This page has only limited features, please log in for full access.

Unclaimed
Ariel Szögi
United States Department of Agriculture, Agricultural Research Service, Coastal Plains Soil, Water, and Plant Research Center, Florence, SC 29501, USA

Basic Info

Basic Info is private.

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 13 August 2021 in Agronomy
Reads 0
Downloads 0

Although biochars made in laboratory seem to remove H2S and odorous compounds effectively, very few studies are available for commercial biochars. This study evaluated the efficacy of a commercial biochar (CBC) for removing H2S and odorous volatile organic compounds (VOCs). We found that the well-known Ergun equation may not be adequate in predicting pressure drop for properly sizing a ventilation system. The H2S breakthrough adsorption capacity of the CBC was 2.51 mg/g under humid conditions, which was much higher than that for dry conditions. The breakthrough capacity increased with the influent concentration of H2S. The efficacy of a pilot-scale biochar odor removal system (PSBORS) for removing 15 odorous VOCs was evaluated by placing it in a swine gestation stall continually treating the inside air for 21 days. All VOCs in the PSBORS effluent were below detection limit except for acetic acid. However, due to the very high odor threshold of acetic acid, its contribution to the odor would be minimal. It appeared that the CBC could be used to reduce both H2S and odorous VOCs with the potential of recycling the spent CBC for soil health improvement after using it for H2S and odor removal.

ACS Style

Kyoung S. Ro; Bryan Woodbury; Mindy Spiehs; Ariel A. Szogi; Philip J. Silva; Okhwa Hwang; SungBack Cho. Pilot-Scale H2S and Swine Odor Removal System Using Commercially Available Biochar. Agronomy 2021, 11, 1611 .

AMA Style

Kyoung S. Ro, Bryan Woodbury, Mindy Spiehs, Ariel A. Szogi, Philip J. Silva, Okhwa Hwang, SungBack Cho. Pilot-Scale H2S and Swine Odor Removal System Using Commercially Available Biochar. Agronomy. 2021; 11 (8):1611.

Chicago/Turabian Style

Kyoung S. Ro; Bryan Woodbury; Mindy Spiehs; Ariel A. Szogi; Philip J. Silva; Okhwa Hwang; SungBack Cho. 2021. "Pilot-Scale H2S and Swine Odor Removal System Using Commercially Available Biochar." Agronomy 11, no. 8: 1611.

Review
Published: 25 June 2021 in Agronomy
Reads 0
Downloads 0

The long-term application of manures in watersheds with dense animal production has increased soil phosphorus (P) concentration, exceeding plant and soil assimilative capacities. The P accumulated in soils that are heavily manured and contain excess extractable soil P concentrations is known as legacy P. Runoff and leaching can transport legacy P to ground water and surface water bodies, contributing to water quality impairment and environmental pollution, such as eutrophication. This review article analyzes and discusses current and innovative management practices for soil legacy P. Specifically, we address the use of biochar as an emerging novel technology that reduces P movement and bioavailability in legacy P soils. We illustrate that properties of biochar can be affected by pyrolysis temperature and by various activating chemical compounds and by-products. Our approach consists of engineering biochars, using an activation process on poultry litter feedstock before pyrolysis to enhance the binding or precipitation of legacy P. Finally, this review article describes previous examples of biochar activation and offers new approaches to the production of biochars with enhanced P sorption capabilities.

ACS Style

Vasile Cerven; Jeff Novak; Ariel Szögi; Kenneth Pantuck; Don Watts; Mark Johnson. The Occurrence of Legacy P Soils and Potential Mitigation Practices Using Activated Biochar. Agronomy 2021, 11, 1289 .

AMA Style

Vasile Cerven, Jeff Novak, Ariel Szögi, Kenneth Pantuck, Don Watts, Mark Johnson. The Occurrence of Legacy P Soils and Potential Mitigation Practices Using Activated Biochar. Agronomy. 2021; 11 (7):1289.

Chicago/Turabian Style

Vasile Cerven; Jeff Novak; Ariel Szögi; Kenneth Pantuck; Don Watts; Mark Johnson. 2021. "The Occurrence of Legacy P Soils and Potential Mitigation Practices Using Activated Biochar." Agronomy 11, no. 7: 1289.

Review
Published: 24 May 2021 in Sustainability
Reads 0
Downloads 0

Phosphorus (P) is essential for life and has a fundamental role in industry and the world food production system. The present work describes different technologies adopted for what is called the second-generation P recovery framework, that encompass the P obtained from residues and wastes. The second-generation P has a high potential to substitute the first-generation P comprising that originally mined from rock phosphates for agricultural production. Several physical, chemical, and biological processes are available for use in second-generation P recovery. They include both concentrating and recovery technologies: (1) chemical extraction using magnesium and calcium precipitating compounds yielding struvite, newberyite and calcium phosphates; (2) thermal treatments like combustion, hydrothermal carbonization, and pyrolysis; (3) nanofiltration and ion exchange methods; (4) electrochemical processes; and (5) biological processes such as composting, algae uptake, and phosphate accumulating microorganisms (PAOs). However, the best technology to use depends on the characteristic of the waste, the purpose of the process, the cost, and the availability of land. The exhaustion of deposits (economic problem) and the accumulation of P (environmental problem) are the main drivers to incentivize the P’s recovery from various wastes. Besides promoting the resource’s safety, the recovery of P introduces the residues as raw materials, closing the productive systems loop and reducing their environmental damage.

