| 31. | These ponds use gravity to chemical precipitation, biological treatment ( such as an activated sludge process ), and evaporation.
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| 32. | Construction costs of this new technology could even be less expensive than the activated sludge systems that are currently in use.
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| 33. | Suspension mixed lagoons flow through activated sludge systems where the effluent has the same composition as the mixed liquor in the lagoon.
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| 34. | Therefore the installation can be built very compact, needing only 20 % of the surface area of conventional activated sludge systems.
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| 35. | "Nocardia " species are often responsible for the accumulation of foam that occurs in activated sludge during sewage treatment.
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| 36. | A ?00 million upgrade to the second Activated Sludge Plant began in 2014, and is expected to be completed in 2018.
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| 37. | The MBBR system is often installed as a retrofit of existing activated sludge tanks to increase the capacity of the existing system.
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| 38. | BOD values are determined by incubating samples for 5 days with proper source of microbes, usually activated sludge collected from wastewater plants.
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| 39. | The Jones Island Plant was among the first sewage treatment plants in the United States to succeed in using the activated sludge treatment process.
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| 40. | Acinetobacter " which was isolated from activated sludge . " Acinetobacter bouvetii " is named after the French microbiologist Philippe Bouvet.
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