Regeneracja żywic polimerowych stosowanych do frakcjonowania naturalnych substancji organicznych

• Autorzy: Urbanowska A. , Kabsch-Korbutowicz M.

Warianty tytułu

EN

Regeneration of XAD Resins Used for Natural Organic Matter Fractionation

• Języki publikacji: PL

Abstrakty

EN

Natural organic matter (NOM) removal plays important role in water treatment due to their ability to form disinfection by-products. Due to NOM complexity, it is crucial to separate it into fractions and then subject them to the detailed analysis. Organic contaminants are heterogeneous mixture of various organic compounds of diverse properties and could be divided into 3 fractions: hydrophobic, hydrophilic and transphilic. Currently, the common NOM fractionation method was proposed by Chow et al. This method employs XAD resins to fractionate NOM. One of decisive factors, when it comes to their usability, is the possibility to regenerate it. In this connection evaluation of XAD resin regeneration methods efficiency was performed. Supelite DAX-8, Amberlite XAD-4 and Amberlite IRA-958 nonionic macroporous resins were used in the experiments. Experiments included resin preparation by initial regeneration, resin saturation with NOM and final resin regeneration. Experiments were carried out on the model solution and surface water taken from Odra River (Poland). Regeneration was conducted in a column system with the use of two methods. The first one was in accordance with Chow et al. procedure. The second one comprised of successive resin rinsing with redistilled water, 0.1 n NaOH, 0.1 n HCl, 0.1 n NaOH, redistilled water, methanol, acetonitrile, methanol and redistilled water. Preliminary research that were conducted in order to evaluate sorption performance in column system revealed that in all cases same schema could be observed: in few initial minutes, UV 254 nm absorbance, colour and dissolved organic carbon concentration in column effluent was constant, then started rising until reaching feed solution values. It is noticeable that none of the resins adsorbed all contaminants at any time. Subsequent experiments has shown that developed by Chow et al. method of saturated resins regeneration was not able to restore their initial sorptive capacity. Regeneration procedure developed by paper authors allowed full regeneration of NOM saturated resin, even after second saturation-regeneration cycle. Influence of regeneration time on resin sorption capacity restoration efficiency was also observed: longer regeneration resulted in better results. The best effects of resin regeneration was observed for 3 h contact time with each regenerant solution.

Słowa kluczowe

PL

naturalne substancje organiczne; żywice typu XAD; regeneracja

EN

natural organic matter; XAD resins; regeneration

• Wydawca: Politechnika Koszalińska
• Czasopismo: Rocznik Ochrona Środowiska
• Rocznik: 2015
• Tom: Tom 17, cz. 1
• Strony: 664--679
• Opis fizyczny: Bibliogr. 19 poz., tab., rys.

Twórcy

autor

Urbanowska A.

• Politechnika Wrocławska

autor

Kabsch-Korbutowicz M.

• Politechnika Wrocławska

Bibliografia

• 1. Anielak P., Janio K., Jankowski J.: Removal of Chlorophenoxy Acid Derivatives from Wastewaters. Chemistry for the Protection of the Environment Environmental Science Research. 42, 789–796 (1991).
• 2. Chow A.T., Dahlgren R.A., Gao S.: Physical and chemical fractionation of dissolved organic matter and trihalomethane precursors: a review. Journal of Water Supply Research and Technology. 54, 475–507 (2005).
• 3. Chow Ch.W.K., Fabris R., Drikas M.: A rapid fractionation to characterize natural organic matter for the optimization of water treatment process. Journal of Water Supply: Research and Technology – AQUA. 53, 85–92 (2004).
• 4. Gu B., Brown G. M., Maya L., Lance M. J., Moyer B. A.: Regeneration of perchlorate (ClO4 -) – loaded anion exchange resins by a novel tetrachloroferrate (FeCl4 -) displacement technique. Environmental Science Technology. 35, 3363–3368 (2001).
• 5. Grzybowski W., Pempkowiak J.: Application of Amberlite XAD resins to the isolation of substances from sea water. Oceanologia. 33, 105–109 (1992).
• 6. Kowal A.L., Świderska-Bróż M.: Oczyszczanie wody. Podstawy teoretycznei technologiczne, procesy i urządzenia. PWN. Warszawa, 2007.
• 7. Leenheer J.A.: Comprehensive approach to preparative isolation andfractionation of dissolved organic carbon from natural waters and wastewaters. Environmental Science and Technology. 15, 578–587 (1981).
• 8. Leenheer J.A., Huffman Jr. E.W.D.: Classification of organic solutes in water by using macroreticular resins. Journal Research US Geological Survey. 4, 737–751 (1976).
• 9. Malcolm R.L., MacCarthy P.: Quantitative evaluation of XAD-8 and XAD-4 resins used in tandem for removing organic solutes from water. Environment International. 18, 597–607 (1992).
• 10. Matilainen A., Gjessing E. T., Lahtinen T., Hed L., Bhangar A., Sillanpaa M.: An overview of the methods used in the characterisation of natural organic matter (NOM) in relation to drinking water treatment. Chemosphere. 83, 1431–1442 (2011).
• 11. Matilainen A., Sillanpaa M.: Removal of natural organic matter from drinking water by advanced oxidation processes. Chemosphere. 80, 351–365 (2010).
• 12. Rajca M.: NOM fouling mechanism during ultrafiltration. ACEE Architecture Civil Engineering Environment. 4, 113–120 (2011).
• 13. Singer P.: Control of Disinfection By‐Products in Drinking Water. Journal of Environmental Engineering. 120, 727–744 (1994).
• 14. Smith E. H., Alqabany A. A.: Fractionation of natural organic matter in the Nile River: Implications for treated water quality. Water Science and Technology. 59, 1989–1997 (2009).
• 15. Vieira R. F., Berenguel A. T., Silva M. A., Vilaca J. S., Domingues V. F., Figueiredo S. A.: Natural organic matter fractionation along the treatment of water for human consumption. Global NEST Journal. 14, 399–406 (2012).
• 16. Zularisam A.W., Ismail A.F., Salim M. R., Sakinah M., Ozaki H.: The effects of natural organic matter (NOM) fractions on fouling characteristics and flux recovery of ultrafiltration membranes. Desalination. 212, 191–208 (2007).
• 17. Amberlite® XAD4 Industrial Grade Polymeric Adsorbent, Product Data Sheet, http://www.dow.com/assets/attachments/business/process_chemicals/amberlite_xad/amberlite_xad4/tds/amberlite_xad4.pdf [data dostępu: 2015-03-15]
• 18. Product Data Sheet, Amberlite® IRA958 Cl Industrial Grade Strong Base Anion Exchanger, http://www.dow.com/assets/attachments/business/ier/ier_ for_industrial_water_treatment/amberlite_ira958_cl/tds/amberlite_ira958_cl.pdf [data dostępu: 2015-03-15]
• 19. Supelco, Resins & Media, http://www.sigmaaldrich.com/content/dam/sigma- aldrich/docs/Supelco/Brochure/1/supelco-13-resins-media.pdf [data dostępu: 2015-03-15]