d) A smoke density meter/recorder should be provided.
G) The average dioxin and furan concentration in the emission should not exceed 80mg/m3 total dioxins and furans if measured for a period of 6 to 16 hours.
– Manual technical monitoring is shipped with the hardware together with all explanations of failures and resolutions
B) The room should guarantee a minimum exit temperature of 850 degrees centigrade.
2.4 Secondary Combustion Chamber (After burner)
a) ought to be fitted with burners using low sulphur fuel.
2.6 Chimney/Stack
l) The chimney should have a minimum height of 10 metres above ground level and clear the highest point of the building by not less than 3 metres for all roofs. The topography and height of adjacent buildings within 50 metres radius should be taken into consideration.
1. Supply, install and commission an incinerator as provided in the technical specifications
B ) The temperature of the primary chamber shall be 800 +/- 50 degrees centigrade
Controlled hygienic mechanical feeding that does not negatively influence the air temperature at the primary and secondary chambers of the incinerator shall be used.
M) The chimney should be visible to the operator in the feeding area.
1. Overall plant layout
Capacity/island: 4000 kg/day; 25000 kg/day; 31000 kg/day; 48000 kg/day
Burning temperature — more than 12000C
Two chambers — minimal
Emissions — dioxin and heavy metaly — better then Kyoto protocol
Emission — monitoring system
Waste unloiding — directly from waste track to incinerator
2.5 Particulate Removers
A mechanical particulate collector must be integrated after secondary combustion chamber for removal of particulate pollutants entrained in the flue gas flow.
3. Assessment and preparation and construction of a normal incinerator drop with one waste storage space ( see the design )
4. Provision of maintenance and operation manuals and drawings complete with maintenance schedule and directions.
5. Fuel oil storage tank- Moderate steel1500 liters capacity
6. Onsite training for maintenance and operation staff.
IMPORTANT
N) The minimum exit rate should be 10 metres per second and at least twice the surrounding wind speed (Efflux velocity = wind speed x 2) whichever is higher to ensure no down washing of exiting gases.
D) Make sure the gas temperature as measured against the inner wall at the secondary chamber and not in the flame zone is not less than 1100 degrees centigrade.
F) Any other instrument which may be considered necessary.
2.9 Emission Limits
a) Combustion efficiency (C.E) shall be at least 99.00% where C.E =%Carbon dioxide x 100 / [% Carbon dioxide + carbon dioxide ]
7. Minimum capacity of main chamber = 0.18 cubic metres
2. Provision for adherence to OSHA and other statutory requirement relating to Health and Safety of workers during implementation of the functions covered in this tender.
E) Make sure the emitted oxygen content of the emitted gases is not less than 11%
5. Acid gas scrubbers.
6. The stack/chimney.
C ) Ensure residence time is not less than two seconds.
Incinerator manufacturers To allow the Employer undertake conclusive evaluation of the tender, tenderers are requested to submit with their offers the detailed specifications, drawings and catalogues with commissioning and maintenance instructions for the Incinerator they intend to provide, install and commission. Tenderers who don’t comply with this requirement fully shall have their tenders rejected. 2. TECHNICAL SPECIFICATIONS OF THE REQUIRED INCINERATOR
2.1 General Description
The plant must have four distinct sections that demonstrate three principles of turbulence, residence time and temperature retention. The regulated sections may include but not Limited to:
2.3 Primary Combustion Chamber.
a) This room should be equipped with burners using low sulphur fuel.
1.
D) Opacity of the smoke shouldn’t exceed 20% seen from 50 metres with naked eyes.
3. Primary combustion chamber
O) The point for measurement of emissions shall be provided.
2.7 Instrumentation
a) Instrument for determining the inside wall temperature and not burner flame temperature must be given for both primary and secondary chambers.
9. Should have a full width counterbalance loading door allowing easy access to the main room for loading and removing ash.
F) A 99.99% destruction and removal efficiency (DRE) for each principal organic hazardous constituent (POHC) in the waste feed in which DRE [ ( Win – Wout) /Win ] x 100 where Win = mass feed rate of the POHC in the waste stream fed into incinerator and Wout = mass emission rate of POHC in the stack before the release to the atmosphere.
E) A solid particulate meter/recorder should be provided.
4. Particulate scrubbers
8. Burn rate (rate of waste incineration) = a least 20 kg per hour
B ) An audible and visible alarm must be installed to warn the operator once the secondary chamber temperature drops to below the required temperature.
C ) The secondary chamber gas residence time shall be at least 1 minute at 1050 +/- 50 degrees centigrade with 3% oxygen in the stack gas.
Waste unloiding – directly from waste track to incinerator
