Techno-commercial comparison for 4.5 MLD plant
| Description . | Polymeric membranes . | Ceramic membranes . |
|---|---|---|
| UF feed flow rate (L/h) | 205,200 | |
| Flux (approx.) in L/(m2/h) | 53.4 | 150 |
| Net area of filtration (calculated from gross area and recovery rate for ceramics) in m2 | 3,840 | 1,410 |
| CAPEX | ||
| Estimated cost/m2 (INR) | 1,100 | 9,000 |
| Initial CAPEX of membranes (INR) | 4,224,000 | 12,692,784 |
| Additional CAPEX for tube settler (INR) | 1,931,079 | 0 |
| OPEX | ||
| Membrane replacing cost in INR (considering polymeric replacement every 8th year) | 12,672,000 | 0 |
| Maintenance and manpower cost in INR (assuming 10% membrane replacement cost) | 1,267,200 | 0 |
| 25-year cost for CEB chemicals (INR) | 12,775,000 | 12,372,500 |
| 25-year estimated power cost (INR) | 33,443,000 | 35,115,150 |
| Calculated recovery rate (%) | 92.4 | 97.0 |
| Indicative water savings for 25 years in INR (Delhi water costs, i.e. approx. INR 20/m3 * 103 * water saved in MLD due to higher recovery in ceramic membranes) | 0.00 | −41,343,696 |
| Total 25-year OPEX cost (INR) | 60,157,200 | 6,143,954 |
| Net present value of OPEX calculated for 25 years at 10% interest rate (INR) | 17,019,847 | 2,230,757 |
| CAPEX+NPV of OPEX (INR) | 23,174,926 | 14,923,540 |
| Ceramic plant lower by approx. (INR) | 8,251,386 | |
| Description . | Polymeric membranes . | Ceramic membranes . |
|---|---|---|
| UF feed flow rate (L/h) | 205,200 | |
| Flux (approx.) in L/(m2/h) | 53.4 | 150 |
| Net area of filtration (calculated from gross area and recovery rate for ceramics) in m2 | 3,840 | 1,410 |
| CAPEX | ||
| Estimated cost/m2 (INR) | 1,100 | 9,000 |
| Initial CAPEX of membranes (INR) | 4,224,000 | 12,692,784 |
| Additional CAPEX for tube settler (INR) | 1,931,079 | 0 |
| OPEX | ||
| Membrane replacing cost in INR (considering polymeric replacement every 8th year) | 12,672,000 | 0 |
| Maintenance and manpower cost in INR (assuming 10% membrane replacement cost) | 1,267,200 | 0 |
| 25-year cost for CEB chemicals (INR) | 12,775,000 | 12,372,500 |
| 25-year estimated power cost (INR) | 33,443,000 | 35,115,150 |
| Calculated recovery rate (%) | 92.4 | 97.0 |
| Indicative water savings for 25 years in INR (Delhi water costs, i.e. approx. INR 20/m3 * 103 * water saved in MLD due to higher recovery in ceramic membranes) | 0.00 | −41,343,696 |
| Total 25-year OPEX cost (INR) | 60,157,200 | 6,143,954 |
| Net present value of OPEX calculated for 25 years at 10% interest rate (INR) | 17,019,847 | 2,230,757 |
| CAPEX+NPV of OPEX (INR) | 23,174,926 | 14,923,540 |
| Ceramic plant lower by approx. (INR) | 8,251,386 | |