bs sponge private limited - India Environment Portal
bs sponge private limited - India Environment Portal
bs sponge private limited - India Environment Portal
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B.S. SPONGE PRIVATE LIMITED<br />
Village: Taraimal, Tehsil: Gharghoda, District: Raigarh, (C.G.)<br />
REIA Report for the Proposed Mini Integrated Steel Plant<br />
Chapter – 4<br />
suction hoods, bag filters etc . The outlet dust emissions in the exhaust gases will be less<br />
than 50 mg/Nm 3 . The treated gases will be discharged into the atmosphere through stacks<br />
of 30 m height (2 nos).<br />
The waste flue gases from AFBC boiler will pass through an Electrostatic Precipitator<br />
(ESP) to bring down the particulate matter to less than 50 mg/Nm 3 and will be let out into<br />
the atmosphere through a stack of 72 m height for effective dispersion of emissions into<br />
the atmosphere.<br />
The predicted max. incremental rise in SPM concentrations (24 hourly) will be 0. 6µg/m 3 at<br />
a distance of 1100 m from the origin stack in the down wind direction over the baseline<br />
concentrations.<br />
The predicted max. incremental rise in SO 2 concentrations (24 hourly) will be 8.9 µg/m 3 at<br />
a distance of 1100 m from the origin stack in the down wind direction over the baseline<br />
concentrations.<br />
The predicted max. incremental rise in NOx concentrations (24 hourly) will be 4.7 µg/m 3<br />
at a distance of 1100 m from the origin stack in the down wind direction over the baseline<br />
concentrations.<br />
The net resultant concentrations (Maximum baseline conc. + predicted incremental rise in<br />
conc.) of SPM, SO 2 and NO X are shown in Table No. 4.1.4. The net resultant<br />
concentrations of SPM, SO 2 and NO X are well within the National Ambient Air Quality<br />
Standards (NAAQS) when the plant commences the operation. Hence there will not be<br />
any adverse impact on air environment due to the proposed expansion project.<br />
S. No. Stack attached to<br />
1.<br />
2.<br />
Kilns(2 x 100 TPD)<br />
with WHRB<br />
(Stack # 1 with<br />
twin flues)<br />
Kilns(2 x 100 TPD)<br />
with WHRB<br />
(Stack # 2 with<br />
twin flues)<br />
Dia<br />
(m)<br />
1.16<br />
per<br />
flue<br />
1.16<br />
per<br />
flue<br />
TABLE 4.1.3<br />
STACK EMISSIONS<br />
Height<br />
(m)<br />
60<br />
(Combin<br />
ed stack<br />
with<br />
twin<br />
flues)<br />
60<br />
(Combin<br />
ed stack<br />
with<br />
twin<br />
flues)<br />
Temp. of<br />
flue gas<br />
( 0 C)<br />
Velocity of<br />
flue gas<br />
(m/sec)<br />
180 16<br />
180 16<br />
SPM<br />
(g/s)<br />
0.6<br />
(< 50<br />
mg/Nm 3 )<br />
per flue<br />
0.6<br />
(< 50<br />
mg/Nm 3 )<br />
per flue<br />
SO 2<br />
(g/s)<br />
15.1<br />
per<br />
flue<br />
15.1<br />
per<br />
flue<br />
NOx<br />
(g/s)<br />
6.0<br />
per<br />
flue<br />
6.0<br />
per<br />
flue<br />
PIONEER ENVIRO 4 - 9 <strong>Environment</strong>al Impact Assessment Report<br />
Laboratories & Consultants Pvt. Ltd.
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