Emissions are produced at numerous stages of the cement production process. There are no emission-free plants, but with modern filter technology, innovative processes and process-integrated environmental protection, we were able to significantly decrease the negative impact on people and the environment.
Our goal: continuous improvement
Our goal is to continuously reduce all emissions. To this end, we are optimising the production processes on the one hand, while on the other hand investing in post-production environmental protection, i.e. in exhaust gas purification facilities.
Besides carbon dioxide, dust, nitrogen oxides and sulphur dioxide are the main emissions in the clinker burning process. We monitor the progress of our reduction measures with indicators that correspond to the WBCSD's Guidelines for Emission Monitoring and Reporting in the Cement Industry. In addition, we examine the emissions for dioxins and furans, heavy metals and volatile organic compounds (VOCs). We modernise our facilities on an ongoing basis to reduce emissions. Our know-how across the Group is primarily developed via expert groups.
Emissions data 2007
| KPIs |
2006 |
2007 |
Reduction in %
(2000 - 2007) |
| % clinker produced in kilns covered by a monitoring system |
53 |
57 |
|
| % clinker produced by kilns which have installed continuous measurements |
60 |
74 |
|
| Emissions 2007 (t/a) |
| Dust |
|
17123 |
|
| Sox |
|
31860 |
|
| Nox |
|
90879 |
|
| Specific emissions (g/t clinker) |
| Dust |
261 |
261 |
38 |
| SOx |
544 |
486 |
33 |
| Nox |
1448 |
1388 |
17 |
Note: The data of our new plants in Georgia and India have not yet been included.