한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제33권4호
  • /
  • Pages.387-393
  • /
  • 2017
  • /
  • 2289-0971(pISSN)
  • /
  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지
DOI QR코드

DOI QR Code

마이크로웨이브를 이용한 잉여 슬러지 가온과 인산염 방출

Phosphorus Release from Waste Activated Sludge by Microwave Heating

  • 투고 : 2017.02.13
  • 심사 : 2017.06.19
  • 발행 : 2017.07.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

A chemical batch tests were conducted to evaluate if microwave heating enhances phosphorous release from waste activated sludge (WAS) at pH 2.5, 5, 7, 9 and 11. Polyphosphate-accumulating organisms have a unique physiological feature, which releases intracellular polyphosphate granules when they are exposed under high temperature environments. Microwave irradiation was found to encourage large amount of phosphorus release from WAS, depending on pH and temperature conditions. Most of phosphorus was released below $59^{\circ}C$ within 30 min. A marked increase in phosphorus release was observed under alkaline or acidic conditions. However, based on control tests for phosphorus release under different pH conditions without microwave heating, the largest amount of phosphorus released by microwave irradiation was found at pH 7, followed by 5, 9, 11. On the other hand, crystallization was conducted to obtain magnesium ammonium phosphate (MAP) from phosphate released by microwave heating at pH 7. X-ray diffraction analysis confirmed that the recovered crystalline materials were MAP. MAP is an environmentally friendly fertilizer, which slowly releases ammonia and phosphorus in response to the demand of plant root. Thus, the recovered MAP as a phosphate fertilizer is fully expected to play a important role in the reduction of agricultural non-point pollution.

키워드

참고문헌

  1. Ahn, J., Kim, J., and Min, S. (2016) Feasibility of Phosphorus Recovery from Biological Livestock Wastewater Treatment Plant, Journal of Korea Society on Water Environment, 32(4), 343-348. [Korean Literature] https://doi.org/10.15681/KSWE.2016.32.4.343
  2. American Public Health Association, American Water Works Association, and Water Environment Federation (APHA, AWWA, and WEF). (1989). Standard methods for the examination of water and wastewater, 17th Edn, USA.
  3. Bond, P. L., Keller, J., and Blackall, L. (1999). Anaerobic Phosphate Release from Activated Sludge with Enhaned Biological Phosphorus Removal, A possible Mechanism of Intracellular pH Control, Biotechnology and Bioengineering, 63, 507-515. https://doi.org/10.1002/(SICI)1097-0290(19990605)63:5<507::AID-BIT1>3.0.CO;2-A
  4. Dogan, I. and Sanin, F. (2009). Alkaline Solubilization and Microwave Irradiation as a Combined Sludge Disintegration and Minimization Method, Water Research, 43, 2139-2148. https://doi.org/10.1016/j.watres.2009.02.023
  5. Eskicioglu, C., Terzian, N, Kennedy, K., Droste, R., and Hamoda, M. (2007). Athermal Microwave Effects for Enhancing Digestibility of Waste Activated Sludge, Water Research, 41, 2457-2466. https://doi.org/10.1016/j.watres.2007.03.008
  6. Hirota, R., Kuroda, A., Kato, J., and Ohtake H. (2010). Bacterial Phosphate Metabolism and Its Application to Phosphorus Recovery and Industrial Bioprocesses, Journal of Bioscience and Bioengineering, 109, 423-432. https://doi.org/10.1016/j.jbiosc.2009.10.018
  7. Kashihara, H., Kang, B., Omasa, T., Honda, K., Sameshima, Y., Kuroda, A., and Ohtake, H. (2010). Electron Microscopic Analysis of Heat-Induced Leakage of Polyphosphate from a phoU Mutant of Escherichia coli, Bioscience, Biotechnology, and Biochemistry, 74, 865-868. https://doi.org/10.1271/bbb.90820
  8. Kim, M., Han, D., and Kim, D. (2015). Selective Release of Phosphorus and Nitrogen from Waste Activated Sludge with Combined Thermal and Alkali Treatment, Bioresource Technology, 190, 522-528. https://doi.org/10.1016/j.biortech.2015.01.106
  9. Kuroda, A., Takiguchi, N., Gotanda, T., Nomura, K., Kato, J., Ikeda, T., and Ohtake, H. (2002). A Simple Method to Release Polyphosphate from Activated Sludge for Phosphorus Reuse and Recycling, Biotechnology and Bioengineering, 78, 333-338. https://doi.org/10.1002/bit.10205
  10. Liao, P., Wong, W., and Lo, K. (2005). Release of Phosphorus from Sewage Sludge using Microwave Technology, Journal of Environmental Engineering and Science, 4, 77-81. https://doi.org/10.1139/s04-056
  11. Lin, L., Yuan, S., Chen, J., Xu, Z., and Lu, X. (2009). Removal of Ammonia Nitrogen in Wastewater by Microwave Radiation, Journal of Hazardous Materials, 161, 1063-1068. https://doi.org/10.1016/j.jhazmat.2008.04.053
  12. Santinelli, M., Eusebi, A. L., Santini, M., and Battistoni, P. (2013). Struvite Crystallization for Anaerobic Digested Supernatants: Influence on the Ammonia Efficiency of the Process Variables and the Chemicals Dosage Modality, Chemical Engineering Transactions, 32, 2047-2052.
  13. Seviour, R., Mino, T., and Onuki, M. (2003). The microbiology of Biological Phosphorus Removal in Activated Sludge Systems, FEMS Microbiology Reviews, 27, 99-127. https://doi.org/10.1016/S0168-6445(03)00021-4
  14. Snoeyink, V. and Jenkins, D. (1980). Water chemistry, 1st Edn, John Wiley & Sons, USA.
  15. Tchobanoglous, G., Burton, F., and Stensel, H. (2004). Wastewater engineering, treatment and reuse, 4th Edn, McGraw-Hill, Singapore, 611-629.
  16. Wingender, J., Neu, T., and Flemming, H. (1999). Microbial extracellular polymeric substances: Characterization, structure and function, 1st Edn, Springer-Verlag, Berlin, Germany, 171-200.
  17. Xu, Y., Hu, H., Liu, J., Luo, J., Qian, G., and Wang, A. (2015). pH Dependent Phosphorus Release from Waste Activated Sludge: Contributions of Phosphorus Speciation, Chemical Engineering Journal, 267, 260-265. https://doi.org/10.1016/j.cej.2015.01.037
  18. Zhang, H., Fan, W., Wang, Y., Sheng, G., Xia, C., Zeng, R., and Yu, H. (2013). Species of Phosphorus in the Extracellular Polymeric Substances of EBPR Sludge, Bioresource Technology, 142, 714-718. https://doi.org/10.1016/j.biortech.2013.05.068
  19. Zhang, M., and Kuba, T. (2014). Inhibitory Effect of Metal Ions on the Polyphosphate Release from Sewage Sludge during Thermal Treatment, Environmental Technology, 35, 1157-1164. https://doi.org/10.1080/09593330.2013.863980