The invention discloses an
inorganic phosphorus recovery method based on biological
phosphorus removal filler for
effluent of a traditional secondary
sedimentation tank, and belongs to the fields of
pollution control, low carbon and resource regeneration. The biological
phosphorus removal
treatment unit comprises a first biological
phosphorus removal filler tank, a second biological phosphorus removal filler tank and a
sedimentation tank; the phosphorus enrichment and
recovery treatment unit comprises a phosphorus-rich
water storage pool and a chemical phosphorus
recovery pool; the residual
sludge phosphorus recovery unit comprises an anaerobic phosphorus release tank, a
sludge concentration tank and a
sludge dewatering workshop; the characteristics that phosphorus-accumulating
bacteria release phosphorus in an anaerobic state and absorb phosphorus in an aerobic condition are fully utilized, ineffective phosphorus circulation in the
sewage treatment process is reduced, phosphorus in
sewage is efficiently removed, the phosphorus is enriched to a phosphorus-rich
water storage pool, and recycling of phosphorus in
sewage is facilitated. And a biological active filler of a special functional
flora is prepared by adopting a microbial immobilization technology to treat sewage, so that the operation stability of the
system is remarkably enhanced, and the phosphorus removal efficiency is greatly improved.