Cost
Reduction Analysis: Cold
Bleach Rinse Water Reuse
Many textile bleaching operations have counter flow washers for rinsing
of post bleached fabric.
After a
hot rinse, a cold rinse is used as a final rinsing step. Many operations
control flow for both the hot and cold rinse make-up waters.
Average
washers discharge the contaminated cold rinse water to a wastewater
system at 25 gallons per minute.
The EnviroSep
Fluid Recovery System cleans the wastewater recovering 90% of the water
for reuse in the washer or plant hot water system.
System
Parameters
- 90%
Recovery
- 82%
Boiler Efficiency
- 70°F
Incoming Water Temp
- 110°F
Wastewater Temp w/ 10°F
Annual
Costs
Power
$7,520
Membrane Replacemt.
(assuming 3yr. life) $4,200
Prefilters $2,978
Cleaning $1,260
Operation & Maint. $3,120
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Annual
Savings
Water
$13,068
Fuel $19,425
Wastewater $27,783
Total Savings $60,816
|
Total
Costs $19,078
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Net
Annual Savings: = $41,738
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Other
Cost Reduction Analysis examples include...
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