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Sorption and biodegradation characteristics of the selected pharmaceuticals and personal care products onto tropical soil
- Source :
- Water science and technology : a journal of the International Association on Water Pollution Research. 73(1)
- Publication Year :
- 2016
-
Abstract
- In the present study, the sorption and biodegradation characteristics of five pharmaceutical and personal care products (PPCPs), including acetaminophen (ACT), carbamazepine (CBZ), crotamiton (CTMT), diethyltoluamide (DEET) and salicylic acid (SA), were studied in laboratory-batch experiments. Sorption kinetics experimental data showed that sorption systems under this study were more appropriately described by the pseudo second-order kinetics with a correlation coefficient (R2) > 0.98. Sorption equilibrium data of almost all target compounds onto soil could be better described by the Freundlich sorption isotherm model. The adsorption results showed higher soil affinity for SA, following by ACT. Results also indicated a slight effect of pH on PPCP adsorption with lower pH causing lower adsorption of compounds onto the soil except for SA at pH 12. Moreover, adsorption of PPCPs onto the soil was influenced by natural organic matter (NOM) since the higher amount of NOM caused lower adsorption to the soil. Biodegradation studies of selected PPCPs by indigenous microbial community present in soil appeared that the removal rates of ACT, SA and DEET increased with time while no effect had been observed for the rest. This study suggests that the CBZ and CTMT can be considered as suitable chemical sewage indicators based on their low sorption affinity and high resistance to biodegradation.
- Subjects :
- Environmental Engineering
Toluidines
0208 environmental biotechnology
Kinetics
DEET
02 engineering and technology
010501 environmental sciences
complex mixtures
01 natural sciences
Environmental impact of pharmaceuticals and personal care products
Soil
Adsorption
Organic chemistry
Soil Pollutants
Freundlich equation
0105 earth and related environmental sciences
Water Science and Technology
Tropical Climate
Sewage
Chemistry
Soil chemistry
Sorption
Biodegradation
020801 environmental engineering
Biodegradation, Environmental
Carbamazepine
Pharmaceutical Preparations
Environmental chemistry
Thermodynamics
Subjects
Details
- ISSN :
- 02731223
- Volume :
- 73
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Water science and technology : a journal of the International Association on Water Pollution Research
- Accession number :
- edsair.doi.dedup.....77aab61f90e1ac088b578f1c118cd4bc