Biological Treatment of Formaldehyde by Activated Sludge

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概要

• 論文の詳細を見る

• The effect of formaldehyde (HCHO) on activated sludge was investigated. More than 3.3mg/l of HCHO showed lag type toxicity for O_2 uptake of nonacclimated sludge. Acclimation studies for highly concentrated HCHO showed that activated sludge could remove 90% of 5,500mg/l HCHO at 40 hours. Changes in pH, COD, and sludge weight during HCHO removal were investigated. In glucose-containing medium, sludge weight increased. Oxidation of glucose and increase of sludge weight occurred when HCHO was removed more than 80% and pH raised to 5.5. Optimal pH for HCHO removal by acclimated sludge was 6. Those results suggest that activated sludge oxidizes HCHO but are not utilized as a carbon source; addition of a carbon source such as glucose is necessary for treatment of highly concentrated HCHO.

• 島根大学の論文

著者

• TADA MANABU

  Department of Environmental Medicine, Shimane Medical University

• Tada Manabu

  Department Of Environmental Medicine Shimane Medical University

• NOMOTOBORI Takashi

  Waste Water Treatment Facilities

• SUYAMA Masumi

  Waste Water Treatment Facilities

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• AN EPIDEMIOLOGIC STUDY ON HEPATITIS B VIRUS ON AN ISOLATED ISLAND IN SHIMANE PREFECTURE
• EFFECTS OF ANTIFEBRILE AND ANTICANCER DRUGS ON HUMAN CELLS AT HIGH TEMPERATUE CONDITIONS
• Survey on the Medical Care and Daily Life of Patients 'Intractable Diseases' in Shimane Prefecture
• A 20-year Follow-up Study of the Relation Between Life Style and Stroke in the Oki Islands, Shimane Prefecture, Japan
• Biological Treatment of Formaldehyde by Activated Sludge
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