|
The
total water requirement for the industries was around 11 km3/year
for the base year 1996-97. It was observed that the pulp and paper, integrated
iron & steel and textile sub sectors account for approximately 60% of the
water requirement of the industry. For future projections, water requirement
for each sub sector has been separately calculated. The overall water
requirements for the year 2010, 2025 and 2050 have been estimated as 37, 67 and
81 km3 respectively. It needs to be stated here that till 1990s, Indian
economy was on a low growth path.
Water Requirements for Different Industries for 2010,
2025, 2050
|
Category
of Industry
|
Production
|
Water Requirement Per Unit
of Production (m3)
1997-2010
|
Water Requirement km3
|
|
Year 1997 (1000 Tons)
|
Growth Rate %
|
2010
|
2025
|
2050
|
|
Integrated
iron & steel
|
119,390
|
9
|
22
|
5.8377
|
5.7393
|
10.941
|
|
Smelters
|
174
|
5.8
|
82.5
|
0.0241395
|
0.03179792
|
0.043008
|
|
Petrochemicals
& Refinery
|
1,255
|
3
|
17
|
0.03061003
|
0.035536
|
0.049065
|
|
Chemicals-
Caustic soda
|
1,459.30
|
21.40
|
5.5
|
0.010200025
|
0.01036575
|
0.01213695
|
|
Textile
& Jute
|
24,730.20
|
11.57
|
200
|
19.01878
|
36.517893
|
35.192625
|
|
Cement
|
76,000
|
11
|
5.5
|
1.2045
|
1.3825
|
1.8725
|
|
Fertilizer
|
11,155.30
|
8.00
|
16.7
|
0.6309594
|
1.025686615
|
1.19274795
|
|
Leather
Products
|
912.5
|
5.8
|
40
|
0.08765
|
0.0899725
|
0.1428975
|
|
Rubber
|
403.24
|
5.75
|
6.6
|
0.0042999
|
0.005634468
|
0.006357824
|
|
Food
Processing
|
96,450
|
14
|
11
|
5.56765
|
8.043034
|
8.3194496
|
|
Inorganic
chemicals
|
2,200
|
7
|
200
|
1.6
|
3.346
|
3.0076
|
|
Sugar
|
14,500
|
12
|
2.2
|
0.07117
|
0.3344
|
0.31845
|
|
Pharmaceuticals
|
4,190
|
12
|
22
|
0.18414
|
0.243012
|
0.3434
|
|
Distillery
|
1,790.80
|
4.20
|
22
|
0.06731098
|
0.0980012
|
0.116788
|
|
Pesticides
|
86
|
7.3
|
6.5
|
0.001989975
|
0.004081275
|
0.0057996
|
|
Paper
& Pulp
|
3,100
|
4
|
280
|
2.898
|
10.18888
|
18.9053
|
|
General
Engineering
|
5,779
|
12
|
2.2
|
0.0236588
|
0.0278157
|
0.0556314
|
|
|
Average
|
9.07
|
Total
|
37.26276
|
61.12383
|
80.52476
|
|