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Emission control

The techniques and equipment available at the LCMA permit the evaluation and control of pollutants from gas emission chimneys as well as diffuse emissions (emissions from landfills or from materials) through the determination of:

Emission parameters:

    • Velocity and gas flow
    • Temperature
    • Humidity

 

Emitted compounds:

      • Inorganic: SO2, CO, CO2, NOx, …..
      • VOC:

    - Individual compounds of different chemical families: aldehydes, alcohols, ketones, esters, ethers, carboxylic acids, aromatic hydrocarbons, organonitrogentaed, organosulfurs, terpenes, glycols, etc…

    - Total organic carbon (TOC) : global value, applicable when the emitted compounds are known individually

    - Polycyclic aromatic hydrocarbons (gas and particulate phase)

        • Particles


      Emission control in chimneys

      controlemissions1.jpeg controlemissions2.jpg

      Emission control in a flexographic industry (total organic carbon/m3)

       

       

      controlemissions3.png controlemissions4.png

      VOC emission control in a waste treatment facility

       


      Diffuse emission control (material emissions)

      controlemissions5.png controlemissions6.jpg

      Polyciclic aromatic hydrocarbons emission control (timber creosoted industry)

       

       

      Reception date

      27-3

      26-3

      23-3

      22-3

      21-3

      20-3

      benzonitrile

      µg/m3

      µg/m3

      µg/m3

      µg/m3

      µg/m3

      µg/m3

      phenol

      654,0

      370,9

      219,7

      104,2

      510,6

      193,2

      naphthalene

      1078,6

      1283,9

      1834,4

      1130,8

      3601,3

      2256,6

      2-methylnaphthalene

      24058,9

      12808,8

      6310,1

      3555,7

      7536,2

      3324,1

      1-methylnaphthalene

      2247,6

      574,9

      555,5

      142,7

      4039,7

      275,0

      biphenyl

      94,4

      58,3

      65,9

      36,3

      135,2

      57,3

      1-ethylnaphthalene

      845,1

      471,5

      575,7

      354,0

      734,6

      378,2

      2,6-dimethylnaphthalene

      62,7

      39,3

      33,9

      24,5

      45,5

      27,0

      1,2-dimethylnaphthalene

      109,2

      61,8

      57,8

      42,5

      53,6

      38,0

      benzofuran

      77,9

      47,4

      57,1

      39,8

      50,7

      32,7

      dibenzofuran

      n.d.

      n.d.

      n.d.

      1,05

      n.d.

      n.d.

      Benzo(b) thiophene

      16,57

      8,97

      5,22

      3,78

      7,12

      3,88

      n.d. : not detected

       

      Diffuse emission control (superficial emission)

      controlemissions7.png controlemissions8.png

      VOC superficial emission control in a landfill

       

      Bibliography

        • Gallego, E., Perales, F.J., Roca, F.J., Guardino, X., Berenguer, M.J., “VOC and PAH emissions from creosote-treated wood in a field storage àrea”, Science of Total Environment, 402, 130-138(2008)