 3, 2009. Bacteria transport in soils primarily occurs through soil mesopores and macropores (e.g., biopores and cracks). Field research has demonstrated that biopores and subsurface drains can be hydraulically connected. This research was conducted to investigate the importance of surface connected and disconnected (buried) biopores on Escherichia coli (E. coli) ...
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Project - Brandegurg Germany
Plant’s power: 500 kW/h Daily feeding: pig slurry; corn silage; rye meal Goal: Reduce the product’s viscosity into digesters to increase the concentration of Dry Matter To see video, please click ...
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Prokaryote community dynamics in anaerobic co-digestion of swine manure, rice straw and industrial clay residuals
The aim of this study was to analyze the effect of the addition of rice straw and clay residuals on the prokaryote methane-producing community structure in a semi-continuously stirred tank reactor fed with swine manure. Molecular techniques, including terminal restriction fragment length polymorphism and a comparative nucleotide sequence analyses of the prokaryotic 16S rRNA genes, were ...
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Potential phosphorus, potassium, and magnesium surpluses in an irrigated maize monoculture fertilized with pig slurry
Pig slurry (PS) is extensively applied to irrigated maize in nitrate-vulnerable zones of the Ebro Valley, Northeast Spain. Farmers base PS rates on the European Union (EU) Nitrates Directive (up to 170 kg N ha–1 derived from organic sources) or on maize-N requirements (about 300 kg N ha–1). The aim of the study was to assess whether these PS rates would lead to P, K, and Mg surpluses in excess of ...
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In-situ comparison of phosphorus losses between organic and inorganic fertilizersPhosphorus (P) is one of the limiting factors of eutrophication. P added to soil from fertilizer application could pose a threat to water quality. According to agricultural habits, swine manure (SM), oil cake (OC), biogas slurry (BS), commercial organic fertilizer (OF) and compound fertilizer (CF) were selected to compare their P losses on a slope-land under natural rainfall. The results showed ...
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Dietary protein and cellulose effects on chemical and microbial characteristics of swine feces and stored manure
Received for publication January 24, 2008. The objectives of this study were to investigate the effects of dietary crude protein (14.5 or 12.0%) and cellulose (8.7 or 2.5%) levels on composition of feces and manure after 8 wk of diet feeding and storage. Pigs were fed twice daily; after each feeding, urine and feces were collected and added to manure storage containers. On weeks 2 and 8 after ...
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Phosphorus speciation and sorption-desorption characteristics in heavily manured soils
Managing heavily manured soils for decreased P loss to waters requires improved understanding of the chemical and sorption–desorption characteristics of P in these soils. We used soils from agricultural fields receiving 8 yr of dairy, poultry, swine manure or spent mushroom compost for the determination of P functional groups in NaOH-EDTA extracts by solution 31P nuclear magnetic resonance (NMR) ...
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Characterization of selected nutrients and bacteria from anaerobic swine manure lagoons on sow, nursery, and finisher farms in the Mid-South USA
Received for publication October 31, 2008. Swine (Sus scrofa domestica) production in the Mid-South USA comprises sow, nursery, and finisher farms. A 2007 packing plant closure started a regional shift from finisher to sow and nursery farms. Changes in manure stored in lagoons and land-applied as fertilizer were expected but were unknown because nutrient and bacterial levels had not been ...
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Sadia swine manure lagoon treatment case study
The Problem SADIA, a major integrated hog producer located in the Santa Catarina province of Brazil requested permission to conduct a test to determine the effectiveness of Nordevco Associates’ technology to improve conditions in their manure storage lagoon at a facility located in Concordia. Nordevco’s solution was applied by the producer and all testing and analyses were carried out ...
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Removal of Phosphorus from livestock effluents
Received for publication December 12, 2007. For removal of phosphorus (P) from swine liquid manure before land application, we developed a treatment process that produces low P effluents and a valuable P by-product with minimal chemical addition and ammonia losses. The new wastewater process included two sequential steps: (i) biological nitrification and (ii) increasing the pH of the nitrified ...
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A small plant with great success - case study
The farm-based biogas plant operated by the Wienken family in Augustenfeld (near Löningen) is the first plant of its size built by bwe. Originally, the farm's operator had planned to install a straw heating element. However, since the input materials are available on the farm itself in their entirety, the decision to implement a biogas plant designed by bwe was obvious. One decisive aspect ...
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Enhancing nutrient cycling by coupling cover crops with manure injection
Coupling winter small grain cover crops (CC) with liquid manure injection may increase manure nutrient capture. The objectives of this research were to quantify manure injection effects using target swine (Sus scrofa) manure N rates of 112, 224, and 336 kg N ha–1 on CC plant density, fall and spring shoot biomass, N, P, and K uptake and subsequent corn (Zea mays L.) yield. A winter rye (Secale ...
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Antibiotic resistant bacterial profiles of anaerobic swine lagoon effluent
Received for publication November 3, 2008. Although land application of swine (Sus scrofa) manure lagoon effluent is a common and effective method of disposal, the presence of antibiotic-resistant bacteria, both pathogenic and commensal can complicate already understood issues associated with its safe disposal. The aim of this study was to assess antibiotic resistance in swine lagoon bacteria ...
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