ACS Style

Camila Hollas; Alice Bolsan; Bruno Venturin; Gabriela Bonassa; Deisi Tápparo; Daniela Cândido; Fabiane Antes; Matias Vanotti; Ariel Szögi; Airton Kunz. Second-Generation Phosphorus: Recovery from Wastes towards the Sustainability of Production Chains. Sustainability 2021, 13, 5919 .

AMA Style

Camila Hollas, Alice Bolsan, Bruno Venturin, Gabriela Bonassa, Deisi Tápparo, Daniela Cândido, Fabiane Antes, Matias Vanotti, Ariel Szögi, Airton Kunz. Second-Generation Phosphorus: Recovery from Wastes towards the Sustainability of Production Chains. Sustainability. 2021; 13 (11):5919.

Chicago/Turabian Style

Camila Hollas; Alice Bolsan; Bruno Venturin; Gabriela Bonassa; Deisi Tápparo; Daniela Cândido; Fabiane Antes; Matias Vanotti; Ariel Szögi; Airton Kunz. 2021. "Second-Generation Phosphorus: Recovery from Wastes towards the Sustainability of Production Chains." Sustainability 13, no. 11: 5919.

Editorial
Published: 13 December 2020 in Environments
Reads 0
Downloads 0

Traditionally, livestock manure has been used to provide nutrients for plant growth and to improve soil conditions

ACS Style

Kyoung S. Ro; Ariel A. Szogi; Gilbert C. Sigua. Innovative Animal Manure Management for Environmental Protection, Improved Soil Fertility, and Crop Production. Environments 2020, 7, 110 .

AMA Style

Kyoung S. Ro, Ariel A. Szogi, Gilbert C. Sigua. Innovative Animal Manure Management for Environmental Protection, Improved Soil Fertility, and Crop Production. Environments. 2020; 7 (12):110.

Chicago/Turabian Style

Kyoung S. Ro; Ariel A. Szogi; Gilbert C. Sigua. 2020. "Innovative Animal Manure Management for Environmental Protection, Improved Soil Fertility, and Crop Production." Environments 7, no. 12: 110.

Journal article
Published: 06 November 2020 in Agronomy
Reads 0
Downloads 0

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.

ACS Style

Ariel A. Szogi; Virginia H. Takata; Paul D. Shumaker. Chemical Extraction of Phosphorus from Dairy Manure and Utilization of Recovered Manure Solids. Agronomy 2020, 10, 1725 .

AMA Style

Ariel A. Szogi, Virginia H. Takata, Paul D. Shumaker. Chemical Extraction of Phosphorus from Dairy Manure and Utilization of Recovered Manure Solids. Agronomy. 2020; 10 (11):1725.

Chicago/Turabian Style

Ariel A. Szogi; Virginia H. Takata; Paul D. Shumaker. 2020. "Chemical Extraction of Phosphorus from Dairy Manure and Utilization of Recovered Manure Solids." Agronomy 10, no. 11: 1725.

Journal article
Published: 12 October 2020 in Sustainability
Reads 0
Downloads 0

The soil nitrogen (N) availability and urease activity (UA) in a humid ecosystem with variable rainfall distribution and poor soil fertility are not well understood. A complete appreciation of N cycling in the soil–water–plant continuum is needed to better manage N and water in regions that will be strongly affected by climate change. A sorghum (Sorghum bicolor L.) study located in Florence, South Carolina, USA, was conducted using a variable-rate pivot system. We hypothesized that supplemental irrigation (SI) and N would enhance UA and N uptake while minimizing the concentration of N in porewater (TINW). The aim of the study was to assess the impact of SI (0, 50, and 100%) and N fertilization (0, 85, and 170 kg N ha−1) on: UA; total N (TNS); total inorganic N (TINS); TINW; and N uptake of sorghum. Results support our research hypothesis. The greatest UA was from 0% SI and 170 kg ha−1 (18.7 µg N g−1 ha−1). Porewater N (mg L−1), when averaged across SI and N showed a significantly lower concentration at lower soil depth (9.9 ± 0.7) than the upper depth (26.1 ± 2.4). The 100% SI had the greatest biomass N uptake (NUPB) of 67.9 ± 31.1 kg ha−1 and grain N uptake (NUG) of 52.7 ± 20.5 kg ha−1. The greatest NUPB (70.9 ± 30.3 kg ha−1) and NUG (55.3 ± 16.5 kg ha−1) was from the application of 170 kg N ha−1. Overall, results showed that proper use of water and N enhanced soil N dynamics, and improved biomass productivity and N uptake of sorghum.

