On the Treatment of Industrial Wastewaters Carrying Oily Emulsions, Surfactans and Sulphates
✍ Scribed by Gomolka, E. ;Gomolka, B.
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 365 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0323-4320
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✦ Synopsis
O n the Treatment of Industrial Wastewaters Carrying Oiiy Emulsions, Surfactans and Sulphates
Su7rci)rnry:
The successful purification of waste waters from the leather and textile industries is possiblo by flocculation with aluminium sulphate and alkaline-earth chlorides. BaCI, proved very successful among the applied alkaline-earth chlorides. The removal of oily emulsions and tensides was very effective when the waste waters were treated by a two-stage flocculation process. By an excessive application of BaClz also a reduction of sulphate was obtained. Wastewaters treated in the neutral range showed a purification effect of 98 O/", so that the effluents were clear and colourless. The time of sedimentation amounted to 1 h only. Segregated oil was successfully removed m ith the aid of a very absorptive polyurethane foam.