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. Author manuscript; available in PMC: 2019 Sep 18.
Published in final edited form as: ACS Sustain Chem Eng. 2018;6(5):6018–6031. doi: 10.1021/acssuschemeng.7b04657

Table 8:

Economics of phosphorus credits

Sr. No. Total. φI φO φt φr,products φr,pcredit ROI Payback Period
Tech. (USD) (USD/yr) (USD/yr) (USD/yr) (USD/yr) (%) (yrs)
1 0 0 0 0 0 0 0 N/A
2 12 6.05 × 107 2.57 × 107 2.31 × 106 7.96 × 106 2.52 × 107 3.5 28.4
3 33 1.41 × 108 6.18 × 107 1.46 × 107 1.82 × 107 1.15 × 108 35.7 2.8
4 32 1.54 × 108 6.34 × 107 1.62 × 107 1.85 × 107 1.77 × 108 69.9 1.4
5 33 2.78 × 108 7.73 × 107 1.77 × 107 1.90 × 107 2.Cl × 108 61.6 1.6