he PLC3 station control is the whole wastewater treatment of key part, be limited by space, only with the PLC3 stand of program design for example.Р2.1 Process of controlРThe PLC3 stationses were use to control to get into Pu spirit from sewage, the pond is everywhere sewage run off Pu after manage spirit the whole process of the pond.Include turn of sequence and time- switch moderate breezes machine of control various valve, pump, breeze machine to soon regulate etc. in this process.The Pu spirit pond is the core of wastewater treatment to construct a thing, sewage is e and go through a microbial living creature oxygenation in the pond in addition anic matter, the processing effect of content to sewage of the oxygen in water is to go to a pass important.Request according to the SBR craft,
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