Study of Sludge and comparison for Various Wastewater Treatment

Three stations of sewage wastewater treatment Russtamyia, Zaapharanyia municipal waste water treatment plants and upword – flow anaerobic sludge blanket were selected to study and characterize the activated sludge.Though the experimental period bacteria, fungi, protozoa, rotifera, testate amoebae, ciliates, nematods and algae were identified in aerobic and anaerobic sludge. The species of microfauna were Streptomyces sp., Salmonella sp. ,Shigella sp. ,Staphloccous aureus, Escherichia coli while Clostridium perfringens, Bacillus sp. was in anaerobic sludge fungi as Rhizopus stolonifer, Penicillium echinulatum ,Lecane sp. ,Nematoda sp. ,Philodania sp., Arcella discoides, Nebela sp., Vorticella sp. ,Spirogyra borgeana, and Lyngbya digueti the more frequent. the BOD5 of Russtamyia, Zaapharanyia municipal waste water treatment plants and upword – flow anaerobic sludge was between 235- 35.009, 164 – 29.162, 103.71 – 76 mg/l respectively, while COD 427 – 263.82, 212.5 – 68, 211 – 130 mg/l and diameter of flocs was between 312.5 – 15, 600 – 32.5 and 562 – 1.25 m.