| 摘要 |
Acidic waste waters, directly, and unbuffered or buffered alkaline waste waters, after acidification, are brought into contact with solid alkalising media for a time of 1/2 to 10 hours. During this, neither an automatic control circuit nor a metering apparatus for alkali solution is required. The apparatus for carrying out the method has at least one vessel (1) for receiving the material to be neutralised and the solid alkalising medium (3). <IMAGE>
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