Synthesis and Utilization of New Flocculants from Waste Polystyrene by Modified Sulfonation

Year 2018, Volume: 3 Issue: 3, 149 - 155, 31.12.2018

Esra Yel Sofia Safi Gamze Dinç

Abstract

The efficiencies of sulfonated polystyrene flocculants (FSPS) obtained in modified sulfonation experiments were revealed for real wastewater treatment. Moreover, their performances were compared with sulfonated polystyrene obtained by conventional method and conventional flocculants. Efficiency of turbidity and COD removal with synthesized flocculants in coagulation-flocculation process shown an alteration based on plastics’ washing wastewater types and synthesized flocculants. While the highest turbidity removal efficiency with synthesized flocculants was obtained in HDPE, COD removal was found highest in PP washing wastewater. Moreover, while FSPS3 among synthesized flocculants shown better performance in turbidity removal from wastewaters, FSPS1 was better in COD removal. As for treatment sludge, FSPS3 usually had higher efficiency on enhancement of sludge dewatering properties compared to other synthesized flocculants.

Keywords

Sulfonation, Polystyrene waste, Coagulation-flocculation, Wastewater, Treatment sludge

Atık Polistirenden Modifiye Sülfolama ile Yeni Flokülant Sentezi ve Kullanımı

Abstract

Sunulan bu çalışmada çeşitli modifiye sülfolama denemeleri yapılarak elde edilen sülfolanmış polistiren flokülantların gerçek atıksu arıtımında etkinlikleri ortaya konmuştur. Dahası, bu flokülantların performansları klasik yöntemle elde edilen sülfolanmış polistiren ve konvansiyonel flokülant ile kıyaslanmıştır. Koagülasyon-flokülasyon işleminde sentezlenen flokülantlar ile bulanıklık ve KOİ giderim yüzdesi, plastiklerin yıkama atıksuyu türüne ve sentezlenmiş flokülantlara göre değişiklik göstermiştir. Sentezlenen flokülantlar ile en yüksek bulanıklık giderimi HDPE atıksuyunda gözlenirken, KOİ giderimi en fazla PP yıkama atıksularında elde edilmiştir. Dahası, sentezlenen flokülantlar arasında FSPS3, atık sulardan bulanıklık gideriminde daha iyi performans gösterirken, FSPS1 KOİ gideriminde daha başarılı olmuştur. Çamurda ise, FSPS3 diğer sentezlenmiş flokülantlara kıyasla çamur susuzlaştırma özelliklerinin geliştirilmesinde genellikle daha yüksek verimliliğe sahiptir.

Keywords

Sülfolama, Polistiren atık, Koagulasyon-flokülasyon, Atıksu arıtma çamuru

References

• [1] Vink, H., 1981. A New Convenient Method for the Synthesis of Poly(styrenesulfonic acid), Macromolecular Chemistry and Physics,182, 279-281.
• [2] Bozkurt, A., 2002. Dielectric and Conductivity Relaxations in Quaternary Ammonium Polymer, Physics and Chemistry of Solids, 63, 685-690.
• [3] Bozkurt, A., 2005. Anhydrous Proton Conductive Polystyrene Sulfonic Acid Membranes, Turkish Journal of Chemistry, 29, 117–123.
• [4] Turbak, A. F., 1962. Polymer Sulfonation without Cross Linking. The Sulfur Trioxide-Phosphate System, Ind. Eng. Chem., Prod. Res. Dev. 1, 275-278.
• [5] Kucera, F., Jancar J., 1996. Preliminary Study of Sulfonation of Polystyrene by Homogeneous and Heterogeneous Reaction, Chemical Papers, 50, 224—227.
• [6] Makowski, H. S. andLundberg, R. D., 1981, Process for controlled gelation of polymeric solution, Google Patents.
• [7] Bekri-Abbes, I., Bayoudh, S., Baklouti, M., 2008. The Removal of Hardness of Water Using Sulfonated Waste Plastic, Desalination, 222, 81–86.
• [8] Vandervoorde, C.A., 1996. Amphiphilic Star Polymers as Solubilizing Agents for Environmental Separations, PhD Thesis, Massachusets Institute of Technology, USA.
• [9] Bekri-Abbes, I., Bayoudh, S., Baklouti, M., 2007. A Technique for Purifying Wastewater with Polymeric Flocculant Produced from Waste Plastic, Desalination, 204, 198–203.
• [10] Holley, D.W., 2009. Synthesis and Characterization of Branched Polyelectrolytes: Star-branched NaPSS, PhD Thesis, University of Tennessee, USA.
• [11] Sato, Y., Koder, Y., Goto, J. and Matsui, Y., 2002. Effect of Polystyrene Addition on the Monomer Recycling of Phenol Novolac, Polymer Degradation and Stability, 78, 315–322.
• [12] Inagaki, Y., Kuromiya, M., Noguchi, T. and Watanabe, H., 1999. Reclamation of Waste Polystyrene by Sulfonation Langmuir, 15, 4171-4175.
• [13] Sulkowski, W.W, Wolinska, A., Szoltysik, B., Bajdur, W.M., Sulkowska, A., 2005. Preparation and properties of flocculants derived from polystyrene waste, Polymer Degradation and Stability, 90, 272-280.
• [14] Sulkowski, W.W., Wolinska, A., Pentak, D., Maslanka, S., Sulkowska A., 2006. The Influence of the Chemical Additives in Polystyrene on the Features of Flocculants Obtained during Sulphonation of the Polystyrene, Macromol. Symp. 245–246, 621–627.
• [15] Santos, A.S.F, Teixeira. B.A.N., Agnelli J.A. 2005. Characterization of Effluents Through a Typical Plastic Recycling Process: An Evaluation of Cleaning Performance and Environmental Pollution Resources, Conservation and Recycling, 45,159-171.
• [16] Reynolds, T.D, Richards, P.A., 2005. Çevre Mühendisliğinde Temel işlemler ve süreçler, 2. baskıdan çeviren: Ülker Bakır Öğütveren, Efil Yayınevi, çeviri: 2011.
• [17] Özdemir, N.C., Sogancioglu, M., Yel, E., 2017. Waste LDPE and HDPE Washing Wastewaters Physico-Chemical Treatability with Sulphonated Polystyrene (SPS), 2nd IWA Regional International Symposium on Water, Wastewater and Environment (IWA-PPFW2017), Proceedings, 22-24 March, 2017, Izmir-Turkey.
• [18] APHA/AWWA/WEF, 2005. Standard Methods for the Examination of water and Wastewater, 21st ed. American Public Works Association/American Water Works Association/ Water Environment Federation, USA.
• [19] Casey, TJ, 2006. Unit Treatment Processes in Water and Wastewater Engineering, AQUAVARRA Research Limited, Dublin, Chapter 16, 169-183.