The invention provides a treatment process of rural domestic
sewage, and belongs to the technical field of
sewage treatment, and the treatment process comprises the following steps: S1, concentrated rural domestic
sewage is separated by a grid and then introduced into a
sedimentation tank, a coagulant is added into the
sedimentation tank, a flocculating agent is added after stirring, and treated
effluent is marked as pretreated sewage; s2, the pretreated sewage is introduced into an anaerobic tank, the sewage in the anaerobic tank enters an aerobic tank through overflow,
nitrifying bacteria and modified
charcoal loaded EM
bacteria are added into the aerobic tank, the sewage finally enters a purification tank through a
water pipe, and
effluent of the purification tank is discharged water; the modified
biochar is prepared from the following raw materials:
sodium alginate, magnetic
biochar,
phosphatidylserine and
glutaraldehyde; according to the present invention, the modified
charcoal loaded EM
bacteria and the
nitrifying bacteria are jointly used in the aerobic tank so as to form the close symbiotic relationship between the EM
bacteria and the
nitrifying bacteria, such that the
phosphorus content, the
ammonia nitrogen content and the
organic matter content in the sewage are synergistically reduced, and the problem that the existing rural domestic
sewage treatment effect is poor is solved.