High efficiency sewage treatment method
A sewage treatment method, an efficient technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the difficulty of increasing treatment, low sewage reuse rate, membrane fouling Aggravate and other problems, achieve the effect of reducing treatment cost, less mud production, and reducing concentration polarization
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[0023] The source of sewage is wastewater from a pharmaceutical factory, the water quality is COD4000-5000mg / L, BOD1500-2000mg / L. After the sewage is collected, it enters the regulating tank and mixes evenly, and then enters the electrocoagulation tank for electrocoagulation. The water body after electrocoagulation passes through the sedimentation tank, and the sludge settled in the sedimentation tank enters the plate and frame filter press system 4, and the supernatant of the sedimentation tank enters the Submerged ultrafiltration tank, ultrafiltration concentrated water returns to the adjustment tank, ultrafiltration product water enters the reverse osmosis system, part of the reverse osmosis concentrated water returns to the regulation tank, and part of it is discharged. The reverse osmosis product water meets the reuse standard and can be reused for production. Among them, the power supply of electrocoagulation equipment adopts pulse power supply, the mutation pulse period ...
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