ACS Style

Gilbert Sigua; Kenneth Stone; Phil Bauer; Ariel Szogi. Efficacy of Supplemental Irrigation and Nitrogen Management on Enhancing Nitrogen Availability and Urease Activity in Soils with Sorghum Production. Sustainability 2020, 12, 8358 .

AMA Style

Gilbert Sigua, Kenneth Stone, Phil Bauer, Ariel Szogi. Efficacy of Supplemental Irrigation and Nitrogen Management on Enhancing Nitrogen Availability and Urease Activity in Soils with Sorghum Production. Sustainability. 2020; 12 (20):8358.

Chicago/Turabian Style

Gilbert Sigua; Kenneth Stone; Phil Bauer; Ariel Szogi. 2020. "Efficacy of Supplemental Irrigation and Nitrogen Management on Enhancing Nitrogen Availability and Urease Activity in Soils with Sorghum Production." Sustainability 12, no. 20: 8358.

Correction
Published: 24 September 2019 in Environments
Reads 0
Downloads 0

The authors would like to correct the published article

ACS Style

Thomas F. Ducey; Diana M. C. Rashash; Ariel A. Szogi. Correction: Ducey et al. Differences in Microbial Communities and Pathogen Survival Between a Covered and Uncovered Anaerobic Lagoon. Environments, 2019, 6, 91. Environments 2019, 6, 109 .

AMA Style

Thomas F. Ducey, Diana M. C. Rashash, Ariel A. Szogi. Correction: Ducey et al. Differences in Microbial Communities and Pathogen Survival Between a Covered and Uncovered Anaerobic Lagoon. Environments, 2019, 6, 91. Environments. 2019; 6 (10):109.

Chicago/Turabian Style

Thomas F. Ducey; Diana M. C. Rashash; Ariel A. Szogi. 2019. "Correction: Ducey et al. Differences in Microbial Communities and Pathogen Survival Between a Covered and Uncovered Anaerobic Lagoon. Environments, 2019, 6, 91." Environments 6, no. 10: 109.

Journal article
Published: 14 August 2019 in Environments
Reads 0
Downloads 0

Low-phosphorus (P) litter, a manure treatment byproduct, can be used as an organic soil amendment and nitrogen (N) source but its effect on N mineralization is unknown. A laboratory incubation study was conducted to compare the effect of adding untreated (fine or pelletized) broiler litter (FUL or PUL) versus extracted, low-P treated (fine or pelletized) broiler litter (FLP or PLP) on N dynamics in a sandy soil. All four litter materials were surface applied at 157 kg N ha−1. The soil accumulation of ammonium (NH4+) and nitrate (NO3−) were used to estimate available mineralized N. The evolution of carbon dioxide (CO2), ammonia (NH3), and nitrous oxide (N2O) was used to evaluate gaseous losses during soil incubation. Untreated litter materials provided high levels of mineralized N, 71% of the total N applied for FUL and 64% for PUL, while NH3 losses were 24% to 35% and N2O losses were 3.3% to 7.4% of the total applied N, respectively. Soil application of low-P treated litter provided lower levels of mineralized N, 42% for FLP and 29% for PLP of the total applied N with NH3 losses of 5.7% for FLP for and 4.1% for PLP, and very low N2O losses (0.5%). Differences in mineralized N between untreated and treated broiler litter materials were attributed to contrasting C:N ratios and acidity of the low-P litter byproducts. Soil application of treated low-P litter appears as an option for slow mineral N release and abatement of NH3 and N2O soil losses.

ACS Style

Ariel A. Szogi; Paul D. Shumaker; Kyoung S. Ro; Gilbert C. Sigua. Nitrogen Mineralization in a Sandy Soil Amended with Treated Low-Phosphorus Broiler Litter. Environments 2019, 6, 96 .

AMA Style

Ariel A. Szogi, Paul D. Shumaker, Kyoung S. Ro, Gilbert C. Sigua. Nitrogen Mineralization in a Sandy Soil Amended with Treated Low-Phosphorus Broiler Litter. Environments. 2019; 6 (8):96.

Chicago/Turabian Style

Ariel A. Szogi; Paul D. Shumaker; Kyoung S. Ro; Gilbert C. Sigua. 2019. "Nitrogen Mineralization in a Sandy Soil Amended with Treated Low-Phosphorus Broiler Litter." Environments 6, no. 8: 96.

