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Table 2 Waste streams used for recovery of C, E, P and/or N (n = 344)

From: What evidence exists on ecotechnologies for recycling carbon and nutrients from domestic wastewater? A systematic map

Waste stream C E P N C & E P & N E & P E & N C & P E, P & N C, P & N E, C & P E, C, P & N Total
Mixed wastewater 2 44 18    44 1 2   49 1   1 162
Sludge 3 43 6   4 1 4 2   5 18 2 4 92
Urine   1 1 6   18     2     28
Sludge liquid phase 1   3 2   11     6     23
Several inputs   2 3 4   1 1   1 6 1   1 20
Other   4 6 1        2    13
Blackwater            2   2 4
Greywater       1     1     2
Total 6 94 37 13 4 76 6 4 1 69 24 2 8 344
  1. Studies including both recovery and reuse are not presented (n = 22)