Institut za rudarstvo i metalurgiju Bor

• Waste water created during the gasification
• Waste water created during the underground
filtration
• Waste water from the plant for the
gas production
• Gas emissions resulting from the
production / combustion
• Oil spillage
• Possible waste water as the result of
discharges, leakages from joints and
cooling
• Possible contamination of solid debris
from landfills
In addition, a care must be taken to
prevent emissions of CO2, formed as the
result of process, the effect on surface
water, the effect on groundwater, sounds
(noise) that occur during the process and
other effects and adverse impacts to humans
and environment.
Gas emission
There are two main factors that affect
the gas emissions caused by the surface
and subsurface processes. The highest
emission of harmful substances created
during the gasification process includes:
Gaseous matters:
- Hydrogen, carbon dioxide, carbon
monoxide, sulfur, oxygen
Organic matters:
- Essential hydrocarbons: Methane,
ethane, ethylene, propane
- Aromatic hydrocarbons: Benzenes,
methyl benzene, benzenes, naphthalenes
- Organic acids: Phenols, alkyl phenols,
naphthol, alkyl naphthol
- Organic bases: Pyridine, methyl pyridine,
aniline, indolyne, kinolyne,
isokinolyne
- Saturated / Cyclic hydrocarbons: N -
Alkali, cyclic alkali
- Unsaturated hydrocarbons: Olefins
Inorganic matters:
- Boron, fluoride, bromide, chloride,
selika, lithium, sulfate, manganese,
ammonia, sodium, sulfide, iron, calcium,
cyanide, barium, potassium,
magnesium.
Influence on:
- Air quality
- Ozone layer
- Greenhouse
The majority of pollutants created during
the process are annulated in the process.
During generator operation, the traces
of SO2 and NOx, are discharged into the
atmosphere, and CO2 remains sequestered.
Sequestration of CO2 includes the elimination
of CO2 and partly its injection back
under high pressure.
The main problem of pollution the surface
water during the process of PG is
pumping without proper filtering processes
into the river system, natural resources
and spilling during the process
and drilling. Towards the control of waste
water, adequate measures must be implemented,
also in the process.
The influence of the underground gasification
process to humans is minimal.
The main factors are the increase in noise,
dust and pollution of drinking water. [1]
CONCLUSION
Environmental protection at today
level of development, both in developed
and in developing countries, has become
necessary because, due to intensive energy
development, the impacts on it are more
and more complex. The problem is particularly
complex because a compromise
must be achieved between the energy policy
and environmental policy due to a fact
that practically all energy sources and
systems have a greater or less impact on
the environment.
No 1,2010. 145
MINING ENGINEERING