BVT-Merkblatt zu Abwasser- und Abgasbehandlung

Annexes
7.6.5 Examples of Waste Gas Treatment Plants
Example 1
Process waste gas from a chemical site, several companies sharing joint equipment.
Waste gas Treatment method Discharge
[mg/Nm 3 Reduction
]
[%]
Incineration of sludge ESP and wet gas SO2: 500
from biological WWTP scrubber
CO: 250
HCl: 1
Process gas from phenol
production
Incineration Hydrocarbons: 14-15 Hydrocarbons: 99.5
Fugitive emissions from
production of aromatic
hydrocarbons
Incineration Hydrocarbons: 5-6 Hydrocarbons: about 99
Process gas from PVC
production
GAC adsorption VC monomer: 0-5
Company X (latex production)
Thermal destruction 95
Process gas from polystyrene
production
Thermal destruction VOC: 25 VOC about 95
Production:
� plastics and petrochemicals
� oil products and lubricants
� polyester
� plasticizing agents
� PVC
� SB-latex
� encapsulated polystyrene.
Example 2
Treatment of waste gas from incineration.
The treatment system consists of:
� venturi scrubber with alkali solution to remove HCl, some gaseous compounds and part of
the solids. The acidic solution from the scrubber is neutralised with lime, the solids are removed
from the solution with additives and landfilled
� radial flow scrubber to remove SO 2 with alkali or lime solution / suspension
� wet ESP, solid residues are landfilled.
Emission levels are:
PM: 2-12 mg/Nm 3
SO 2: 58-84 mg/Nm 3
CO: 2-55 mg/Nm 3
HCl: 7-22 mg/Nm 3
dioxines: 0.007-0.02 ng/Nm 3 TEQ
348 Waste Water and Waste Gas Treatment