Journal article
Published: 06 August 2019 in Environments
Reads 0
Downloads 0

Anaerobic lagoons are a critical component of confined swine feeding operations. These structures can be modified, using a synthetic cover, to enhance their ability to capture the emission of ammonia and other malodorous compounds. Very little has been done to assess the potential of these covers to alter lagoon biological properties. Alterations in the physicochemical makeup can impact the biological properties, most notably, the pathogenic populations. To this aim, we performed a seasonal study of two commercial swine operations, one with a conventional open lagoon, the other which employed a permeable, synthetic cover. Results indicated that lagoon fecal coliforms, and Escherichia coli were significantly influenced by sampling location (lagoon vs house) and lagoon type (open vs. covered), while Enterococcus sp. were influenced by sampling location only. Comparisons against environmental variables revealed that fecal coliforms (r2 = 0.40), E. coli (r2 = 0.58), and Enterococcus sp. (r2 = 0.25) significantly responded to changes in pH. Deep 16S sequencing of lagoon and house bacterial and archaeal communities demonstrated grouping by both sampling location and lagoon type, with several environmental variables correlating to microbial community differences. Overall, these results demonstrate that permeable synthetic covers play a role in changing the lagoon microclimate, impacting lagoon physicochemical and biological properties.

ACS Style

Thomas F. Ducey; Diana M. C. Rashash; Ariel A. Szogi. Differences in Microbial Communities and Pathogen Survival Between a Covered and Uncovered Anaerobic Lagoon. Environments 2019, 6, 91 .

AMA Style

Thomas F. Ducey, Diana M. C. Rashash, Ariel A. Szogi. Differences in Microbial Communities and Pathogen Survival Between a Covered and Uncovered Anaerobic Lagoon. Environments. 2019; 6 (8):91.

Chicago/Turabian Style

Thomas F. Ducey; Diana M. C. Rashash; Ariel A. Szogi. 2019. "Differences in Microbial Communities and Pathogen Survival Between a Covered and Uncovered Anaerobic Lagoon." Environments 6, no. 8: 91.

Journal article
Published: 01 May 2019 in Environments
Reads 0
Downloads 0

Ash from power plants that incinerate poultry litter has fertilizer value, but research is lacking on optimal land application methodologies. Experiments were conducted to evaluate calcitic lime and flue gas desulfurization gypsum (FGDG) as potential fillers for poultry litter ash land applications. The ash had phosphorus (P) and potassium (K) contents of 68 and 59 g kg−1, respectively. Soil extractable P and K were measured in an incubation pot study, comparing calcitic lime to FGDG at filler/ash ratios of 1:3, 1:2, 1:1, 2:1, and 3:1. After one month, soils were sampled and annual ryegrass (Lolium multiflorum Lam.) seeds were planted to investigate how plant growth and uptake of P and K were influenced by the fillers. Application of ash alone or with fillers increased soil extractable P and K levels above unamended controls by 100% and 70%, respectively. Filler materials did not affect biomass or P and K concentration of the ryegrass. A field study with a commercial spinner disc fertilizer applicator was conducted to compare application uniformity of ash alone and filler/ash blends. Overall, test data suggested that uniform distribution of ash alone or with fillers is feasible in field applications using a commercial fertilizer spreader.

ACS Style

Philip J. Bauer; Ariel A. Szogi; Paul D. Shumaker. Fertilizer Efficacy of Poultry Litter Ash Blended with Lime or Gypsum as Fillers. Environments 2019, 6, 50 .

AMA Style

Philip J. Bauer, Ariel A. Szogi, Paul D. Shumaker. Fertilizer Efficacy of Poultry Litter Ash Blended with Lime or Gypsum as Fillers. Environments. 2019; 6 (5):50.

Chicago/Turabian Style

Philip J. Bauer; Ariel A. Szogi; Paul D. Shumaker. 2019. "Fertilizer Efficacy of Poultry Litter Ash Blended with Lime or Gypsum as Fillers." Environments 6, no. 5: 50.

Original research article
Published: 11 July 2018 in Frontiers in Sustainable Food Systems
Reads 0
Downloads 0

To maintain the waste treatment capacity of anaerobic swine lagoons, excessive accumulation of sludge in the bottom of the lagoon is traditionally removed by dredging and pumping followed by dewatering prior to land application. A widespread and low-cost method of dewatering this lagoon sludge in U.S. farms is the use of geotextile bag filtration. Because of typically high phosphorus (P) contents in lagoon sludge, the dewatered sludge is eventually hauled to distant fields to reduce the environmental risk of excess P in land nearby the lagoon. The inclusion of a P recovery approach, called Quick Wash (QW), along with the geotextile bag technology could eliminate or reduce hauling costs of dewatered sludge and produce a valuable P product for use as fertilizer. The QW process uses a novel combination of acid, base, and organic polyelectrolytes to selectively extract and recover P from manure solids. The objective of this study was to evaluate the potential advantage and technical feasibility of combining the QW process and geotextile dewatering in a system to extract and recover P from lagoon sludge. Laboratory tests results showed that the amount of recoverable P from lagoon sludge depends on the pH level obtained by acidification. The highest release of P in solution, 83% of total initial P, was obtained when the lagoon sludge was acidified to pH 3. The amount of P recovered as a precipitate with lime addition at pH 10 was about 79% of the initial total P in the sludge. A mass flow balance confirmed that about 20% of the total P remained in the dewatered sludge solids. The effluent contained extremely low soluble P concentrations. The calcium phosphate product was identified as amorphous calcium phosphate (ACP) with very low heavy metal content. The recovered ACP had P grades (33.2–35.5% P2O5), higher than rock phosphate, with the advantage that there is no need for additional chemical processing for its use as fertilizer. Results of this study support the technical feasibility of using the QW process in combination with geotextile bag filtration for the economic recovery of P from anaerobic swine lagoons.

