Organic and NPK fertilizer making machines

Efficient Fecal Sewage Treatment Method Steps

1. Collecting and chelation treatment: pumping the solid-liquid separation and flocculation and dewatering sewage into the agglomeration and chelating processor, and
acting as a flocculating agent and a chelating agent, so that some organic solid particles in the sewage are precipitated and separated;

2. The facultative treatment: the sewage after the concentration and sequestration treatment is introduced into the anaerobic reaction tank, and the anaerobic reaction
tank has facultative microorganisms and denitrifying microorganisms, and the sewage stays in the anaerobic reaction tank for 2 to 3 hours;

3. Primary aerobic treatment: the treated sewage in the oxy-epide reaction tank is introduced into the first-stage aerobic tank, and the pollutants in the sewage in the
first-stage aerobic tank are degraded by aerobic microorganisms, and the nitrifying bacteria will be in the sewage. The ammonia nitrogen is degraded to nitrate nitrogen,
the concentration of activated sludge is between 3g and 5g, and the blower blows into the first-stage aerobic tank. The oxygen concentration in the tank is maintained at
2kg, and the sludge in the tank is partially returned to The oxygen pool, the reflux ratio of the sludge returning to the aerobic tank and the inflow of the aerobic tank
is 100% to 200%, and the excess sludge is discharged into the reflux regulating tank;

4. Secondary aerobic treatment: the sewage treated in the first-stage aerobic tank is introduced into the secondary aerobic tank, and the secondary aerobic tank has a
carrier attached with microorganisms, and the microbial flora attached to the carrier Further degrading the pollutants in the sewage, the sludge in the pool is partially
returned to the anaerobic tank, and the excess sludge is discharged into the reflux regulating tank;

5. The water treated by the secondary aerobic tank is tested to discharge the standard.



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