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Table A5: Furnace type and air pollution control for other metals production

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Foundary size

Type of furnace

Air pollution control

Induction

Resistance

Rotary

Oil/gas-fired crucible

Other

M1

           

M2

   

Y

   

Bag filter

M5

       

Diesel-fired furnace

Bag filter

SM7

     

Y

 

Bag filter

SM11

     

Y

 

None

SM17

     

Y

 

Bag filter

S2

     

Y

 

None

S4

     

Y

 

None

S16

Y

Y

 

Y

 

Bag filter

S17

       

Open (diesel)

None

S18

     

Y

 

None

S19

     

Y

 

None

S21

     

Y

 

None

S23

       

Pit

None

S28

     

Y

 

None

S30

Y

       

None

S32

     

Y

 

None

S40

Y

       

Filter extractor

S48

     

Y

 

None

S49

Y

       

Afterburner

Total

4

1

1

12

3

8