Composting of swine manure spiked with sulfadiazine, chlortetracycline and ciprofloxacin

Selvam, Ammaiyappan; Zhao, Zhenyong; Wong, Jonathan W.C.

doi:10.1016/j.biortech.2011.12.073

Cited by 137 publications

(47 citation statements)

References 19 publications

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“…Analysis by LC-MS/MS (Axys Analytical Lab, Sydney, BC, Canada) showed that extractable ciprofloxacin was reduced by nearly 80% in the CIP compost and 50% in the CTL compost after 28 days (Table 2). While these were not replicated samples and a great deal of variation is likely given the nature of the compost matrix, the results are in agreement with a previously published study concerning ciprofloxacin in compost (27). Internal compost temperatures remained well above 55°C for the duration of the experiment: average temperatures reached 62°C within 5 days of starting the experiment, peaked at 74°C on day 14, and decreased to 65°C by day 28.…”

Section: Initial Evaluation Lc/ms-ms Analysissupporting

confidence: 89%

Ciprofloxacin Residues in Municipal Biosolid Compost Do Not Selectively Enrich Populations of Resistant Bacteria

Youngquist

Liu

Orfe

et al. 2014

Appl Environ Microbiol

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bBiosolids and livestock manure are valuable high-carbon soil amendments, but they commonly contain antibiotic residues that might persist after land application. While composting reduces the concentration of extractable antibiotics in these materials, if the starting concentration is sufficiently high then remaining residues could impact microbial communities in the compost and soil to which these materials are applied. To examine this issue, ciprofloxacin was added to biosolid compost feedstock to achieve a total concentration of 19 ppm, approximately 5-fold higher than that normally detected by liquid chromatography-tandem mass spectrometry (LC-MS/MS) (1 to 3.5 ppm). This feedstock was placed into mesh bags that were buried in aerated compost bays. Once a week, a set of bags was removed and analyzed (treated and untreated, three replicates of each; 4 weeks). Addition of ciprofloxacin had no effect on the recovery of resistant bacteria at any time point (P ‫؍‬ 0.86), and a separate bioassay showed that aqueous extractions from materials with an estimated 59 ppm ciprofloxacin had no effect on the growth of a susceptible strain of Escherichia coli (P ‫؍‬ 0.28). Regression analysis showed that growth of the susceptible strain of E. coli can be reduced given a sufficiently high concentration of ciprofloxacin (P < 0.007), a result that is consistent with adsorption being the primary mechanism of sequestration. While analytical methods detected biologically significant concentrations of ciprofloxacin in the materials tested here, the culture-based methods were consistent with the materials having sufficient adsorptive capacity to prevent typical concentrations of ciprofloxacin residues from selectively enriching populations of resistant bacteria.

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Section: Initial Evaluation Lc/ms-ms Analysissupporting

confidence: 89%

Ciprofloxacin Residues in Municipal Biosolid Compost Do Not Selectively Enrich Populations of Resistant Bacteria

Youngquist

Liu

Orfe

et al. 2014

Appl Environ Microbiol

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“…This might be related to higher persistence of FQs than TCs and SAs during composting. Selvam et al (2012) have reported that approximately 17-31 % of spiked CFC remained in contrast to complete removal of CTC and SDZ from the composting mass within the period of composting. In the case of the TCs, the residual level is generally lower than that in the manure samples, however not significantly (p<0.05) different among the three types of composts.…”

Section: Veterinary Antibiotic Residues In Compostsmentioning

confidence: 99%

“…In the case of the TCs, the residual level is generally lower than that in the manure samples, however not significantly (p<0.05) different among the three types of composts. This implied that TCs might be degraded substantially during the composting process (Kim et al 2012;Selvam et al 2012;Wu et al 2011). Abiotic transformation of the antibiotics might contribute a great to the degradation during composting.…”

Section: Veterinary Antibiotic Residues In Compostsmentioning

confidence: 99%

Residues and potential ecological risks of veterinary antibiotics in manures and composts associated with protected vegetable farming

