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University of Novi Sad, Faculty of technical sciences, Department for environmental engineering and occupational safety Im...
Emerging substances of concern - ESOCs• Micro pollutants• Organic compounds  – Biocides…Bioterrorism agents  – Flame retar...
Characteristics of PPCPs• PPCPs – large variety of characteristics and chemical forms   –   small organic molecules,   –  ...
Possible exposure routes of PPCPs into environment
PPCPs – chemicals used every day• Dual nature of problem with PPCPs in water• Ciprofloxacin   – can alter and be altered b...
Metabolite boom!Better the devil you know…
WWT process and potential impact of PPCPs• Carefully considered and controllable process   – designed to take advantage an...
Elimination techniques• Low cost   –   Dilution   –   Temperature   –   SRT   –   HRT• High cost   –   Viability   –   T&E...
Elimination rates•                   Paths of infiltration    β-blockers diverse results - <10 to 80%    • can be explaine...
Serbia• 70 to 84% of state are rural municipalities – projected plan for  WWTP is small standard 2-step treatment plant.  ...
Planed activities…• Activities   – Legislation overview and suggestions for modification.   – Research and development of ...
…and research• Methods and parameters   – TSS, VSS, ON, IN, ammo-     niacal itrogen, TC, IC, TOC   – SPE, GC/MS• Aim of r...
Summary• Analyses of predicted sites for WWTP.• The PPCPs monitoring will be of great  importance in future.• Removal tech...
Presenter:                           Maja Sremački        M.Sc. of environmental engineering and occupational             ...
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1-3_3. impact of pharmaceuticals and personal care products, maja sremacki

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1-3_3. impact of pharmaceuticals and personal care products, maja sremacki

  1. 1. University of Novi Sad, Faculty of technical sciences, Department for environmental engineering and occupational safety Impact of PPCPs on evolution ofwastewater treatment in developing countries Authors: Maja Sremački, M.Sc. Jovana Simić, M.Sc. Milena Stošić, M.Sc. Srđan Kovačević, M.Sc. 17. May 2012. YWP Conference, Sofia, Bulgaria
  2. 2. Emerging substances of concern - ESOCs• Micro pollutants• Organic compounds – Biocides…Bioterrorism agents – Flame retardants, – PPCPs … Drugs, • Chronic doses – mg/L (ppb) – ng/L (ppt) – Biological metabolites…
  3. 3. Characteristics of PPCPs• PPCPs – large variety of characteristics and chemical forms – small organic molecules, – large polymers – high polymorphism potential, – introduction into the environment after human metabolism, – complex chemical structure, – High ionization potential…• Relevant processes regarding PPCPs in the environment include • sorption to soils and sediments, • complexation with metals and organics, • chemical oxidation, photolysis, volatilization, biodegradation...
  4. 4. Possible exposure routes of PPCPs into environment
  5. 5. PPCPs – chemicals used every day• Dual nature of problem with PPCPs in water• Ciprofloxacin – can alter and be altered by the metabolism and effects of other drugs. – fluoroquinolone class – antibiotics used for treatment of bacterial infections. – stops the multiplication of bacteria by inhibiting the reproduction and repair of their DNA.• Ibuprofen – nonsteroidal anti-inflammatory drug – high global consumption rate – rapidly excreted in various forms, which not only have high acute toxicity, but are also suspected of endocrine disrupting activity in human and wildlife– CIPRO and IBN in the same body – high possibility of toxic effect.
  6. 6. Metabolite boom!Better the devil you know…
  7. 7. WWT process and potential impact of PPCPs• Carefully considered and controllable process – designed to take advantage and maximize a microorganism ability to decompose OM.• Low microorganism activity?• Bacteria responsible for N/P sensitivity to PPCPs.• The effect of pharmaceuticals on bacterial community structure in AS process (Kraigher et al. 2008). – Analyses of the bacterial rRNA genes indicated a minor but consistent shift in bacterial community structure in a bioreactor supplied with pharmaceuticals.
  8. 8. Elimination techniques• Low cost – Dilution – Temperature – SRT – HRT• High cost – Viability – T&E optimum – O&M – Development
  9. 9. Elimination rates• Paths of infiltration β-blockers diverse results - <10 to 80% • can be explained with a fact that studies followed only water samples. Elimination rate [%] Cipro CBZ Excreted unchanged [%] 1-3 33 CAS (7days) 86 - 44 *Joss et al. ≤60* Denitrifying (11 days) 79 - 193 Ditch oxidation (3 days) 96 - 32• PPCPs could be removed from water due to sorption to sludge and still remain a treat for environment.
  10. 10. Serbia• 70 to 84% of state are rural municipalities – projected plan for WWTP is small standard 2-step treatment plant. Factor WDS SCS WWTP Total Municipalities ~ 150 ~ 100 ~ 20 168 Households 2.101.767 1.359.385 ~300.000 2.497.187 Population ~ 6.000.000 ~ 4.500.000 ~ 700.000 7.120.666• Increasing trend of consumption• Studies (indirectly) have shown that PPCPs in wastewater are: – detergents and sops, – caffeine, ibuprofen, diclophenac – fluoroquinolones, – β-blockers and cytostatic drugs.
  11. 11. Planed activities…• Activities – Legislation overview and suggestions for modification. – Research and development of detailed study for influence of targeted and present PPCPs in • Waste water • Ground water • Surface water• Sampling sites – Municipality of Novi Sad – Municipality of Subotica
  12. 12. …and research• Methods and parameters – TSS, VSS, ON, IN, ammo- niacal itrogen, TC, IC, TOC – SPE, GC/MS• Aim of research – Targeted PPCPs and metabolites, determina- tion their possible impact on WWT processes
  13. 13. Summary• Analyses of predicted sites for WWTP.• The PPCPs monitoring will be of great importance in future.• Removal technology for ESOCs may prove essential for handling of today’s mixtures WW.• These substances are unpredictable and it is necessary to promptly address and acknowledge their existence in water and WW in order to maximize the treatment efficiency.
  14. 14. Presenter: Maja Sremački M.Sc. of environmental engineering and occupational safety, PhD. student Faculty of technical sciences, University of Novi Sad, Serbia E-mail: majasremacki@uns.ac.rsLet us thinking ahead… then, who knows?Thank You for the attention…

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