Struvite recovery is an ideal way to simultaneously recover phosphate (P i ) 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 m 3 /day in Kobe City. The struvite recovery plant has a capacity of treating digested sludge of 239 m 3 /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 P i , 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.
CITATION STYLE
Koga, D. (2018). Struvite recovery from digested sewage sludge. In Phosphorus Recovery and Recycling (pp. 255–264). Springer Singapore. https://doi.org/10.1007/978-981-10-8031-9_17
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