Surgil ESIA Report - Volume III - EKN

OAJ “O’ZLITINEFTGAZ”
ПТЭО «Комплексное обустройство
месторождения Сургиль с извлечением ценных
компонентов»
At the projected construction noise source can be pipes that transport gas;
burner processing plants, etc. The noise from these production processes are usually
very small.
The most significant source of noise are the separating device at the time of
purging. In this case, noise is the result of significant pressure drops of gas, resulting in
a high speed exit purging products. Etching gas from the equipment occurs before the
maintenance work 1 time per year for 20-30 minutes. Blowdown separator is
conducted, depending on time of year: 1-2 times per day in summer and 3-4 times a
day during autumn and winter. Purge time is very small and amounts to 1-2 minutes.
Noise from venting gas are short-term episodic. If venting of gas from the
equipment, as well as during purges separating device maintenance personnel should
use personal protective equipment (headphones, antitifony stub, etc.).
On the territory of the projected structures permissible noise levels at work
places, working areas in production facilities and in the enterprise, permanent jobs
stationary machines will not exceed 80 dB, which shows the operating experience of
equipment in similar enterprises.
One of the main indicators of the proposed industrial activity is characteristic of
the impact on the environment.
Technology facilities, characterized by a continuous process of work associated
with minor air emissions of chemicals. The main ones are nitrogen dioxide and sulfur
oxides, carbon monoxide, hydrocarbons, soot.
On the basis of the calculated levels of atmospheric pollution, as shown on the
maps of dispersion (Figures 15 - 25), considered the ingredients, it is evident that the
nature of exposure under normal steady state operation is moderate. Maximum values
of surface concentrations in residential settlement are: nitrogen dioxide - 0,15-0,17
MPC, and for other contaminants, (nitrogen oxides, carbon monoxide, sulfur dioxide,
soot, acrolein, hydrocarbons) concentration does not exceed the level of 0.02 MPC.
The impact of the enterprise may be increased in case of accidental releases, the
occurrence of which would be of short duration.
In addition, the direct impact on the atmosphere will occur during construction.
Air emissions in this period are formed as a result of machinery and vehicles. The
main ingredients would be the products of fuel combustion in engines, as well as
inorganic dust in laying pipelines, digging trenches and pits, etc. It should be noted
that the impact on ambient air during construction will be of short duration, which
practically does not affect the background level of air pollution.
Since construction will occur in limited areas, the spatial coverage of the impact
area and reduce the need to be local.
Pipeline construction will have a temporary effect on soil and vegetation after
construction is completed reclamation of disturbed lands.
Книга 2. Часть 2. Проект ЗВОС по строительству ГХК
95