... systemStructure characteristic:DCW type domestic waste water treatment system can be fully, halfly buried or be ... gas pipeline filling oxygen produced by German Ott System Enngring Co. Ltd, Adopt integrated design, save ... , investment save, low cost. With automatic control system..Process new, good effect, sludge less; it is ... (mg/L)500Design outlet water (mg/L)BOD<60 COD<100 SS<30 NH3-N<15Application:1. ...