Chemical phosphorus removal: a clean strategy for piggery wastewater management in Brazil

Fernandes, Gabriela Wendler; Kunz, Airton; Steinmetz, R. L. R.; Szögi, Ariel A.; Vanotti, Matías B.; Flores, Érico M.M.; Dressler, Valderi L.

doi:10.1080/09593330.2011.642896

Cited by 41 publications

(23 citation statements)

References 24 publications

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“…It is important to determine the pH value to remove pathogens from the wastewater as well. Fernandes et al (2012) observed that a pH above 8.5 can remove more than 96 % of the soluble phosphorus; thus, this treatment allows for the phosphorus to be used as a renewable fertilizer.…”

Section: Introductionmentioning

confidence: 98%

Pathogen Inactivation and the Chemical Removal of Phosphorus from Swine Wastewater

Viancelli

Kunz

Fongaro

et al. 2015

Water Air Soil Pollut

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Inactivation of pathogens present in animal manure prior to land application has justified the use of advanced technologies. However, some alternatives are expensive or not effective due to the organic material and suspended solids present in the effluent (e.g., ozone, UV light). The use of hydrated lime (calcium hydroxide, Ca(OH) 2 ) is an attractive wastewater treatment option due to the ability of lime to kill pathogens and to extract phosphorus from manure at an alkaline pH. The present study aimed to evaluate the soluble phosphorus removal and pathogen inactivation (Escherichia coli, Salmonella enterica serovar typhymurium and Porcine circovirus type 2), in the liquid fraction and in the solid generated after Ca(OH) 2 addition in swine wastewater, exposed for 3 and 24 h at different pH conditions: 9.0, 9.5, and 10.0. The results showed the efficiency of pH elevation with Ca(OH) 2 in the removal of soluble P at pH 9.0 and the total inactivation of E. coli, Salmonella, and P. circovirus type 2 at pH 10.0. The liquid fraction (reuse water) could be safely used for cleaning the swine production facilities, and the solid fraction (precipitated P) could be used as a secondary product and fertilizer.

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Section: Introductionmentioning

confidence: 98%

Pathogen Inactivation and the Chemical Removal of Phosphorus from Swine Wastewater

Viancelli

Kunz

Fongaro

et al. 2015

Water Air Soil Pollut

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“…Not only struvite but other minerals coprecipitate as well (Lind et al 2000;Van Rensburg et al 2003;Ekama et al 2006;Ganrot et al 2007;De Graaff 2010;Wu and Zhou 2012). Examples from literature on animal slurries refer often to laboratory experiments (Szogi and Vanotti 2009;Shen et al 2012;Wahal et al 2011;Wendler Fernandes et al 2012;Shepherd, Burns, et al 2009b). Westerman et al (2010) present encouraging results on struvite formation in digestate from swine slurry with a continuous flow bed crystallizer (65% P recovery at a cost of $0.0146/kg of live weight pig slaughter).…”

Section: Introductionmentioning

confidence: 99%

Chemical phosphorus recovery from animal manure and digestate : Laboratory and pilot experiments

