An in situ system for recycling of Batching plant wastewater installed at the Mahindra Splendour site resulted in reuse of at least 75% of waste water generated within site for construction purposes.
Auto Sector, Kandivli
AS, Kandivli replaced all 25 year old underground Municipal water lines with overhead lines totaling to 1500 meter, upgradation of effluent treatment plant (ETP) to recycle Effluent for gardening & toilet flushing, Timer operated auto electric valve for pretreatment tanks, saving 8 KL/day, recycling & reuse of overflowing water from rinsing tank to degreasing tank at PT line in Body PU saving 2400 KL/Annum of municipal water, level operated auto valve at steelyard water tank to avoid overflow, Occupancy sensor at canteen dish washing area to avoid continuous flow of water, replacing old underground pipelines with over head pipe line, remote auto operation of water pump to avoid overflow of pretreatment tank, rain water harvesting at utility cooling pond, In-house fabrication of heat exchanger and magnetic conditioner for cooling towers to enable use bore water instead of municipal water and Recycling of used coolant water.
The Auto Sector Kandivli plant used to consume nearly 300,000 m3 of water annually. 35% of which came from the municipality while the rest was drawn from bore wells.
Last year the plant declared a 'War for Water Conservation'. Detailed water audits were undertaken and ground water leakages were eliminated through retrofitting at marginal capital cost. These simple measures saved 12% of raw water. Other similar water conservation initiatives resulted in a cumulative saving of 54,750 m3 of water per annum.
Auto Sector, Zaheerabad
The Auto Sector Zaheerabad plant, located amidst an arid landscape, undertook a major water conservation initiative comprising of rain water harvesting, water recycling and tree plantation resulting in consistent water supply for the plant and INR 12.1 million worth of annual saving in costs. More importantly, this has contributed to priceless environmental benefits like nesting of migratory birds, enhanced ground water levels from 450 ft to 230 ft. and even reduced the ambient temperature of the vicinity by 20o C.
Auto Sector, Nashik
AS, Nashik has adopted the 3R (Reuse, Reduce, Recycle) approach for efficient water management. Among the numerous water conservation initiatives undertaken were:
Water Saving Project Implemented in 2009-10
Annual Water Savings
m3
INR
Replacing Scissor make taps by Goldline tap
with orifice in shop toilets and canteen.
30,534
473,000
Treated water connected to all toilets
15,000
233,000
Treated water use for paint shop coagulation
top up purpose
11,900
184,000
Zero water leakage plant audit started shopwise
6,000
93,000
Use of new degasser tower for DI water generation
5,400
83,700
Reduction in water consumption by commissioning of
Dish washing machine in main canteen and Replacing Scissor make taps by Goldline tap with orifice in
canteen.
5,049
78,000
Spray ring operation on skid present signal
2,700
81,000
Fire hydrant post nozzle reducer for trial
1,020
15,810
Use of industrial water storage facility to use rain water
for DM plant
800
12,400
Modelwise windshield water filling autogun introduced
110
1,700
Two Wheelers, Pithampur
MTWL, Pithampur is located in a region facing drastic reduction of ground-water reserves. Moreover the nature of the soil does not facilitate water to percolate to underground aquifers. Artificial ground water recharging techniques involving construction of 30 vertical shafts, excavation of contour trenches, construction of stop dam for percolation tank and bore well and open well recharging through surface run-off and roof top water harvesting were implemented. The outcome – a net surplus ground water of 4,348.9 lac litre per annum
Farm Equipment Sector, Nagpur
FES Nagpur implemented various water conservation ideas like connecting all overhead tanks to a similar pump and installing automatic water level sensors for them, plugging leakages and bringing the supply pipes above ground, utilizing 100% of the ETP water, daily monitoring of area wise consumption for administrative control and conducting awareness camps, placing slogans, posters etc. These concerted efforts reduced specific water consumption from 3.08 KL / Eq. Tractor in FY 09 to 1.75 KL / Eq. Tractor in FY 10. This not only reduced the operational cost by INR 26 / Tractor but also brought down the total cost of water by INR 1,040,000 These initiatives were recognised at the national level as the plant won the CII water efficiency award.
All Farm division
plants are zero discharge plants
and ensure 100%
use of ETP water
by recycling.
