QN thermal plant

Environmental Impact Assessment of

Prepared
Preparedby:
by:

NGUYEN THE VINH


ContentS


Introduction



Project description



Existing of environment at Project site



Existing of environment in Project area



Impact assessment of project



Mitigation measures of impacts



Conclusions and recommendations




Halong Bay is a natural heritage
acknowledged by UNESCO.



Energy
resources
are
under the big pressure
from economic growth.



Quangninh thermal power
plant is within the scope
of the national power
energy
development
program.



Determine, analyze and forecast
all impacts of QN thermal power
plant during construction stage.



Determine and analyze impacts in
operation stage



Recommend mitigation measures
for human living and
environmental protection.


MAJOR PARAMETERS AND APPLICABLE TECHNOLOGY

Parameters















Plant capacity
: 1200 MW
Boiler type :
PC
Unit capacity
: 300 MW
Boiler efficiency : > 89 %
Turbine - generator efficiency
: > 44 %
Other losses
: 0.5 %
Plant efficiency
: 39 %
Operation hours : 6000 hrs
Air temperature
: 24 oC
Fuel consumption rate
: 0.471 kg/kwh
Plant fuel consumption
: 565 t/h
Unburned carbon in ash
:6%
Unburned carbon in coal : 2.30 %

MAJOR PARAMETERS AND APPLICABLE TECHNOLOGY

Fuel
Carbon

C

%

49.50

Hydrogen

H

%

2.93

Oxygen

O2

%

1.93

Nitrogen

N

%

1.04

Sulphur

S

%

0.6

Ash content

Ap

%

36

Humidity

Wp

%

8.00

V

%

6.50

Low heating value

LHV

Kcal/kg

4655

High heating value

HHV

Kcal/kg

4860

Volatile matter










Checklist: for identification of effect
and impact of project
Statistic method: collect and solve socioeconomic, hydro-meteo data
Comparison method: analyze impact on the
basic VN’s standards(1995,2001)
Rapid assessment: suggested by WHO



Assessment of pollution load
Assessment of measures for pollution control


Frame work of
Methodology
QN Thermal Power Plant
Construction phase

Operation phase

Pollutants

Pollutants

Located Project

Soil

Air
Water

Compare
Environmental
Impact
Assessment

Socio-Economic
Mitigation Measures
Eco-System
Conclusions

Vietnamese
standards


Project description
Quảng ninh
Thermal Plant

Location coordinate:
+ 1070 05’20’’ to 11027’17’’ north latitude
+ 21002’10’’ to 109001’00’’ east longitude


Project description









The owner: Electricity
of Vietnam
The location: at Thong
Nhat commune, Hoanh
Bo district, Quang Ninh
province
The whole area:
100 ha

The NPP’s capacity: 1200 MW (4x300MW)
The fuels is transported by conveytor in direction


The physical environment


Topography




Mainland topography
 Surrounded by low
sloping hill

 Areolation
Seabed topography
 Crushed primitive
sediments



Meteorology









Climate and weather
Wind
Rain
Storm
 June to October
Humidity
 Average year : 80%
Solar radiation
 2430 -2600 h/year


Average weather data during 10 years (1991 - 2001)
Parameters

Average data

Annual average temperature

23 0C

Annual average of maximum temperature

26.6 0C

Annual temperature of minimum temperature

20.2 0C

Highest temperature

40.5 0C

Lowest temperature

5 0C

Annual average rainfall

1912 mm

Monthly highest average rainfall

390.9 mm (June)

Monthly lowest average rainfall

28.1 mm (January)

Annual average rainy days

140 days




Hydrogeology












Tidal regime; High:3.6m,
Aver: 2.06 m, ebb:0.5m
Vibration of cycle regime of
sea water: stable
Ware: Smooth, 0.25m

Temperature of sea water
aver 16.8- 28.6 0C
Salinity of sea water
 Soil quality
aver: 0.42%
 Soft, hard clay
Freshwater
 Clay- sand
Suspended waste solid


The biological environment


Tidal ecosystem (






species)

Sub-tidal ecosystem
 Shallow water: 3 species
 Sea grass: 71, 40(mollusks)
 Coral: 117 species, 40 genera, 12
families
Tidal ecosystem
 Mangrove forest: 13 species

Terrestrial ecosystem






Mammal: 35 species, 15 genus,
8 register
Bird: 14 species
Reptile: 7 species
Hermaphrodism: 2 species




Aquatics ecosystem










Algae:
 100 species belong 3 major

genus
Zooplankton:
 50 species belonged 11 descent
Benthic animal:
 8 species
Seafood:
 30 species of shrimp, 14 of crab
and mollusks
Fish:
 Many species of fish.


