KAMARAJAR PORT LIMITED
(ERSTWHILE ENNORE PORT LIMITED)
(A Mini Ratna Government of India Undertaking)
Chennai
Development of
Additional two Coal Berths (CB3 & CB4) of 9 MTPA capacity each at Kamarajar Port
September 2014
Response of Kamarajar Port Ltd. to Comments of EAC Committee
dated 26th
August 2014
1. Provide the list of the similar port developments in India , where terminals are constructed cutting the land with the details ,i.e.,
Compliance: List of the Port Project, where Terminals are Constructed Cutting the
Land
Name of the Port No. of
Terminals/Berths/Je
tties Constructed
Quantity of
Capital
Dredging
(MCM)
Place of Disposal of
Dredged Material
Year of
EC
obtained
M/s New Mangalore Port Trust. (Photo Plate 1)
Berth No.15. Coal (captive) Length & width of the berth-350mts x 25 mts
Land material excavated 2,62,500 Cu.m. (approx.) Dredging 7,87,500 cum(approx.)
Existing dumping ground, located at about 13 km towards South Western side of the shore into the sea.
2011
Berth No.18 under progress (Bulk cargo and containers) Length & width of the berth-350mts x 25 mts
Land material excavated 1,00,000 Cu.m. (approx.) Dredging 9,00,000 cum(approx.)
M/s Visakhapatnam Port Trust (Photo Plate 2)
Two berths 0.175 Designated dumping ground.
2011
M/s Paradip Port Trust
One Berth One Oil Jetty
(i) 4.0 (ii) 1.0
North of northern breakwaters for nourishment & (ii) disposed at designated site.
2012
M/s Ganagavaram Port Limited(Photo Plate 3)
Four (One Coal and Three multipurpose
berth)
4.88 The dredged material will be pumped onshore for reclamation of the port back up areas
2012
Kariakal Port by M/s MARG Ltd., Chennai(Photo Plate 4)
Immediate Phase: 10.0
Ultimate
Partly used for reclamation and partly for disposal in sea
2008
Name of the Port No. of
Terminals/Berths/Je
tties Constructed
Quantity of
Capital
Dredging
(MCM)
Place of Disposal of
Dredged Material
Year of
EC
obtained
Phase: 14.5
The expansions of the above Major and Private ports were carried out within their breakwaters. The layout plans of Major port of Chennai, Kolkatta & Mumbai reveal that docks were developed inside the port area. Development of Jawahar dock at Chennai, Netaji Subash Dock complex at Kolkatta Port and Indira dock at Mumbai port were developed by dredging the land. Copies of the respective Environmental Clearance letters of the abovementioned projects are enclosed.
Photo Plate 1: New Mangalore Port Layout
Photo Plate 2: Vishakhapatnam Port Layout
Before Project After Project
Photo Plate 3: Gangavaram Port Layout
2006 2011
Photo Plate 4: Karaikal Port
Photo Plate 5: Jawahar Dock at Chennai Port
Jawahar Dock
Photo Plate 6: Haldia Dock Complex at Kolkata Port
Photo Plate 7: Netaji Subhash Dock Complex at Kolkata Port
Photo Plate 8: Indira Dock at Mumbai Port
2. Coal loading and unloading practice in Kamaraj Port to exhibit cleaner mechanized
way of loading and unloading and covey the coal/other materials like Iron. Detail
pictures of present Coal Stack Yard.
Compliance: Kamarajar Port Limited (erstwhile Ennore Port Limited) has three existing Coal Berths, CB 1 (8 MTPA) and CB 2 (4 MTPA), and M/s. Chettinad International Coal Terminal (CICTPL) (8 MTPA). CB 1 and CB 2 are dedicated to Tamil Nadu Generation and Distribution Corporation (TANGEDCO), a Govt. of Tamil Nadu Enterprise.
The non-polluting mechanized coal handling system of EPL has the following components:
a. Shore Based Gantry Cranes with Grab Un-Loaders:
There are two shore based gantry cranes with grab un-loaders (2000 TPH capacity) in each of the Coal handling berths of Ennore Port. These gantry cranes are fitted with grab un-loaders, which hinders spillage of coal. The photographs of the Shore Based Gantry Cranes with Grab Un-loader is shown in Photo Plate 9.
The advantages of using shore based gantry cranes are as follows:
Ship’s gantry cranes operates on diesel, whereas shore based cranes operate on electricity, which in turn reduces direct emission of air pollutants.
Shore based gantry crane with grab un-loader avoids spillage of coal.
Photo Plate 9: Shore Based Gantry Cranes with Grab Un-loader
b. Hopper with Closed Coal Conveyor Belt:
A traveling trolley is used to grab the coal from the vessel and transport it to a position just above the hopper located at the center of the crane span. A spillage plate is attached to the hopper frame to prevent the spilling of coal during the unloading process.
The spill plate is placed at the front end of hopper frame recovering the spilling Coal to the inside of hopper preventing it from dropping into sea and on the ground. The spill plate is hoisted up and down by two set of chain hoist placed midpoint of seaside leg.
When the coal is transferred into the hopper, it is then fed onto the belt weigh feeder located at the outlet of the hopper. The coal is then passed below belt weigh feeder onto the wharf conveyor. The wharf conveyor is connected with the closed conveyor belt.