Zhang

Luo

et al. 2014

Environ Sci Pollut Res

111

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Veterinary antibiotics (VAs) are emerging contaminants and enter into soil principally by agricultural application of organic fertilizer. A total of 33 solid animal manures and 17 compost samples from protected vegetable farms in nine areas of China were analyzed for the antibiotic classes of tetracyclines, fluoroquinolones, sulfonamides, and macrolides (17 substances in total). Oxytetracycline was found as a dominant compound in the samples, and its highest concentration reached 416.8 mg kg −1 in a chicken manure sample from Shouguang, Shandong Province. Among the samples, animal manures (especially pig manure) contained higher VA residues than composts. However, fluoroquinolones exhibited higher persistence in the compost samples than other antibiotic classes. This is particularly the case in the rice husk compost, which contained the highest level of ofloxacin and ciprofloxacin (1334.5 and 1717.4 μg kg −1 on average, respectively). The veterinary antibiotic profile in the risk husk compost had a good relationship with that in the corresponding manures. The refined commercial compost had the lowest VA residues among the compost samples in general. This implied that composting process might be important to reduce the antibiotic residue. High residue of antibiotics in soil was assumed to be a hazard to ecosystem. This is especially noticeable under current application rates (150 t ha) in protected vegetable farming because over half of the samples exhibited a risk quotient (RQ) >1 for one or more antibiotics.

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“…Recent research on swine slurry composting and its application to agricultural soils has provided new insights into how swine slurry compost management (turning, moisture, bulking material, temperature, etc.) affects nitrogen dynamics (Angnes et al, 2013;Fukumoto et al, 2009), green house gas emissions (Fukumoto et al, 2003;Selvam et al, 2012;Zhong et al, 2013), pharmaceuticals (Derby et al, 2011) and microbial populations (Kuok et al, 2012;Mc Carthy et al, 2011;Pan et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Effect of turning frequency and season on composting materials from swine high-rise facilities

et al. 2015

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a b s t r a c tComposting swine slurries has several advantages, liquid slurries are converted to solids at lower moisture, the total volume and weight of material is reduced and the stabilized product is more easily transported off-site. Despite this, swine waste is generally stored, treated and applied in its liquid form. High-rise finishing facilities (HRFF) permit liquid slurries to be converted to solids which are partially decomposed underneath the HRFF and then finished in compost windrows. The purpose of this study was to evaluate the effect of turning frequency and ambient weather conditions on biological, physical and chemical properties of composted slurry-woodchip mixtures from HRFF. Compost trials were conducted in either fall (FT) or spring (ST) and piles were turned once or three times per week or upon compost temperature reaching 65°C. Physical, chemical and microbiological characteristics were measured over the course of 112 (FT) or 143 (ST) days of composting. Total carbon, total nitrogen (N) and inorganic N decreased in all piles. Ammonium decreased while nitrate increased in all piles (including unturned), but total N losses were greatest in piles turned more frequently during the ST. Microbial populations of nitrifiers were dominated by ammonia-oxidizing archaea (3.0 Â 10 3 -4.2 Â 10 6 cells g À1 compost) but ammonia oxidizing bacteria (below detection to 6.0 Â 10 5 cells g À1 compost) varied in response to turning and compost temperature; denitrifiers were present in high concentrations throughout the process. Swine HRFF materials composted well in windrows regardless of turning frequency and despite significant differences in starting materials and low initial C/N. Volume reduction, low moisture and low readily degradable organic matter suggest that the finished compost would have lower transportation costs and should provide value as a soil conditioner. Published by Elsevier Ltd.

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Composting of swine manure spiked with sulfadiazine, chlortetracycline and ciprofloxacin

Cited by 137 publications

References 19 publications

Ciprofloxacin Residues in Municipal Biosolid Compost Do Not Selectively Enrich Populations of Resistant Bacteria

Ciprofloxacin Residues in Municipal Biosolid Compost Do Not Selectively Enrich Populations of Resistant Bacteria

Residues and potential ecological risks of veterinary antibiotics in manures and composts associated with protected vegetable farming

Effect of turning frequency and season on composting materials from swine high-rise facilities

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