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Factors Affecting Efficiency of Synthetic Polymers in Flocculation

Yıl 2022, Cilt: 9 Sayı: 2, 961 - 971, 31.12.2022
https://doi.org/10.35193/bseufbd.1146333

Öz

Polymers are effective products widely used in the solid-liquid separation of industrial wastes. Making solid-liquid separation in the wastes ensures that the wastes can be stored more regularly and efficiently, while removing the high water content from the landfill makes the accumulated wastes not a threat to the environment and reduces the waste volume by a significant amount, thus reducing the storage costs. Polymer performance is measured by turbidity tests. Many factors affect the effectiveness of the polymers used in solid-liquid separation, such as mixing speed, mixing time, settling time of slurry, temperature, and storage time which is the time elapsed between the use of the solid polymer after it has been prepared as a liquid solution. In this experimental study, the waste obtained from the tailings dam of the Kütahya Espey boron enrichment (concentrator) plant in its natural form, representing an industrial waste, was first dried, and then a waste ground suspension was prepared by taking the water/soil ratio in the tailings dam into account. The factors affecting the polymer performance in solid-liquid separation were determined by mixing four anionic polymers with different molecular weights into the prepared soil suspension. According to the findings, the ideal mixing speed has been determined to be 200-250 rpm, the mixing time as 1-3 minutes, and the settling time of the suspension between 2-4 minutes. Also, the suspension temperature was found to be a factor that could affect the turbidity and flocculation according to the polymer type. Moreover, the polymer solution can be used for 7 days without a decrease in its effectiveness, 24 hours after it is prepared.

Kaynakça

  • Adiansyah, J.S., Rosano, M.,Vink, S.,& Keir,G. (2015). A framework for a sustainable approach to mine tailings management: disposal strategies, Journal of Cleaner Production, 1081050–1062, https://doi.org/10.1016/j.jclepro.2015.07.139.
  • World Information Service on Energy. (2019). WISE-Uranium Project, Chronology of Major Tailings Dam Failures. https://www.wise-uranium.org/mdaf.html. (Accessed 26 August 2022).
  • Maurer, B. W., Gustafson, A. C., Bhatia, S. K., & Palomino, A. M. (2012). Geotextile dewatering of flocculated, fiber reinforced fly-ash slurry. Fuel, 97, 411-417.
  • Cetin, D., Sengul, T., Bhatia, S. K., & Khachan, M. M. (2017). Effect of polymer and fiber usage on dewatering and compressibility behavior of fly ash slurries. Marine Georesources & Geotechnology, 35(5), 678-687.
  • Sengul, T., & Bulut, A. (2022). Determination of the factors affecting the efficiency of the polymer in solid-liquid separation with synthetic polymers. Arab J Geosci 15, 858 https://doi.org/10.1007/s12517-022-10108-3
  • Satyamurthy, R. & Bhatia, S. K. (2009). Effect of polymer conditioning on dewatering characteristics of fine sediment slurry using geotextiles. Geosynthetics International, 16(2), 83-96. https://doi:10.1680/gein.2009.16.2.83
  • Sher, F., Malik, A., & Liu, H.(2013). Industrial polymer effluent treatment by chemical coagulation and flocculation, Journal of Environmental Chemical Engineering, 1(4), 684-689, https://doi.org/10.1016/j.jece.2013.07.003.
  • Tassinari, B., Conaghan, S., Freeland, B., & Marison, I. W. (2015). Application of turbidity meters for the quantitative analysis of flocculation in a jar test apparatus. Journal of Environmental Engineering, 141(9), https://dx.doi.org/10.1061/(ASCE)EE.1943-7870.0000940
  • ASTM D 6913-04. (2009). Standard test methods for particle-size distribution (gradation) of soils using sieve analysis. Annual Book of ASTM Standards.
  • [ASTM D7928-17. (2017). Standard test method for particle-size distribution (gradation) of fine-grained soils using the sedimentation (hydrometer) analysis. Annual Book of ASTM Standards.
  • ASTM D2035-19. (2019). Standard practice for coagulation - flocculation jar test of water. West Conshohocken, PA, United States. ASTM International. http://www.astm.org.
  • Zhu, X., Reed, B. E., Lin, W., Carriere, P. E. & Roark, G. A. R. Y. (1997). Investigation of emulsified oil wastewater treatment with polymers. Separation Science and Technology, 32(13), 2173-2187.
  • Oruç, F. & Sabah, E. (2006). Effect of mixing conditions on flocculation performance of fine coal tailings. XXIII. International Mineral Processing Congress, 3-8 September 2006, Istanbul-Turkey.
  • Spritzer, J. M., Khachan, M. M. &Bhatia, S. K. (2015). Influence of synthetic and natural fibers on dewatering rate and shear strength of slurries in geotextile tube applications. International Journalof Geosynthetics and Ground Engineering,1(3), 26.
  • Fatema, N., Bhatia, S. K. & Grady, W. F. (2018). Comparison of 1-D and 2-D geotextile dewatering tests with fly ash slurry. In Proceedings of the 11th International Conference on Geosythetics, 16-21. September 2018, Seoul, Korea.

