1. Activated sludge

2. Activated sludge process

3. Activated sludge chambers

4. Activated sludge plant: detail

5. - Recirculation of activated sludge

6. Activated sludge plant: overviews

7. Activated sludge treatment systems

8. Inoculation with activated sludge

9. Activated sludge respiration inhibition testing

10. - Settling properties of activated sludge : the activated sludge in large flocs, must have good settling properties.

11. - removal of excess activated sludge,

12. Treatment plant with activated sludge

13. Activated Sludge Simulation Biodegradability Tests

14. Activated sludge degassing process and device

15. Apparatus for pre-treating waste activated sludge and method for pre-treating waste activated sludge using same

16. Activated sludge process for sewage purification

17. Figure 1 Activated sludge plant: overviews

18. Activated Sludge: Conventional Volatile NPRI substances can be emitted to air in an activated sludge process aeration vessel.

19. Waste water treatment using activated sludge processes

20. Concentration of activated sludge: # mg per litre

21. biofilm/activated sludge (compact biological treatment plant).

22. - Activated sludge : sludge sampling sites and concentration,

23. EVALUATION OF INHIBITION OF THE ACTIVATED SLUDGE

24. concentration of activated sludge solids (g/l)

25. Conditioning system for activated sludge wastewater treatment processes

26. ASB = aerated stabilization basin; AST = activated sludge treatment.

27. • Science Traveller International - Wide World of Activated Sludge

28. The known activated sludge processes have several disadvantages.

29. Biodegradabilities of chelating agents were tested with activated sludge

30. • Activated Sludge plants may or may not include disinfection.

31. The wastewater is directed into a tank where it is mixed with mixed liquor or activated sludge from an activated sludge wastewater treatment system.

32. A combination of activated sludge treatment and membrane filtration.

33. Simulation test Aerobic sewage treatment, Activated sludge units (OECD 303A)

34. Device for purifying waste water, according to the activated sludge process

35. Key words: denitrification, nitrogen fixation, quantitative hybridization, activated sludge, primary clarifier.

36. Initially, untreated water, wastewater, or activated sludge is chemically-mechanically pretreated.

37. An activated sludge process for reducing the amount of N¿2?

38. - biological treatment (activated sludge, extended aeration, phosphorus removal and settling downstream),

39. Chapter C.11 of this Annex, Activated sludge respiration inhibition test.

40. Aerated lagoons has much in common with that of activated sludge

41. Microbubble generator, activated sludge aeration system, and ballast water sterilizing system

42. - re-circulation of activated sludge and pumping off of excess sludge,

43. Collect activated sludge for inoculation from the aeration tank of a well operated waste water treatment plant or from a laboratory — scale activated sludge unit, treating predominantly domestic sewage.

44. Chapter C.11 of this Annex, Biodegradation — Activated Sludge Respiration Inhibition Test.

45. Wastewater was treated with activated sludge and filtered using the membrane module.

46. Waste activated sludge phosphorus and magnesium stripping process and struvite production system

47. The most commonly used secondary processes are activated sludge and trickling filters.

48. The treated stream is then returned to the activated sludge treatment basin.

49. The effluent from a strongly aerated laboratory activated sludge unit is used.

50. Process for treating sewage with activated sludge and device for implementing it

51. - recirculation of activated sludge accumulated at the entrance to the biological reactor,

52. Organic NPRI substances are expected to decompose in an activated sludge process.

53. Sludge will be treated using an activated sludge process, entailing prolonged aeration.

54. Ballasted activated sludge dramatically increases biological treatment capacity and helps meet ENR limits

55. However, they do not provide as good mixing as is normally achieved in activated sludge systems and therefore aerated basins do not achieve the same performance level as activated sludge units.

56. During normal conditions the activated sludge stages receive low concentrations of biodegradable COD.

57. Activated sludge will be piped from the settling basin to the pump unit.

58. The faunas of two activated sludge plants were surveyed for 12 month periods.

59. Solids retention time (SRT) is the primary control parameter for activated sludge units.

60. ECU 7,821,280 for a tertiary sewerage treatment plant based an activated sludge process.

61. A membrane tank separates treated effluent from activated sludge in a membrane tank.

62. Method and plant for the purification of waste water by the activated sludge method

63. - channel/carousel-type reactor with recirculation of activated sludge from the secondary settling basin:

64. At some point in the process, activated sludge, in the form of return activated sludge or mixed liquor, is mixed with the water or wastewater being subjected to the ballasted flocculation process.

65. Nonylphenol is an NPRI substance which can be formed in an activated-sludge process.

66. Filter the activated sludge plant influent and effluent to be examined immediately on sampling

67. Filter the activated sludge plant influent and effluent to be examined immediately on sampling.

68. This activated sludge process needs to be optimised in order to minimise energy consumption.

69. If it is more than #,# g/l, the excess activated sludge must be discarded

70. If it is more than # g/l, the excess activated sludge must be discarded

71. Key words: nitrogen removal, step feeding, anoxic–aerobic process, activated sludge, solid retention time.

72. A system for enhancing an activated sludge process including at least one biological reactor.

73. Schaefer, E. C. and Siddiqui, A.I. , `Decabromodiphenyl oxide: an activated sludge, respiration inhibition test

74. Concentration of suspended solids in activated sludge after acclimatization with synthetic sewage = ... mg/l

75. The plant will provide secondary biological treatment using activated sludge with simultaneous nitrification/denitrification.

76. Antifoaming agents which inhibit the activated sludge or contain MBAS must not be used

77. Secondary treatment processes most commonly used in Canada are aerated stabilization basins and activated sludge.

78. Activated sludge, sewage and sewage effluent contain pathogenic organisms and must be handled with caution.

79. Anti-foaming agents that inhibit the activated sludge or contain surfactants must not be used.

80. Aeration is the most critical component of a treatment system using the activated sludge process