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Table 2 Location of included studies

From: Effectiveness of struvite precipitation and ammonia stripping for recovery of phosphorus and nitrogen from anaerobic digestate: a systematic review

Continent Country Number of studies
Asia China 13
Israel 1
South Korea 2
Australasia Australia 1
Europe Denmark 1
Europe France 1
Spain 3
Sweden 1
North America Canada 2
USA 2
South America Brazil 1
Colombia 1
No location stated   1