BVT-Merkblatt zu Abwasser- und Abgasbehandlung

Annexes
§ 2. The waste gases of plants for the production of 1,2-dichloroethane and of vinyl chloride
must be ducted to an air emission abatement installation for gaseous effluent. As a derogation
from the provisions of section 4.4.3, for 1,2-dichloroethane in the emitted waste gases an emission
limit value applies of 5 mg/Nm 3 .
§ 3. The waste gases from the reactor system and the absorber of an installation for the production
of propenenitrile must be ducted to an incinerator. As a derogation from the provisions of
section 4.4.3, for propenenitrile in the emitted waste gases an emission limit value applies of
0.2 mg/Nm 3 . The waste gasses resulting from the purification of the reaction products (distillation)
as well as the waste gases generated during the filling, must be ducted to a scrubber.
Section 5.7.8 The production of hydrocarbons in petrochemical plants not belonging to
an oil refinery
Art. 5.7.8.1
§ 1. The provisions of this section are applicable to the establishments producing hydrocarbons,
referred to in section 7.3 of the classification list.
§ 2. Waste gases discontinuously released by process plants such as gaseous effluents resulting
from the regeneration of catalytic agents or with inspection and cleaning activities must be
ducted to a combustion facility, or equivalent abatement measures should be taken.
§ 3.Gaseous effluents released with the starting up or shutdown of an installation must, to the
extent possible, be transported to a collection system for gaseous effluent or incinerated in
process heating installations. If this is not possible the gases must be transported to a flare in
which an emission level for organic substances of 1 % with respect to the total carbon content
may not be exceeded.
§4. Gaseous effluents from desulphurisation installations or other sources with a volume level
of hydrogen sulphide of over 0.4 % and a mass flow of hydrogen sulphide of over 2 tonnes/day
must be further processed.
Gaseous effluents which are not further processed must be ducted to an incinerator.
As a derogation from the provisions of chapter 4.4, emissions of hydrogen sulphide in the discharged
gaseous effluent may not exceed 10 mg/Nm 3 .
Hydrogen sulphide-containing water may only be processed in such a way that the release of
gaseous effluent into the atmosphere is avoided.
§ 5. With the transfer of base, intermediary and final products the emissions of organic substances
with a vapour pressure of over 13.3 kPa at a temperature of 35 °C must be reduced by
means of appropriate measures, such as by gas displacement systems, extraction and transfer to
an effluent gas purification installation.
§ 7. Process water may only be discharged into an open system after degassing. The gaseous
effluents collected here must be cleaned by washing or incineration.
Section 5.7.9 The production of carbon
Art. 5.7.9.1
§ 1. The provisions of this section are applicable to the plants producing carbon (hard lignite)
or electrographitic carbon (e.g. used in electrodes, current collectors or parts for appliances)
referred to in subsection 7.1 of the classification list.
Waste Water and Waste Gas Treatment 369