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Table 2 Key indicators of Scenarios 2 and 3

From: Implementing circular economy concept by converting cassava pulp and wastewater to biogas for sustainable production in starch industry

Key indicator

Unit

Scenario 2

Scenario 3

Discount rate

%

10

10

Investment cost (First year)

Million USD

2.24

8.65

Net present value

Million USD

1.98

6.14

Internal rate of return

%

18

31

Payback period

Year

5.03

4.37