Landfill leachate pretreatment system
The utility model relates to a landfill leachate pretreatment system. The landfill leachate pretreatment system comprises a foam separator, a coagulating sedimentation system, a multi-medium filter and a security filter, the surface tension of the landfill leachate is improved through the foam separ...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to a landfill leachate pretreatment system. The landfill leachate pretreatment system comprises a foam separator, a coagulating sedimentation system, a multi-medium filter and a security filter, the surface tension of the landfill leachate is improved through the foam separator, and liquid leakage caused by gradual hydrophilization of micropores in hydrophobic membrane filaments in a membrane assembly in a subsequent process link is prevented; the pH value of the landfill leachate is adjusted to be alkaline (the pH value is 10-11) through the coagulating sedimentation system, so that the content of free ammonia in the landfill leachate is increased, and the removal of ammonia nitrogen in a subsequent process link is facilitated; suspended solids and viscose particles in the landfill leachate are removed through the multi-medium filter, and the turbidity of the landfill leachate is reduced; particles of 5 micrometers or above in the landfill leachate are removed through a security fil |
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