The entire conveyor system is fully covered with galvanized sheets and translucent sheet at regular intervals. In addition to the above, the conveyor system is provided with deck sheet at the bottom of the conveyor wherever necessary. Hence, the possibility of coal spillage/ coal dust dispersion is negligible. The photographs of the closed conveyor belt system are shown in Photo Plate 10.
Conventional method of transporting through trucks causes vehicular pollution and coal dust emission. Also the operational area/jetty is cleaned after every unloading/loading operation to prevent piling up of material, if any.
Photo Plate 10: Closed Conveyor Belt System
c. Closed Transfer Towers:
Closed transfer towers, which are shown in Photo Plate 11, are provided at transfer points to avoid coal dust generation and coal spillage. The cargo transfer point has closed discharge chute and skirt board with rubber skirt pads.
The conveyor transfer towers are fully closed with galvalume sheets. High efficiency water spraying system is provided inside the tower to avoid dust emission during transferring of coal. In addition to the spraying system, the coal discharge point and receiving points are fully covered with deck sheets.
Photo Plate 11: Closed Transfer Station
d. Water Sprinkler System:
Water sprinkler system is provided in the coal berths and coal stack yards.In the coal berths, it is designed to prevent scattering of dust at the hopper and the belt feeder outlet arising from unloading operation. Pressured water is sprayed by spray nozzle from the inside of hopper wind wall producing a water curtain. To fill the water tank located on the feeder frame level, the hose of reeling device is connected to the water lines with quick coupler on the ground level. Two set of pumps is provided at a near the side water tank out of which one is operational and the other is spare. The spray nozzle is placed on both sides of the wind wall in two stages, head chute of belt feeder and cushion frame of ground conveyor to form a water curtain the water level inside the tank is controlled by the water level switch electrode, which terminates the supply automatically when full. The water sprinkler system is provided at the coal stack yard to prevent coal dust dispersion from the stacked coal, which is shown in Photo Plate 12&13.
Photo Plate 12: Water Sprinkler System
at the coal stackyard
Photo Plate 13: Water Sprinkler
System at the Coal Stack Yard
The water sprinkler system is provided at the hopper to prevent coal dust dispersion during unloading Photo Plate 14.
Photo Plate 14: Water Sprinkler System inside the hopper
e. Dry Fog Dust Control System
One of the widely used and effective dust control system is the dry fog dust control system. The basic principle is the formation of dry fog with the help of air atomizing nozzle to agglomerate and remove airborne dust particles from various material handling and processing operations. Compressed air and water is used in this system to produce droplets of 1 – 10 micron, which is equivalent to fog. Only the dust in the air gets attached with the ultra-fine water droplets and fall onto the surface due to increase in size, whereas the material does not get wet in this process. Since, no chemical suppressants are used, this method is safer to use. Dry fog dust control system, which is shown in Photo Plate 15,is installed in coal unloading/loading areas, to control fugitive emission.
Photo Plate 15: Dry Fog Dust Control System
f. Coal Dust Emission Control Measures at the Coal Stack Yard
Compliance: Apart from water sprinkler system, the following coal dust emission controlling measures are undertaken:
Wind shield at stack yard. Green belt around the stack yard. Catch pits with saucer drain at stack yard. Settling pond – to ensure zero discharge of rainwater at stack yard.
The entire stack yard is protected with compound wall of sufficient height made of RCC column and brick masonry, the entire stack pile area is covered with three rows of plants.
The existing stack yard is provided with saucer drain and two numbers of catch pits. The catch pit is connected with settling pond through leading channels. These catch pits/ leading channel and settling pond are constructed using geo-synthetic membrane sheet and cement concrete to avoid any percolation of effluent into the ground and any nearby water bodies during the rainy season. The coal dust emission control measures undertaken in the coal stack yard is shown in Photo Plate 16 and 17.
Port has taken up a massive plantation with rich bio-diversity for the development of green belt. In total about 50 Ha of green belt area exists in the port at various pockets, with approximately of 30,000 trees. Port is also continuously developing the green belt by way of planting new plants and maintaining. The green belt besides working as a dust barrier also provides favorable nestling ground for birds of variety and migratory in nature.
Photo Plate 16: Coal Dust Emission
Control Measures in Coal Stack Yard Photo plate 17: Green belt around the stock
yard
Photo Plate No.18: Green belt inside the Port
3. Comparison of coal handling at Kamarajar Port and Chennai Port
At present no coal handling is taking place at Chennai Port. The Hon’ble Hgh Court, Madras has directed to shift the dusty cargoes like coal, iron ore and other dusty cargoes to Kamarajar Port.
The Hon’ble Supreme Court constituted an Empowered Committee to look into the issue of pollution in the context of Chennai Port Trust’s Review Petition to the Supreme Court for restoration of Coal handling at Chennai Port. The Technical Sub-Committee appointed by the above Committee visited Ennore Port on 12.5.2012. Air quality monitoring at various locations inside Ennore port were carried out by the Sub-Committee from 14.5.2012 to 22.5.2012. The air quality results revealed that the concentration of PM 10 & PM 2.5 are well within norms.
