Possible influence on the
environmental situation of the port complexes
General part
Reclamation of new lands for cargo storages and handling
will require environmental control taking into account specialization
of transshipment complexes, types of cargo, water area organization
and safe navigation, also landscape character, foundation
soil as per general plan and other factors.
One of the most important task under project implementation
on-going, should be the improvement and arrangement of complexes
on the basis of final characteristics of accepted complexes.
Planning of industrial platforms should be in line with erosion
control, draining and collection of foul rain waters, also
examination, draining and collection of underground waters.
Due to massive soil movements and its transfer to discharge
areas, secure transportation and soil reinstatement with a
minimal impact on plant formation to be organized.
Dredging operations at shallow seaside will be one of the
extensional works. All dredging operations, soil removing
and its discharge to sea dumps should be monitored.
Technology of oil products storage and transshipment, system
of berming of tank field for storage of these products, and
also security of these systems providing leakage-proof and
fire-proof conditions.
Environmental control measures for this kind of cargo, also
for transshipment of general cargoes should be worked out
and reconciled at the corresponding stages at set up order.
Cleaning of foul drains of all kinds should be closely monitored,
thus, we plan to collect them, recycle at sewage disposal
plants, further usage, mainly for technical needs.
Taking into account potential complexes specialization, utilization
and disposal of industrial waste will not be a problem. Other
waste will be removed to waste incinerator.
In the northern part of the Tamansky Gulf we plan to create
a wildlife preserve that existed there before. The territory
of port complexes will be surrounded by forest belt. Coastal
soil dumps (if any) are subject to reinstatement and afforestation.
Dredging operation impact during construction
Sea bottom consists of sandy-loam silt, sand with coquilles
(by IV group of development)
We plan to use chain-and –bucket dredger of “Dvinsky zaliv”
type (contract efficiency is 750 m3/hour, regulatory –675
m3/hour) to remove soil and load it to self-propelled scow
of “Saulkrasti” type with a 600 m3 capacity hold
Design depths by the port wharfs are about minus 6.5 to minus
16.9 m. Soil removal after dredging will be done to newly
made territory or to underwater dump, the location of which
to be defined at the nest design stage.
Average distance from working site to soil dump is 22 km.
The main impacts on aquatic environment during dredging operations
are bottom deformation, turbidity increase accompanied by
change in quality of waters in case of either intaking or
disposal to underwater dump.
Suspended solid clay materials concentration during dredging
operations with the use of chain-and –bucket dredger of “Dvinsky
zaliv” type exceeds background water turbidity values in the
Kerchensky Gulf by more than 0,25 mg/l, and at the underwater
dump – by more than 10 mg/l.
Turbidity area appears at the location of chain- and –bucket
dredger operation due to soil particles washing off the buckets
when it lifts up from bottom to the surface.
Quantity of clay soil particles in suspended condition is
0,01%. 675 m3/hour*0,01=6,75 m3/hour=0,00188 m3/s (table 14
ĐÄ 31.74.09-96 «Regulations for sea dredging operations »);
by weight - 0,00188*1,70*106=3196 g/s.
Dimensions of turbidity area in the Kerchensky Gulf and underwater
dump depend on season flow variation through the Kerchensky
Gulf, which is why pollution levels and quality of waters
fluctuate considerably.
Average current speed in the Kerchensky Gulf at dredging area
is from 0,3 to 0,4 m/s. Turbidity area during dredging will
spread approximately by 1 or 1.5 km towards the Black sea.
Turbidity area calculations should be done during at the next
design stage.
Manifest does not cover soil turbidity investigation for the
present project, though such investigations during the similar
dredging operations prove that the polluted soil layer is
not thick (0,1 0,3m).
Thus, when chain-and –bucket dredger moves silt and sand with
coquilles, the above polluted soil mixes with pure under layers
(1,0 1,2 m thick), so it will lead to total reduction of pollution.
Soil investigation in terms of pollution will be done at the
next stage of engineering.
Since no engineering and geological investigation was done
at the locations of planned dredging operations (Panaguia),
the following soil characteristics were considered for purely
preliminary calculations: clay and loam IGE 3ŕ, IV group of
development, II category of discharge.
