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Struvite Recovery from Digested Sewage Sludge

  • Daisuke KogaEmail author
Chapter

Abstract

Struvite recovery is an ideal way to simultaneously recover phosphate (Pi) and ammonia from digested sludge. A full-scale plant to recover struvite directly from digested sludge was implemented at Higashinada Wastewater Treatment Plant (WWTP) having the sewage treatment capacity of 241,500 m3/day in Kobe City. The struvite recovery plant has a capacity of treating digested sludge of 239 m3/day, which is equivalent to a quarter of digested sludge generated at the WWTP. On average, it can recover approximately 40 and 90% of total P and soluble Pi, respectively, from digested sludge. The struvite recovery could reduce the volume of dewatered sludge by 3.3% on average and prevent struvite-scaling problems in the sludge treatment process. Recovered struvite has been registered as a chemical fertilizer and distributed to the Kobe area through fertilizer companies.

Keywords

Struvite recovery Sludge dewatering Anaerobic digestion Chemical fertilizer 

References

  1. Abe S, Muro S (1995) The grade-up of wastewater treatment plants in Fukuoka by the development of struvite recovery technology. J Jpn Sew Works Assoc 32, 389 (in Japanese)Google Scholar
  2. Kato K, Muroya N (2005) Study on phosphorus balance in a municipal wastewater treatment plant. J Ind Water 98:1152–1161. (in Japanese)Google Scholar
  3. Koga D, Hagino T (2015) Technology for phosphorus removal and recovery from digested sewage sludge. Ebara Eng Rev 249Google Scholar
  4. Koga D, Hagino T (2016) Technology for high efficiency phosphorus removal and recovery from digested sewage sludge. Environ Sol Technol 15(3) (in Japanese)Google Scholar
  5. Shimamura K, Ishikawa H (2009) A phosphorus recovery process from digested sewage sludge. Environ Sol Technol 8 (1) (in Japanese)Google Scholar
  6. Shimamura K, Mizuoka A (2007) Development of a novel process for recovering phosphorus from anaerobically digested sludge using a crystallization reactor. Ebara Eng Rev (215)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Engineering and Development Division, Swing CorporationTokyoJapan

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