Apparel Online India Magazine July 1st Issue 2018 | Page 15

SUSTAINABILITY
the company was able to run the dye
house for 20 days extra in a year with
the same water being used earlier.
Treat garments
like your baby
Bulk dispensing for
dyes & chemicals
For bulk dispensing of dyes &
chemicals, an automated selection
system of dyes and chemical helped
in averting unwanted spillage,
controlling it up to 2 per cent. Through
this system, the water consumption
for the dyes & chemicals dissolved
only 50 per cent when compared to
manual handling, which many of the
dye houses are even using today.
Wood boiler to fully
atomized coal boiler &
fuel handling system/
Modification of
mechanical evaporator
With the use of fully atomized coal
boiler & fuel handling system, the dye
house was able to save 15,000 tonnes
of wood consumption per year. The
fully automatic feeding system helped
to improve 10 per cent efficiency while
fluctuation in the temperature was
avoided which helped in minimising
the unutilised energy in the
processing/finishing area.
Modification of mechanical evaporator
helped the company save on steam,
coal and power consumption. Earlier
steam consumption per day was
56,000 kg. which later remained
42,000 kg. Meanwhile, the per day
coal consumption which was 11,429
kg, came down to 8,571 kg per day,
hence resulting in every day saving
of Rs. 13,575. There was a big saving
on power consumption too, as earlier
per day consumption was 1600 units,
which later came down to using just
1200 units per day. With an average
cost saving of Rs. 7.15 per unit, the
company was able to save Rs. 2,860
per day. The total saving per year was
of more than Rs. 51 lakh.
Regarding Effluent Water Recovery
and Reuse, the company is using
best eco-friendly techniques like
Regarding Effluent Water Recovery and Reuse, the company is using best eco- friendly techniques like
anaerobic and ozone treatment for colour removals to reduce the solid waste
ESSENTIALS
By using 1 MW
of solar and wind
plant energy,
the company
could get
12,000 units per
day of energy.
The company
used biogas
for running its
canteen.
anaerobic and ozone treatment for
colour removals to reduce the solid
waste. It is following three stages of
reverse osmosis with micro-filtration
system for best water recovery.
For better salt recovery it is having
four-stage multiple effect evaporator
with crystallizer. About 80 per cent of
Glauber’s salt (decahydrate sodium
sulphate) is being recovered and
reused on a regular basis. Forced
circulation evaporator is incorporated
to increase the efficiency and also to
reduce the final waste.
Besides these major initiatives, there
were many small but very important
points that were taken care of by good
housekeeping and waste control, and
which ultimately helped in plugging
leakages, stopping unnecessary
spillages from continuous running
taps, avoiding the overflow of
overhead tanks, etc. Regular energy
and waste audits also helped the
company to become more sustainable-
friendly, thus increasing on savings.
One such example of energy audit
showed that the air used in a dye
house finishing department for
cleaning purpose has been reduced by
50 per cent by adding just a reducer at
the edge of the cleaning hose nozzle,
which could save 50 per cent of the air
which was being wasted. Through this
small intervention, the company saved
around