Process slaughterhouse split half saw construction of the sewage treatment system is essential. In the design of the slaughter wastewater treatment system, we should abide by the national guidelines and policies on environmental protection work, and comply with relevant national laws and standards.
The design of the slaughterhouse equipment should take into account the water quality characteristics of the wastewater, the amount of water treated and the advanced nature of the process technology. It should be safe, reliable, economical, safe and practical. The sewage treatment system is designed to be compact, and the three-dimensional layout should be adopted as much as possible to make full use of the underground space, reducing the floor space and the initial investment. In the design, the automatic control system of sewage treatment should be given priority, and the management is convenient, economical and practical. The sludge and other wastes generated during the sewage treatment should be properly disposed of, and the semi-saw construction should avoid secondary pollution.

        There are many treatment processes for slaughtering wastewater in the semi-saw construction , natural ecological treatment, biological treatment and chemical treatment. All kinds of processes have their advantages and limitations. They should be based on the characteristics of influent water quality, treatment and discharge requirements and comprehensive Consider the economic and management factors to choose the slaughterhouse sewage treatment equipment and process, and pay attention to the combined use of different slaughter wastewater treatment processes. The removal of organic pollutants and ammonia nitrogen from slaughter wastewater treatment equipment mainly depends on the AO biological treatment process in the equipment. The working principle is in the A grade. Because the concentration of organic matter in the sewage is very high, the microorganism is in anoxic state. At this time, the microorganism is a facultative microorganism, so the A-class pool not only has a certain organic matter removal function, but also reduces the organic load of the subsequent aerobic pool. The concentration of organic matter is reduced, but a certain amount of organic matter and higher NH3-N are still present. In order to further oxidize and decompose the organic matter, and at the same time, the nitrification can proceed smoothly under carbonization, and an aerobic biological contact oxidation tank with a lower organic load is disposed in the O stage. There are mainly aerobic microorganisms and self-oxidizing bacteria (nitrifying bacteria) in the O-class pool. Among them, aerobic microorganisms decompose organic matter into CO2 and H2O; autotrophic bacteria (nitrifying bacteria) use inorganic carbon produced by decomposition of organic matter or CO2 in the air as a nutrient source to convert NH3-N in sewage into NO-2-N. The effluent part of the NO-3-N, O-stage pool is returned to the A-stage pool to provide an electron acceptor for the A-stage tank, and the nitrogen pollution is finally eliminated by denitrification.

  The various treatment processes of the semi-saw slaughter sewage treatment equipment have their own advantages and some limitations. In practical applications, the slaughterhouse sewage should be selected according to the characteristics of the influent water quality, treatment and discharge requirements, and comprehensive consideration of economic and management factors. Processing equipment and processes, and can be combined in multiple processes.

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