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Class 2          Industrial Incinerators

Class 2A:    Commercial

Incinerators for the disposal of waste that contains hazardous, potential hazardous and bio-medical waste where the

operator exceeds 100 Kg/day.

1. Dimensions: 2.2m(l) x 1.5m(w) x 2.5m(h)
2. Fully automatic computer multi control system.
3. Fuel Options- Diesel and natural gas, electricity
4. Wasted fuel- >12L/h
5. The incinerator should burn up to 200kg < of waste per hour.
6. Min.temperature-750癈<
7. Max.temperature-1000癈<

Class 2B:      Small Scale Incinerators for Private Use

Incinerators for the disposal of hazardous, potential hazardous and bio-medical waste where the operator does not

exceed 100 kg/ day.

Class 3:  General waste Incinerators

Incinerators for general waste that is non toxic, non hazardous, non medical or does not  contain organic halogens,

i.e., selected customs, police, contraband goods, offices waste, commercial waste  and industrial wastes) where the

operator does not exceed 1 ton/ day.

STANDARDS, GUIDELINES, CRITERIA, PROCEDURE FOR INSTALLING/OPERATING INCINERATORS

No. Parameter     Standards, Guideline, Criteria and Procedure

1     Basic Plant Design     An approved plant must have four distinct sections that demonstrate three principles of

Turbulence, Residence Time and Temperature are inbuilt in the plant design .The regulated sections may include but not

limited to:

Overall plant layout.

Feed chamber/ charging   —build by local customer

Primary Combustion Chamber. –yes

Secondary Combustion Chamber. –yes

Particulate Scrubbers—- filter brick chamber included

Acid Gas Scrubbers—none

The stack/ chimney. –yes

2     Feeding And Charging     Controlled hygienic, mechanical or automatic feeding methods have to be used which will

not influence the air temperature in the primary and secondary chambers of the incinerator negatively.

No waste is to be fed into the incinerator:

1. Until the minimum temperatures have been reached.—manual feeding

Please  incorporate a mechanical feeder

2. If the minimum combustion temperatures are not maintained. –yes
3. Whenever the previous charge has not been completely combusted in the case of batch feeding. –yes

4. Until such time as the addition of more waste will not cause the design parameters of the incinerator to be

exceeded. –yes

3     Primary Combustion Chamber The primary combustion chamber must:

1. Be accepted as the primary combustion zone. –yes
2. Be equipped with a burner/s burning gas/fuel or low sulphur liquid fuels. Other combustion methods will be

judged on merits.

3. Ensure primary air supply is controlled efficiently–yes
4. Ensure minimum exit temperature is not less than 850oC—800-1000 oC

4     Secondary Combustion Chamber (Afterburner). The secondary combustion chamber must:

1. Be accepted as secondary combustion zone. –yes
2. Be fitted with secondary burner/s burning gas or low sulphur liquid fuel or any suitable fuel. –yes

4. Ensure flame contact with all gases is achieved. –yes
5. Ensure residence time is not less than two (2) seconds. –yes
6. Ensure the gas temperature as measured against the inside wall in the secondary chamber & not in the flame

zone, is not less than 1100oC.—1000-1200 oC

7. Ensure the oxygen content of the emitted gases is not less than 11%.–yes
8. Ensure both primary and the combustion temperatures are maintained until all waste has been completely

combusted–yes

5     Particulate Removers A mechanical particulate collector must be incorporated after secondary combustion

chamber for removal of particulate pollutants entrained in the flue gas stream. The particulate collectors may include

any of the following or a combination thereof:

Cyclone separator

Electrostatic precipitators

Fabric filters— filter brick

6     Chimney / Stack  1.    The chimney should have a minimum height of 10 meters above ground level and clear the

highest point of the building by not less than 3 meters for all roofs. The topography and height of adjacent buildings

within 50 meters radius should be taken into account.—6 meter already, can plus 4 meters, free cost

2. If possible the chimney should be visible to the operator from the feeding area.—according to local site
3. The addition of dilution air after combustion in order to achieve the requirement of these guidelines is

unacceptable.

