Extended Aeration using Oxidation Ditches Sample Clauses

Extended Aeration using Oxidation Ditches. Extended aeration using oxidation ditches has the advantage of simple construction, relatively simple operation, no preliminary settling is required, and the sludge produced tend to be stable. An oxidation pond system would normally comprise an oxidation ditch with final clarifiers and recirculation pumps to re-circulate return sludge to the inlet of the ditch. Because of the length of the aeration period (around 24 hours), power costs can be significant. Subsequent maturation ponds or effluent disinfection would be needed for bacterial reduction. The technology has the characteristics discussed in Box 6 overleaf Box 6: Characteristic of Oxidation Ponds Standard of Treatment - Very Good., except for nutrient & bacterial removal Process Reliability - Good, but subject to power outages & mechanical failure Process Complexity – Simple Limited Skills Required Operation and Maintenance - Moderate requirement for skilled O&M staff Land Requirement – Limited Land requirement Civil Construction Requirements – Moderate Civil requirements Sludge Production – Limited sludge production. Sludge stable & requires no further treatment Environmental Requirements - Some aspects need further environmental consideration
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Related to Extended Aeration using Oxidation Ditches

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