ACS Style

Ariel A. Szogi; Matias B. Vanotti; Paul D. Shumaker. Economic Recovery of Calcium Phosphates From Swine Lagoon Sludge Using Quick Wash Process and Geotextile Filtration. Frontiers in Sustainable Food Systems 2018, 2, 1 .

AMA Style

Ariel A. Szogi, Matias B. Vanotti, Paul D. Shumaker. Economic Recovery of Calcium Phosphates From Swine Lagoon Sludge Using Quick Wash Process and Geotextile Filtration. Frontiers in Sustainable Food Systems. 2018; 2 ():1.

Chicago/Turabian Style

Ariel A. Szogi; Matias B. Vanotti; Paul D. Shumaker. 2018. "Economic Recovery of Calcium Phosphates From Swine Lagoon Sludge Using Quick Wash Process and Geotextile Filtration." Frontiers in Sustainable Food Systems 2, no. : 1.

Journal article
Published: 14 August 2017 in Environmental Technology
Reads 0
Downloads 0

Large volumes of wastewater from confined pig production are stored in anaerobic lagoons. Control methods are needed to reduce air pollution by foul odors released from these lagoons. In a pilot-scale experiment, we evaluated the effect of pig wastewater pre-treatment on reducing the concentration of selected malodor compounds in lagoons receiving liquid from: (1) flocculant enhanced solid-liquid separation (SS), and (2) solid-liquid separation plus biological N treatment using nitrification-denitrification (SS+NDN). A conventional anaerobic lagoon was included as a control. Concentrations of five selected malodorous compounds (phenol, p-cresol, 4-ethylphenol, indole, and skatole) and water quality parameters (ammonia-nitrogen and chemical oxygen demand) were determined in lagoon effluents. The SS+NDN pretreatment was more efficient than the SS in reducing odorous compounds in the lagoon liquid. The SS+NDN reduced by about 99% the liquid concentrations of all selected compounds. An odor panel test revealed that SS was ineffective to reduce the human sense of malodor with respect to the control. Whereas the SS+NDN had the significant lowest odor intensity and unpleasantness. These results are supported by the strong correlations found between the sum of odorous compound concentration with odor panel results and concentrations of both ammonium-nitrogen and chemical oxygen demand in lagoon liquid samples.

ACS Style

Ariel A. Szogi; John H. Loughrin; Matias B. Vanotti. Improved water quality and reduction of odorous compounds in anaerobic lagoon columns receiving pre-treated pig wastewater. Environmental Technology 2017, 39, 2613 -2621.

AMA Style

Ariel A. Szogi, John H. Loughrin, Matias B. Vanotti. Improved water quality and reduction of odorous compounds in anaerobic lagoon columns receiving pre-treated pig wastewater. Environmental Technology. 2017; 39 (20):2613-2621.

Chicago/Turabian Style

Ariel A. Szogi; John H. Loughrin; Matias B. Vanotti. 2017. "Improved water quality and reduction of odorous compounds in anaerobic lagoon columns receiving pre-treated pig wastewater." Environmental Technology 39, no. 20: 2613-2621.

Journal article
Published: 01 May 2017 in Agricultural Water Management
Reads 0
Downloads 0
ACS Style

G.C. Sigua; K.C. Stone; P.J. Bauer; A.A. Szogi; P.D. Shumaker. Impacts of irrigation scheduling on pore water nitrate and phosphate in coastal plain region of the United States. Agricultural Water Management 2017, 186, 75 -85.

AMA Style

G.C. Sigua, K.C. Stone, P.J. Bauer, A.A. Szogi, P.D. Shumaker. Impacts of irrigation scheduling on pore water nitrate and phosphate in coastal plain region of the United States. Agricultural Water Management. 2017; 186 ():75-85.

Chicago/Turabian Style

G.C. Sigua; K.C. Stone; P.J. Bauer; A.A. Szogi; P.D. Shumaker. 2017. "Impacts of irrigation scheduling on pore water nitrate and phosphate in coastal plain region of the United States." Agricultural Water Management 186, no. : 75-85.