Sentetik Polimerlerin Flokülasyonda Verimliliğini Etkileyen Faktörler

Yıl 2022, Cilt: 9 Sayı: 2, 961 - 971, 31.12.2022
https://doi.org/10.35193/bseufbd.1146333

Öz

Polimerler endüstriyel atıkların katı sıvı ayrımında yaygın bir şekilde kullanılan etkili ürünlerdir. Atıklarda katı-sıvı ayrımının yapılması, atıkların daha düzenli ve kolay depolanabilmesini sağlamasının yanında, yüksek su içeriğinin depolama sahasından uzaklaştırılması depolanan atıkları çevreye tehdit olmaktan çıkararak atık hacmini önemli bir miktarda düşürerek depolanma maliyetlerini azaltır. Polimer performansı bulanıklık deneyleri ile ölçülmektedir. Katı sıvı ayrımında kullanılan polimerlerin etkinliğini, karıştırma hızı, karıştırma süresi, çökelme süresi, sıcaklık ve katı formdaki polimerin sıvı çözelti halinde hazırlandıktan sonra kullanılmaları arasında geçen depolama süresi gibi birçok faktör etkilemektedir. Bu deneysel çalışmada, endüstriyel bir atığı temsilen Kütahya Espey bor zenginleştirme (konsantratör) tesisinin atık barajından doğal haliyle temin edilen atık önce kurutulmuş daha sonra atık barajındaki su/zemin oranı dikkate alınarak atık zemin süspansiyonu hazırlanmıştır. Hazırlanan atık zemin süspansiyonuna moleküler ağırlıkları farklı dört anyonik polimer belirli bir oranda karıştırılarak katı-sıvı ayrımında polimer performansını etkileyen faktörler belirlenmiştir. Elde edilen bulgulara göre, ideal karıştırma hızının 200-250 dev/dk, karıştırma süresinin 1-3 dakika, süspansiyonun çökelme süresinin 2-4 dk aralığında olduğu, polimer türüne göre süspansiyon sıcaklığının bulanıklık ve flokülasyonu etkileyebilecek bir faktör olduğu, polimer çözeltisi hazırlandıktan 24 saat sonra 7 gün süreyle etkinliğinde bir azalma olmadan kullanılabileceği belirlenmiştir.

