The invention discloses an ecological management method and
system for raising waste water of a pig farm. The method includes: A,
solid-liquid separation; B, primary
biomass purification treatment; C,secondary
biomass purification treatment; D,
tertiary biomass purification treatment; E,
quaternary biomass purification treatment; F, first-stage ecological
wetland establishment; G, second-stage ecological
wetland establishment; H, third-stage ecological
wetland establishment; I, fourth-stage ecological wetland establishment; J, fifth-stage ecological wetland establishment; K, sixth-stage ecological wetland establishment; L, seventh-stage ecological wetland establishment; M, eighth-stage ecological wetland establishment; N, ninth-stage ecological wetland establishment; O, tenth-stage ecological wetland establishment; P, underflow wetland establishment; Q, eleventh-stage ecological wetland establishment; R, twelfth-stage ecological wetland establishment; S, thirteenth-stage ecological wetland establishment; T, fourteenth-stage ecological wetland establishment; and U, fifteenth-stage ecological wetland establishment. The
system comprises a
solid-liquid separator and first to fifteenthstage ecological wetlands. The method is easy to carry out, simple to operate, and low in cost.
After treatment, the contents of main pollutants, including
ammonia nitrogen,
total nitrogen, phosphateand
total phosphorus, are stable in a control range.