Regulation of loading to barge of “Saulkrasti” type (“Krimskaya”)
by soil of IV group 440m3 in natural occurrence (table ą58
Regulations of underwater dredging operations)
When soil is discharged from barges of “Saulkrasti” type particles
become suspended, go through water body from barge to underwater
dump area. Quantity of clay suspended when barge hold is emptied,
depends on volumes discharged and makes about 0,72% (440 *
0,0072 = 3,168 m3 or solid particles 3,168 m3 * 1,537 t/m3
* 106 g/t = 4869216g.).
Turbidity zone when soil is discharged is determined at the
next stage by computer calculations with turbidity level of
10 mg2/l water volume above dump.
Environment control measures
Environmental friendly dredging operations require pluridisciplinary
attitude and compilation of data received during the equivalent
works in port and canal area, field engineering and geological
and ecological investigations, laboratory analyses and from
dredging specialists.
Due to the fact that dredging operations have an inevitable
influence on environment and result in chemical, physical
and biological changes, they should be monitored and controlled
in terms of ecology and technology:
- next designing stage requires engineering and ecological
investigations, chemical soil analysis, technology of dredging
operations and calculation of aquatic environmental damage;
- it is necessary to carry out ecological and technological
control during dredging operations (Control program to be
worked out at the nest designing stage)
- dredging operations to meet the deadlines reconciled with
Fishery Committee of Russian Federation of the region;
- to load barges with soil not by means of overflow;
- not to move barges when bottom hatches are open and barges
are unloaded;
If followed technological discipline will provide ecological
safety of aquatic environment and its bioresources.
Impact on atmosphere
Main atmospheric discharges from port terminals will be
in form of grain and coal dust in case of overcharge of terminal’s
technological equipment.
Besides, there will be atmospheric discharges as a result
of repair works in terminal’s workshops, boilers, vehicles
and railway transport.
Grain and coal dust discharges will be minimized at the account
of special technologies.
Due to the fact that terminals are equipped with modern facilities
and considerably far from accommodations and the distance
exceeds standard protection zone, we can make a preliminary
conclusion that there would not be a significant negative
influence on atmosphere of Tamansky Peninsula.
All necessary analyses of atmospheric pollution will be carried
out to confirm the same during the design of terminals in
accordance with atmospheric protection law of Russian Federation
in action.
Impact on aquatic environment
Accumulation and draining of waste waters
Port terminals operating underway, we plan to accumulate
domestic, industrial and rain wastewaters, also vessel domestic
and bilge waters.
Domestic wastewaters are accumulated in administration buildings
and vessels of transportation fleet.
Industrial waters are sewage from laboratory and bilge waters
from vessels. Laboratory sewage is the same as domestic wastewaters
and they both are collected in terminals’domestic sewarage
and forwarded to waste waters disposal plants. Bilge waters
are accumulated at floating collectors and disposed to special
berth of oil factory for recycling.
Rain waters are collected in network of rain drainage and
pump station from which they are pumped to disposal plants.
Environmental impact due to waste disposal
As far as wastewaters are recycled at sewage disposal plant
of industrial districts, no direct impact on seawaters around
terminals’ territory will be there.
Sewage disposal plant should provide quality recycling corresponding
to requirements towards waters of fishery farms.
Accumulation and discharge of waste
During industrial operations such as goods transshipment
and storage, maintenance of transport and port fleet, and
also life activity of employees, industrial and domestic waste
will be there.
ą |
Type of waste |
Danger class (toxicity) |
Possible ways of utilization and discharge
|
1 |
Used luminescent tube lamps |
1 |
Demercurization at licensed factory of
mercury lamps recycling |
2 |
Floating oil products |
2 |
Transfer to oil yard |
3 |
Cleaning facilities dregs |
4 |
Burial at specialized range |
4 |
Domestic waste |
4 |
Transfer to waste incinerator |
5 |
Food waste from canteen |
4 |
Transfer to waste incinerator |
6 |
Industrial waste |
4 |
Burial at solid domestic waste range
|
7 |
Oil rags |
4 |
Transfer to waste incinerator |
8 |
Special ship waste |
4 |
Transfer to waste incinerator |
|