Sorption and desorption behavior of residual antidepressants and caffeine in freshwater sediment and sewage sludge

Costa, Ismael Laurindo; Machado, Christiane S.; Pletsch, Adelmo Lowe; Torres, Yohandra Reyes

doi:10.1016/j.ijsrc.2021.10.004

Cited by 11 publications

(6 citation statements)

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“…Compounds with log K oc values between 3.5 and 4.4 show a strong tendency to sorption. For substances with a log K oc >3.5, there is a greater affinity for soils, sludge and agricultural residues 63,64 …”

Section: Resultsmentioning

confidence: 99%

“…For substances with a log K oc >3.5, there is a greater affinity for soils, sludge and agricultural residues. 63,64 All values of log K d (pH 6.0 = 0.9, pH 7.0 = 1.2 and pH 8.0 = 1.4) and log K oc (pH 6.0 = 1.3, pH 7.0 = 1.7 and pH 8.0 = 1.8) obtained for the sorption of CIP at different pHs in poultry litter were considered low (log K oc <3.5). That indicates that the analyte does not show a strong tendency to adsorb in this matrix, implying the tendency of this compound to reach out to other environmental compartments.…”

Section: Cip Distribution Coefficients In Poultry Littermentioning

confidence: 99%

“…Some studies suggest that the hydrophobic interactions of the nonionized form are the dominant sorption mechanism for organic compounds with the highest log K oc values. [64][65][66] For more hydrophilic drugs, such as CIP, adsorption also may be related to the surface charge of functional groups in the organic matrix of poultry litter. Carboxylic and phenolic groups present in the manure could provide exchange sites, increasing the adsorption affinity.…”

Section: Cip Distribution Coefficients In Poultry Littermentioning

confidence: 99%

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Adsorption and partition of the antibiotic ciprofloxacin in poultry litter

Effting,

Giona,

Junior

2024

J of Chemical Tech & Biotech

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BACKGROUNDThe use of antibiotics on a large scale is a common practice in poultry farming. This research investigated the adsorption of the antibiotic ciprofloxacin (CIP) in poultry litter samples to assess the potential risk to ecosystems due to the compound mobility. This residue is used directly dispersed in agricultural soils as a biofertilizer.RESULTSExperimental data were evaluated in terms of fits of isotherm models. The mobility of CIP was assessed by the distribution coefficient and the partition coefficient related to organic matter. The studied poultry litter presented a pH of 8.5±0.1, moisture content of 20.3±1.3 %, and total solids content of 79.8±1.2 %, with a high amount of both inorganic matter (57.1±1.7 %) and organic matter (42.9±1.7 %) content in its composition. The Redlich‐Petersen isotherm was the model that satisfactory described the experimental data, with higher maximum adsorption capacities at more alkaline pHs (pH 8.0 = 3015.0±118.0 μg g‐1, pH 7 = 2916.6±1152.9 μg g‐1 and pH 6 = 410.0±18.1 μg g‐1). The log Kd (pH 6 = 0.9, pH 7 = 1.2, and pH 8 = 1.4) and log Koc (pH 6 = 1.3, pH 7 = 1.7, and pH 8 = 1.8) values obtained for the sorption of ciprofloxacin at different pHs in poultry litter were considered low (log Koc <3.5).CONCLUSIONSThe analyte does not tend to adsorb in the poultry litter and might leach to other environmental compartments. The information obtained in this study reinforces the ecotoxicological concern about antibiotic residues in the environment.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

Section: Cip Distribution Coefficients In Poultry Littermentioning

confidence: 99%

Section: Cip Distribution Coefficients In Poultry Littermentioning

confidence: 99%

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Adsorption and partition of the antibiotic ciprofloxacin in poultry litter

Effting,

Giona,

Junior

2024

J of Chemical Tech & Biotech

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“…Ozonation removal efficiency was 67% on average at an ozone dose of 0.49 ± 0.04 g O3/g DOC, ranging from − 21% (fluoxetine) to 99% (diclofenac). Negative removal can be caused by sorption and desorption since the particle composition in the sewage sludge is also impacted by the ozonation (Costa et al, 2022). Of the 38 detected compounds in the conventional WWTP effluent, 16 were removed to levels below the limit of quantification (LOQ) in the ozonated effluent.…”

Section: Pharmaceutical Analysis and Ozone Removal Efficiencymentioning

confidence: 99%

Effects of conventionally treated and ozonated wastewater on the damselfly larva oxylipidome in response to on-site exposure

et al. 2022

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“…7,34 However, ECs can adsorb to solid particulate matter, and desorb again once in the environment. 1,35 Thus, analysing the aqueous part of the sample only leads to underestimation of the total concentration in the sample. 11 Furthermore, in wastewater treatment, ECs can also adsorb to sludge, and for instance enter the environment when sludge is applied in agriculture.…”

Section: Introductionmentioning

confidence: 99%