Data of diversity in Bai Chay gulf and Ha Long bay.
Location

Density
(Individual)

Living
mass
(g/m2)

Species
number

Species
diversity
factor (H)

Stability

factor (J)

A

46.67

10.17

7

1.80

0.93

B

47.50

15.00

11

2.27

0.95

C

90.00

25.67

9

2.03

0.93

D

48.33

12.00

14

2.44

0.92

E

50.00

42.67

9

2.08

0.95


Density of living and benthic animals at Ha Long and Bai Chay gulf.
(Values in bracket is percentage rate at such locations.)

Annelida

Crab

Mollusks

Individual/m2

g/m2

Individual/
m2

g/m2

Individual /m2

G/m2

3
(6.51)

0.17
(1.67)

--

--

43
(93.49)

10.00
(98.33)

28
(58.33)

3.00
(20.00)

--

--

20
(41.67)

12.00
(80)

--

--

17
(50.00)

17.34
(68.00)

17
(50.00)

8.33
(32.00)

12
(24.49)

1.16
(9.66)

7
(14.29)

3.33
(27.75)

30
(61.22)

7.51
(62.59)

7
(13.73)

1.00
(2.34)

17
(33.33)

16.33
(38.27)

27
(52.94)

25.34
(59.39)

8
(11.27)

1.50
(2.28)

18
(25.35)

23.00
(34.98)

45
(63.38)

41.25
(62.74)


The socio-economic situation


Population






Land use structure




5,261 people/1,338 household in
Hakhanh precinct
7,945 people/1,800 household in
Thong nhat Commune
31.53km2, 238ha of arable, 336 ha
of industry and 988 ha of forests

Infrastructure
Education and training
1 primary (HK) and 9 school (TN)
 Medical station: 1(HK) and 1(TN)
 Transportation




Public health


Fresh water system, medical care


Existing environment at project
area


Existing water quality





Air environment quality





Surface water environment
Result of analyzing of water samples
Air environmental pollution source
Result of analyzing of air samples

Noise status



Noise generation source
Results of analyzing of noise samples

Almost all pollution indices are within permissible
limit of VN’s standard


Soil :Lead, copper, zinc content is higher than other
areas


Construction phase


Pollution sources







Pollution with solid wastes




Dust, water, noise, thermal, working activities
Impact on the water quality
 From 500 workers, employees
Impact on air quality
 From vehicles, transportation vehicles,
equipments, earthwork activities..
 Air pollutants, toxic gas..
Waste construction material: brick, pebbles,
cements, woods, metals

Other impact


Pille driving (vibration), temporary constructions,
noise pollutants…


Operation phase








Impact on the atmosphere
Impact on the tidal ecosystem
Impact on the aquatic ecosystem
Impact on soil and sediment
Impact on biodiversity
Impact on people





Potential of malignant growth
Diseases and respiration system
Thyroid gland…
Congenital malformation, Intestinal diseases,
memory reduction in children


During construction phase


Aquatic ecosystem
temporary treatment, oil water separator, minimum
wastes..



Air impact

regulations, management/control of domestic traffic,
monitoring toxic gas, …



Control of pollution caused by construction
plant and equipments
Prevention of the use of obsolete, overload machinery, etc.




Control of pollution caused by solid waste
Mitigation measure of other impact
take care of health workers, safety and security measure
to avoid accident, destroying forest, etc.


Operation of TPP


Mitigation impact on air quality



Control measure for toxic gases
dispersion




Dusts, SO2, , NOx..

Mitigation measures for impact
on water quality


Waste water, oil wastes treatment



Treatment of solid wastes, wastes..



Noise and vibration control



Power supply system



Lightning and earthing system


Environment monitoring
program




Management measure for local environment
protection


Environment protection group.



Environmental training course



Health care



Monitoring program

Environment pollution monitoring


During construction phase



Pollution control program



Accident analysis



Public information




Quang ninh TPP is expected to be an
important option of energy for the
achievement of socio-economic development
and environmental protection






Annually, the plant supplies about
7,200TWh for national economy.
Quang Ninh TPP project will create job
opportunities for thousands of people
Create favorable conditions for the
development of the regional economy and
attraction of foreign investment in this
area,.. etc.