BVT-Merkblatt zu Abwasser- und Abgasbehandlung

Annexes
Section 5.7.5 The production of chlorine
Art. 5.7.5.1
§ 1. The provisions of this section are applicable to the establishments referred to in subsection
7.5 of the classification list.
§ 2. As a derogation from and supplementing the provisions of section 4.4.3, the following
emission limit values apply for:
1. chlorine:
a) with plants for the production of chlorine with complete liquefaction: 6 mg/Nm 3 ;
b) in the other cases: 1 mg/Nm 3 ;
2. mercury and its compounds:
a) with a mass flow of 1 g/h or more: 0.2 mg/Nm 3
b) with chlorine-alkali-electrolysis according to the amalgam process, the annual average
emissions of mercury in the air removed form the cell hall may not exceed:
i. 1.5 g per tonne of chlorine produced, for new plants
ii. 2 g per tonne of chlorine produced, for existing plants
iii. the mercury in the hydrogen compounds emitted into the atmosphere or burned, is
included in this limit value.
§ 3. The construction of new plants for the production of chlorine according to the mercury
cathode process will no longer be licensed. After the year 2010, the mercury cathode process
may no longer be applied.
Section 5.7.6 The production of sulphur
Art. 5.7.6.1
§ 1. The provisions of this section are applicable to the sulphur producing plants referred to in
subsection 7.1 of the classification list.
§ 2. With Claus-process plants, the following sulphur conversion efficiencies must be achieved:
1. with a production capacity of up to 20 tonnes of sulphur per day: 97 %;
2. with a production capacity of between 20 and 50 tonnes of sulphur per day: 98 %;
3. with a production capacity of over 50 tonnes of sulphur per day: 99 %.
Here, sulphur conversion efficiency must be understood as the proportion between the sulphur
produced and the sulphur in the feed gas.
§ 3. As a derogation from the provisions of section 4.4.3, the emissions of hydrogen sulphide in
the gaseous effluents may not exceed 10 mg/Nm 3 . To this end, the waste gases must be passed
through an incinerator.
§ 4. The SO 2-emission concentrations of Claus-process installations that form part of oil refineries
are regulated by article 5.20.2.2 ("Oil refineries") of chapter 5.20.
Section 5.7.7 The production of organic chemicals or solvents
Art. 5.7.7.1
§ 1. The provisions of this section are applicable to the establishments producing organic
chemicals or solvents, referred to in section 7 of the classification list.
368 Waste Water and Waste Gas Treatment