The invention discloses a mark reaching treatment method of packaged
wastewater in an industrial park. Aiming at the characteristics that the source of the packaged
wastewater in the industrial part is wide, the components are complex, and the mark reaching treatment is not reliable by adopting the general
biochemistry technology, firstly, the packaged
wastewater in the industrial park is adjusted the pH value by mixing isotrope, and the
impact load of the
water quality and quantity is reduced; secondly, the biochemical property can be improved through the oxidation pretreatment, the removal rate of the
organic matter is about 10-40 percent, the COD is reduced to 400-1000 mg / L, the biochemical property (B / C) can be improved by more than 0.3; thirdly, 0.01-0.1 percent of
active carbon is added into a polytype main biochemical
treatment system of
activated sludge and biomembrane to form a PACT
system, the removal rate of the
organic matter is about 70-90 percent, the COD can be reduced to 120-150 mg / L; fourthly,
suspended organic matter and inorganic matter are removed by coagulating
sedimentation, the removal rate of the
organic matter is about 10-30 percent, the COD can be stabilized under 100 mg / L, and the requirement (the COD is less than 100 mg / L) of the
sewage complex
discharge national standard (GB 8978-1996) is achieved.