Central
Pollution Control Board (CPCB) inspects industries including steel plants under
Environment Surveillance Squad (ESS) on regular basis. Based on observations in
inspection reports suitable actions are taken. Directions under Section 18 (1)
(b) of Air Act, 1981 and Water Act, 1974 are issued to concerned State
Pollution Control Board for M/s. Jindal Steel &
Power Ltd., Raigarh, Chattissgarh and M/s.
Indian Iron & Steel Co. Ltd., Burnpur,West Bengal and Directions
under Section 5 of E (P) Act, 1986 was issued to M/s. Bokaro Steel Plant,
Bokaro Steel City, Jharkhand and Rourkela Steel
Plant, Orissa.
Almost
all major and integrated steel plants have installed various pollution control
mechanism in their respective plants. The details of the steel plants where
pollution control mechanisms have been installed during the last three years
are given below.
1.
Steel
Authority India Ltd. (SAIL)
Pollution
control devices/mechanisms have been installed and are operating effectively in
all the steel plants of SAIL. Regular monitoring of environmental parameters as
per the statutory requirements is being done at these plants.
SAIL is spending
about Rs. 5000 Crores on various pollution control schemes under the ongoing
expansion cum modernization of plants. Some of the major initiatives taken in
this regard are as under:-
·
Installation of 7 mtr tall Coke Oven Battery with coke dry
quenching system and land based pushing emission control system.
·
De-sulphurisation plant for treatment of Sulphur in Coke Oven
Gas.
·
New sinter plant with ESPs for process exhaust and system for
space dust extraction along with waste heat recovery from Sinter Coolers.
·
Installation of High capacity (4060 m3) state of the art blast
furnaces.
·
Installation of top pressure recovery turbines at the blast
furnaces.
·
Installation of gas based power plant.
2. Rashtriya Ispat Nigam
Limited, Visakhapatnam, Andhra Pradesh.
i)
High temperature membrane bag filters in CRMP 1, 2, 3, 4 (Kilns 1, 2
& 3 are complete).
ii)
Electronic controllers in ESPs of TPP boilers no.1, 2&5.
iii)
Nitrification – de-nitrification of MBC effluents for control of
ammonical nitrogen.
iv)
Replacement of compressors working on ODS with non-ODS/CWP – Chillers.
v)
Replacement
of ODS with non-ODS refrigeration units of ASP.
vi)
Coke
dry quenching for CDCP – 4 using the waste heat to generate 14 MW power.
vii)
Appikonda
waste water treatment water plant under zero water discharge scheme. An amount
of Rs.182 Crores was spent on installing the above facilities.
3.
Tata
Steel Limited, Jamshedpur, Jharkhand.
Pollution
control projects implemented at Jamshedpur Steel Works under 2.9 MTPA
expansion project (e.g. Raw material, handling, Pellet Plant, Coke Oven Battery-
No. 10 & 11, Blast Furnace, Lime Kilns No. 8 & 9, LD3, Ladle Furnaces,
Thin Slab Caster & Rolling since Nov. 2011.
A
central waste water treatment plant with Reverse Osmosis is being commissioned
to treat and reuse the recovered treated effluent from works drain. Once
commissioned, the water intake and effluent discharge would further improve.
On
line blast furnace slag granulation was commissioned at he cast house of new 1
blast furnace in 2012. Mill scale de-oiling facility was commissioned recently
to ensure maximum utilization at Sinter plants.
Over
Rs. 689 Crores were the expenditure on Environmental projects during last three
years (2010-11 to 2012-13).
4.
JSW
Steel Vijayanagar Works, Torangallu, Bellary, Karnataka.
JSW Steel
Vijayanagar Works has taken the following measures with respect to environment
control:-
-
Installed
181 bag filters, 18 electro-static precipitators, 24 scrubbers and 518
sprinklers and dust suppression system at 160 junction houses for air pollution
control.
-
Installed
18 effluent plants and 5 sewage treatment plants to minimize water demand and
reduce pollution.
-
Extensive
water recirculation systems have been provided to recycle 98% of water.
-
JSW
has commissioned 12 recycling schemes through cascading and treatment
techniques to recover nearly 50000 m3/ day of wastewater.
-
Gainful
utilization of 83% of the solid waste generated.
-
100%
use of dust and sludge from air pollution and water pollution control systems
through micro pellet and mill scale briquette plants.
-
Total
investment of over Rs.2000.00 crores has been incurred for installation of
pollution control mechanisms.
-
Planted
over 1.5 Million trees covering an area of 1300 acres.
5. Jindal
Steel and Power Limited, Raigarh, Chhattisgarh.
|
List
of Air Pollution Control Devices installed in last three years at JSPL,
Raigarh
|
|
|
Unit
|
Location
|
Pollution
control system
|
Gas
volume
|
Outlet
dust load
|
Approximate
Capital Cost (Rs)
Incurred
|
|
|
SMS-II
|
Electric
Arc Furnace-I
|
Bag
filter
|
1440000
m3/hr
|
<
50 mg/Nm3
|
10600
lacs
|
|
|
PP -
I
|
Power
Plant-I (WHRB-3)
|
Electrostatic
precipitator
|
180000
m3/hr
|
<
50 mg/Nm3
|
185
lacs
|
|
|
Blast
Furnace-I
|
Ground
Hopper
|
Bag
filter
|
25000
m3/hr
|
<
50 mg/Nm3
|
24
lacs
|
|
|
DRI -
I
|
Product
hopper at G13 - G 14
|
Bag
filter
|
30000
m3/hr
|
<
50 mg/Nm3
|
06
lacs
|
|
|
Sinter
Plant
|
Raw
material Handling
|
Bag
filter
|
160000
m3/hr
|
<
50 mg/Nm3
|
185
lacs
|
|
|
SMS -
II
|
Electric
Arc Furnace-1 & 2 Secondary
|
Bag
filter
|
500000
m3/hr
|
<
50 mg/Nm3
|
500
lacs
|
|
|
Ground
Hopper
|
Bag
filter
|
335000
m3/hr
|
<
50 mg/Nm3
|
200
lacs
|
|
|
SMS-III
|
FAFA
|
Bag
filter
|
30000
m3/hr
|
<
50 mg/Nm3
|
12
lacs
|
|
|
PP -
I
|
Power
Plant – I (WHRB 4)
|
Electrostatic
precipitator
|
Flow
– 369000 m3/hr
|
<
50 mg/Nm3
|
185
lacs
|
|
|
****
NSK/DB