Topic 10 Finals Flashcards
(22 cards)
a waste treatment process that involves the combustion of organic substances contained in waste materials
Incineration
Incineration and other high-temperature waste treatment systems are described as
thermal treatment
one of several waste-to-energy (WtE) technologies such as gasification, pyrolysis and anaerobic digestion
Incineration with Energy Recovery
a machine that is used to burn solid and liquid waste produced on board a ship
Incinerator
designed to burn waste at high temperatures, which helps to destroy harmful pollutants
Incinerator
Features of Incinerator
Reduce Waste Volume
Reduce Environmental Impact
can reduce the volume of waste by up to 90%
Reduce Waste Volume
reduce the environmental impact of ships by destroying harmful pollutants in waste, whilst also reducing the amount of waste that may be discharged into the ocean
Reduce Environmental Impact
Incinerators that were built just a few decades ago often and do not include a materials separation to remove hazardous, bulky or recyclable materials before combustion
Early Incinerators
Incinerators that include air pollution control equipment (e.g., fabric filters, scrubbers, electrostatic precipitators) to remove fly ash and gaseous contaminants
Modern Incinerators
How many percent of solid mass of the original waste does an incineration reduces?
80-85%
How many percent of volume of the original waste does an incineration reduces?
95-96%
Annex regarding Incinerators
Annex VI of MARPOL 1973/78 Convention of IMO
date of installation of incinerator onboard a ship that must comply with requirements of the standard specifications for shipboard incinerators developed under resolutions MEPC.76(40) and MEPC.93(45
on or after Jan 1 2000
Under what resolutions are ships installed with incinerator onboard the ship on and after Jan 1 2000 must comply
resolutions MEPC.76(40) and MEPC.93(45)
Materials not to be incinerated
- Annexes I, II and III cargo residues of the present Convention and related contaminated
packing materials. - Polychlorinated biphenyls (PCBs)
- Garbage, as defined in Annex V of the present Convention, containing more than traces of heavy metals; and refined petroleum products containing halogen compounds
- Incineration of sewage sludge and sludge oil generated during the normal operation of a ship
must be monitored and should not be less than 850 deg C for continuous feed and reach 600 deg C within 5 minutes ( time may vary depending upon the capacity of incinerator) for a batch feed
Flue Gas Temperature
How much Flue Gas Temp of the Continuous Feed should be?
Not less than 850°C
The Flue Gas Temp of the Batch Feed should reach how much?
600°C within 5 mins
During incineration, it is important to control the exhaust temperature, which should not be very high or too low.
Incinerator Exhaust Gas Temperature
could lead to melting of metal and can cause damage to the machinery
High Incinerator Exhaust Gas Temperature
not be able to burn the residue and sterilise and remove odour from the residue
Low Incinerator Exhaust Gas Temperature