Schoumans

Ehlert

Regelink

et al. 2017

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Chemical phosphorus recovery from animal manure and digestate; Laboratory and pilot experiments.Wageningen, Wageningen Environmental Research, Report 2849. 114 pp.; 43 fig.; 37 tab.; 41 ref.Since a number of decades the Netherlands faces manure surpluses, because the amount of phosphate produced in animal manure is larger than the amount that can be applied on agricultural land according to the application limits. This surplus needs to be exported from the Dutch agricultural sector. The costs of manure export are however high, and therefore new, simple and cheap innovative techniques are needed to recover phosphate from fresh or digested manure (digestate). The relative small amount of concentrated recovered P can be transported more economically for use outside the Netherlands or can be utilized as secondary P resource for industries, e.g. for the production of fertiliser. We report laboratory and pilot experiments that were carried out in search for cheap and innovative techniques of phosphorus recovery. The main goal of the experiments was to reduce the P-content in pig slurry or digested pig slurry by 25% to 75%. If this goal can be reached with -recovery, in principle all manure including its valuable components (organic matter and other nutrients) can be applied sustainably on agricultural land in The Netherlands. The results show that both on laboratory scale and pilot scale 25-75% of P can be technically recovered with the so called 'acid-base approach'. From a sustainability point of view the impact is positives in terms of energy savings, CO 2 -savings, phosphorus savings and also nitrogen savings. The economical perspective is also positive but will strongly depend on the disposal prices of treated pig slurry with a reduced P content and its value as substitute for mineral N fertiliser and value in terms of organic soil improver on the manure market.Keywords: phosphate, manure, digestate, intensive livestock production, phosphate recovery, pig slurry, manure treatment, manure separation. • Acquisition, duplication and transmission of this publication is permitted with clear acknowledgement of the source.• Acquisition, duplication and transmission is not permitted for commercial purposes and/or monetary gain.• Acquisition, duplication and transmission is not permitted of any parts of this publication for which the copyrights clearly rest with other parties and/or are reserved. New innovative approaches are needed to close the phosphorus (P) cycle in The Netherlands because the agricultural sector currently produces about 25% more P, in the form of manure, than can be applied on land. One promising solution to deal with the surplus amount of P in manure is to recover the surplus of P in the form of a mineral P product for use as a P fertiliser (for export) or as a raw P feedstock for the P fertiliser industries. This idea for 'closing the manure P cycle in The Netherlands' has been circulating for a while, but was never thought well over until in 2013 a Public Private Partnership (PPP) was set up with t...

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“…Intensive swine industry has rapidly developed in the past few years (Deng et al, 2007;Bernet and Béline, 2009;Girard et al, 2009;Fernandes et al, 2012) and generates large amounts of excrements and wastewater in concentrated areas. One of the most common waste management practices is the land application of swine wastewater as fertilizer or, in some regions, discharge of wastewater to nearby fields and water bodies after simple treatment (Zhou et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Dynamics of bacterial metabolic profile and community structure during the mineralization of organic carbon in intensive swine farm wastewater

Liu

2015

Chilean J. Agric. Res.

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Land application of intensive swine farm wastewater has raised serious environmental concerns due to the accumulation and microbially mediated transformation of large amounts of swine wastewater organic C (SWOC). Therefore, the study of SWOC mineralization and dynamics of wastewater microorganisms is essential to understand the environmental impacts of swine wastewater application. We measured the C mineralization of incubated swine wastewaters with high (wastewater H) and low (wastewater L) organic C concentrations. The dynamics of bacteria metabolic profile and community structure were also investigated. The results showed that SWOC mineralization was properly fitted by the two-simultaneous reactions model. The initial potential rate of labile C mineralization of wastewater H was 46% higher than that of wastewater L, whereas the initial potential rates of recalcitrant C mineralization of wastewaters H and L were both around 23 mg L -1 d -1 . The bacterial functional and structural diversities significantly decreased for both the wastewaters during SWOC mineralization, and were all negatively correlated to specific UV absorbance (SUVA254; P < 0.01). The bacteria in the raw wastewaters exhibited functional similarity, and both metabolic profile and community structure changed with the mineralization of SWOC, mainly under the influence of SUVA254 (P < 0.001). These results suggested that SWOC mineralization was characterized by rapid mineralization of labile C and subsequent slow decomposition of recalcitrant C pool, and the quality of SWOC varied between the wastewaters with different amounts of organic C. The decreased bio-availability of dissolved organic matter affected the dynamics of wastewater bacteria during SWOC mineralization.

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Chemical phosphorus removal: a clean strategy for piggery wastewater management in Brazil

Cited by 41 publications

References 24 publications

Pathogen Inactivation and the Chemical Removal of Phosphorus from Swine Wastewater

Pathogen Inactivation and the Chemical Removal of Phosphorus from Swine Wastewater

Chemical phosphorus recovery from animal manure and digestate : Laboratory and pilot experiments

Dynamics of bacterial metabolic profile and community structure during the mineralization of organic carbon in intensive swine farm wastewater

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