Agricultural engineering
Published: 01 October 2016 in Scientia Agricola
Reads 0
Downloads 0

Land application of both anaerobic lagoon liquid and sludge can increase nutrient accumulation beyond the soil’s assimilative capacity and become a threat to water quality in regions with intensive, confined swine production. In a 15-month meso-scale column study, we evaluated the effect of manure pretreatment on the reduction of total suspended solids (TSS), total phosphorus (TP), soluble reactive P (SRP), and total copper (Cu) and zinc (Zn) in swine lagoons using (i) enhanced solid-liquid separation (SS) and (ii) solid-liquid separation plus biological nitrogen treatment with nitrification-denitrification (SS + NDN). A conventional anaerobic lagoon treatment was included as a control. A mass flow balance revealed that with both pretreatments the net mass input of TP, Cu, and Zn in the lagoon columns declined 80 to 100 % when compared to the control. Even though both pretreatments significantly reduced P in the inflow, TP and SRP were negatively correlated (r = -0.51 to -0.87) with TSS in the liquid fraction because of the dissolution of P from sludge into the overlying lagoon liquid. On the other hand, the removal of solids by both pretreatments effectively reduced Cu and Zn concentrations in the lagoon liquid, and their concentrations were positively correlated (r = 0.79 to 0.90) with TSS. The decline in mass accumulation of TP, Cu, and Zn in sludge as a result of the reduction of input solids can help minimize both the frequency of sludge removal for lagoon maintenance and the land area for its disposal.

ACS Style

Ariel A. Szögi; Matias Vanotti. Decline of phosphorus, copper, and zinc in anaerobic swine lagoon columns receiving pretreated influent. Scientia Agricola 2016, 73, 417 -423.

AMA Style

Ariel A. Szögi, Matias Vanotti. Decline of phosphorus, copper, and zinc in anaerobic swine lagoon columns receiving pretreated influent. Scientia Agricola. 2016; 73 (5):417-423.

Chicago/Turabian Style

Ariel A. Szögi; Matias Vanotti. 2016. "Decline of phosphorus, copper, and zinc in anaerobic swine lagoon columns receiving pretreated influent." Scientia Agricola 73, no. 5: 417-423.

Journal article
Published: 01 January 2016 in Chemosphere
Reads 0
Downloads 0

In the face of the rising level of manure production from concentrated animal feeding operations (CAFOs), management options are being sought that can provide nutrient recycling for plant growth and improved soil conditions with minimal environmental impacts. Alternatives to direct manure application are composting and thermochemical conversion which can destroy pathogens and improve handling and storage. The effect of four forms of swine manure-based soil amendments (raw, compost, hydrochar, and pyrochar) on soil fertility and leachate water quality characteristics of a sandy soil were investigated in soil incubation experiments. All four amendments significantly increased soil carbon, cation exchange capacity and available nutrient contents of the soil. However, hydrochar amended soil leached lower amounts of N, P, and K compared to the other amendments including the control. On the other hand, pyrochar amended soil leached higher concentrations of P and K. Subsequent tests on the hydrochar for K and N adsorption isotherms and surface analysis via XPS suggested that these nutrients were not sorbed directly to the hydrochar surface. Although it is still not clear how these nutrients were retained in the soil amended with hydrochar, it suggests a great potential for hydrochar as an alternative manure management option as the hydrochar can be soil applied while minimizing potential environmental issues from the leaching of high nutrient concentrations to water bodies.

ACS Style

K.S. Ro; J.M. Novak; M.G. Johnson; A.A. Szogi; J.A. Libra; K.A. Spokas; S. Bae. Leachate water quality of soils amended with different swine manure-based amendments. Chemosphere 2016, 142, 92 -99.

AMA Style

K.S. Ro, J.M. Novak, M.G. Johnson, A.A. Szogi, J.A. Libra, K.A. Spokas, S. Bae. Leachate water quality of soils amended with different swine manure-based amendments. Chemosphere. 2016; 142 ():92-99.

Chicago/Turabian Style

K.S. Ro; J.M. Novak; M.G. Johnson; A.A. Szogi; J.A. Libra; K.A. Spokas; S. Bae. 2016. "Leachate water quality of soils amended with different swine manure-based amendments." Chemosphere 142, no. : 92-99.

Journal article
Published: 01 July 2015 in Journal of Environmental Management
Reads 0
Downloads 0

Land disposal of pig manure is an environmental concern due to an imbalance of the nitrogen to phosphorus (N:P) ratio for crop production, leading to excess phosphorus (P) in soils and potential risks of water pollution. A process called "quick wash" was investigated for its feasibility to extract and recover P from pig manure solids. This process consists of selective dissolution of P from solid manure into a liquid extract using mineral or organic acid solutions, and recovery of P from the liquid extract by adding lime and an organic polymer to form a P precipitate. Laboratory tests confirmed the quick wash process selectively removed and recovered up to 90% of the total (TP) from fresh pig manure solids while leaving significant amounts of nitrogen (N) in the washed manure residue. As a result of manure P extraction, the washed solid residue became environmentally safer for land application with a more balanced N:P ratio for crop production. The recovered P can be recycled and used as fertilizer for crop production while minimizing manure P losses into the environment.

