Improving the Denitrification Potential in Biological Wastewater Treatment by Dosing Carbon from Sludge Hydrolysis

Hoffmann, Erhard; Klute, R.

doi:10.1007/978-3-642-76093-8_37

Cited by 7 publications

(2 citation statements)

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“…Correlation between the level of metals in the hydrolyzed sludge effluent of the anaerobic reactor and the level of metals in each of the sludge influent to the anaerobic reactor is represented in Figure 5. The produced volatile organic acids (C2-C6) formed during this process were examined previously [5], and it was proved that they can be used as a source of carbon for the denitrification [14][15][16]. Figure 6 presents the correlation between the level of metals in the final wastewater of the upgraded plant and the level of metals in the final wastewater of the anaerobic reactor.…”

Section: Figurementioning

confidence: 99%

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Fate of heavy metals via chemical‐biological upgrading of sewage treatment plant

Abdel‐Shafy

1996

Environmental Management and Health

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Examines the fate of heavy metals in sewage water and the sludge produced. Investigates the level of metals before and after the use of chemical coagulants as well as throughout every process of the plant. Results reveal that the present upgrading of the plant has a remarkable improvement in the performance of the sewage treatment. Concludes that such upgrading of the plant reduces sewage tax because of the improvement in performance. In addition, the hydrolysis of the pre‐treated sludge can improve the de‐nitrified process and therefore can save energy, while the application of lime can be a substitution for enlarging the plant itself.

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Section: Figurementioning

confidence: 99%

“…The hydrolysis and acidification of the primary sludge exhibited considerable increase in the level of metals due to the decrease of pH-value from 9.0-9.2 to 6.0-6.5. However, the volatile organic acids (C2-C6) formed during the process can be used as a source of carbon for the denitrification [14][15][16].…”

Section: Figurementioning

confidence: 99%