| 摘要 |
The invention is concerned with clarifying contaminated liquids and, in one embodiment, contaminated liquid is continuously supplied (15) to a first vessel (11), a first treatment material (34) is intimately mixed (33) into the contaminated liquid in the first vessel, the contaminated liquid/first treatment mixture is passed to a second vessel (26) and a second treatment material (36) is added to the contaminated liquid and first material mixture and intimately mixed therewith (35). The first treatment material preferably comprises one or more compound of the group including soluble magnesium salts, ferrous salts, manganous compounds and cuprous compounds and the second material is an alkali intented to reduce the pH of the final mixture. After the second treatment material has been added the impurities separated out from the final mixture are extracted from one outlet from the second vessel and clarified liquid is discharged from another outlet of the second vessel.
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