Filter body and process for its manufacture.

摘要

Pollutants, in particular heavy metals, in waste waters and waste gases are produced in industrial production and in agriculture and are an increasing environmental hazard. In order to avoid long-term accumulation as a result of inadequately purified waste waters or waste gases, a filter body is proposed through which the media are passed and which is able to remove the pollutants almost completely. For this purpose, the filter body has a support body having a plurality of pore channels passing through it. Chemically and/or biologically active substances are taken up by the walls of the pore channels, which substances have at least part of their surface exposed. When iron dust is used as chemically active substance, the filter body is particularly highly suitable for separation of heavy metals present in waste waters or waste gases.