Economic and Environmental Benefits of Cleaner Technology …
199
7 Cost Analysis Using ROI, CBR, cost-benefit
per liter and liter benefit per year using for ETP
and Advance Treatment Technology (MGF, RO, UF)
As shown in (Tables 1 and 2), Effluent treatment plant (ETP) the return on investment
in conventional technology (Activated sludge process) is (605.8%) and cleaner technology (MGF (Multi grade filter), RO (Reverse osmosis) and UF (Ultra filtration)
is (−2.17%) for Rs.1 investment. Comparing the two technologies, conventional
technology is gain and cleaner technology is loss and the operational and maintenance cost is very high comparing with the conventional technology cost. In terms of
cost-benefit ratio conventional technology (6.916) and cleaner technology (1.019),
leading to conventional technology showing a higher benefit. Cost-benefit per liter
in conventional technology is (0.0216) and cleaner technology is (0.393) and liters
benefit per year in conventional technology is (46.10) and cleaner technology is
(2.53). Conventional technology shows a higher value in the cost-benefit per liter.
The amount of water used is very less in cleaner technology due to the recycled water
being used only for boiler feed purpose with of 52,000,000 liter per year and ETP
the advantage are 70 Tons per year (70,000) and the water recycle is 1890 lakh liters
per year and the benefited amount is Rs. 208.88 per annum in lakhs and thus the total
benefit from the Effluent treatment plant (ETP) is Rs. 283.5 per annum in lakhs. CPU,
Cooling tower, ETP (ASP) and MGF, RO, UF is said to be a “closed-loop system”
water is recycled has an “add-on” technology and the end of recycling process from
the ETP and aeration tank the water is send to irrigate 94.77 acres of sugar cane
farming land.
8 Conventional Technology
ASP used in ETP as a secondary treatment technology in sugar industry has outcome
advantage in sludge processing and can be reused as a composting material, but on
comparing with the TNSPCB standards, after treatment the outcome exceeds the
permissible limits in parameters like BOD, COD, TDS, Sulphate, Chloride, Sodium
and oil grease high organic load, has been there since the inception of the industry
in 1980s and has led to advance technology Viability of this ASP used as an “addon” technology in this industry to screen the primary water pollutants is evident and
this whole system CPU, Cooling tower, ETP with advance technology is called has
“Closed-loop” water system technology without wasting of water or draining the
water into surface water, as shown in (Tables 1 and 2).
199
7 Cost Analysis Using ROI, CBR, cost-benefit
per liter and liter benefit per year using for ETP
and Advance Treatment Technology (MGF, RO, UF)
As shown in (Tables 1 and 2), Effluent treatment plant (ETP) the return on investment
in conventional technology (Activated sludge process) is (605.8%) and cleaner technology (MGF (Multi grade filter), RO (Reverse osmosis) and UF (Ultra filtration)
is (−2.17%) for Rs.1 investment. Comparing the two technologies, conventional
technology is gain and cleaner technology is loss and the operational and maintenance cost is very high comparing with the conventional technology cost. In terms of
cost-benefit ratio conventional technology (6.916) and cleaner technology (1.019),
leading to conventional technology showing a higher benefit. Cost-benefit per liter
in conventional technology is (0.0216) and cleaner technology is (0.393) and liters
benefit per year in conventional technology is (46.10) and cleaner technology is
(2.53). Conventional technology shows a higher value in the cost-benefit per liter.
The amount of water used is very less in cleaner technology due to the recycled water
being used only for boiler feed purpose with of 52,000,000 liter per year and ETP
the advantage are 70 Tons per year (70,000) and the water recycle is 1890 lakh liters
per year and the benefited amount is Rs. 208.88 per annum in lakhs and thus the total
benefit from the Effluent treatment plant (ETP) is Rs. 283.5 per annum in lakhs. CPU,
Cooling tower, ETP (ASP) and MGF, RO, UF is said to be a “closed-loop system”
water is recycled has an “add-on” technology and the end of recycling process from
the ETP and aeration tank the water is send to irrigate 94.77 acres of sugar cane
farming land.
8 Conventional Technology
ASP used in ETP as a secondary treatment technology in sugar industry has outcome
advantage in sludge processing and can be reused as a composting material, but on
comparing with the TNSPCB standards, after treatment the outcome exceeds the
permissible limits in parameters like BOD, COD, TDS, Sulphate, Chloride, Sodium
and oil grease high organic load, has been there since the inception of the industry
in 1980s and has led to advance technology Viability of this ASP used as an “addon” technology in this industry to screen the primary water pollutants is evident and
this whole system CPU, Cooling tower, ETP with advance technology is called has
“Closed-loop” water system technology without wasting of water or draining the
water into surface water, as shown in (Tables 1 and 2).