TWO-STAGE SEQUENCING BATCH REACTOR AEROBIC GRANULAR SLUDGE SEWAGE TREATMENT PROCESS AND DEVICE

A two-stage sequencing batch reactor aerobic granular sludge sewage treatment process, comprising the following steps: a. primary granular sludge sewage treatment: feeding primary sewage raw water into a zone A (1) of a reactor, and performing adsorptive degradation on sewage organic matter using aerobic granular sludge; b. sewage treatment using a secondary activated sludge process: introducing light flocculent sludge which is unlikely to settle in a zone A (1) of a reactor together with a mixed liquid into a zone B (2) of the reactor, introducing secondary sewage raw water into the zone B (2) of the reactor for supplementing a carbon source at the same time, using a sequencing batch reactor activated sludge process in the zone B (2) of the reactor for treatment, performing further denitrification and dephosphorization, and then standing for precipitation to achieve separation of sludge and a supernatant; and c. sludge collection and drying: discharging the residual sludge produced in the zone B (2) of the r