ACS Style

Ariel A. Szögi; Matias Vanotti; Patrick G. Hunt. Phosphorus recovery from pig manure solids prior to land application. Journal of Environmental Management 2015, 157, 1 -7.

AMA Style

Ariel A. Szögi, Matias Vanotti, Patrick G. Hunt. Phosphorus recovery from pig manure solids prior to land application. Journal of Environmental Management. 2015; 157 ():1-7.

Chicago/Turabian Style

Ariel A. Szögi; Matias Vanotti; Patrick G. Hunt. 2015. "Phosphorus recovery from pig manure solids prior to land application." Journal of Environmental Management 157, no. : 1-7.

Journal article
Published: 26 March 2015 in Current Pollution Reports
Reads 0
Downloads 0

For centuries, animal manures have been a traditional source of nutrients in agriculture. However, disposal of animal manure has become an environmental problem in recent times as a result of increased concentration of animal production within small geographic areas. Manure nitrogen (N) and phosphorus (P) applied in excess of the assimilative soil capacity have the potential to reach and pollute water resources through soil leaching or runoff. Yet, conservation and recovery of N and P is a concern in modern agriculture because of the high cost and future limited supply of commercial fertilizers, particularly P which is extracted from mineral deposits. Therefore, N and P recovery methods are necessary to reduce their excess prior to manure soil application and recover them as valuable products. This article is a review of existing technologies for animal waste treatment and additional new methods for recycling manure N and P and possible recovery as valuable byproducts.

ACS Style

Ariel A. Szogi; Matias Vanotti; Kyoung Ro. Methods for Treatment of Animal Manures to Reduce Nutrient Pollution Prior to Soil Application. Current Pollution Reports 2015, 1, 47 -56.

AMA Style

Ariel A. Szogi, Matias Vanotti, Kyoung Ro. Methods for Treatment of Animal Manures to Reduce Nutrient Pollution Prior to Soil Application. Current Pollution Reports. 2015; 1 (1):47-56.

Chicago/Turabian Style

Ariel A. Szogi; Matias Vanotti; Kyoung Ro. 2015. "Methods for Treatment of Animal Manures to Reduce Nutrient Pollution Prior to Soil Application." Current Pollution Reports 1, no. 1: 47-56.

Comparative study
Published: 01 May 2014 in Chemosphere
Reads 0
Downloads 0

Biochar produced during pyrolysis has the potential to enhance soil fertility and reduce greenhouse gas emissions. The influence of biochar properties (e.g., particle size) on both short- and long-term carbon (C) mineralization of biochar remains unclear. There is minimal information on the potential effects of biochar particle sizes on their breakdowns by soil microorganism, so it is unknown if the particle size of biochar influences C mineralization rate and/or stability in soils. In order to evaluate the effect of different sources (BS) and particle sizes (BF) of biochar on C loss and/or stability in soils, an incubation study on C mineralization of different biochar sources and particle sizes was established using two soils (ST): Norfolk soil (fine loamy, kaolinitic, thermic, typic Kandiudults) and Coxville soil (fine loamy kaolinitic, thermic, Paleaquults). In separate incubation vessels, these soils were amended with one of two manure-based biochars (poultry litters, PL; swine solids, SS) or one of two lignocellulosic-based biochars (switchgrass, SG; pine chips, PC) which were processed into two particle sizes (dust, 2 mm). The amount of CO2 evolved varied significantly between soils (p≤0.0001); particle sizes (p≤0.0001) and the interactions of biochar source (p≤0.001) and forms of biochars (p≤0.0001) with soil types. Averaged across soils and sources of biochar, CO2-C evolved from dust-sized biochar (281 mg kg(-1)) was significantly higher than pellet-sized biochar (226 mg kg(-1)). Coxville soils with SS biochar produced the greatest average CO2-C of 428 mg kg(-1) and Norfolk soils with PC had the lowest CO2-C production (93 mg kg(-1)). Measured rates of carbon mineralization also varied with soils and sources of biochar (Norfolk: PL>SS>SG≥PC; Coxville: PC>SG>SS>PL). The average net CO2-C evolved from the Coxville soils (385 mg kg(-1)) was about threefold more than the CO2-C evolved from the Norfolk soils (123 mg kg(-1)). Our results suggest different particle sizes and sources of biochar as well as soil type influence biochar stability.

