Krasnodar GRES Project Volume I11 Environmental Assessment

Krasnodar GRES Project Volume I11 Environmental Assessment Krasnodar GRES Project Volume I11 Environmental Assessment

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5.2 Operation Stage Figure 5.1 is representative of the power plant flow process "raw materials- product-waste" during operation. Table 5.5 is representative of methods of waste utilization. "Raw materials--product--wasterr diagram for power plant operation stage. RAW MATERIALS PRODUCT Natural gas 1472 mln. m3/year Diesel fuel 38 thou.t/year Mazut 1.8 thou. tlyear Water 180 m3/hr Maintenance Chemical (limited quantities - see Section 6.3.2) POWER PLANT 126 glsec 4.4 thou. m3/day 2734 tlyear 6 mln Gcallyear 2581 tlyear (NOx, SO21 b * b Power * 6494 mln KWH/year 4 Heat 150 Gcallhour 1 WASTE 1 Gases Treated waste water Dry salts Heat loss PAGE 5-8

Waste Waste gases Sanitary waste Dry salts Heat loss 5.2.1 Power Plant 5.2. I. 1 Air Impact Table 5.5 Power Plant Waste Methods of Discharge Volume 2581 t per year 4.4 thou.m3/day 2734 t/year 620 MW Utilization Methods Dispersion in atmosphere from 150 m stack Discharge to the Laba River after treatment Storage (25 years) Dispersion in atmosphere According to Russian OND- 86 requirements KSAU performed calculations of nitrogen oxides concentration accounting for background pollution and summation effect with sulfur dioxide for adjacent populated areas and the Caucasus biosphere reserve during gas emission from the power plant stack under unfavorable meteorological conditions. All the results have been achieved without using computer software and in accordance with OND - 86 requirements. Appendix 22 and the Archives of KSAU contain the results of these estimates. Emissions from all existing stationary sources (PMDO "Yug" and others) as well as @ public and private transportation sources have been accounted for in the background concentrations, which according to section 7.6 of the OND - 86 are more preferable than calculations on the basis of emissions inventory data for individual sources of pollution. Models of atmospheric dispersion in the Russian Federation have been strictly determined. These models have predetermined unfavorable meteorological conditions which are mandatory. Calculations for the normal mode of the power plant operation have been performed using the following initial data (see Table 5.5): 1. Stack height - 150 m; 2. Stack mouth diameter - 14.4 m; 3. Mean gas emission rate - 23.4 mlsec; 4. Weight of NOx emitted - 126.49 glsec; 5. Gas temperature - 1 20°C; 6. Ambient air temperature - 28OC. 7. Unfavorable meteorological conditions have been determined according to the OND - 86 requirements. PAGE 5-9

5.2 Operation Stage<br />

Figure 5.1 is representative of the power plant flow process "raw materials-<br />

product-waste" during operation.<br />

Table 5.5 is representative of methods of waste utilization.<br />

"Raw materials--product--wasterr diagram for power plant operation stage.<br />

RAW MATERIALS PRODUCT<br />

Natural gas<br />

1472 mln. m3/year<br />

Diesel fuel<br />

38 thou.t/year<br />

Mazut<br />

1.8 thou. tlyear<br />

Water<br />

180 m3/hr<br />

Maintenance Chemical<br />

(limited quantities -<br />

see Section 6.3.2)<br />

POWER PLANT<br />

126 glsec 4.4 thou. m3/day 2734 tlyear 6 mln Gcallyear<br />

2581 tlyear<br />

(NOx, SO21<br />

b<br />

*<br />

b<br />

Power<br />

* 6494 mln KWH/year<br />

4<br />

Heat<br />

150 Gcallhour<br />

1 WASTE 1<br />

Gases Treated waste water Dry salts Heat loss<br />

PAGE 5-8

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