6533b85afe1ef96bd12b8e4d
RESEARCH PRODUCT
Analysis of pharmaceutical biodegradation of WWTP sludge using composting and identification of certain microorganisms involved in the process.
M. GamónRafael BoludaMaria ÀNgels Cebrià I IranzoSalvador Mormeneosubject
Environmental EngineeringMicroorganism0208 environmental biotechnology02 engineering and technology010501 environmental sciences01 natural sciencesBenzylpenicillinWaste Disposal FluidSoilmedicineEnvironmental ChemistryWaste Management and Disposal0105 earth and related environmental sciencesSewageChemistryCompostingBiodegradationContaminationPulp and paper industryPollution020801 environmental engineeringBiodegradation EnvironmentalWastewaterSpainSoil waterSewage treatmentSludgemedicine.drugdescription
Pharmaceuticals (PhCs) are organic contaminants that have been detected in wastewater, surface water, and soils throughout the world. The presence of 10 commonly used PhCs in Spain (azithromycin, benzylpenicillin, citalopram, fluconazole, fluoxetine, ibuprofen, irbesartan, olanzapine, telmisartan, and venlafaxine) was analysed at four wastewater treatment plants, and the changes in their concentrations during treatment were assessed. Although certain some PhCs were degraded in the treated water, their presence in sewage sludge increased in all cases. The sewage sludge was composted using rice straw to degrade the PhCs, and the composting efficiency was modified by changes in the relative C/N ratio of the composting blend. Using a simple microbiological culture process for enrichment, 11 different strains of microorganisms that degraded specific PhCs were identified. Ibuprofen and azithromycin were metabolized by one and four strains, respectively, and both PhCs were used as a carbon source; in addition, six strains used irbesartan as a nitrogen source.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-11-01 | The Science of the total environment |