ACS Style

G.C. Sigua; J.M. Novak; D.W. Watts; K.B. Cantrell; P.D. Shumaker; A.A. Szögi; M.G. Johnson. Carbon mineralization in two ultisols amended with different sources and particle sizes of pyrolyzed biochar. Chemosphere 2014, 103, 313 -321.

AMA Style

G.C. Sigua, J.M. Novak, D.W. Watts, K.B. Cantrell, P.D. Shumaker, A.A. Szögi, M.G. Johnson. Carbon mineralization in two ultisols amended with different sources and particle sizes of pyrolyzed biochar. Chemosphere. 2014; 103 ():313-321.

Chicago/Turabian Style

G.C. Sigua; J.M. Novak; D.W. Watts; K.B. Cantrell; P.D. Shumaker; A.A. Szögi; M.G. Johnson. 2014. "Carbon mineralization in two ultisols amended with different sources and particle sizes of pyrolyzed biochar." Chemosphere 103, no. : 313-321.

Journal article
Published: 06 April 2013 in Waste Management
Reads 0
Downloads 0

The use of flat gas-permeable membranes was investigated as components of a new process to capture and recover ammonia (NH3) in poultry houses. This process includes the passage of gaseous NH3 through a microporous hydrophobic membrane, capture with a circulating dilute acid on the other side of the membrane, and production of a concentrated ammonium (NH4) salt. Bench- and pilot-scale prototype systems using flat expanded polytetrafluoroethylene (ePTFE) membranes and a sulfuric acid solution consistently reduced headspace NH3 concentrations from 70% to 97% and recovered 88% to 100% of the NH3 volatilized from poultry litter. The potential benefits of this technology include cleaner air inside poultry houses, reduced ventilation costs, and a concentrated liquid ammonium salt that can be used as a plant nutrient solution.

ACS Style

M.J. Rothrock; A.A. Szögi; Matias Vanotti. Recovery of ammonia from poultry litter using flat gas permeable membranes. Waste Management 2013, 33, 1531 -1538.

AMA Style

M.J. Rothrock, A.A. Szögi, Matias Vanotti. Recovery of ammonia from poultry litter using flat gas permeable membranes. Waste Management. 2013; 33 (6):1531-1538.

Chicago/Turabian Style

M.J. Rothrock; A.A. Szögi; Matias Vanotti. 2013. "Recovery of ammonia from poultry litter using flat gas permeable membranes." Waste Management 33, no. 6: 1531-1538.

Text
Published: 01 July 2012 in Journal of Renewable and Sustainable Energy
Reads 0
Downloads 0

In the southeastern USA, livestock operations face issues with both manure management and energy. Both issues can be advanced by implementing holistic solutions to manure treatment that involve (1) resourceful energy management and (2) green farming systems. In such systems, current and emerging waste-to-energy conversion platforms can contribute to renewable energy solutions, improved crop yields, and sustained natural resources. System-component technologies can manage both wet and dry manures to provide recycled nutrients to crops while minimizing air and water quality impacts. Relative to energy,anaerobic digestion (AD) is the prevalent biochemical platform. It is a mature technology that readily processes wet manure, and it is used on many levels of sophistication throughout the globe. Thermochemical conversion (TCC) processes with smaller physical footprints are versatile, capable of handling wet and dry feedstocks to yield multiple byproducts. They need (1) manure feedstock conditioning to lessen the effects of salts, metals, and sulfur and (2) heat recovery for energy conservation. Additionally, with appropriate downstream processing, the TCC gases and bio-oils can aid in farm energy management to include liquid fuel. The TCC processes also produce a reasonably transportable, nutrient-dense biochar. While AD provides a digestate suitable for land application, wastewaters within these systems can also be treated at different stages with solids-separation and nitrogen-phosphorous recovery technologies. This cleaner effluent offers more options for its use in meeting crop water needs via irrigation. Thus, through holistic thinking coupled with dynamic agribusiness, there are significant opportunities for future livestock farming systems to improve the sustainability of natural resources including energy.

ACS Style

K. B. Cantrell; K. S. Ro; M. B. Vanotti; M. C. Smith; P. G. Hunt; A. A. Szögi. Green farming systems for the Southeast USA using manure-to-energy conversion platforms. Journal of Renewable and Sustainable Energy 2012, 4, 041401 .

AMA Style

K. B. Cantrell, K. S. Ro, M. B. Vanotti, M. C. Smith, P. G. Hunt, A. A. Szögi. Green farming systems for the Southeast USA using manure-to-energy conversion platforms. Journal of Renewable and Sustainable Energy. 2012; 4 (4):041401.

Chicago/Turabian Style

K. B. Cantrell; K. S. Ro; M. B. Vanotti; M. C. Smith; P. G. Hunt; A. A. Szögi. 2012. "Green farming systems for the Southeast USA using manure-to-energy conversion platforms." Journal of Renewable and Sustainable Energy 4, no. 4: 041401.