Kaynakça

  • Adiansyah, J.S., Rosano, M.,Vink, S.,& Keir,G. (2015). A framework for a sustainable approach to mine tailings management: disposal strategies, Journal of Cleaner Production, 1081050–1062, https://doi.org/10.1016/j.jclepro.2015.07.139.
  • World Information Service on Energy. (2019). WISE-Uranium Project, Chronology of Major Tailings Dam Failures. https://www.wise-uranium.org/mdaf.html. (Accessed 26 August 2022).
  • Maurer, B. W., Gustafson, A. C., Bhatia, S. K., & Palomino, A. M. (2012). Geotextile dewatering of flocculated, fiber reinforced fly-ash slurry. Fuel, 97, 411-417.
  • Cetin, D., Sengul, T., Bhatia, S. K., & Khachan, M. M. (2017). Effect of polymer and fiber usage on dewatering and compressibility behavior of fly ash slurries. Marine Georesources & Geotechnology, 35(5), 678-687.
  • Sengul, T., & Bulut, A. (2022). Determination of the factors affecting the efficiency of the polymer in solid-liquid separation with synthetic polymers. Arab J Geosci 15, 858 https://doi.org/10.1007/s12517-022-10108-3
  • Satyamurthy, R. & Bhatia, S. K. (2009). Effect of polymer conditioning on dewatering characteristics of fine sediment slurry using geotextiles. Geosynthetics International, 16(2), 83-96. https://doi:10.1680/gein.2009.16.2.83
  • Sher, F., Malik, A., & Liu, H.(2013). Industrial polymer effluent treatment by chemical coagulation and flocculation, Journal of Environmental Chemical Engineering, 1(4), 684-689, https://doi.org/10.1016/j.jece.2013.07.003.
  • Tassinari, B., Conaghan, S., Freeland, B., & Marison, I. W. (2015). Application of turbidity meters for the quantitative analysis of flocculation in a jar test apparatus. Journal of Environmental Engineering, 141(9), https://dx.doi.org/10.1061/(ASCE)EE.1943-7870.0000940
  • ASTM D 6913-04. (2009). Standard test methods for particle-size distribution (gradation) of soils using sieve analysis. Annual Book of ASTM Standards.
  • [ASTM D7928-17. (2017). Standard test method for particle-size distribution (gradation) of fine-grained soils using the sedimentation (hydrometer) analysis. Annual Book of ASTM Standards.
  • ASTM D2035-19. (2019). Standard practice for coagulation - flocculation jar test of water. West Conshohocken, PA, United States. ASTM International. http://www.astm.org.
  • Zhu, X., Reed, B. E., Lin, W., Carriere, P. E. & Roark, G. A. R. Y. (1997). Investigation of emulsified oil wastewater treatment with polymers. Separation Science and Technology, 32(13), 2173-2187.
  • Oruç, F. & Sabah, E. (2006). Effect of mixing conditions on flocculation performance of fine coal tailings. XXIII. International Mineral Processing Congress, 3-8 September 2006, Istanbul-Turkey.
  • Spritzer, J. M., Khachan, M. M. &Bhatia, S. K. (2015). Influence of synthetic and natural fibers on dewatering rate and shear strength of slurries in geotextile tube applications. International Journalof Geosynthetics and Ground Engineering,1(3), 26.
  • Fatema, N., Bhatia, S. K. & Grady, W. F. (2018). Comparison of 1-D and 2-D geotextile dewatering tests with fly ash slurry. In Proceedings of the 11th International Conference on Geosythetics, 16-21. September 2018, Seoul, Korea.
Toplam 15 adet kaynakça vardır.

Ayrıntılar

Birincil Dil Türkçe
Konular Mühendislik
Bölüm Makaleler
Yazarlar

Noyan Akray Bu kişi benim 0000-0001-6640-4727

Tayfun Şengül 0000-0003-3473-7724

Yayımlanma Tarihi 31 Aralık 2022
Gönderilme Tarihi 21 Temmuz 2022
Kabul Tarihi 8 Eylül 2022
Yayımlandığı Sayı Yıl 2022 Cilt: 9 Sayı: 2

Kaynak Göster

APA Akray, N., & Şengül, T. (2022). Sentetik Polimerlerin Flokülasyonda Verimliliğini Etkileyen Faktörler. Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi, 9(2), 961-971. https://doi.org/10.35193/bseufbd.1146333