4. The minimum exit velocity should be 10 m/s 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. .–yes

5. Point for the measurement of emissions shall be provided. .–yes

7     Instrumentation   Instrument for determining the inside wall temperature and not burner flame temperature must be

provided for both primary and secondary chambers.–yes

2. An audible and visible alarm must be installed to warn the operator when the secondary temperature drops to

below the required temperature.

Capacity       Not less than 500Kg/hr.

Operation     24hr-7days/week continuous operation.

Combustion chamber 2 combustion chamber.

Temp.    First combustion chamber 800-1000 C.

Secandry combustion chamber 1000-1200 C, with the possibility to be upgraded to 1400

Combustion Efficiency     99.99%

Retention time    Of the flow gases not less than 2 Sec in the hot portion.

Excess Oxygen concentration  Of primary combustion chamber 3-6% max.

Refractory    The chambers should be lined with high thermal insulating refractory bricks with suitable thickness and

with highly temp. resistance. Not less than 1400 C for the first combustion chamber, and not less than 1600 C for the

secandry combustion chamber, and at the same time prevent the Temp. of the outside body of the chamber not higher than

70 C.

Doors    Should be lined with the same bricks, and the edges lined with special suitable insulating material to prevent

any gas escaping, and the doors should be kept under negative pressure during the operation.

Air Emission Control System  With high destruction and removal efficiency (DRE). Not less than 99.9999 as per KEPA.

Wet System  If the system equiped with a CEMS washing the flow gas with water, then it should be manufactured from

suitable anti corrossion materials, and equiped with pH meter to measure and neutralize the water. It should be able to

use the water in closed recycled circuit many times before treating/ discharging into the sewage system in compliance

with KEPARS.

Chemical dosing It should be equiped with suitable autochemical dosing system to control the pH for the water of the

wet scrubber system including sensors.

Chimney       It should be suitable with the capacity and the technical specifications, with height not less than 12m from

ground level. With easy opennable sampling point equal about 3 inch, and the optimum sampling locations is at least 8D

downstream direction and 2D upstream from any flow disturbancies.

Sampling point    Should be equiped with a platform located down the sampling point by a distance not less than 1 m, and

equiped with suitable stairs from ground to the port with comfortable slope.

Ash Removal      It should be auto ash removal system.

Fuel       It should be dual system, such as diesel and natural gas.

Feeding System  Should be auto feeding system into primary chamber.

Control Room     Should be equiped with a control panel shows Temp. of the combustion burners, gas monitoring, digital

Temp. indecation for the primary/secondary chambers, digital Temp. indication for the gases…etc. it should be also

Auto operation, burnures on/off auto lamps switch, auto start/stop for air emission control system, auto gas continuous

monitoring system reading and print out of gas emission parameters…etc.

Cooling System   The primary chamber should be provided with auto cooling systemthrough nozzles to permit direct cooling

if the Temp. will be heigher than 1100 C.

Inter-lock system       The incinerator should be equiped with inter-lock system to prevent feeding the waste to the

primary chamber if the combustion Temp. less than 500 C.

Flue treatment and cleaning     To consist a combined system (wet/dry), using water, lime, active carbon and ceramic

filters.

Quenching system/Heat exchanger Should be made and manufactured from anti corrosion and acid attack materials such as

stainless steel 316 or equivalent.

Noise Level  Not more than 85 dBA during normal operation.

Inaddition    The desigh should insure that responsive fail-safe control systems are used.

The incinerator should be installed inside closed suitable building with good aeration and ventilation system.

The building has facilities for off-loading of wastes from transport vehicles. Auto cleaning system for trucks and

waste containers, and cool storage area…etc.

The quotation should included list of original spare parts for 7 years.

The quotation should include supervising, starting up and training of the operators and ministry of health

engineers inside/outside Kuwait.

Detailed drawings, catalogs should be included.Our normal activities generates  2-5 tons of assorted waste

materials per day which range from condemned carcasses, and other wastes all which need to be incinerated  at above

800Centigrade measured  flue exhaust gas.