Domestic sewage treatment process and apparatus
The invention discloses a domestic sewage treatment process, which comprises the following steps that: sewage enters an anaerobic tank for degrading reaction after being filtered, outlet water automatically flows into a middle adjusting tank, and part of outlet water of an artificial wetland pond fl...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a domestic sewage treatment process, which comprises the following steps that: sewage enters an anaerobic tank for degrading reaction after being filtered, outlet water automatically flows into a middle adjusting tank, and part of outlet water of an artificial wetland pond flows back to the middle adjusting tank; water of the middle adjusting tank enters anoxic environment, high-concentration mud in the sewage is discharged to the anaerobic tank, and NO2-NO3-N ions in circulating water are subjected to denitrification under anoxic environment; the outer water after an anoxic reaction automatically flows into an aerobic biological reaction tower; and the outlet water of the aerobic biological reaction tower automatically flows into the artificial wetland pond of which the inside is provided with emerging plants, floating plants, fish and shrimps. The invention also discloses domestic sewage treatment equipment. On the basis of the prior domestic sewage treatment mode, the method suffici |
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