The invention provides a biological desulphurization
processing reactor, a biological desulphurization
processing system, and a
processing method. The reactor comprises a
three phase separator and a
reaction zone. The
reaction zone comprises an outer cylinder, a gas guiding cylinder and a lower flow guiding cylinder, such that the
reaction zone is separated into an air-lift zone, an anoxic zone, and a descent zone. The
three phase separator comprises an outer
frustum, an inner inverted
frustum, an outer
sedimentation tank, an inner
sedimentation tank, and an overflow groove, such that the
three phase separator is separated into three
sedimentation zones.
Sulfide-containing
wastewater is mixed with
oxygen-containing water from the air-lift zone in the anoxic zone; under the effect of immobilized microorganisms, the
sulfide is partially oxidized into elementary
sulfur; the mixture is delivered through the three phase separator arranged above, such that the immobilized carrier is separated from a water phase and a
gas phase, and
sulfur particles flow out with water. According to the invention, with the structure of the reactor and the processing method, a good fluidized state is maintained, and the loss of the immobilized carrier is inhibited. The reactor, the
system and the method are advantaged in high elementary
sulfur production rate, good processing capacity,
hydraulic load impact resistance, substrate load
impact resistance, simple structure, and easy amplification.